Mercurial > hg > nginx
annotate src/http/modules/ngx_http_mp4_module.c @ 4585:3f874d645f45
Mp4: sanity checks cleanup.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Thu, 12 Apr 2012 12:18:14 +0000 |
parents | 778ea2f7268c |
children | 2b6cb7528409 |
rev | line source |
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4085 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
4085 | 5 */ |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 #include <ngx_http.h> | |
10 | |
11 | |
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12 #define NGX_HTTP_MP4_TRAK_ATOM 0 |
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13 #define NGX_HTTP_MP4_TKHD_ATOM 1 |
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14 #define NGX_HTTP_MP4_MDIA_ATOM 2 |
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15 #define NGX_HTTP_MP4_MDHD_ATOM 3 |
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16 #define NGX_HTTP_MP4_HDLR_ATOM 4 |
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17 #define NGX_HTTP_MP4_MINF_ATOM 5 |
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18 #define NGX_HTTP_MP4_VMHD_ATOM 6 |
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19 #define NGX_HTTP_MP4_SMHD_ATOM 7 |
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20 #define NGX_HTTP_MP4_DINF_ATOM 8 |
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21 #define NGX_HTTP_MP4_STBL_ATOM 9 |
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22 #define NGX_HTTP_MP4_STSD_ATOM 10 |
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23 #define NGX_HTTP_MP4_STTS_ATOM 11 |
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24 #define NGX_HTTP_MP4_STTS_DATA 12 |
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25 #define NGX_HTTP_MP4_STSS_ATOM 13 |
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26 #define NGX_HTTP_MP4_STSS_DATA 14 |
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27 #define NGX_HTTP_MP4_CTTS_ATOM 15 |
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28 #define NGX_HTTP_MP4_CTTS_DATA 16 |
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29 #define NGX_HTTP_MP4_STSC_ATOM 17 |
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30 #define NGX_HTTP_MP4_STSC_CHUNK 18 |
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31 #define NGX_HTTP_MP4_STSC_DATA 19 |
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32 #define NGX_HTTP_MP4_STSZ_ATOM 20 |
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33 #define NGX_HTTP_MP4_STSZ_DATA 21 |
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34 #define NGX_HTTP_MP4_STCO_ATOM 22 |
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35 #define NGX_HTTP_MP4_STCO_DATA 23 |
4112 | 36 #define NGX_HTTP_MP4_CO64_ATOM 24 |
37 #define NGX_HTTP_MP4_CO64_DATA 25 | |
38 | |
39 #define NGX_HTTP_MP4_LAST_ATOM NGX_HTTP_MP4_CO64_DATA | |
4085 | 40 |
41 | |
42 typedef struct { | |
43 size_t buffer_size; | |
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44 size_t max_buffer_size; |
4085 | 45 } ngx_http_mp4_conf_t; |
46 | |
47 | |
48 typedef struct { | |
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49 u_char chunk[4]; |
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50 u_char samples[4]; |
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51 u_char id[4]; |
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52 } ngx_mp4_stsc_entry_t; |
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53 |
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54 |
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55 typedef struct { |
4085 | 56 uint32_t timescale; |
57 uint32_t time_to_sample_entries; | |
58 uint32_t sample_to_chunk_entries; | |
59 uint32_t sync_samples_entries; | |
60 uint32_t composition_offset_entries; | |
61 uint32_t sample_sizes_entries; | |
62 uint32_t chunks; | |
63 | |
64 ngx_uint_t start_sample; | |
65 ngx_uint_t start_chunk; | |
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66 ngx_uint_t chunk_samples; |
4112 | 67 uint64_t chunk_samples_size; |
4085 | 68 off_t start_offset; |
69 | |
70 size_t tkhd_size; | |
71 size_t mdhd_size; | |
72 size_t hdlr_size; | |
73 size_t vmhd_size; | |
74 size_t smhd_size; | |
75 size_t dinf_size; | |
76 size_t size; | |
77 | |
78 ngx_chain_t out[NGX_HTTP_MP4_LAST_ATOM + 1]; | |
79 | |
80 ngx_buf_t trak_atom_buf; | |
81 ngx_buf_t tkhd_atom_buf; | |
82 ngx_buf_t mdia_atom_buf; | |
83 ngx_buf_t mdhd_atom_buf; | |
84 ngx_buf_t hdlr_atom_buf; | |
85 ngx_buf_t minf_atom_buf; | |
86 ngx_buf_t vmhd_atom_buf; | |
87 ngx_buf_t smhd_atom_buf; | |
88 ngx_buf_t dinf_atom_buf; | |
89 ngx_buf_t stbl_atom_buf; | |
90 ngx_buf_t stsd_atom_buf; | |
91 ngx_buf_t stts_atom_buf; | |
92 ngx_buf_t stts_data_buf; | |
93 ngx_buf_t stss_atom_buf; | |
94 ngx_buf_t stss_data_buf; | |
95 ngx_buf_t ctts_atom_buf; | |
96 ngx_buf_t ctts_data_buf; | |
97 ngx_buf_t stsc_atom_buf; | |
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98 ngx_buf_t stsc_chunk_buf; |
4085 | 99 ngx_buf_t stsc_data_buf; |
100 ngx_buf_t stsz_atom_buf; | |
101 ngx_buf_t stsz_data_buf; | |
4107 | 102 ngx_buf_t stco_atom_buf; |
103 ngx_buf_t stco_data_buf; | |
4112 | 104 ngx_buf_t co64_atom_buf; |
105 ngx_buf_t co64_data_buf; | |
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106 |
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107 ngx_mp4_stsc_entry_t stsc_chunk_entry; |
4085 | 108 } ngx_http_mp4_trak_t; |
109 | |
110 | |
111 typedef struct { | |
112 ngx_file_t file; | |
113 | |
114 u_char *buffer; | |
115 u_char *buffer_start; | |
116 u_char *buffer_pos; | |
117 u_char *buffer_end; | |
118 size_t buffer_size; | |
119 | |
120 off_t offset; | |
121 off_t end; | |
122 off_t content_length; | |
123 ngx_uint_t start; | |
124 uint32_t timescale; | |
125 ngx_http_request_t *request; | |
126 ngx_array_t trak; | |
127 ngx_http_mp4_trak_t traks[2]; | |
128 | |
129 size_t ftyp_size; | |
130 size_t moov_size; | |
131 | |
132 ngx_chain_t *out; | |
133 ngx_chain_t ftyp_atom; | |
134 ngx_chain_t moov_atom; | |
135 ngx_chain_t mvhd_atom; | |
136 ngx_chain_t mdat_atom; | |
137 ngx_chain_t mdat_data; | |
138 | |
139 ngx_buf_t ftyp_atom_buf; | |
140 ngx_buf_t moov_atom_buf; | |
141 ngx_buf_t mvhd_atom_buf; | |
142 ngx_buf_t mdat_atom_buf; | |
143 ngx_buf_t mdat_data_buf; | |
144 | |
145 u_char moov_atom_header[8]; | |
146 u_char mdat_atom_header[16]; | |
147 } ngx_http_mp4_file_t; | |
148 | |
149 | |
150 typedef struct { | |
151 char *name; | |
152 ngx_int_t (*handler)(ngx_http_mp4_file_t *mp4, | |
153 uint64_t atom_data_size); | |
154 } ngx_http_mp4_atom_handler_t; | |
155 | |
156 | |
157 #define ngx_mp4_atom_header(mp4) (mp4->buffer_pos - 8) | |
158 #define ngx_mp4_atom_data(mp4) mp4->buffer_pos | |
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159 #define ngx_mp4_atom_data_size(t) (uint64_t) (sizeof(t) - 8) |
4085 | 160 #define ngx_mp4_atom_next(mp4, n) mp4->buffer_pos += n; mp4->offset += n |
161 | |
162 | |
163 #define ngx_mp4_set_atom_name(p, n1, n2, n3, n4) \ | |
164 ((u_char *) (p))[4] = n1; \ | |
165 ((u_char *) (p))[5] = n2; \ | |
166 ((u_char *) (p))[6] = n3; \ | |
167 ((u_char *) (p))[7] = n4 | |
168 | |
169 #define ngx_mp4_get_32value(p) \ | |
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170 ( ((uint32_t) ((u_char *) (p))[0] << 24) \ |
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171 + ( ((u_char *) (p))[1] << 16) \ |
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172 + ( ((u_char *) (p))[2] << 8) \ |
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173 + ( ((u_char *) (p))[3]) ) |
4085 | 174 |
175 #define ngx_mp4_set_32value(p, n) \ | |
176 ((u_char *) (p))[0] = (u_char) ((n) >> 24); \ | |
177 ((u_char *) (p))[1] = (u_char) ((n) >> 16); \ | |
178 ((u_char *) (p))[2] = (u_char) ((n) >> 8); \ | |
179 ((u_char *) (p))[3] = (u_char) (n) | |
180 | |
181 #define ngx_mp4_get_64value(p) \ | |
182 ( ((uint64_t) ((u_char *) (p))[0] << 56) \ | |
183 + ((uint64_t) ((u_char *) (p))[1] << 48) \ | |
184 + ((uint64_t) ((u_char *) (p))[2] << 40) \ | |
185 + ((uint64_t) ((u_char *) (p))[3] << 32) \ | |
186 + ((uint64_t) ((u_char *) (p))[4] << 24) \ | |
187 + ( ((u_char *) (p))[5] << 16) \ | |
188 + ( ((u_char *) (p))[6] << 8) \ | |
189 + ( ((u_char *) (p))[7]) ) | |
190 | |
191 #define ngx_mp4_set_64value(p, n) \ | |
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192 ((u_char *) (p))[0] = (u_char) ((uint64_t) (n) >> 56); \ |
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193 ((u_char *) (p))[1] = (u_char) ((uint64_t) (n) >> 48); \ |
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194 ((u_char *) (p))[2] = (u_char) ((uint64_t) (n) >> 40); \ |
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195 ((u_char *) (p))[3] = (u_char) ((uint64_t) (n) >> 32); \ |
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196 ((u_char *) (p))[4] = (u_char) ( (n) >> 24); \ |
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197 ((u_char *) (p))[5] = (u_char) ( (n) >> 16); \ |
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198 ((u_char *) (p))[6] = (u_char) ( (n) >> 8); \ |
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199 ((u_char *) (p))[7] = (u_char) (n) |
4085 | 200 |
201 #define ngx_mp4_last_trak(mp4) \ | |
202 &((ngx_http_mp4_trak_t *) mp4->trak.elts)[mp4->trak.nelts - 1] | |
203 | |
204 | |
205 static ngx_int_t ngx_http_mp4_process(ngx_http_mp4_file_t *mp4); | |
206 static ngx_int_t ngx_http_mp4_read_atom(ngx_http_mp4_file_t *mp4, | |
207 ngx_http_mp4_atom_handler_t *atom, uint64_t atom_data_size); | |
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208 static ngx_int_t ngx_http_mp4_read(ngx_http_mp4_file_t *mp4, size_t size); |
4085 | 209 static ngx_int_t ngx_http_mp4_read_ftyp_atom(ngx_http_mp4_file_t *mp4, |
210 uint64_t atom_data_size); | |
211 static ngx_int_t ngx_http_mp4_read_moov_atom(ngx_http_mp4_file_t *mp4, | |
212 uint64_t atom_data_size); | |
213 static ngx_int_t ngx_http_mp4_read_mdat_atom(ngx_http_mp4_file_t *mp4, | |
214 uint64_t atom_data_size); | |
215 static size_t ngx_http_mp4_update_mdat_atom(ngx_http_mp4_file_t *mp4, | |
216 off_t start_offset); | |
217 static ngx_int_t ngx_http_mp4_read_mvhd_atom(ngx_http_mp4_file_t *mp4, | |
218 uint64_t atom_data_size); | |
219 static ngx_int_t ngx_http_mp4_read_trak_atom(ngx_http_mp4_file_t *mp4, | |
220 uint64_t atom_data_size); | |
221 static void ngx_http_mp4_update_trak_atom(ngx_http_mp4_file_t *mp4, | |
222 ngx_http_mp4_trak_t *trak); | |
223 static ngx_int_t ngx_http_mp4_read_cmov_atom(ngx_http_mp4_file_t *mp4, | |
224 uint64_t atom_data_size); | |
225 static ngx_int_t ngx_http_mp4_read_tkhd_atom(ngx_http_mp4_file_t *mp4, | |
226 uint64_t atom_data_size); | |
227 static ngx_int_t ngx_http_mp4_read_mdia_atom(ngx_http_mp4_file_t *mp4, | |
228 uint64_t atom_data_size); | |
229 static void ngx_http_mp4_update_mdia_atom(ngx_http_mp4_file_t *mp4, | |
230 ngx_http_mp4_trak_t *trak); | |
231 static ngx_int_t ngx_http_mp4_read_mdhd_atom(ngx_http_mp4_file_t *mp4, | |
232 uint64_t atom_data_size); | |
233 static ngx_int_t ngx_http_mp4_read_hdlr_atom(ngx_http_mp4_file_t *mp4, | |
234 uint64_t atom_data_size); | |
235 static ngx_int_t ngx_http_mp4_read_minf_atom(ngx_http_mp4_file_t *mp4, | |
236 uint64_t atom_data_size); | |
237 static void ngx_http_mp4_update_minf_atom(ngx_http_mp4_file_t *mp4, | |
238 ngx_http_mp4_trak_t *trak); | |
239 static ngx_int_t ngx_http_mp4_read_dinf_atom(ngx_http_mp4_file_t *mp4, | |
240 uint64_t atom_data_size); | |
241 static ngx_int_t ngx_http_mp4_read_vmhd_atom(ngx_http_mp4_file_t *mp4, | |
242 uint64_t atom_data_size); | |
243 static ngx_int_t ngx_http_mp4_read_smhd_atom(ngx_http_mp4_file_t *mp4, | |
244 uint64_t atom_data_size); | |
245 static ngx_int_t ngx_http_mp4_read_stbl_atom(ngx_http_mp4_file_t *mp4, | |
246 uint64_t atom_data_size); | |
247 static void ngx_http_mp4_update_stbl_atom(ngx_http_mp4_file_t *mp4, | |
248 ngx_http_mp4_trak_t *trak); | |
249 static ngx_int_t ngx_http_mp4_read_stsd_atom(ngx_http_mp4_file_t *mp4, | |
250 uint64_t atom_data_size); | |
251 static ngx_int_t ngx_http_mp4_read_stts_atom(ngx_http_mp4_file_t *mp4, | |
252 uint64_t atom_data_size); | |
253 static ngx_int_t ngx_http_mp4_update_stts_atom(ngx_http_mp4_file_t *mp4, | |
254 ngx_http_mp4_trak_t *trak); | |
255 static ngx_int_t ngx_http_mp4_read_stss_atom(ngx_http_mp4_file_t *mp4, | |
256 uint64_t atom_data_size); | |
257 static ngx_int_t ngx_http_mp4_update_stss_atom(ngx_http_mp4_file_t *mp4, | |
258 ngx_http_mp4_trak_t *trak); | |
259 static ngx_int_t ngx_http_mp4_read_ctts_atom(ngx_http_mp4_file_t *mp4, | |
260 uint64_t atom_data_size); | |
261 static void ngx_http_mp4_update_ctts_atom(ngx_http_mp4_file_t *mp4, | |
262 ngx_http_mp4_trak_t *trak); | |
263 static ngx_int_t ngx_http_mp4_read_stsc_atom(ngx_http_mp4_file_t *mp4, | |
264 uint64_t atom_data_size); | |
265 static ngx_int_t ngx_http_mp4_update_stsc_atom(ngx_http_mp4_file_t *mp4, | |
266 ngx_http_mp4_trak_t *trak); | |
267 static ngx_int_t ngx_http_mp4_read_stsz_atom(ngx_http_mp4_file_t *mp4, | |
268 uint64_t atom_data_size); | |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
269 static ngx_int_t ngx_http_mp4_update_stsz_atom(ngx_http_mp4_file_t *mp4, |
4085 | 270 ngx_http_mp4_trak_t *trak); |
271 static ngx_int_t ngx_http_mp4_read_stco_atom(ngx_http_mp4_file_t *mp4, | |
272 uint64_t atom_data_size); | |
273 static ngx_int_t ngx_http_mp4_update_stco_atom(ngx_http_mp4_file_t *mp4, | |
274 ngx_http_mp4_trak_t *trak); | |
275 static void ngx_http_mp4_adjust_stco_atom(ngx_http_mp4_file_t *mp4, | |
276 ngx_http_mp4_trak_t *trak, int32_t adjustment); | |
4112 | 277 static ngx_int_t ngx_http_mp4_read_co64_atom(ngx_http_mp4_file_t *mp4, |
278 uint64_t atom_data_size); | |
279 static ngx_int_t ngx_http_mp4_update_co64_atom(ngx_http_mp4_file_t *mp4, | |
280 ngx_http_mp4_trak_t *trak); | |
281 static void ngx_http_mp4_adjust_co64_atom(ngx_http_mp4_file_t *mp4, | |
282 ngx_http_mp4_trak_t *trak, off_t adjustment); | |
4085 | 283 static char *ngx_http_mp4(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
284 static void *ngx_http_mp4_create_conf(ngx_conf_t *cf); | |
285 static char *ngx_http_mp4_merge_conf(ngx_conf_t *cf, void *parent, void *child); | |
286 | |
287 static ngx_command_t ngx_http_mp4_commands[] = { | |
288 | |
289 { ngx_string("mp4"), | |
290 NGX_HTTP_LOC_CONF|NGX_CONF_NOARGS, | |
291 ngx_http_mp4, | |
292 0, | |
293 0, | |
294 NULL }, | |
295 | |
296 { ngx_string("mp4_buffer_size"), | |
297 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
298 ngx_conf_set_size_slot, | |
299 NGX_HTTP_LOC_CONF_OFFSET, | |
300 offsetof(ngx_http_mp4_conf_t, buffer_size), | |
301 NULL }, | |
302 | |
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
303 { ngx_string("mp4_max_buffer_size"), |
4085 | 304 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
305 ngx_conf_set_size_slot, | |
306 NGX_HTTP_LOC_CONF_OFFSET, | |
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
307 offsetof(ngx_http_mp4_conf_t, max_buffer_size), |
4085 | 308 NULL }, |
309 | |
310 ngx_null_command | |
311 }; | |
312 | |
313 | |
314 static ngx_http_module_t ngx_http_mp4_module_ctx = { | |
315 NULL, /* preconfiguration */ | |
316 NULL, /* postconfiguration */ | |
317 | |
318 NULL, /* create main configuration */ | |
319 NULL, /* init main configuration */ | |
320 | |
321 NULL, /* create server configuration */ | |
322 NULL, /* merge server configuration */ | |
323 | |
324 ngx_http_mp4_create_conf, /* create location configuration */ | |
325 ngx_http_mp4_merge_conf /* merge location configuration */ | |
326 }; | |
327 | |
328 | |
329 ngx_module_t ngx_http_mp4_module = { | |
330 NGX_MODULE_V1, | |
331 &ngx_http_mp4_module_ctx, /* module context */ | |
332 ngx_http_mp4_commands, /* module directives */ | |
333 NGX_HTTP_MODULE, /* module type */ | |
334 NULL, /* init master */ | |
335 NULL, /* init module */ | |
336 NULL, /* init process */ | |
337 NULL, /* init thread */ | |
338 NULL, /* exit thread */ | |
339 NULL, /* exit process */ | |
340 NULL, /* exit master */ | |
341 NGX_MODULE_V1_PADDING | |
342 }; | |
343 | |
344 | |
345 static ngx_http_mp4_atom_handler_t ngx_http_mp4_atoms[] = { | |
346 { "ftyp", ngx_http_mp4_read_ftyp_atom }, | |
347 { "moov", ngx_http_mp4_read_moov_atom }, | |
348 { "mdat", ngx_http_mp4_read_mdat_atom }, | |
349 { NULL, NULL } | |
350 }; | |
351 | |
352 static ngx_http_mp4_atom_handler_t ngx_http_mp4_moov_atoms[] = { | |
353 { "mvhd", ngx_http_mp4_read_mvhd_atom }, | |
354 { "trak", ngx_http_mp4_read_trak_atom }, | |
355 { "cmov", ngx_http_mp4_read_cmov_atom }, | |
356 { NULL, NULL } | |
357 }; | |
358 | |
359 static ngx_http_mp4_atom_handler_t ngx_http_mp4_trak_atoms[] = { | |
360 { "tkhd", ngx_http_mp4_read_tkhd_atom }, | |
361 { "mdia", ngx_http_mp4_read_mdia_atom }, | |
362 { NULL, NULL } | |
363 }; | |
364 | |
365 static ngx_http_mp4_atom_handler_t ngx_http_mp4_mdia_atoms[] = { | |
366 { "mdhd", ngx_http_mp4_read_mdhd_atom }, | |
367 { "hdlr", ngx_http_mp4_read_hdlr_atom }, | |
368 { "minf", ngx_http_mp4_read_minf_atom }, | |
369 { NULL, NULL } | |
370 }; | |
371 | |
372 static ngx_http_mp4_atom_handler_t ngx_http_mp4_minf_atoms[] = { | |
373 { "vmhd", ngx_http_mp4_read_vmhd_atom }, | |
374 { "smhd", ngx_http_mp4_read_smhd_atom }, | |
375 { "dinf", ngx_http_mp4_read_dinf_atom }, | |
376 { "stbl", ngx_http_mp4_read_stbl_atom }, | |
377 { NULL, NULL } | |
378 }; | |
379 | |
380 static ngx_http_mp4_atom_handler_t ngx_http_mp4_stbl_atoms[] = { | |
381 { "stsd", ngx_http_mp4_read_stsd_atom }, | |
382 { "stts", ngx_http_mp4_read_stts_atom }, | |
383 { "stss", ngx_http_mp4_read_stss_atom }, | |
384 { "ctts", ngx_http_mp4_read_ctts_atom }, | |
385 { "stsc", ngx_http_mp4_read_stsc_atom }, | |
386 { "stsz", ngx_http_mp4_read_stsz_atom }, | |
387 { "stco", ngx_http_mp4_read_stco_atom }, | |
4112 | 388 { "co64", ngx_http_mp4_read_co64_atom }, |
4085 | 389 { NULL, NULL } |
390 }; | |
391 | |
392 | |
393 static ngx_int_t | |
394 ngx_http_mp4_handler(ngx_http_request_t *r) | |
395 { | |
396 u_char *last; | |
397 size_t root; | |
398 ngx_int_t rc, start; | |
399 ngx_uint_t level; | |
400 ngx_str_t path, value; | |
401 ngx_log_t *log; | |
402 ngx_buf_t *b; | |
403 ngx_chain_t out; | |
404 ngx_http_mp4_file_t *mp4; | |
405 ngx_open_file_info_t of; | |
406 ngx_http_core_loc_conf_t *clcf; | |
407 | |
408 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { | |
409 return NGX_HTTP_NOT_ALLOWED; | |
410 } | |
411 | |
412 if (r->uri.data[r->uri.len - 1] == '/') { | |
413 return NGX_DECLINED; | |
414 } | |
415 | |
416 rc = ngx_http_discard_request_body(r); | |
417 | |
418 if (rc != NGX_OK) { | |
419 return rc; | |
420 } | |
421 | |
422 last = ngx_http_map_uri_to_path(r, &path, &root, 0); | |
423 if (last == NULL) { | |
424 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
425 } | |
426 | |
427 log = r->connection->log; | |
428 | |
429 path.len = last - path.data; | |
430 | |
431 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, | |
432 "http mp4 filename: \"%V\"", &path); | |
433 | |
434 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); | |
435 | |
436 ngx_memzero(&of, sizeof(ngx_open_file_info_t)); | |
437 | |
438 of.read_ahead = clcf->read_ahead; | |
4087
3aa3b7bb9f0d
Bugfix of r4086: directio was always enabled if mp4 file was sent as is.
Igor Sysoev <igor@sysoev.ru>
parents:
4085
diff
changeset
|
439 of.directio = NGX_MAX_OFF_T_VALUE; |
4085 | 440 of.valid = clcf->open_file_cache_valid; |
441 of.min_uses = clcf->open_file_cache_min_uses; | |
442 of.errors = clcf->open_file_cache_errors; | |
443 of.events = clcf->open_file_cache_events; | |
4494
13e09cf11d4e
Disable symlinks: initialization of the "disable_symlinks" field in
Valentin Bartenev <vbart@nginx.com>
parents:
4478
diff
changeset
|
444 |
13e09cf11d4e
Disable symlinks: initialization of the "disable_symlinks" field in
Valentin Bartenev <vbart@nginx.com>
parents:
4478
diff
changeset
|
445 if (ngx_http_set_disable_symlinks(r, clcf, &path, &of) != NGX_OK) { |
13e09cf11d4e
Disable symlinks: initialization of the "disable_symlinks" field in
Valentin Bartenev <vbart@nginx.com>
parents:
4478
diff
changeset
|
446 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
13e09cf11d4e
Disable symlinks: initialization of the "disable_symlinks" field in
Valentin Bartenev <vbart@nginx.com>
parents:
4478
diff
changeset
|
447 } |
4085 | 448 |
449 if (ngx_open_cached_file(clcf->open_file_cache, &path, &of, r->pool) | |
450 != NGX_OK) | |
451 { | |
452 switch (of.err) { | |
453 | |
454 case 0: | |
455 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
456 | |
457 case NGX_ENOENT: | |
458 case NGX_ENOTDIR: | |
459 case NGX_ENAMETOOLONG: | |
460 | |
461 level = NGX_LOG_ERR; | |
462 rc = NGX_HTTP_NOT_FOUND; | |
463 break; | |
464 | |
465 case NGX_EACCES: | |
4478
08713bac87fc
Support for disable_symlinks in various modules.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
466 #if (NGX_HAVE_OPENAT) |
08713bac87fc
Support for disable_symlinks in various modules.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
467 case NGX_EMLINK: |
08713bac87fc
Support for disable_symlinks in various modules.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
468 case NGX_ELOOP: |
08713bac87fc
Support for disable_symlinks in various modules.
Andrey Belov <defan@nginx.com>
parents:
4412
diff
changeset
|
469 #endif |
4085 | 470 |
471 level = NGX_LOG_ERR; | |
472 rc = NGX_HTTP_FORBIDDEN; | |
473 break; | |
474 | |
475 default: | |
476 | |
477 level = NGX_LOG_CRIT; | |
478 rc = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
479 break; | |
480 } | |
481 | |
482 if (rc != NGX_HTTP_NOT_FOUND || clcf->log_not_found) { | |
483 ngx_log_error(level, log, of.err, | |
484 "%s \"%s\" failed", of.failed, path.data); | |
485 } | |
486 | |
487 return rc; | |
488 } | |
489 | |
490 if (!of.is_file) { | |
491 | |
492 if (ngx_close_file(of.fd) == NGX_FILE_ERROR) { | |
493 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
494 ngx_close_file_n " \"%s\" failed", path.data); | |
495 } | |
496 | |
497 return NGX_DECLINED; | |
498 } | |
499 | |
500 r->root_tested = !r->error_page; | |
501 r->allow_ranges = 1; | |
502 | |
503 start = -1; | |
504 r->headers_out.content_length_n = of.size; | |
505 mp4 = NULL; | |
506 b = NULL; | |
507 | |
508 if (r->args.len) { | |
509 | |
510 if (ngx_http_arg(r, (u_char *) "start", 5, &value) == NGX_OK) { | |
511 | |
4156
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
512 /* |
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
513 * A Flash player may send start value with a lot of digits |
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
514 * after dot so strtod() is used instead of atofp(). NaNs and |
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
515 * infinities become negative numbers after (int) conversion. |
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
516 */ |
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
517 |
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
518 ngx_set_errno(0); |
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
519 start = (int) (strtod((char *) value.data, NULL) * 1000); |
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
520 |
67a4654ba7d9
Using strtod() instead of atofp() to support a lot of digits after dot in
Igor Sysoev <igor@sysoev.ru>
parents:
4155
diff
changeset
|
521 if (ngx_errno == 0 && start >= 0) { |
4085 | 522 r->allow_ranges = 0; |
523 | |
524 mp4 = ngx_pcalloc(r->pool, sizeof(ngx_http_mp4_file_t)); | |
525 if (mp4 == NULL) { | |
526 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
527 } | |
528 | |
529 mp4->file.fd = of.fd; | |
530 mp4->file.name = path; | |
531 mp4->file.log = r->connection->log;; | |
532 mp4->end = of.size; | |
533 mp4->start = (ngx_uint_t) start; | |
534 mp4->request = r; | |
535 | |
536 switch (ngx_http_mp4_process(mp4)) { | |
537 | |
538 case NGX_DECLINED: | |
539 if (mp4->buffer) { | |
540 ngx_pfree(r->pool, mp4->buffer); | |
541 } | |
542 | |
543 ngx_pfree(r->pool, mp4); | |
544 mp4 = NULL; | |
545 | |
546 break; | |
547 | |
548 case NGX_OK: | |
549 r->headers_out.content_length_n = mp4->content_length; | |
550 break; | |
551 | |
552 default: /* NGX_ERROR */ | |
553 if (mp4->buffer) { | |
554 ngx_pfree(r->pool, mp4->buffer); | |
555 } | |
556 | |
557 ngx_pfree(r->pool, mp4); | |
558 | |
559 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
560 } | |
561 } | |
562 } | |
563 } | |
564 | |
565 log->action = "sending mp4 to client"; | |
566 | |
567 if (clcf->directio <= of.size) { | |
568 | |
569 /* | |
570 * DIRECTIO is set on transfer only | |
571 * to allow kernel to cache "moov" atom | |
572 */ | |
573 | |
574 if (ngx_directio_on(of.fd) == NGX_FILE_ERROR) { | |
575 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, | |
576 ngx_directio_on_n " \"%s\" failed", path.data); | |
577 } | |
578 | |
4087
3aa3b7bb9f0d
Bugfix of r4086: directio was always enabled if mp4 file was sent as is.
Igor Sysoev <igor@sysoev.ru>
parents:
4085
diff
changeset
|
579 of.is_directio = 1; |
3aa3b7bb9f0d
Bugfix of r4086: directio was always enabled if mp4 file was sent as is.
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parents:
4085
diff
changeset
|
580 |
4085 | 581 if (mp4) { |
582 mp4->file.directio = 1; | |
583 } | |
584 } | |
585 | |
586 r->headers_out.status = NGX_HTTP_OK; | |
587 r->headers_out.last_modified_time = of.mtime; | |
588 | |
589 if (ngx_http_set_content_type(r) != NGX_OK) { | |
590 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
591 } | |
592 | |
593 if (mp4 == NULL) { | |
594 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
595 if (b == NULL) { | |
596 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
597 } | |
598 | |
599 b->file = ngx_pcalloc(r->pool, sizeof(ngx_file_t)); | |
600 if (b->file == NULL) { | |
601 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
602 } | |
603 } | |
604 | |
605 rc = ngx_http_send_header(r); | |
606 | |
607 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
608 return rc; | |
609 } | |
610 | |
611 if (mp4) { | |
612 return ngx_http_output_filter(r, mp4->out); | |
613 } | |
614 | |
615 b->file_pos = 0; | |
616 b->file_last = of.size; | |
617 | |
618 b->in_file = b->file_last ? 1 : 0; | |
619 b->last_buf = 1; | |
620 b->last_in_chain = 1; | |
621 | |
622 b->file->fd = of.fd; | |
623 b->file->name = path; | |
624 b->file->log = log; | |
625 b->file->directio = of.is_directio; | |
626 | |
627 out.buf = b; | |
628 out.next = NULL; | |
629 | |
630 return ngx_http_output_filter(r, &out); | |
631 } | |
632 | |
633 | |
634 static ngx_int_t | |
635 ngx_http_mp4_process(ngx_http_mp4_file_t *mp4) | |
636 { | |
637 off_t start_offset, adjustment; | |
638 ngx_int_t rc; | |
639 ngx_uint_t i, j; | |
640 ngx_chain_t **prev; | |
641 ngx_http_mp4_trak_t *trak; | |
642 ngx_http_mp4_conf_t *conf; | |
643 | |
644 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
645 "mp4 start:%ui", mp4->start); | |
646 | |
647 conf = ngx_http_get_module_loc_conf(mp4->request, ngx_http_mp4_module); | |
648 | |
649 mp4->buffer_size = conf->buffer_size; | |
650 | |
651 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_atoms, mp4->end); | |
652 if (rc != NGX_OK) { | |
653 return rc; | |
654 } | |
655 | |
656 if (mp4->trak.nelts == 0) { | |
657 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
658 "no mp4 trak atoms were found in \"%s\"", | |
659 mp4->file.name.data); | |
660 return NGX_ERROR; | |
661 } | |
662 | |
663 if (mp4->mdat_atom.buf == NULL) { | |
664 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
665 "no mp4 mdat atom was found in \"%s\"", | |
666 mp4->file.name.data); | |
667 return NGX_ERROR; | |
668 } | |
669 | |
670 prev = &mp4->out; | |
671 | |
672 if (mp4->ftyp_atom.buf) { | |
673 *prev = &mp4->ftyp_atom; | |
674 prev = &mp4->ftyp_atom.next; | |
675 } | |
676 | |
677 *prev = &mp4->moov_atom; | |
678 prev = &mp4->moov_atom.next; | |
679 | |
680 if (mp4->mvhd_atom.buf) { | |
681 mp4->moov_size += mp4->mvhd_atom_buf.last - mp4->mvhd_atom_buf.pos; | |
682 *prev = &mp4->mvhd_atom; | |
683 prev = &mp4->mvhd_atom.next; | |
684 } | |
685 | |
686 start_offset = mp4->end; | |
687 trak = mp4->trak.elts; | |
688 | |
689 for (i = 0; i < mp4->trak.nelts; i++) { | |
690 | |
691 if (ngx_http_mp4_update_stts_atom(mp4, &trak[i]) != NGX_OK) { | |
692 return NGX_ERROR; | |
693 } | |
694 | |
695 if (ngx_http_mp4_update_stss_atom(mp4, &trak[i]) != NGX_OK) { | |
696 return NGX_ERROR; | |
697 } | |
698 | |
699 ngx_http_mp4_update_ctts_atom(mp4, &trak[i]); | |
700 | |
701 if (ngx_http_mp4_update_stsc_atom(mp4, &trak[i]) != NGX_OK) { | |
702 return NGX_ERROR; | |
703 } | |
704 | |
4585
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705 if (ngx_http_mp4_update_stsz_atom(mp4, &trak[i]) != NGX_OK) { |
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706 return NGX_ERROR; |
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707 } |
4085 | 708 |
4112 | 709 if (trak[i].out[NGX_HTTP_MP4_CO64_DATA].buf) { |
710 if (ngx_http_mp4_update_co64_atom(mp4, &trak[i]) != NGX_OK) { | |
711 return NGX_ERROR; | |
712 } | |
713 | |
714 } else { | |
715 if (ngx_http_mp4_update_stco_atom(mp4, &trak[i]) != NGX_OK) { | |
716 return NGX_ERROR; | |
717 } | |
4085 | 718 } |
719 | |
720 ngx_http_mp4_update_stbl_atom(mp4, &trak[i]); | |
721 ngx_http_mp4_update_minf_atom(mp4, &trak[i]); | |
722 trak[i].size += trak[i].mdhd_size; | |
723 trak[i].size += trak[i].hdlr_size; | |
724 ngx_http_mp4_update_mdia_atom(mp4, &trak[i]); | |
725 trak[i].size += trak[i].tkhd_size; | |
726 ngx_http_mp4_update_trak_atom(mp4, &trak[i]); | |
727 | |
728 mp4->moov_size += trak[i].size; | |
729 | |
730 if (start_offset > trak[i].start_offset) { | |
731 start_offset = trak[i].start_offset; | |
732 } | |
733 | |
734 *prev = &trak[i].out[NGX_HTTP_MP4_TRAK_ATOM]; | |
735 prev = &trak[i].out[NGX_HTTP_MP4_TRAK_ATOM].next; | |
736 | |
737 for (j = 0; j < NGX_HTTP_MP4_LAST_ATOM + 1; j++) { | |
738 if (trak[i].out[j].buf) { | |
739 *prev = &trak[i].out[j]; | |
740 prev = &trak[i].out[j].next; | |
741 } | |
742 } | |
743 } | |
744 | |
745 mp4->moov_size += 8; | |
746 | |
747 ngx_mp4_set_32value(mp4->moov_atom_header, mp4->moov_size); | |
748 ngx_mp4_set_atom_name(mp4->moov_atom_header, 'm', 'o', 'o', 'v'); | |
749 mp4->content_length += mp4->moov_size; | |
750 | |
751 *prev = &mp4->mdat_atom; | |
752 | |
753 adjustment = mp4->ftyp_size + mp4->moov_size | |
754 + ngx_http_mp4_update_mdat_atom(mp4, start_offset) | |
755 - start_offset; | |
756 | |
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757 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
4579 | 758 "mp4 adjustment:%O", adjustment); |
4085 | 759 |
760 for (i = 0; i < mp4->trak.nelts; i++) { | |
4112 | 761 if (trak[i].out[NGX_HTTP_MP4_CO64_DATA].buf) { |
762 ngx_http_mp4_adjust_co64_atom(mp4, &trak[i], adjustment); | |
763 } else { | |
764 ngx_http_mp4_adjust_stco_atom(mp4, &trak[i], (int32_t) adjustment); | |
765 } | |
4085 | 766 } |
767 | |
768 return NGX_OK; | |
769 } | |
770 | |
771 | |
772 typedef struct { | |
773 u_char size[4]; | |
774 u_char name[4]; | |
775 } ngx_mp4_atom_header_t; | |
776 | |
777 typedef struct { | |
778 u_char size[4]; | |
779 u_char name[4]; | |
780 u_char size64[8]; | |
781 } ngx_mp4_atom_header64_t; | |
782 | |
783 | |
784 static ngx_int_t | |
785 ngx_http_mp4_read_atom(ngx_http_mp4_file_t *mp4, | |
786 ngx_http_mp4_atom_handler_t *atom, uint64_t atom_data_size) | |
787 { | |
788 off_t end; | |
789 size_t atom_header_size; | |
790 u_char *atom_header, *atom_name; | |
791 uint64_t atom_size; | |
792 ngx_int_t rc; | |
793 ngx_uint_t n; | |
794 | |
795 end = mp4->offset + atom_data_size; | |
796 | |
797 while (mp4->offset < end) { | |
798 | |
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799 if (ngx_http_mp4_read(mp4, sizeof(uint32_t)) != NGX_OK) { |
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800 return NGX_ERROR; |
4085 | 801 } |
802 | |
803 atom_header = mp4->buffer_pos; | |
804 atom_size = ngx_mp4_get_32value(atom_header); | |
805 atom_header_size = sizeof(ngx_mp4_atom_header_t); | |
806 | |
807 if (atom_size == 0) { | |
808 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
809 "mp4 atom end"); | |
810 return NGX_OK; | |
811 } | |
812 | |
813 if (atom_size < sizeof(ngx_mp4_atom_header_t)) { | |
814 | |
815 if (atom_size == 1) { | |
816 | |
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817 if (ngx_http_mp4_read(mp4, sizeof(ngx_mp4_atom_header64_t)) |
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818 != NGX_OK) |
4085 | 819 { |
4585
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820 return NGX_ERROR; |
4085 | 821 } |
822 | |
823 /* 64-bit atom size */ | |
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824 atom_header = mp4->buffer_pos; |
4085 | 825 atom_size = ngx_mp4_get_64value(atom_header + 8); |
826 atom_header_size = sizeof(ngx_mp4_atom_header64_t); | |
827 | |
828 } else { | |
829 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
830 "\"%s\" mp4 atom is too small:%uL", | |
831 mp4->file.name.data, atom_size); | |
832 return NGX_ERROR; | |
833 } | |
834 } | |
835 | |
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836 if (ngx_http_mp4_read(mp4, sizeof(ngx_mp4_atom_header_t)) != NGX_OK) { |
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837 return NGX_ERROR; |
4085 | 838 } |
839 | |
4585
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840 atom_header = mp4->buffer_pos; |
4085 | 841 atom_name = atom_header + sizeof(uint32_t); |
842 | |
4088
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843 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
4085 | 844 "mp4 atom: %*s @%O:%uL", |
845 4, atom_name, mp4->offset, atom_size); | |
846 | |
4585
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847 if (atom_size > (uint64_t) (NGX_MAX_OFF_T_VALUE - mp4->offset) |
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848 || mp4->offset + (off_t) atom_size > end) |
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849 { |
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850 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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851 "\"%s\" mp4 atom too large:%uL", |
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852 mp4->file.name.data, atom_size); |
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853 return NGX_ERROR; |
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854 } |
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855 |
4085 | 856 for (n = 0; atom[n].name; n++) { |
857 | |
858 if (ngx_strncmp(atom_name, atom[n].name, 4) == 0) { | |
859 | |
860 ngx_mp4_atom_next(mp4, atom_header_size); | |
861 | |
862 rc = atom[n].handler(mp4, atom_size - atom_header_size); | |
863 if (rc != NGX_OK) { | |
864 return rc; | |
865 } | |
866 | |
867 goto next; | |
868 } | |
869 } | |
870 | |
871 ngx_mp4_atom_next(mp4, atom_size); | |
872 | |
873 next: | |
874 continue; | |
875 } | |
876 | |
877 return NGX_OK; | |
878 } | |
879 | |
880 | |
881 static ngx_int_t | |
4585
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882 ngx_http_mp4_read(ngx_http_mp4_file_t *mp4, size_t size) |
4085 | 883 { |
4585
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884 ssize_t n; |
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885 |
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886 if (mp4->buffer_pos + size <= mp4->buffer_end) { |
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887 return NGX_OK; |
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888 } |
4085 | 889 |
890 if (mp4->offset + (off_t) mp4->buffer_size > mp4->end) { | |
891 mp4->buffer_size = (size_t) (mp4->end - mp4->offset); | |
892 } | |
893 | |
4585
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894 if (mp4->buffer_size < size) { |
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895 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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896 "\"%s\" mp4 file truncated", mp4->file.name.data); |
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897 return NGX_ERROR; |
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898 } |
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899 |
4085 | 900 if (mp4->buffer == NULL) { |
901 mp4->buffer = ngx_palloc(mp4->request->pool, mp4->buffer_size); | |
902 if (mp4->buffer == NULL) { | |
903 return NGX_ERROR; | |
904 } | |
905 | |
906 mp4->buffer_start = mp4->buffer; | |
907 } | |
908 | |
909 n = ngx_read_file(&mp4->file, mp4->buffer_start, mp4->buffer_size, | |
910 mp4->offset); | |
911 | |
912 if (n == NGX_ERROR) { | |
913 return NGX_ERROR; | |
914 } | |
915 | |
4585
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916 if ((size_t) n != mp4->buffer_size) { |
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917 ngx_log_error(NGX_LOG_CRIT, mp4->file.log, 0, |
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918 ngx_read_file_n " read only %z of %z from \"%s\"", |
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919 n, mp4->buffer_size, mp4->file.name.data); |
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920 return NGX_ERROR; |
4085 | 921 } |
922 | |
923 mp4->buffer_pos = mp4->buffer_start; | |
4585
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924 mp4->buffer_end = mp4->buffer_start + mp4->buffer_size; |
4085 | 925 |
926 return NGX_OK; | |
927 } | |
928 | |
929 | |
930 static ngx_int_t | |
931 ngx_http_mp4_read_ftyp_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
932 { | |
933 u_char *ftyp_atom; | |
934 size_t atom_size; | |
935 ngx_buf_t *atom; | |
936 | |
937 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 ftyp atom"); | |
938 | |
4585
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939 if (atom_data_size > 1024 |
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940 || ngx_mp4_atom_data(mp4) + atom_data_size > mp4->buffer_end) |
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941 { |
4085 | 942 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
943 "\"%s\" mp4 ftyp atom is too large:%uL", | |
944 mp4->file.name.data, atom_data_size); | |
945 return NGX_ERROR; | |
946 } | |
947 | |
948 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
949 | |
950 ftyp_atom = ngx_palloc(mp4->request->pool, atom_size); | |
951 if (ftyp_atom == NULL) { | |
952 return NGX_ERROR; | |
953 } | |
954 | |
955 ngx_mp4_set_32value(ftyp_atom, atom_size); | |
956 ngx_mp4_set_atom_name(ftyp_atom, 'f', 't', 'y', 'p'); | |
957 | |
958 /* | |
959 * only moov atom content is guaranteed to be in mp4->buffer | |
960 * during sending response, so ftyp atom content should be copied | |
961 */ | |
962 ngx_memcpy(ftyp_atom + sizeof(ngx_mp4_atom_header_t), | |
963 ngx_mp4_atom_data(mp4), (size_t) atom_data_size); | |
964 | |
965 atom = &mp4->ftyp_atom_buf; | |
966 atom->temporary = 1; | |
967 atom->pos = ftyp_atom; | |
968 atom->last = ftyp_atom + atom_size; | |
969 | |
970 mp4->ftyp_atom.buf = atom; | |
971 mp4->ftyp_size = atom_size; | |
972 mp4->content_length = atom_size; | |
973 | |
974 ngx_mp4_atom_next(mp4, atom_data_size); | |
975 | |
976 return NGX_OK; | |
977 } | |
978 | |
979 | |
980 /* | |
981 * Small excess buffer to process atoms after moov atom, mp4->buffer_start | |
982 * will be set to this buffer part after moov atom processing. | |
983 */ | |
984 #define NGX_HTTP_MP4_MOOV_BUFFER_EXCESS (4 * 1024) | |
985 | |
986 static ngx_int_t | |
987 ngx_http_mp4_read_moov_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
988 { | |
989 ngx_int_t rc; | |
990 ngx_uint_t no_mdat; | |
991 ngx_buf_t *atom; | |
992 ngx_http_mp4_conf_t *conf; | |
993 | |
994 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 moov atom"); | |
995 | |
996 no_mdat = (mp4->mdat_atom.buf == NULL); | |
997 | |
998 if (no_mdat && mp4->start == 0) { | |
999 /* | |
1000 * send original file if moov atom resides before | |
1001 * mdat atom and client requests integral file | |
1002 */ | |
1003 return NGX_DECLINED; | |
1004 } | |
1005 | |
1006 conf = ngx_http_get_module_loc_conf(mp4->request, ngx_http_mp4_module); | |
1007 | |
1008 if (atom_data_size > mp4->buffer_size) { | |
1009 | |
4089
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1010 if (atom_data_size > conf->max_buffer_size) { |
4085 | 1011 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
1012 "\"%s\" mp4 moov atom is too large:%uL, " | |
4089
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1013 "you may want to increase mp4_max_buffer_size", |
4085 | 1014 mp4->file.name.data, atom_data_size); |
1015 return NGX_ERROR; | |
1016 } | |
1017 | |
1018 ngx_pfree(mp4->request->pool, mp4->buffer); | |
1019 mp4->buffer = NULL; | |
1020 mp4->buffer_pos = NULL; | |
1021 mp4->buffer_end = NULL; | |
1022 | |
1023 mp4->buffer_size = (size_t) atom_data_size | |
1024 + NGX_HTTP_MP4_MOOV_BUFFER_EXCESS * no_mdat; | |
1025 } | |
1026 | |
1027 mp4->trak.elts = &mp4->traks; | |
1028 mp4->trak.size = sizeof(ngx_http_mp4_trak_t); | |
1029 mp4->trak.nalloc = 2; | |
1030 mp4->trak.pool = mp4->request->pool; | |
1031 | |
1032 atom = &mp4->moov_atom_buf; | |
1033 atom->temporary = 1; | |
1034 atom->pos = mp4->moov_atom_header; | |
1035 atom->last = mp4->moov_atom_header + 8; | |
1036 | |
1037 mp4->moov_atom.buf = &mp4->moov_atom_buf; | |
1038 | |
1039 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_moov_atoms, atom_data_size); | |
1040 | |
1041 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 moov atom done"); | |
1042 | |
1043 if (no_mdat) { | |
1044 mp4->buffer_start = mp4->buffer_pos; | |
1045 mp4->buffer_size = NGX_HTTP_MP4_MOOV_BUFFER_EXCESS; | |
1046 | |
1047 } else { | |
1048 /* skip atoms after moov atom */ | |
1049 mp4->offset = mp4->end; | |
1050 } | |
1051 | |
1052 return rc; | |
1053 } | |
1054 | |
1055 | |
1056 static ngx_int_t | |
1057 ngx_http_mp4_read_mdat_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1058 { | |
1059 ngx_buf_t *data; | |
1060 | |
1061 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mdat atom"); | |
1062 | |
1063 data = &mp4->mdat_data_buf; | |
1064 data->file = &mp4->file; | |
1065 data->in_file = 1; | |
1066 data->last_buf = 1; | |
1067 data->last_in_chain = 1; | |
1068 data->file_last = mp4->offset + atom_data_size; | |
1069 | |
1070 mp4->mdat_atom.buf = &mp4->mdat_atom_buf; | |
1071 mp4->mdat_atom.next = &mp4->mdat_data; | |
1072 mp4->mdat_data.buf = data; | |
1073 | |
1074 if (mp4->trak.nelts) { | |
1075 /* skip atoms after mdat atom */ | |
1076 mp4->offset = mp4->end; | |
1077 | |
1078 } else { | |
1079 ngx_mp4_atom_next(mp4, atom_data_size); | |
1080 } | |
1081 | |
1082 return NGX_OK; | |
1083 } | |
1084 | |
1085 | |
1086 static size_t | |
1087 ngx_http_mp4_update_mdat_atom(ngx_http_mp4_file_t *mp4, off_t start_offset) | |
1088 { | |
1089 off_t atom_data_size; | |
1090 u_char *atom_header; | |
1091 uint32_t atom_header_size; | |
1092 uint64_t atom_size; | |
1093 ngx_buf_t *atom; | |
1094 | |
1095 atom_data_size = mp4->mdat_data.buf->file_last - start_offset; | |
1096 mp4->mdat_data.buf->file_pos = start_offset; | |
1097 | |
4088
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1098 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
4085 | 1099 "mdat new offset @%O:%O", start_offset, atom_data_size); |
1100 | |
1101 atom_header = mp4->mdat_atom_header; | |
1102 | |
4155
d9636bf3f159
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|
1103 if ((uint64_t) atom_data_size > 0xffffffff) { |
4085 | 1104 atom_size = 1; |
1105 atom_header_size = sizeof(ngx_mp4_atom_header64_t); | |
1106 ngx_mp4_set_64value(atom_header + sizeof(ngx_mp4_atom_header_t), | |
1107 sizeof(ngx_mp4_atom_header64_t) + atom_data_size); | |
1108 } else { | |
1109 atom_size = sizeof(ngx_mp4_atom_header_t) + atom_data_size; | |
1110 atom_header_size = sizeof(ngx_mp4_atom_header_t); | |
1111 } | |
1112 | |
4282
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diff
changeset
|
1113 mp4->content_length += atom_header_size + atom_data_size; |
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1114 |
4085 | 1115 ngx_mp4_set_32value(atom_header, atom_size); |
1116 ngx_mp4_set_atom_name(atom_header, 'm', 'd', 'a', 't'); | |
1117 | |
1118 atom = &mp4->mdat_atom_buf; | |
1119 atom->temporary = 1; | |
1120 atom->pos = atom_header; | |
1121 atom->last = atom_header + atom_header_size; | |
1122 | |
1123 return atom_header_size; | |
1124 } | |
1125 | |
1126 | |
1127 typedef struct { | |
1128 u_char size[4]; | |
1129 u_char name[4]; | |
1130 u_char version[1]; | |
1131 u_char flags[3]; | |
1132 u_char creation_time[4]; | |
1133 u_char modification_time[4]; | |
1134 u_char timescale[4]; | |
1135 u_char duration[4]; | |
1136 u_char rate[4]; | |
1137 u_char volume[2]; | |
1138 u_char reserved[10]; | |
1139 u_char matrix[36]; | |
1140 u_char preview_time[4]; | |
1141 u_char preview_duration[4]; | |
1142 u_char poster_time[4]; | |
1143 u_char selection_time[4]; | |
1144 u_char selection_duration[4]; | |
1145 u_char current_time[4]; | |
1146 u_char next_track_id[4]; | |
1147 } ngx_mp4_mvhd_atom_t; | |
1148 | |
1149 typedef struct { | |
1150 u_char size[4]; | |
1151 u_char name[4]; | |
1152 u_char version[1]; | |
1153 u_char flags[3]; | |
1154 u_char creation_time[8]; | |
1155 u_char modification_time[8]; | |
1156 u_char timescale[4]; | |
1157 u_char duration[8]; | |
1158 u_char rate[4]; | |
1159 u_char volume[2]; | |
1160 u_char reserved[10]; | |
1161 u_char matrix[36]; | |
1162 u_char preview_time[4]; | |
1163 u_char preview_duration[4]; | |
1164 u_char poster_time[4]; | |
1165 u_char selection_time[4]; | |
1166 u_char selection_duration[4]; | |
1167 u_char current_time[4]; | |
1168 u_char next_track_id[4]; | |
1169 } ngx_mp4_mvhd64_atom_t; | |
1170 | |
1171 | |
1172 static ngx_int_t | |
1173 ngx_http_mp4_read_mvhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1174 { | |
1175 u_char *atom_header; | |
1176 size_t atom_size; | |
1177 uint32_t timescale; | |
1178 uint64_t duration; | |
1179 ngx_buf_t *atom; | |
1180 ngx_mp4_mvhd_atom_t *mvhd_atom; | |
1181 ngx_mp4_mvhd64_atom_t *mvhd64_atom; | |
1182 | |
1183 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mvhd atom"); | |
1184 | |
1185 atom_header = ngx_mp4_atom_header(mp4); | |
1186 mvhd_atom = (ngx_mp4_mvhd_atom_t *) atom_header; | |
1187 mvhd64_atom = (ngx_mp4_mvhd64_atom_t *) atom_header; | |
1188 ngx_mp4_set_atom_name(atom_header, 'm', 'v', 'h', 'd'); | |
1189 | |
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1190 if (ngx_mp4_atom_data_size(ngx_mp4_mvhd_atom_t) > atom_data_size) { |
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1191 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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|
1192 "\"%s\" mp4 mvhd atom too small", mp4->file.name.data); |
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1193 return NGX_ERROR; |
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1194 } |
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1195 |
4085 | 1196 if (mvhd_atom->version[0] == 0) { |
1197 /* version 0: 32-bit duration */ | |
1198 timescale = ngx_mp4_get_32value(mvhd_atom->timescale); | |
1199 duration = ngx_mp4_get_32value(mvhd_atom->duration); | |
1200 | |
1201 } else { | |
1202 /* version 1: 64-bit duration */ | |
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1203 |
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1204 if (ngx_mp4_atom_data_size(ngx_mp4_mvhd64_atom_t) > atom_data_size) { |
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1205 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1206 "\"%s\" mp4 mvhd atom too small", |
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1207 mp4->file.name.data); |
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1208 return NGX_ERROR; |
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|
1209 } |
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1210 |
4085 | 1211 timescale = ngx_mp4_get_32value(mvhd64_atom->timescale); |
1212 duration = ngx_mp4_get_64value(mvhd64_atom->duration); | |
1213 } | |
1214 | |
1215 mp4->timescale = timescale; | |
1216 | |
1217 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
1218 "mvhd timescale:%uD, duration:%uL, time:%.3fs", | |
1219 timescale, duration, (double) duration / timescale); | |
1220 | |
1221 duration -= (uint64_t) mp4->start * timescale / 1000; | |
1222 | |
1223 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
1224 "mvhd new duration:%uL, time:%.3fs", | |
1225 duration, (double) duration / timescale); | |
1226 | |
1227 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
1228 ngx_mp4_set_32value(mvhd_atom->size, atom_size); | |
1229 | |
1230 if (mvhd_atom->version[0] == 0) { | |
1231 ngx_mp4_set_32value(mvhd_atom->duration, duration); | |
1232 | |
1233 } else { | |
1234 ngx_mp4_set_64value(mvhd64_atom->duration, duration); | |
1235 } | |
1236 | |
1237 atom = &mp4->mvhd_atom_buf; | |
1238 atom->temporary = 1; | |
1239 atom->pos = atom_header; | |
1240 atom->last = atom_header + atom_size; | |
1241 | |
1242 mp4->mvhd_atom.buf = atom; | |
1243 | |
1244 ngx_mp4_atom_next(mp4, atom_data_size); | |
1245 | |
1246 return NGX_OK; | |
1247 } | |
1248 | |
1249 | |
1250 static ngx_int_t | |
1251 ngx_http_mp4_read_trak_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1252 { | |
4099
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1253 u_char *atom_header, *atom_end; |
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1254 off_t atom_file_end; |
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1255 ngx_int_t rc; |
4085 | 1256 ngx_buf_t *atom; |
1257 ngx_http_mp4_trak_t *trak; | |
1258 | |
1259 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 trak atom"); | |
1260 | |
1261 trak = ngx_array_push(&mp4->trak); | |
1262 if (trak == NULL) { | |
1263 return NGX_ERROR; | |
1264 } | |
1265 | |
1266 ngx_memzero(trak, sizeof(ngx_http_mp4_trak_t)); | |
1267 | |
1268 atom_header = ngx_mp4_atom_header(mp4); | |
1269 ngx_mp4_set_atom_name(atom_header, 't', 'r', 'a', 'k'); | |
1270 | |
1271 atom = &trak->trak_atom_buf; | |
1272 atom->temporary = 1; | |
1273 atom->pos = atom_header; | |
1274 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
1275 | |
1276 trak->out[NGX_HTTP_MP4_TRAK_ATOM].buf = atom; | |
1277 | |
4099
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1278 atom_end = mp4->buffer_pos + atom_data_size; |
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1279 atom_file_end = mp4->offset + atom_data_size; |
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1280 |
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1281 rc = ngx_http_mp4_read_atom(mp4, ngx_http_mp4_trak_atoms, atom_data_size); |
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1282 |
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1283 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
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1284 "mp4 trak atom: %i", rc); |
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1285 |
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1286 if (rc == NGX_DECLINED) { |
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1287 /* skip this trak */ |
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|
1288 ngx_memzero(trak, sizeof(ngx_http_mp4_trak_t)); |
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1289 mp4->trak.nelts--; |
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1290 mp4->buffer_pos = atom_end; |
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1291 mp4->offset = atom_file_end; |
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1292 return NGX_OK; |
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|
1293 } |
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1294 |
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1295 return rc; |
4085 | 1296 } |
1297 | |
1298 | |
1299 static void | |
1300 ngx_http_mp4_update_trak_atom(ngx_http_mp4_file_t *mp4, | |
1301 ngx_http_mp4_trak_t *trak) | |
1302 { | |
1303 ngx_buf_t *atom; | |
1304 | |
1305 trak->size += sizeof(ngx_mp4_atom_header_t); | |
1306 atom = &trak->trak_atom_buf; | |
1307 ngx_mp4_set_32value(atom->pos, trak->size); | |
1308 } | |
1309 | |
1310 | |
1311 static ngx_int_t | |
1312 ngx_http_mp4_read_cmov_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1313 { | |
1314 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
1315 "\"%s\" mp4 compressed moov atom (cmov) is not supported", | |
1316 mp4->file.name.data); | |
1317 | |
1318 return NGX_ERROR; | |
1319 } | |
1320 | |
1321 | |
1322 typedef struct { | |
1323 u_char size[4]; | |
1324 u_char name[4]; | |
1325 u_char version[1]; | |
1326 u_char flags[3]; | |
1327 u_char creation_time[4]; | |
1328 u_char modification_time[4]; | |
1329 u_char track_id[4]; | |
1330 u_char reserved1[4]; | |
1331 u_char duration[4]; | |
1332 u_char reserved2[8]; | |
1333 u_char layer[2]; | |
1334 u_char group[2]; | |
1335 u_char volume[2]; | |
1336 u_char reverved3[2]; | |
1337 u_char matrix[36]; | |
1338 u_char width[4]; | |
1339 u_char heigth[4]; | |
1340 } ngx_mp4_tkhd_atom_t; | |
1341 | |
1342 typedef struct { | |
1343 u_char size[4]; | |
1344 u_char name[4]; | |
1345 u_char version[1]; | |
1346 u_char flags[3]; | |
1347 u_char creation_time[8]; | |
1348 u_char modification_time[8]; | |
1349 u_char track_id[4]; | |
1350 u_char reserved1[4]; | |
1351 u_char duration[8]; | |
1352 u_char reserved2[8]; | |
1353 u_char layer[2]; | |
1354 u_char group[2]; | |
1355 u_char volume[2]; | |
1356 u_char reverved3[2]; | |
1357 u_char matrix[36]; | |
1358 u_char width[4]; | |
1359 u_char heigth[4]; | |
1360 } ngx_mp4_tkhd64_atom_t; | |
1361 | |
1362 | |
1363 static ngx_int_t | |
1364 ngx_http_mp4_read_tkhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1365 { | |
1366 u_char *atom_header; | |
1367 size_t atom_size; | |
1368 uint64_t duration; | |
1369 ngx_buf_t *atom; | |
1370 ngx_http_mp4_trak_t *trak; | |
1371 ngx_mp4_tkhd_atom_t *tkhd_atom; | |
1372 ngx_mp4_tkhd64_atom_t *tkhd64_atom; | |
1373 | |
1374 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 tkhd atom"); | |
1375 | |
1376 atom_header = ngx_mp4_atom_header(mp4); | |
1377 tkhd_atom = (ngx_mp4_tkhd_atom_t *) atom_header; | |
1378 tkhd64_atom = (ngx_mp4_tkhd64_atom_t *) atom_header; | |
1379 ngx_mp4_set_atom_name(tkhd_atom, 't', 'k', 'h', 'd'); | |
1380 | |
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1381 if (ngx_mp4_atom_data_size(ngx_mp4_tkhd_atom_t) > atom_data_size) { |
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1382 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1383 "\"%s\" mp4 tkhd atom too small", mp4->file.name.data); |
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1384 return NGX_ERROR; |
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1385 } |
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1386 |
4085 | 1387 if (tkhd_atom->version[0] == 0) { |
1388 /* version 0: 32-bit duration */ | |
1389 duration = ngx_mp4_get_32value(tkhd_atom->duration); | |
1390 | |
1391 } else { | |
1392 /* version 1: 64-bit duration */ | |
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1393 |
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1394 if (ngx_mp4_atom_data_size(ngx_mp4_tkhd64_atom_t) > atom_data_size) { |
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1395 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1396 "\"%s\" mp4 tkhd atom too small", |
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1397 mp4->file.name.data); |
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1398 return NGX_ERROR; |
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1399 } |
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1400 |
4085 | 1401 duration = ngx_mp4_get_64value(tkhd64_atom->duration); |
1402 } | |
1403 | |
1404 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
1405 "tkhd duration:%uL, time:%.3fs", | |
1406 duration, (double) duration / mp4->timescale); | |
1407 | |
1408 duration -= (uint64_t) mp4->start * mp4->timescale / 1000; | |
1409 | |
1410 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
1411 "tkhd new duration:%uL, time:%.3fs", | |
1412 duration, (double) duration / mp4->timescale); | |
1413 | |
1414 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
1415 | |
1416 trak = ngx_mp4_last_trak(mp4); | |
1417 trak->tkhd_size = atom_size; | |
1418 | |
1419 ngx_mp4_set_32value(tkhd_atom->size, atom_size); | |
1420 | |
1421 if (tkhd_atom->version[0] == 0) { | |
1422 ngx_mp4_set_32value(tkhd_atom->duration, duration); | |
1423 | |
1424 } else { | |
1425 ngx_mp4_set_64value(tkhd64_atom->duration, duration); | |
1426 } | |
1427 | |
1428 atom = &trak->tkhd_atom_buf; | |
1429 atom->temporary = 1; | |
1430 atom->pos = atom_header; | |
1431 atom->last = atom_header + atom_size; | |
1432 | |
1433 trak->out[NGX_HTTP_MP4_TKHD_ATOM].buf = atom; | |
1434 | |
1435 ngx_mp4_atom_next(mp4, atom_data_size); | |
1436 | |
1437 return NGX_OK; | |
1438 } | |
1439 | |
1440 | |
1441 static ngx_int_t | |
1442 ngx_http_mp4_read_mdia_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1443 { | |
1444 u_char *atom_header; | |
1445 ngx_buf_t *atom; | |
1446 ngx_http_mp4_trak_t *trak; | |
1447 | |
1448 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process mdia atom"); | |
1449 | |
1450 atom_header = ngx_mp4_atom_header(mp4); | |
1451 ngx_mp4_set_atom_name(atom_header, 'm', 'd', 'i', 'a'); | |
1452 | |
1453 trak = ngx_mp4_last_trak(mp4); | |
1454 | |
1455 atom = &trak->mdia_atom_buf; | |
1456 atom->temporary = 1; | |
1457 atom->pos = atom_header; | |
1458 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
1459 | |
1460 trak->out[NGX_HTTP_MP4_MDIA_ATOM].buf = atom; | |
1461 | |
1462 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_mdia_atoms, atom_data_size); | |
1463 } | |
1464 | |
1465 | |
1466 static void | |
1467 ngx_http_mp4_update_mdia_atom(ngx_http_mp4_file_t *mp4, | |
1468 ngx_http_mp4_trak_t *trak) | |
1469 { | |
1470 ngx_buf_t *atom; | |
1471 | |
1472 trak->size += sizeof(ngx_mp4_atom_header_t); | |
1473 atom = &trak->mdia_atom_buf; | |
1474 ngx_mp4_set_32value(atom->pos, trak->size); | |
1475 } | |
1476 | |
1477 | |
1478 typedef struct { | |
1479 u_char size[4]; | |
1480 u_char name[4]; | |
1481 u_char version[1]; | |
1482 u_char flags[3]; | |
1483 u_char creation_time[4]; | |
1484 u_char modification_time[4]; | |
1485 u_char timescale[4]; | |
1486 u_char duration[4]; | |
1487 u_char language[2]; | |
1488 u_char quality[2]; | |
1489 } ngx_mp4_mdhd_atom_t; | |
1490 | |
1491 typedef struct { | |
1492 u_char size[4]; | |
1493 u_char name[4]; | |
1494 u_char version[1]; | |
1495 u_char flags[3]; | |
1496 u_char creation_time[8]; | |
1497 u_char modification_time[8]; | |
1498 u_char timescale[4]; | |
1499 u_char duration[8]; | |
1500 u_char language[2]; | |
1501 u_char quality[2]; | |
1502 } ngx_mp4_mdhd64_atom_t; | |
1503 | |
1504 | |
1505 static ngx_int_t | |
1506 ngx_http_mp4_read_mdhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1507 { | |
1508 u_char *atom_header; | |
1509 size_t atom_size; | |
1510 uint32_t timescale; | |
1511 uint64_t duration; | |
1512 ngx_buf_t *atom; | |
1513 ngx_http_mp4_trak_t *trak; | |
1514 ngx_mp4_mdhd_atom_t *mdhd_atom; | |
1515 ngx_mp4_mdhd64_atom_t *mdhd64_atom; | |
1516 | |
1517 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 mdhd atom"); | |
1518 | |
1519 atom_header = ngx_mp4_atom_header(mp4); | |
1520 mdhd_atom = (ngx_mp4_mdhd_atom_t *) atom_header; | |
1521 mdhd64_atom = (ngx_mp4_mdhd64_atom_t *) atom_header; | |
1522 ngx_mp4_set_atom_name(mdhd_atom, 'm', 'd', 'h', 'd'); | |
1523 | |
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1524 if (ngx_mp4_atom_data_size(ngx_mp4_mdhd_atom_t) > atom_data_size) { |
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1525 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1526 "\"%s\" mp4 mdhd atom too small", mp4->file.name.data); |
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1527 return NGX_ERROR; |
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1528 } |
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1529 |
4085 | 1530 if (mdhd_atom->version[0] == 0) { |
1531 /* version 0: everything is 32-bit */ | |
1532 timescale = ngx_mp4_get_32value(mdhd_atom->timescale); | |
1533 duration = ngx_mp4_get_32value(mdhd_atom->duration); | |
1534 | |
1535 } else { | |
1536 /* version 1: 64-bit duration and 32-bit timescale */ | |
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1537 |
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1538 if (ngx_mp4_atom_data_size(ngx_mp4_mdhd64_atom_t) > atom_data_size) { |
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1539 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1540 "\"%s\" mp4 mdhd atom too small", |
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1541 mp4->file.name.data); |
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1542 return NGX_ERROR; |
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1543 } |
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1544 |
4085 | 1545 timescale = ngx_mp4_get_32value(mdhd64_atom->timescale); |
1546 duration = ngx_mp4_get_64value(mdhd64_atom->duration); | |
1547 } | |
1548 | |
1549 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
1550 "mdhd timescale:%uD, duration:%uL, time:%.3fs", | |
1551 timescale, duration, (double) duration / timescale); | |
1552 | |
1553 duration -= (uint64_t) mp4->start * timescale / 1000; | |
1554 | |
1555 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
1556 "mdhd new duration:%uL, time:%.3fs", | |
1557 duration, (double) duration / timescale); | |
1558 | |
1559 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
1560 | |
1561 trak = ngx_mp4_last_trak(mp4); | |
1562 trak->mdhd_size = atom_size; | |
1563 trak->timescale = timescale; | |
1564 | |
1565 ngx_mp4_set_32value(mdhd_atom->size, atom_size); | |
1566 | |
1567 if (mdhd_atom->version[0] == 0) { | |
1568 ngx_mp4_set_32value(mdhd_atom->duration, duration); | |
1569 | |
1570 } else { | |
1571 ngx_mp4_set_64value(mdhd64_atom->duration, duration); | |
1572 } | |
1573 | |
1574 atom = &trak->mdhd_atom_buf; | |
1575 atom->temporary = 1; | |
1576 atom->pos = atom_header; | |
1577 atom->last = atom_header + atom_size; | |
1578 | |
1579 trak->out[NGX_HTTP_MP4_MDHD_ATOM].buf = atom; | |
1580 | |
1581 ngx_mp4_atom_next(mp4, atom_data_size); | |
1582 | |
1583 return NGX_OK; | |
1584 } | |
1585 | |
1586 | |
1587 static ngx_int_t | |
1588 ngx_http_mp4_read_hdlr_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1589 { | |
1590 u_char *atom_header; | |
1591 size_t atom_size; | |
1592 ngx_buf_t *atom; | |
1593 ngx_http_mp4_trak_t *trak; | |
1594 | |
1595 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 hdlr atom"); | |
1596 | |
1597 atom_header = ngx_mp4_atom_header(mp4); | |
1598 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
1599 ngx_mp4_set_32value(atom_header, atom_size); | |
1600 ngx_mp4_set_atom_name(atom_header, 'h', 'd', 'l', 'r'); | |
1601 | |
1602 trak = ngx_mp4_last_trak(mp4); | |
1603 | |
1604 atom = &trak->hdlr_atom_buf; | |
1605 atom->temporary = 1; | |
1606 atom->pos = atom_header; | |
1607 atom->last = atom_header + atom_size; | |
1608 | |
1609 trak->hdlr_size = atom_size; | |
1610 trak->out[NGX_HTTP_MP4_HDLR_ATOM].buf = atom; | |
1611 | |
1612 ngx_mp4_atom_next(mp4, atom_data_size); | |
1613 | |
1614 return NGX_OK; | |
1615 } | |
1616 | |
1617 | |
1618 static ngx_int_t | |
1619 ngx_http_mp4_read_minf_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1620 { | |
1621 u_char *atom_header; | |
1622 ngx_buf_t *atom; | |
1623 ngx_http_mp4_trak_t *trak; | |
1624 | |
1625 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process minf atom"); | |
1626 | |
1627 atom_header = ngx_mp4_atom_header(mp4); | |
1628 ngx_mp4_set_atom_name(atom_header, 'm', 'i', 'n', 'f'); | |
1629 | |
1630 trak = ngx_mp4_last_trak(mp4); | |
1631 | |
1632 atom = &trak->minf_atom_buf; | |
1633 atom->temporary = 1; | |
1634 atom->pos = atom_header; | |
1635 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
1636 | |
1637 trak->out[NGX_HTTP_MP4_MINF_ATOM].buf = atom; | |
1638 | |
1639 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_minf_atoms, atom_data_size); | |
1640 } | |
1641 | |
1642 | |
1643 static void | |
1644 ngx_http_mp4_update_minf_atom(ngx_http_mp4_file_t *mp4, | |
1645 ngx_http_mp4_trak_t *trak) | |
1646 { | |
1647 ngx_buf_t *atom; | |
1648 | |
1649 trak->size += sizeof(ngx_mp4_atom_header_t) | |
1650 + trak->vmhd_size | |
1651 + trak->smhd_size | |
1652 + trak->dinf_size; | |
1653 atom = &trak->minf_atom_buf; | |
1654 ngx_mp4_set_32value(atom->pos, trak->size); | |
1655 } | |
1656 | |
1657 | |
1658 static ngx_int_t | |
1659 ngx_http_mp4_read_vmhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1660 { | |
1661 u_char *atom_header; | |
1662 size_t atom_size; | |
1663 ngx_buf_t *atom; | |
1664 ngx_http_mp4_trak_t *trak; | |
1665 | |
1666 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 vmhd atom"); | |
1667 | |
1668 atom_header = ngx_mp4_atom_header(mp4); | |
1669 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
1670 ngx_mp4_set_32value(atom_header, atom_size); | |
1671 ngx_mp4_set_atom_name(atom_header, 'v', 'm', 'h', 'd'); | |
1672 | |
1673 trak = ngx_mp4_last_trak(mp4); | |
1674 | |
1675 atom = &trak->vmhd_atom_buf; | |
1676 atom->temporary = 1; | |
1677 atom->pos = atom_header; | |
1678 atom->last = atom_header + atom_size; | |
1679 | |
1680 trak->vmhd_size += atom_size; | |
1681 trak->out[NGX_HTTP_MP4_VMHD_ATOM].buf = atom; | |
1682 | |
1683 ngx_mp4_atom_next(mp4, atom_data_size); | |
1684 | |
1685 return NGX_OK; | |
1686 } | |
1687 | |
1688 | |
1689 static ngx_int_t | |
1690 ngx_http_mp4_read_smhd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1691 { | |
1692 u_char *atom_header; | |
1693 size_t atom_size; | |
1694 ngx_buf_t *atom; | |
1695 ngx_http_mp4_trak_t *trak; | |
1696 | |
1697 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 smhd atom"); | |
1698 | |
1699 atom_header = ngx_mp4_atom_header(mp4); | |
1700 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
1701 ngx_mp4_set_32value(atom_header, atom_size); | |
1702 ngx_mp4_set_atom_name(atom_header, 's', 'm', 'h', 'd'); | |
1703 | |
1704 trak = ngx_mp4_last_trak(mp4); | |
1705 | |
1706 atom = &trak->smhd_atom_buf; | |
1707 atom->temporary = 1; | |
1708 atom->pos = atom_header; | |
1709 atom->last = atom_header + atom_size; | |
1710 | |
1711 trak->vmhd_size += atom_size; | |
1712 trak->out[NGX_HTTP_MP4_SMHD_ATOM].buf = atom; | |
1713 | |
1714 ngx_mp4_atom_next(mp4, atom_data_size); | |
1715 | |
1716 return NGX_OK; | |
1717 } | |
1718 | |
1719 | |
1720 static ngx_int_t | |
1721 ngx_http_mp4_read_dinf_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1722 { | |
1723 u_char *atom_header; | |
1724 size_t atom_size; | |
1725 ngx_buf_t *atom; | |
1726 ngx_http_mp4_trak_t *trak; | |
1727 | |
1728 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 dinf atom"); | |
1729 | |
1730 atom_header = ngx_mp4_atom_header(mp4); | |
1731 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
1732 ngx_mp4_set_32value(atom_header, atom_size); | |
1733 ngx_mp4_set_atom_name(atom_header, 'd', 'i', 'n', 'f'); | |
1734 | |
1735 trak = ngx_mp4_last_trak(mp4); | |
1736 | |
1737 atom = &trak->dinf_atom_buf; | |
1738 atom->temporary = 1; | |
1739 atom->pos = atom_header; | |
1740 atom->last = atom_header + atom_size; | |
1741 | |
1742 trak->dinf_size += atom_size; | |
1743 trak->out[NGX_HTTP_MP4_DINF_ATOM].buf = atom; | |
1744 | |
1745 ngx_mp4_atom_next(mp4, atom_data_size); | |
1746 | |
1747 return NGX_OK; | |
1748 } | |
1749 | |
1750 | |
1751 static ngx_int_t | |
1752 ngx_http_mp4_read_stbl_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1753 { | |
1754 u_char *atom_header; | |
1755 ngx_buf_t *atom; | |
1756 ngx_http_mp4_trak_t *trak; | |
1757 | |
1758 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "process stbl atom"); | |
1759 | |
1760 atom_header = ngx_mp4_atom_header(mp4); | |
1761 ngx_mp4_set_atom_name(atom_header, 's', 't', 'b', 'l'); | |
1762 | |
1763 trak = ngx_mp4_last_trak(mp4); | |
1764 | |
1765 atom = &trak->stbl_atom_buf; | |
1766 atom->temporary = 1; | |
1767 atom->pos = atom_header; | |
1768 atom->last = atom_header + sizeof(ngx_mp4_atom_header_t); | |
1769 | |
1770 trak->out[NGX_HTTP_MP4_STBL_ATOM].buf = atom; | |
1771 | |
1772 return ngx_http_mp4_read_atom(mp4, ngx_http_mp4_stbl_atoms, atom_data_size); | |
1773 } | |
1774 | |
1775 | |
1776 static void | |
1777 ngx_http_mp4_update_stbl_atom(ngx_http_mp4_file_t *mp4, | |
1778 ngx_http_mp4_trak_t *trak) | |
1779 { | |
1780 ngx_buf_t *atom; | |
1781 | |
1782 trak->size += sizeof(ngx_mp4_atom_header_t); | |
1783 atom = &trak->stbl_atom_buf; | |
1784 ngx_mp4_set_32value(atom->pos, trak->size); | |
1785 } | |
1786 | |
1787 | |
1788 typedef struct { | |
1789 u_char size[4]; | |
1790 u_char name[4]; | |
1791 u_char version[1]; | |
1792 u_char flags[3]; | |
1793 u_char entries[4]; | |
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1794 |
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1795 u_char media_size[4]; |
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1796 u_char media_name[4]; |
4085 | 1797 } ngx_mp4_stsd_atom_t; |
1798 | |
1799 | |
1800 static ngx_int_t | |
1801 ngx_http_mp4_read_stsd_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1802 { | |
1803 u_char *atom_header, *atom_table; | |
1804 size_t atom_size; | |
1805 ngx_buf_t *atom; | |
1806 ngx_mp4_stsd_atom_t *stsd_atom; | |
1807 ngx_http_mp4_trak_t *trak; | |
1808 | |
1809 /* sample description atom */ | |
1810 | |
1811 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsd atom"); | |
1812 | |
1813 atom_header = ngx_mp4_atom_header(mp4); | |
1814 stsd_atom = (ngx_mp4_stsd_atom_t *) atom_header; | |
1815 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; | |
1816 atom_table = atom_header + atom_size; | |
1817 ngx_mp4_set_32value(stsd_atom->size, atom_size); | |
1818 ngx_mp4_set_atom_name(stsd_atom, 's', 't', 's', 'd'); | |
1819 | |
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1820 if (ngx_mp4_atom_data_size(ngx_mp4_stsd_atom_t) > atom_data_size) { |
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1821 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1822 "\"%s\" mp4 stsd atom too small", mp4->file.name.data); |
4099
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1823 return NGX_ERROR; |
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1824 } |
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1825 |
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1826 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
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1827 "stsd entries:%uD, media:%*s", |
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1828 ngx_mp4_get_32value(stsd_atom->entries), |
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1829 4, stsd_atom->media_name); |
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1830 |
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1831 /* supported media format: "avc1" (H.264) and "mp4a" (MPEG-4/AAC) */ |
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1832 |
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1833 if (ngx_strncmp(stsd_atom->media_name, "avc1", 4) != 0 |
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1834 && ngx_strncmp(stsd_atom->media_name, "mp4a", 4) != 0) |
4085 | 1835 { |
4099
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1836 return NGX_DECLINED; |
4085 | 1837 } |
1838 | |
1839 trak = ngx_mp4_last_trak(mp4); | |
1840 | |
1841 atom = &trak->stsd_atom_buf; | |
1842 atom->temporary = 1; | |
1843 atom->pos = atom_header; | |
1844 atom->last = atom_table; | |
1845 | |
1846 trak->out[NGX_HTTP_MP4_STSD_ATOM].buf = atom; | |
1847 trak->size += atom_size; | |
1848 | |
1849 ngx_mp4_atom_next(mp4, atom_data_size); | |
1850 | |
1851 return NGX_OK; | |
1852 } | |
1853 | |
1854 | |
1855 typedef struct { | |
1856 u_char size[4]; | |
1857 u_char name[4]; | |
1858 u_char version[1]; | |
1859 u_char flags[3]; | |
1860 u_char entries[4]; | |
1861 } ngx_mp4_stts_atom_t; | |
1862 | |
1863 typedef struct { | |
1864 u_char count[4]; | |
1865 u_char duration[4]; | |
1866 } ngx_mp4_stts_entry_t; | |
1867 | |
1868 | |
1869 static ngx_int_t | |
1870 ngx_http_mp4_read_stts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
1871 { | |
1872 u_char *atom_header, *atom_table, *atom_end; | |
1873 uint32_t entries; | |
1874 ngx_buf_t *atom, *data; | |
1875 ngx_mp4_stts_atom_t *stts_atom; | |
1876 ngx_http_mp4_trak_t *trak; | |
1877 | |
1878 /* time-to-sample atom */ | |
1879 | |
1880 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stts atom"); | |
1881 | |
1882 atom_header = ngx_mp4_atom_header(mp4); | |
1883 stts_atom = (ngx_mp4_stts_atom_t *) atom_header; | |
1884 ngx_mp4_set_atom_name(stts_atom, 's', 't', 't', 's'); | |
1885 | |
4585
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1886 if (ngx_mp4_atom_data_size(ngx_mp4_stts_atom_t) > atom_data_size) { |
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1887 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1888 "\"%s\" mp4 stts atom too small", mp4->file.name.data); |
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1889 return NGX_ERROR; |
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1890 } |
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1891 |
4085 | 1892 entries = ngx_mp4_get_32value(stts_atom->entries); |
1893 | |
1894 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
4096 | 1895 "mp4 time-to-sample entries:%uD", entries); |
4085 | 1896 |
4585
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1897 if (ngx_mp4_atom_data_size(ngx_mp4_stts_atom_t) |
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1898 + entries * sizeof(ngx_mp4_stts_entry_t) > atom_data_size) |
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1899 { |
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1900 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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1901 "\"%s\" mp4 stts atom too small", mp4->file.name.data); |
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1902 return NGX_ERROR; |
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1903 } |
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1904 |
4085 | 1905 atom_table = atom_header + sizeof(ngx_mp4_stts_atom_t); |
1906 atom_end = atom_table + entries * sizeof(ngx_mp4_stts_entry_t); | |
1907 | |
1908 trak = ngx_mp4_last_trak(mp4); | |
1909 trak->time_to_sample_entries = entries; | |
1910 | |
1911 atom = &trak->stts_atom_buf; | |
1912 atom->temporary = 1; | |
1913 atom->pos = atom_header; | |
1914 atom->last = atom_table; | |
1915 | |
1916 data = &trak->stts_data_buf; | |
1917 data->temporary = 1; | |
1918 data->pos = atom_table; | |
1919 data->last = atom_end; | |
1920 | |
1921 trak->out[NGX_HTTP_MP4_STTS_ATOM].buf = atom; | |
1922 trak->out[NGX_HTTP_MP4_STTS_DATA].buf = data; | |
1923 | |
1924 ngx_mp4_atom_next(mp4, atom_data_size); | |
1925 | |
1926 return NGX_OK; | |
1927 } | |
1928 | |
1929 | |
1930 static ngx_int_t | |
1931 ngx_http_mp4_update_stts_atom(ngx_http_mp4_file_t *mp4, | |
1932 ngx_http_mp4_trak_t *trak) | |
1933 { | |
1934 size_t atom_size; | |
1935 uint32_t entries, count, duration; | |
1936 uint64_t start_time; | |
1937 ngx_buf_t *atom, *data; | |
1938 ngx_uint_t start_sample; | |
1939 ngx_mp4_stts_atom_t *stts_atom; | |
1940 ngx_mp4_stts_entry_t *entry, *end; | |
1941 | |
1942 /* | |
1943 * mdia.minf.stbl.stts updating requires trak->timescale | |
1944 * from mdia.mdhd atom which may reside after mdia.minf | |
1945 */ | |
1946 | |
1947 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
1948 "mp4 stts atom update"); | |
1949 | |
1950 data = trak->out[NGX_HTTP_MP4_STTS_DATA].buf; | |
1951 | |
1952 if (data == NULL) { | |
1953 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
1954 "no mp4 stts atoms were found in \"%s\"", | |
1955 mp4->file.name.data); | |
1956 return NGX_ERROR; | |
1957 } | |
1958 | |
1959 entries = trak->time_to_sample_entries; | |
4189
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1960 start_time = (uint64_t) mp4->start * trak->timescale / 1000; |
4085 | 1961 |
1962 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
4096 | 1963 "time-to-sample start_time:%uL", start_time); |
4085 | 1964 |
1965 start_sample = 0; | |
1966 entry = (ngx_mp4_stts_entry_t *) data->pos; | |
1967 end = (ngx_mp4_stts_entry_t *) data->last; | |
1968 | |
1969 while (entry < end) { | |
1970 count = ngx_mp4_get_32value(entry->count); | |
1971 duration = ngx_mp4_get_32value(entry->duration); | |
1972 | |
1973 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
1974 "count:%uD, duration:%uD", count, duration); | |
1975 | |
4306 | 1976 if (start_time < (uint64_t) count * duration) { |
4085 | 1977 start_sample += (ngx_uint_t) (start_time / duration); |
4578 | 1978 count -= (uint32_t) (start_time / duration); |
4085 | 1979 ngx_mp4_set_32value(entry->count, count); |
1980 goto found; | |
1981 } | |
1982 | |
1983 start_sample += count; | |
1984 start_time -= count * duration; | |
1985 entries--; | |
1986 entry++; | |
1987 } | |
1988 | |
1989 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
4094 | 1990 "start time is out mp4 stts samples in \"%s\"", |
4085 | 1991 mp4->file.name.data); |
1992 | |
1993 return NGX_ERROR; | |
1994 | |
1995 found: | |
1996 | |
1997 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
1998 "start_sample:%ui, new count:%uD", start_sample, count); | |
1999 | |
2000 trak->start_sample = start_sample; | |
2001 | |
2002 data->pos = (u_char *) entry; | |
2003 atom_size = sizeof(ngx_mp4_stts_atom_t) + (data->last - data->pos); | |
2004 trak->size += atom_size; | |
2005 | |
2006 atom = trak->out[NGX_HTTP_MP4_STTS_ATOM].buf; | |
2007 stts_atom = (ngx_mp4_stts_atom_t *) atom->pos; | |
2008 ngx_mp4_set_32value(stts_atom->size, atom_size); | |
2009 ngx_mp4_set_32value(stts_atom->entries, entries); | |
2010 | |
2011 return NGX_OK; | |
2012 } | |
2013 | |
2014 | |
2015 typedef struct { | |
2016 u_char size[4]; | |
2017 u_char name[4]; | |
2018 u_char version[1]; | |
2019 u_char flags[3]; | |
2020 u_char entries[4]; | |
2021 } ngx_http_mp4_stss_atom_t; | |
2022 | |
2023 | |
2024 static ngx_int_t | |
2025 ngx_http_mp4_read_stss_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
2026 { | |
2027 u_char *atom_header, *atom_table, *atom_end; | |
2028 uint32_t entries; | |
2029 ngx_buf_t *atom, *data; | |
2030 ngx_http_mp4_trak_t *trak; | |
2031 ngx_http_mp4_stss_atom_t *stss_atom; | |
2032 | |
2033 /* sync samples atom */ | |
2034 | |
2035 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stss atom"); | |
2036 | |
2037 atom_header = ngx_mp4_atom_header(mp4); | |
2038 stss_atom = (ngx_http_mp4_stss_atom_t *) atom_header; | |
2039 ngx_mp4_set_atom_name(stss_atom, 's', 't', 's', 's'); | |
2040 | |
4585
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2041 if (ngx_mp4_atom_data_size(ngx_http_mp4_stss_atom_t) > atom_data_size) { |
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2042 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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|
2043 "\"%s\" mp4 stss atom too small", mp4->file.name.data); |
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|
2044 return NGX_ERROR; |
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|
2045 } |
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|
2046 |
4085 | 2047 entries = ngx_mp4_get_32value(stss_atom->entries); |
2048 | |
2049 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
4096 | 2050 "sync sample entries:%uD", entries); |
4085 | 2051 |
2052 trak = ngx_mp4_last_trak(mp4); | |
2053 trak->sync_samples_entries = entries; | |
2054 | |
2055 atom_table = atom_header + sizeof(ngx_http_mp4_stss_atom_t); | |
2056 | |
2057 atom = &trak->stss_atom_buf; | |
2058 atom->temporary = 1; | |
2059 atom->pos = atom_header; | |
2060 atom->last = atom_table; | |
2061 | |
4585
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|
2062 if (ngx_mp4_atom_data_size(ngx_http_mp4_stss_atom_t) |
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|
2063 + entries * sizeof(uint32_t) > atom_data_size) |
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|
2064 { |
4085 | 2065 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
4585
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|
2066 "\"%s\" mp4 stss atom too small", mp4->file.name.data); |
4085 | 2067 return NGX_ERROR; |
2068 } | |
2069 | |
4585
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2070 atom_end = atom_table + entries * sizeof(uint32_t); |
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2071 |
4085 | 2072 data = &trak->stss_data_buf; |
2073 data->temporary = 1; | |
2074 data->pos = atom_table; | |
2075 data->last = atom_end; | |
2076 | |
2077 trak->out[NGX_HTTP_MP4_STSS_ATOM].buf = atom; | |
2078 trak->out[NGX_HTTP_MP4_STSS_DATA].buf = data; | |
2079 | |
2080 ngx_mp4_atom_next(mp4, atom_data_size); | |
2081 | |
2082 return NGX_OK; | |
2083 } | |
2084 | |
2085 | |
2086 static ngx_int_t | |
2087 ngx_http_mp4_update_stss_atom(ngx_http_mp4_file_t *mp4, | |
2088 ngx_http_mp4_trak_t *trak) | |
2089 { | |
2090 size_t atom_size; | |
2091 uint32_t entries, sample, start_sample, *entry, *end; | |
2092 ngx_buf_t *atom, *data; | |
2093 ngx_http_mp4_stss_atom_t *stss_atom; | |
2094 | |
2095 /* | |
2096 * mdia.minf.stbl.stss updating requires trak->start_sample | |
2097 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
2098 * atom which may reside after mdia.minf | |
2099 */ | |
2100 | |
2101 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
2102 "mp4 stss atom update"); | |
2103 | |
2104 data = trak->out[NGX_HTTP_MP4_STSS_DATA].buf; | |
2105 | |
2106 if (data == NULL) { | |
2107 return NGX_OK; | |
2108 } | |
2109 | |
2110 /* sync samples starts from 1 */ | |
2111 start_sample = trak->start_sample + 1; | |
2112 entries = trak->sync_samples_entries; | |
2113 | |
2114 entry = (uint32_t *) data->pos; | |
2115 end = (uint32_t *) data->last; | |
2116 | |
2117 while (entry < end) { | |
2118 sample = ngx_mp4_get_32value(entry); | |
2119 | |
2120 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
2121 "start:%uD, sync:%uD", start_sample, sample); | |
2122 | |
2123 if (sample >= start_sample) { | |
2124 goto found; | |
2125 } | |
2126 | |
2127 entries--; | |
2128 entry++; | |
2129 } | |
2130 | |
2131 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
2132 "start sample is out of mp4 stss atom in \"%s\"", | |
2133 mp4->file.name.data); | |
2134 | |
2135 return NGX_ERROR; | |
2136 | |
2137 found: | |
2138 | |
2139 data->pos = (u_char *) entry; | |
2140 | |
2141 start_sample = trak->start_sample; | |
2142 | |
2143 while (entry < end) { | |
2144 sample = ngx_mp4_get_32value(entry); | |
2145 sample -= start_sample; | |
2146 ngx_mp4_set_32value(entry, sample); | |
2147 entry++; | |
2148 } | |
2149 | |
2150 atom_size = sizeof(ngx_http_mp4_stss_atom_t) + (data->last - data->pos); | |
2151 trak->size += atom_size; | |
2152 | |
2153 atom = trak->out[NGX_HTTP_MP4_STSS_ATOM].buf; | |
2154 stss_atom = (ngx_http_mp4_stss_atom_t *) atom->pos; | |
2155 | |
2156 ngx_mp4_set_32value(stss_atom->size, atom_size); | |
2157 ngx_mp4_set_32value(stss_atom->entries, entries); | |
2158 | |
2159 return NGX_OK; | |
2160 } | |
2161 | |
2162 | |
2163 typedef struct { | |
2164 u_char size[4]; | |
2165 u_char name[4]; | |
2166 u_char version[1]; | |
2167 u_char flags[3]; | |
2168 u_char entries[4]; | |
2169 } ngx_mp4_ctts_atom_t; | |
2170 | |
2171 typedef struct { | |
2172 u_char count[4]; | |
2173 u_char offset[4]; | |
2174 } ngx_mp4_ctts_entry_t; | |
2175 | |
2176 | |
2177 static ngx_int_t | |
2178 ngx_http_mp4_read_ctts_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
2179 { | |
2180 u_char *atom_header, *atom_table, *atom_end; | |
2181 uint32_t entries; | |
2182 ngx_buf_t *atom, *data; | |
2183 ngx_mp4_ctts_atom_t *ctts_atom; | |
2184 ngx_http_mp4_trak_t *trak; | |
2185 | |
2186 /* composition offsets atom */ | |
2187 | |
2188 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 ctts atom"); | |
2189 | |
2190 atom_header = ngx_mp4_atom_header(mp4); | |
2191 ctts_atom = (ngx_mp4_ctts_atom_t *) atom_header; | |
2192 ngx_mp4_set_atom_name(ctts_atom, 'c', 't', 't', 's'); | |
2193 | |
4585
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2194 if (ngx_mp4_atom_data_size(ngx_mp4_ctts_atom_t) > atom_data_size) { |
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|
2195 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2196 "\"%s\" mp4 ctts atom too small", mp4->file.name.data); |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2197 return NGX_ERROR; |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2198 } |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2199 |
4085 | 2200 entries = ngx_mp4_get_32value(ctts_atom->entries); |
2201 | |
2202 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
4096 | 2203 "composition offset entries:%uD", entries); |
4085 | 2204 |
2205 trak = ngx_mp4_last_trak(mp4); | |
2206 trak->composition_offset_entries = entries; | |
2207 | |
2208 atom_table = atom_header + sizeof(ngx_mp4_ctts_atom_t); | |
2209 | |
2210 atom = &trak->ctts_atom_buf; | |
2211 atom->temporary = 1; | |
2212 atom->pos = atom_header; | |
2213 atom->last = atom_table; | |
2214 | |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2215 if (ngx_mp4_atom_data_size(ngx_mp4_ctts_atom_t) |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2216 + entries * sizeof(ngx_mp4_ctts_entry_t) > atom_data_size) |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2217 { |
4085 | 2218 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2219 "\"%s\" mp4 ctts atom too small", mp4->file.name.data); |
4085 | 2220 return NGX_ERROR; |
2221 } | |
2222 | |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2223 atom_end = atom_table + entries * sizeof(ngx_mp4_ctts_entry_t); |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2224 |
4085 | 2225 data = &trak->ctts_data_buf; |
2226 data->temporary = 1; | |
2227 data->pos = atom_table; | |
2228 data->last = atom_end; | |
2229 | |
2230 trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf = atom; | |
2231 trak->out[NGX_HTTP_MP4_CTTS_DATA].buf = data; | |
2232 | |
2233 ngx_mp4_atom_next(mp4, atom_data_size); | |
2234 | |
2235 return NGX_OK; | |
2236 } | |
2237 | |
2238 | |
2239 static void | |
2240 ngx_http_mp4_update_ctts_atom(ngx_http_mp4_file_t *mp4, | |
2241 ngx_http_mp4_trak_t *trak) | |
2242 { | |
2243 size_t atom_size; | |
2244 uint32_t entries, count, start_sample; | |
2245 ngx_buf_t *atom, *data; | |
2246 ngx_mp4_ctts_atom_t *ctts_atom; | |
2247 ngx_mp4_ctts_entry_t *entry, *end; | |
2248 | |
2249 /* | |
2250 * mdia.minf.stbl.ctts updating requires trak->start_sample | |
2251 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
2252 * atom which may reside after mdia.minf | |
2253 */ | |
2254 | |
2255 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
2256 "mp4 ctts atom update"); | |
2257 | |
2258 data = trak->out[NGX_HTTP_MP4_CTTS_DATA].buf; | |
2259 | |
2260 if (data == NULL) { | |
2261 return; | |
2262 } | |
2263 | |
2264 /* sync samples starts from 1 */ | |
2265 start_sample = trak->start_sample + 1; | |
2266 entries = trak->composition_offset_entries; | |
2267 entry = (ngx_mp4_ctts_entry_t *) data->pos; | |
2268 end = (ngx_mp4_ctts_entry_t *) data->last; | |
2269 | |
2270 while (entry < end) { | |
2271 count = ngx_mp4_get_32value(entry->count); | |
2272 | |
4088
8fe1da7b8386
bugfix of r4086: nginx could not be built without debug log.
Igor Sysoev <igor@sysoev.ru>
parents:
4087
diff
changeset
|
2273 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
4085 | 2274 "start:%uD, count:%uD, offset:%uD", |
2275 start_sample, count, ngx_mp4_get_32value(entry->offset)); | |
2276 | |
2277 if (start_sample <= count) { | |
2278 count -= (start_sample - 1); | |
2279 ngx_mp4_set_32value(entry->count, count); | |
2280 goto found; | |
2281 } | |
2282 | |
2283 start_sample -= count; | |
2284 entries--; | |
2285 entry++; | |
2286 } | |
2287 | |
2288 trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf = NULL; | |
2289 trak->out[NGX_HTTP_MP4_CTTS_DATA].buf = NULL; | |
2290 | |
2291 return; | |
2292 | |
2293 found: | |
2294 | |
2295 data->pos = (u_char *) entry; | |
2296 atom_size = sizeof(ngx_mp4_ctts_atom_t) + (data->last - data->pos); | |
2297 trak->size += atom_size; | |
2298 | |
2299 atom = trak->out[NGX_HTTP_MP4_CTTS_ATOM].buf; | |
2300 ctts_atom = (ngx_mp4_ctts_atom_t *) atom->pos; | |
2301 | |
2302 ngx_mp4_set_32value(ctts_atom->size, atom_size); | |
2303 ngx_mp4_set_32value(ctts_atom->entries, entries); | |
2304 | |
2305 return; | |
2306 } | |
2307 | |
2308 | |
2309 typedef struct { | |
2310 u_char size[4]; | |
2311 u_char name[4]; | |
2312 u_char version[1]; | |
2313 u_char flags[3]; | |
2314 u_char entries[4]; | |
2315 } ngx_mp4_stsc_atom_t; | |
2316 | |
2317 | |
2318 static ngx_int_t | |
2319 ngx_http_mp4_read_stsc_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
2320 { | |
2321 u_char *atom_header, *atom_table, *atom_end; | |
2322 uint32_t entries; | |
2323 ngx_buf_t *atom, *data; | |
2324 ngx_mp4_stsc_atom_t *stsc_atom; | |
2325 ngx_http_mp4_trak_t *trak; | |
2326 | |
2327 /* sample-to-chunk atom */ | |
2328 | |
2329 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsc atom"); | |
2330 | |
2331 atom_header = ngx_mp4_atom_header(mp4); | |
2332 stsc_atom = (ngx_mp4_stsc_atom_t *) atom_header; | |
2333 ngx_mp4_set_atom_name(stsc_atom, 's', 't', 's', 'c'); | |
2334 | |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2335 if (ngx_mp4_atom_data_size(ngx_mp4_stsc_atom_t) > atom_data_size) { |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2336 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2337 "\"%s\" mp4 stsc atom too small", mp4->file.name.data); |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2338 return NGX_ERROR; |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2339 } |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2340 |
4085 | 2341 entries = ngx_mp4_get_32value(stsc_atom->entries); |
2342 | |
2343 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
4096 | 2344 "sample-to-chunk entries:%uD", entries); |
4085 | 2345 |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2346 if (ngx_mp4_atom_data_size(ngx_mp4_stsc_atom_t) |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2347 + entries * sizeof(ngx_mp4_stsc_entry_t) > atom_data_size) |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2348 { |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2349 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2350 "\"%s\" mp4 stsc atom too small", mp4->file.name.data); |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2351 return NGX_ERROR; |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2352 } |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2353 |
4085 | 2354 atom_table = atom_header + sizeof(ngx_mp4_stsc_atom_t); |
2355 atom_end = atom_table + entries * sizeof(ngx_mp4_stsc_entry_t); | |
2356 | |
2357 trak = ngx_mp4_last_trak(mp4); | |
2358 trak->sample_to_chunk_entries = entries; | |
2359 | |
2360 atom = &trak->stsc_atom_buf; | |
2361 atom->temporary = 1; | |
2362 atom->pos = atom_header; | |
2363 atom->last = atom_table; | |
2364 | |
2365 data = &trak->stsc_data_buf; | |
2366 data->temporary = 1; | |
2367 data->pos = atom_table; | |
2368 data->last = atom_end; | |
2369 | |
2370 trak->out[NGX_HTTP_MP4_STSC_ATOM].buf = atom; | |
2371 trak->out[NGX_HTTP_MP4_STSC_DATA].buf = data; | |
2372 | |
2373 ngx_mp4_atom_next(mp4, atom_data_size); | |
2374 | |
2375 return NGX_OK; | |
2376 } | |
2377 | |
2378 | |
2379 static ngx_int_t | |
2380 ngx_http_mp4_update_stsc_atom(ngx_http_mp4_file_t *mp4, | |
2381 ngx_http_mp4_trak_t *trak) | |
2382 { | |
2383 size_t atom_size; | |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2384 uint32_t start_sample, entries, chunk, samples, id, |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2385 next_chunk, n; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2386 ngx_buf_t *atom, *data, *buf; |
4085 | 2387 ngx_mp4_stsc_atom_t *stsc_atom; |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2388 ngx_mp4_stsc_entry_t *entry, *first, *end; |
4085 | 2389 |
2390 /* | |
2391 * mdia.minf.stbl.stsc updating requires trak->start_sample | |
2392 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
2393 * atom which may reside after mdia.minf | |
2394 */ | |
2395 | |
2396 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
2397 "mp4 stsc atom update"); | |
2398 | |
2399 data = trak->out[NGX_HTTP_MP4_STSC_DATA].buf; | |
2400 | |
2401 if (data == NULL) { | |
2402 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
2403 "no mp4 stsc atoms were found in \"%s\"", | |
2404 mp4->file.name.data); | |
2405 return NGX_ERROR; | |
2406 } | |
2407 | |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2408 if (trak->sample_to_chunk_entries == 0) { |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2409 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2410 "zero number of entries in stsc atom in \"%s\"", |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2411 mp4->file.name.data); |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2412 return NGX_ERROR; |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2413 } |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2414 |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2415 start_sample = (uint32_t) trak->start_sample; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2416 entries = trak->sample_to_chunk_entries - 1; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2417 |
4085 | 2418 entry = (ngx_mp4_stsc_entry_t *) data->pos; |
2419 end = (ngx_mp4_stsc_entry_t *) data->last; | |
2420 | |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2421 chunk = ngx_mp4_get_32value(entry->chunk); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2422 samples = ngx_mp4_get_32value(entry->samples); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2423 id = ngx_mp4_get_32value(entry->id); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2424 entry++; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2425 |
4085 | 2426 while (entry < end) { |
2427 | |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2428 next_chunk = ngx_mp4_get_32value(entry->chunk); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2429 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2430 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2431 "start_sample:%uD, chunk:%uD, chunks:%uD, " |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2432 "samples:%uD, id:%uD", |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2433 start_sample, chunk, next_chunk - chunk, samples, id); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2434 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2435 n = (next_chunk - chunk) * samples; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2436 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2437 if (start_sample <= n) { |
4085 | 2438 goto found; |
2439 } | |
2440 | |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2441 start_sample -= n; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2442 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2443 chunk = next_chunk; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2444 samples = ngx_mp4_get_32value(entry->samples); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2445 id = ngx_mp4_get_32value(entry->id); |
4085 | 2446 entries--; |
2447 entry++; | |
2448 } | |
2449 | |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2450 next_chunk = trak->chunks; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2451 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2452 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2453 "start_sample:%uD, chunk:%uD, chunks:%uD, samples:%uD", |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2454 start_sample, chunk, next_chunk - chunk, samples); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2455 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2456 n = (next_chunk - chunk) * samples; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2457 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2458 if (start_sample > n) { |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2459 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2460 "start time is out mp4 stsc chunks in \"%s\"", |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2461 mp4->file.name.data); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2462 return NGX_ERROR; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2463 } |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2464 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2465 found: |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2466 |
4085 | 2467 entries++; |
2468 entry--; | |
2469 | |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2470 if (samples == 0) { |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2471 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2472 "zero number of samples in \"%s\"", |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2473 mp4->file.name.data); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2474 return NGX_ERROR; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2475 } |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2476 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2477 trak->start_chunk = chunk - 1; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2478 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2479 trak->start_chunk += start_sample / samples; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2480 trak->chunk_samples = start_sample % samples; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2481 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2482 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2483 "start chunk:%ui, samples:%uD", |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2484 trak->start_chunk, trak->chunk_samples); |
4085 | 2485 |
2486 data->pos = (u_char *) entry; | |
2487 atom_size = sizeof(ngx_mp4_stsc_atom_t) + (data->last - data->pos); | |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2488 |
4382
b4d54fa76853
Fixed mp4 if first entry in stsc was skipped (ticket #72).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4306
diff
changeset
|
2489 ngx_mp4_set_32value(entry->chunk, 1); |
b4d54fa76853
Fixed mp4 if first entry in stsc was skipped (ticket #72).
Maxim Dounin <mdounin@mdounin.ru>
parents:
4306
diff
changeset
|
2490 |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2491 if (trak->chunk_samples) { |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2492 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2493 first = &trak->stsc_chunk_entry; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2494 ngx_mp4_set_32value(first->chunk, 1); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2495 ngx_mp4_set_32value(first->samples, samples - trak->chunk_samples); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2496 ngx_mp4_set_32value(first->id, id); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2497 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2498 buf = &trak->stsc_chunk_buf; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2499 buf->temporary = 1; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2500 buf->pos = (u_char *) first; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2501 buf->last = (u_char *) first + sizeof(ngx_mp4_stsc_entry_t); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2502 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2503 trak->out[NGX_HTTP_MP4_STSC_CHUNK].buf = buf; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2504 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2505 ngx_mp4_set_32value(entry->chunk, 2); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2506 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2507 atom_size += sizeof(ngx_mp4_stsc_entry_t); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2508 } |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2509 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2510 while (++entry < end) { |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2511 chunk = ngx_mp4_get_32value(entry->chunk); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2512 chunk -= trak->start_chunk; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2513 ngx_mp4_set_32value(entry->chunk, chunk); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2514 } |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2515 |
4085 | 2516 trak->size += atom_size; |
2517 | |
2518 atom = trak->out[NGX_HTTP_MP4_STSC_ATOM].buf; | |
2519 stsc_atom = (ngx_mp4_stsc_atom_t *) atom->pos; | |
2520 | |
2521 ngx_mp4_set_32value(stsc_atom->size, atom_size); | |
2522 ngx_mp4_set_32value(stsc_atom->entries, entries); | |
2523 | |
2524 return NGX_OK; | |
2525 } | |
2526 | |
2527 | |
2528 typedef struct { | |
2529 u_char size[4]; | |
2530 u_char name[4]; | |
2531 u_char version[1]; | |
2532 u_char flags[3]; | |
2533 u_char uniform_size[4]; | |
2534 u_char entries[4]; | |
2535 } ngx_mp4_stsz_atom_t; | |
2536 | |
2537 | |
2538 static ngx_int_t | |
2539 ngx_http_mp4_read_stsz_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
2540 { | |
2541 u_char *atom_header, *atom_table, *atom_end; | |
2542 size_t atom_size; | |
2543 uint32_t entries, size; | |
2544 ngx_buf_t *atom, *data; | |
2545 ngx_mp4_stsz_atom_t *stsz_atom; | |
2546 ngx_http_mp4_trak_t *trak; | |
2547 | |
2548 /* sample sizes atom */ | |
2549 | |
2550 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stsz atom"); | |
2551 | |
2552 atom_header = ngx_mp4_atom_header(mp4); | |
2553 stsz_atom = (ngx_mp4_stsz_atom_t *) atom_header; | |
2554 ngx_mp4_set_atom_name(stsz_atom, 's', 't', 's', 'z'); | |
2555 | |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2556 if (ngx_mp4_atom_data_size(ngx_mp4_stsz_atom_t) > atom_data_size) { |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2557 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2558 "\"%s\" mp4 stsz atom too small", mp4->file.name.data); |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2559 return NGX_ERROR; |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2560 } |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2561 |
4085 | 2562 size = ngx_mp4_get_32value(stsz_atom->uniform_size); |
2563 entries = ngx_mp4_get_32value(stsz_atom->entries); | |
2564 | |
2565 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
2566 "sample uniform size:%uD, entries:%uD", size, entries); | |
2567 | |
2568 trak = ngx_mp4_last_trak(mp4); | |
2569 trak->sample_sizes_entries = entries; | |
2570 | |
2571 atom_table = atom_header + sizeof(ngx_mp4_stsz_atom_t); | |
2572 | |
2573 atom = &trak->stsz_atom_buf; | |
2574 atom->temporary = 1; | |
2575 atom->pos = atom_header; | |
2576 atom->last = atom_table; | |
2577 | |
2578 trak->out[NGX_HTTP_MP4_STSZ_ATOM].buf = atom; | |
2579 | |
2580 if (size == 0) { | |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2581 if (ngx_mp4_atom_data_size(ngx_mp4_stsz_atom_t) |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2582 + entries * sizeof(uint32_t) > atom_data_size) |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2583 { |
4085 | 2584 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2585 "\"%s\" mp4 stsz atom too small", |
4085 | 2586 mp4->file.name.data); |
2587 return NGX_ERROR; | |
2588 } | |
2589 | |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2590 atom_end = atom_table + entries * sizeof(uint32_t); |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2591 |
4085 | 2592 data = &trak->stsz_data_buf; |
2593 data->temporary = 1; | |
2594 data->pos = atom_table; | |
2595 data->last = atom_end; | |
2596 | |
2597 trak->out[NGX_HTTP_MP4_STSZ_DATA].buf = data; | |
2598 | |
2599 } else { | |
2600 /* if size != 0 then all samples are the same size */ | |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2601 /* TODO : chunk samples */ |
4085 | 2602 atom_size = sizeof(ngx_mp4_atom_header_t) + (size_t) atom_data_size; |
2603 ngx_mp4_set_32value(atom_header, atom_size); | |
2604 trak->size += atom_size; | |
2605 } | |
2606 | |
2607 ngx_mp4_atom_next(mp4, atom_data_size); | |
2608 | |
2609 return NGX_OK; | |
2610 } | |
2611 | |
2612 | |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2613 static ngx_int_t |
4085 | 2614 ngx_http_mp4_update_stsz_atom(ngx_http_mp4_file_t *mp4, |
2615 ngx_http_mp4_trak_t *trak) | |
2616 { | |
2617 size_t atom_size; | |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2618 uint32_t *pos, *end; |
4085 | 2619 ngx_buf_t *atom, *data; |
2620 ngx_mp4_stsz_atom_t *stsz_atom; | |
2621 | |
2622 /* | |
2623 * mdia.minf.stbl.stsz updating requires trak->start_sample | |
2624 * from mdia.minf.stbl.stts which depends on value from mdia.mdhd | |
2625 * atom which may reside after mdia.minf | |
2626 */ | |
2627 | |
2628 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
2629 "mp4 stsz atom update"); | |
2630 | |
2631 data = trak->out[NGX_HTTP_MP4_STSZ_DATA].buf; | |
2632 | |
2633 if (data) { | |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2634 if (trak->start_sample > trak->sample_sizes_entries) { |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2635 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2636 "start time is out mp4 stsz samples in \"%s\"", |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2637 mp4->file.name.data); |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2638 return NGX_ERROR; |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2639 } |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2640 |
4085 | 2641 data->pos += trak->start_sample * sizeof(uint32_t); |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2642 end = (uint32_t *) data->pos; |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
2643 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2644 for (pos = end - trak->chunk_samples; pos < end; pos++) { |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2645 trak->chunk_samples_size += ngx_mp4_get_32value(pos); |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
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4096
diff
changeset
|
2646 } |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2647 |
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2648 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, |
4112 | 2649 "chunk samples sizes:%uL", trak->chunk_samples_size); |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2650 |
4085 | 2651 atom_size = sizeof(ngx_mp4_stsz_atom_t) + (data->last - data->pos); |
2652 trak->size += atom_size; | |
2653 | |
2654 atom = trak->out[NGX_HTTP_MP4_STSZ_ATOM].buf; | |
2655 stsz_atom = (ngx_mp4_stsz_atom_t *) atom->pos; | |
2656 | |
2657 ngx_mp4_set_32value(stsz_atom->size, atom_size); | |
2658 ngx_mp4_set_32value(stsz_atom->entries, | |
2659 trak->sample_sizes_entries - trak->start_sample); | |
2660 } | |
4585
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
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4579
diff
changeset
|
2661 |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
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4579
diff
changeset
|
2662 return NGX_OK; |
4085 | 2663 } |
2664 | |
2665 | |
2666 typedef struct { | |
2667 u_char size[4]; | |
2668 u_char name[4]; | |
2669 u_char version[1]; | |
2670 u_char flags[3]; | |
2671 u_char entries[4]; | |
2672 } ngx_mp4_stco_atom_t; | |
2673 | |
2674 | |
2675 static ngx_int_t | |
2676 ngx_http_mp4_read_stco_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
2677 { | |
2678 u_char *atom_header, *atom_table, *atom_end; | |
2679 uint32_t entries; | |
2680 ngx_buf_t *atom, *data; | |
2681 ngx_mp4_stco_atom_t *stco_atom; | |
2682 ngx_http_mp4_trak_t *trak; | |
2683 | |
2684 /* chunk offsets atom */ | |
2685 | |
2686 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 stco atom"); | |
2687 | |
2688 atom_header = ngx_mp4_atom_header(mp4); | |
2689 stco_atom = (ngx_mp4_stco_atom_t *) atom_header; | |
2690 ngx_mp4_set_atom_name(stco_atom, 's', 't', 'c', 'o'); | |
2691 | |
4585
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diff
changeset
|
2692 if (ngx_mp4_atom_data_size(ngx_mp4_stco_atom_t) > atom_data_size) { |
3f874d645f45
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diff
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|
2693 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
3f874d645f45
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parents:
4579
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|
2694 "\"%s\" mp4 stco atom too small", mp4->file.name.data); |
3f874d645f45
Mp4: sanity checks cleanup.
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4579
diff
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|
2695 return NGX_ERROR; |
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
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diff
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|
2696 } |
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|
2697 |
4085 | 2698 entries = ngx_mp4_get_32value(stco_atom->entries); |
2699 | |
2700 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries); | |
2701 | |
4585
3f874d645f45
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parents:
4579
diff
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|
2702 if (ngx_mp4_atom_data_size(ngx_mp4_stco_atom_t) |
3f874d645f45
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parents:
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diff
changeset
|
2703 + entries * sizeof(uint32_t) > atom_data_size) |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2704 { |
3f874d645f45
Mp4: sanity checks cleanup.
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4579
diff
changeset
|
2705 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
2706 "\"%s\" mp4 stco atom too small", mp4->file.name.data); |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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|
2707 return NGX_ERROR; |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
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|
2708 } |
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|
2709 |
4085 | 2710 atom_table = atom_header + sizeof(ngx_mp4_stco_atom_t); |
2711 atom_end = atom_table + entries * sizeof(uint32_t); | |
2712 | |
2713 trak = ngx_mp4_last_trak(mp4); | |
2714 trak->chunks = entries; | |
2715 | |
4107 | 2716 atom = &trak->stco_atom_buf; |
4085 | 2717 atom->temporary = 1; |
2718 atom->pos = atom_header; | |
2719 atom->last = atom_table; | |
2720 | |
4107 | 2721 data = &trak->stco_data_buf; |
4085 | 2722 data->temporary = 1; |
2723 data->pos = atom_table; | |
2724 data->last = atom_end; | |
2725 | |
2726 trak->out[NGX_HTTP_MP4_STCO_ATOM].buf = atom; | |
2727 trak->out[NGX_HTTP_MP4_STCO_DATA].buf = data; | |
2728 | |
2729 ngx_mp4_atom_next(mp4, atom_data_size); | |
2730 | |
2731 return NGX_OK; | |
2732 } | |
2733 | |
2734 | |
2735 static ngx_int_t | |
2736 ngx_http_mp4_update_stco_atom(ngx_http_mp4_file_t *mp4, | |
2737 ngx_http_mp4_trak_t *trak) | |
2738 { | |
2739 size_t atom_size; | |
2740 ngx_buf_t *atom, *data; | |
2741 ngx_mp4_stco_atom_t *stco_atom; | |
2742 | |
2743 /* | |
2744 * mdia.minf.stbl.stco updating requires trak->start_chunk | |
2745 * from mdia.minf.stbl.stsc which depends on value from mdia.mdhd | |
2746 * atom which may reside after mdia.minf | |
2747 */ | |
2748 | |
2749 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
2750 "mp4 stco atom update"); | |
2751 | |
2752 data = trak->out[NGX_HTTP_MP4_STCO_DATA].buf; | |
2753 | |
2754 if (data == NULL) { | |
2755 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
2756 "no mp4 stco atoms were found in \"%s\"", | |
2757 mp4->file.name.data); | |
2758 return NGX_ERROR; | |
2759 } | |
2760 | |
4585
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4579
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|
2761 if (trak->start_chunk > trak->chunks) { |
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|
2762 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
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|
2763 "start time is out mp4 stco chunks in \"%s\"", |
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parents:
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|
2764 mp4->file.name.data); |
3f874d645f45
Mp4: sanity checks cleanup.
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|
2765 return NGX_ERROR; |
3f874d645f45
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|
2766 } |
3f874d645f45
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|
2767 |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2768 data->pos += trak->start_chunk * sizeof(uint32_t); |
4085 | 2769 atom_size = sizeof(ngx_mp4_stco_atom_t) + (data->last - data->pos); |
2770 trak->size += atom_size; | |
2771 | |
2772 trak->start_offset = ngx_mp4_get_32value(data->pos); | |
4098
a3e07fab98a3
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Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2773 trak->start_offset += trak->chunk_samples_size; |
a3e07fab98a3
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parents:
4096
diff
changeset
|
2774 ngx_mp4_set_32value(data->pos, trak->start_offset); |
4085 | 2775 |
2776 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
2777 "start chunk offset:%uD", trak->start_offset); | |
2778 | |
2779 atom = trak->out[NGX_HTTP_MP4_STCO_ATOM].buf; | |
2780 stco_atom = (ngx_mp4_stco_atom_t *) atom->pos; | |
2781 | |
2782 ngx_mp4_set_32value(stco_atom->size, atom_size); | |
4098
a3e07fab98a3
Fix of case when start sample does not reside on chunk boundary.
Igor Sysoev <igor@sysoev.ru>
parents:
4096
diff
changeset
|
2783 ngx_mp4_set_32value(stco_atom->entries, trak->chunks - trak->start_chunk); |
4085 | 2784 |
2785 return NGX_OK; | |
2786 } | |
2787 | |
2788 | |
2789 static void | |
2790 ngx_http_mp4_adjust_stco_atom(ngx_http_mp4_file_t *mp4, | |
2791 ngx_http_mp4_trak_t *trak, int32_t adjustment) | |
2792 { | |
2793 uint32_t offset, *entry, *end; | |
2794 ngx_buf_t *data; | |
2795 | |
2796 /* | |
2797 * moov.trak.mdia.minf.stbl.stco adjustment requires | |
2798 * minimal start offset of all traks and new moov atom size | |
2799 */ | |
2800 | |
2801 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
2802 "mp4 stco atom adjustment"); | |
2803 | |
2804 data = trak->out[NGX_HTTP_MP4_STCO_DATA].buf; | |
2805 entry = (uint32_t *) data->pos; | |
2806 end = (uint32_t *) data->last; | |
2807 | |
2808 while (entry < end) { | |
2809 offset = ngx_mp4_get_32value(entry); | |
2810 offset += adjustment; | |
2811 ngx_mp4_set_32value(entry, offset); | |
2812 entry++; | |
2813 } | |
2814 } | |
2815 | |
2816 | |
4112 | 2817 typedef struct { |
2818 u_char size[4]; | |
2819 u_char name[4]; | |
2820 u_char version[1]; | |
2821 u_char flags[3]; | |
2822 u_char entries[4]; | |
2823 } ngx_mp4_co64_atom_t; | |
2824 | |
2825 | |
2826 static ngx_int_t | |
2827 ngx_http_mp4_read_co64_atom(ngx_http_mp4_file_t *mp4, uint64_t atom_data_size) | |
2828 { | |
2829 u_char *atom_header, *atom_table, *atom_end; | |
2830 uint32_t entries; | |
2831 ngx_buf_t *atom, *data; | |
2832 ngx_mp4_co64_atom_t *co64_atom; | |
2833 ngx_http_mp4_trak_t *trak; | |
2834 | |
2835 /* chunk offsets atom */ | |
2836 | |
2837 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "mp4 co64 atom"); | |
2838 | |
2839 atom_header = ngx_mp4_atom_header(mp4); | |
2840 co64_atom = (ngx_mp4_co64_atom_t *) atom_header; | |
2841 ngx_mp4_set_atom_name(co64_atom, 'c', 'o', '6', '4'); | |
2842 | |
4585
3f874d645f45
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changeset
|
2843 if (ngx_mp4_atom_data_size(ngx_mp4_co64_atom_t) > atom_data_size) { |
3f874d645f45
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parents:
4579
diff
changeset
|
2844 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2845 "\"%s\" mp4 co64 atom too small", mp4->file.name.data); |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2846 return NGX_ERROR; |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
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|
2847 } |
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2848 |
4112 | 2849 entries = ngx_mp4_get_32value(co64_atom->entries); |
2850 | |
2851 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, "chunks:%uD", entries); | |
2852 | |
4585
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2853 if (ngx_mp4_atom_data_size(ngx_mp4_co64_atom_t) |
3f874d645f45
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parents:
4579
diff
changeset
|
2854 + entries * sizeof(uint64_t) > atom_data_size) |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
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|
2855 { |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2856 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
3f874d645f45
Mp4: sanity checks cleanup.
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parents:
4579
diff
changeset
|
2857 "\"%s\" mp4 co64 atom too small", mp4->file.name.data); |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
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|
2858 return NGX_ERROR; |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
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|
2859 } |
3f874d645f45
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4579
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|
2860 |
4112 | 2861 atom_table = atom_header + sizeof(ngx_mp4_co64_atom_t); |
2862 atom_end = atom_table + entries * sizeof(uint64_t); | |
2863 | |
2864 trak = ngx_mp4_last_trak(mp4); | |
2865 trak->chunks = entries; | |
2866 | |
2867 atom = &trak->co64_atom_buf; | |
2868 atom->temporary = 1; | |
2869 atom->pos = atom_header; | |
2870 atom->last = atom_table; | |
2871 | |
2872 data = &trak->co64_data_buf; | |
2873 data->temporary = 1; | |
2874 data->pos = atom_table; | |
2875 data->last = atom_end; | |
2876 | |
2877 trak->out[NGX_HTTP_MP4_CO64_ATOM].buf = atom; | |
2878 trak->out[NGX_HTTP_MP4_CO64_DATA].buf = data; | |
2879 | |
2880 ngx_mp4_atom_next(mp4, atom_data_size); | |
2881 | |
2882 return NGX_OK; | |
2883 } | |
2884 | |
2885 | |
2886 static ngx_int_t | |
2887 ngx_http_mp4_update_co64_atom(ngx_http_mp4_file_t *mp4, | |
2888 ngx_http_mp4_trak_t *trak) | |
2889 { | |
2890 size_t atom_size; | |
2891 ngx_buf_t *atom, *data; | |
2892 ngx_mp4_co64_atom_t *co64_atom; | |
2893 | |
2894 /* | |
2895 * mdia.minf.stbl.co64 updating requires trak->start_chunk | |
2896 * from mdia.minf.stbl.stsc which depends on value from mdia.mdhd | |
2897 * atom which may reside after mdia.minf | |
2898 */ | |
2899 | |
2900 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
2901 "mp4 co64 atom update"); | |
2902 | |
2903 data = trak->out[NGX_HTTP_MP4_CO64_DATA].buf; | |
2904 | |
2905 if (data == NULL) { | |
2906 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, | |
2907 "no mp4 co64 atoms were found in \"%s\"", | |
2908 mp4->file.name.data); | |
2909 return NGX_ERROR; | |
2910 } | |
2911 | |
4585
3f874d645f45
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4579
diff
changeset
|
2912 if (trak->start_chunk > trak->chunks) { |
3f874d645f45
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4579
diff
changeset
|
2913 ngx_log_error(NGX_LOG_ERR, mp4->file.log, 0, |
3f874d645f45
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parents:
4579
diff
changeset
|
2914 "start time is out mp4 co64 chunks in \"%s\"", |
3f874d645f45
Mp4: sanity checks cleanup.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4579
diff
changeset
|
2915 mp4->file.name.data); |
3f874d645f45
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4579
diff
changeset
|
2916 return NGX_ERROR; |
3f874d645f45
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Maxim Dounin <mdounin@mdounin.ru>
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4579
diff
changeset
|
2917 } |
3f874d645f45
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4579
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|
2918 |
4112 | 2919 data->pos += trak->start_chunk * sizeof(uint64_t); |
2920 atom_size = sizeof(ngx_mp4_co64_atom_t) + (data->last - data->pos); | |
2921 trak->size += atom_size; | |
2922 | |
2923 trak->start_offset = ngx_mp4_get_64value(data->pos); | |
2924 trak->start_offset += trak->chunk_samples_size; | |
2925 ngx_mp4_set_64value(data->pos, trak->start_offset); | |
2926 | |
2927 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
2928 "start chunk offset:%uL", trak->start_offset); | |
2929 | |
2930 atom = trak->out[NGX_HTTP_MP4_CO64_ATOM].buf; | |
2931 co64_atom = (ngx_mp4_co64_atom_t *) atom->pos; | |
2932 | |
2933 ngx_mp4_set_32value(co64_atom->size, atom_size); | |
2934 ngx_mp4_set_32value(co64_atom->entries, trak->chunks - trak->start_chunk); | |
2935 | |
2936 return NGX_OK; | |
2937 } | |
2938 | |
2939 | |
2940 static void | |
2941 ngx_http_mp4_adjust_co64_atom(ngx_http_mp4_file_t *mp4, | |
2942 ngx_http_mp4_trak_t *trak, off_t adjustment) | |
2943 { | |
2944 uint64_t offset, *entry, *end; | |
2945 ngx_buf_t *data; | |
2946 | |
2947 /* | |
2948 * moov.trak.mdia.minf.stbl.co64 adjustment requires | |
2949 * minimal start offset of all traks and new moov atom size | |
2950 */ | |
2951 | |
2952 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, mp4->file.log, 0, | |
2953 "mp4 co64 atom adjustment"); | |
2954 | |
2955 data = trak->out[NGX_HTTP_MP4_CO64_DATA].buf; | |
2956 entry = (uint64_t *) data->pos; | |
2957 end = (uint64_t *) data->last; | |
2958 | |
2959 while (entry < end) { | |
2960 offset = ngx_mp4_get_64value(entry); | |
2961 offset += adjustment; | |
2962 ngx_mp4_set_64value(entry, offset); | |
2963 entry++; | |
2964 } | |
2965 } | |
2966 | |
2967 | |
4085 | 2968 static char * |
2969 ngx_http_mp4(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
2970 { | |
2971 ngx_http_core_loc_conf_t *clcf; | |
2972 | |
2973 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
2974 clcf->handler = ngx_http_mp4_handler; | |
2975 | |
2976 return NGX_CONF_OK; | |
2977 } | |
2978 | |
2979 | |
2980 static void * | |
2981 ngx_http_mp4_create_conf(ngx_conf_t *cf) | |
2982 { | |
2983 ngx_http_mp4_conf_t *conf; | |
2984 | |
2985 conf = ngx_palloc(cf->pool, sizeof(ngx_http_mp4_conf_t)); | |
2986 if (conf == NULL) { | |
2987 return NULL; | |
2988 } | |
2989 | |
2990 conf->buffer_size = NGX_CONF_UNSET_SIZE; | |
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
2991 conf->max_buffer_size = NGX_CONF_UNSET_SIZE; |
4085 | 2992 |
2993 return conf; | |
2994 } | |
2995 | |
2996 | |
2997 static char * | |
2998 ngx_http_mp4_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
2999 { | |
3000 ngx_http_mp4_conf_t *prev = parent; | |
3001 ngx_http_mp4_conf_t *conf = child; | |
3002 | |
3003 ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size, 512 * 1024); | |
4089
e27670e1ab70
mp4_max_moov_size directive has been renamed to mp4_max_buffer_size.
Igor Sysoev <igor@sysoev.ru>
parents:
4088
diff
changeset
|
3004 ngx_conf_merge_size_value(conf->max_buffer_size, prev->max_buffer_size, |
4085 | 3005 10 * 1024 * 1024); |
3006 | |
3007 return NGX_CONF_OK; | |
3008 } |