FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavformat/flvdec.c
Date: 2024-11-20 23:03:26
Exec Total Coverage
Lines: 651 1008 64.6%
Functions: 23 26 88.5%
Branches: 448 863 51.9%
Line Branch Exec Source
1 /*
2 * FLV demuxer
3 * Copyright (c) 2003 The FFmpeg Project
4 *
5 * This demuxer will generate a 1 byte extradata for VP6F content.
6 * It is composed of:
7 * - upper 4 bits: difference between encoded width and visible width
8 * - lower 4 bits: difference between encoded height and visible height
9 *
10 * This file is part of FFmpeg.
11 *
12 * FFmpeg is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU Lesser General Public
14 * License as published by the Free Software Foundation; either
15 * version 2.1 of the License, or (at your option) any later version.
16 *
17 * FFmpeg is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * Lesser General Public License for more details.
21 *
22 * You should have received a copy of the GNU Lesser General Public
23 * License along with FFmpeg; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 */
26
27 #include "libavutil/avassert.h"
28 #include "libavutil/avstring.h"
29 #include "libavutil/channel_layout.h"
30 #include "libavutil/dict.h"
31 #include "libavutil/dict_internal.h"
32 #include "libavutil/mem.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/internal.h"
35 #include "libavutil/intfloat.h"
36 #include "libavutil/intreadwrite.h"
37 #include "libavutil/mastering_display_metadata.h"
38 #include "avformat.h"
39 #include "demux.h"
40 #include "internal.h"
41 #include "flv.h"
42
43 #define VALIDATE_INDEX_TS_THRESH 2500
44
45 #define RESYNC_BUFFER_SIZE (1<<20)
46
47 #define MAX_DEPTH 16 ///< arbitrary limit to prevent unbounded recursion
48
49 typedef struct FLVMasteringMeta {
50 double r_x;
51 double r_y;
52 double g_x;
53 double g_y;
54 double b_x;
55 double b_y;
56 double white_x;
57 double white_y;
58 double max_luminance;
59 double min_luminance;
60 } FLVMasteringMeta;
61
62 typedef struct FLVMetaVideoColor {
63 uint64_t matrix_coefficients;
64 uint64_t transfer_characteristics;
65 uint64_t primaries;
66 uint64_t max_cll;
67 uint64_t max_fall;
68 FLVMasteringMeta mastering_meta;
69 } FLVMetaVideoColor;
70
71 typedef struct FLVContext {
72 const AVClass *class; ///< Class for private options.
73 int trust_metadata; ///< configure streams according onMetaData
74 int trust_datasize; ///< trust data size of FLVTag
75 int dump_full_metadata; ///< Dump full metadata of the onMetadata
76 int wrong_dts; ///< wrong dts due to negative cts
77 uint8_t *new_extradata[FLV_STREAM_TYPE_NB];
78 int new_extradata_size[FLV_STREAM_TYPE_NB];
79 int last_sample_rate;
80 int last_channels;
81 struct {
82 int64_t dts;
83 int64_t pos;
84 } validate_index[2];
85 int validate_next;
86 int validate_count;
87 int searched_for_end;
88
89 uint8_t resync_buffer[2*RESYNC_BUFFER_SIZE];
90
91 int broken_sizes;
92 int64_t sum_flv_tag_size;
93
94 int last_keyframe_stream_index;
95 int keyframe_count;
96 int64_t video_bit_rate;
97 int64_t audio_bit_rate;
98 int64_t *keyframe_times;
99 int64_t *keyframe_filepositions;
100 AVRational framerate;
101 int64_t last_ts;
102 int64_t time_offset;
103 int64_t time_pos;
104
105 FLVMetaVideoColor *metaVideoColor;
106 int meta_color_info_flag;
107 } FLVContext;
108
109 /* AMF date type */
110 typedef struct amf_date {
111 double milliseconds;
112 int16_t timezone;
113 } amf_date;
114
115 14372 static int probe(const AVProbeData *p, int live)
116 {
117 14372 const uint8_t *d = p->buf;
118 14372 unsigned offset = AV_RB32(d + 5);
119
120
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 14372 if (d[0] == 'F' &&
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 128 d[1] == 'L' &&
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 68 d[2] == 'V' &&
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 68 d[3] < 5 && d[5] == 0 &&
124
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 68 offset + 100 < p->buf_size &&
125 offset > 8) {
126 68 int is_live = !memcmp(d + offset + 40, "NGINX RTMP", 10);
127
128
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 68 if (live == is_live)
129 34 return AVPROBE_SCORE_MAX;
130 }
131 14338 return 0;
132 }
133
134 7186 static int flv_probe(const AVProbeData *p)
135 {
136 7186 return probe(p, 0);
137 }
138
139 7186 static int live_flv_probe(const AVProbeData *p)
140 {
141 7186 return probe(p, 1);
142 }
143
144 7186 static int kux_probe(const AVProbeData *p)
145 {
146 7186 const uint8_t *d = p->buf;
147
148
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 7186 if (d[0] == 'K' &&
149
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 3 d[1] == 'D' &&
150 ✗ d[2] == 'K' &&
151 ✗ d[3] == 0 &&
152 ✗ d[4] == 0) {
153 ✗ return AVPROBE_SCORE_EXTENSION + 1;
154 }
155 7186 return 0;
156 }
157
158 40 static void add_keyframes_index(AVFormatContext *s)
159 {
160 40 FLVContext *flv = s->priv_data;
161 40 AVStream *stream = NULL;
162 40 unsigned int i = 0;
163
164
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 40 if (flv->last_keyframe_stream_index < 0) {
165 3 av_log(s, AV_LOG_DEBUG, "keyframe stream hasn't been created\n");
166 3 return;
167 }
168
169
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 37 av_assert0(flv->last_keyframe_stream_index <= s->nb_streams);
170 37 stream = s->streams[flv->last_keyframe_stream_index];
171
172
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 37 if (ffstream(stream)->nb_index_entries == 0) {
173
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 210 for (i = 0; i < flv->keyframe_count; i++) {
174 173 av_log(s, AV_LOG_TRACE, "keyframe filepositions = %"PRId64" times = %"PRId64"\n",
175 173 flv->keyframe_filepositions[i], flv->keyframe_times[i]);
176 173 av_add_index_entry(stream, flv->keyframe_filepositions[i],
177 173 flv->keyframe_times[i], 0, 0, AVINDEX_KEYFRAME);
178 }
179 } else
180 ✗ av_log(s, AV_LOG_WARNING, "Skipping duplicate index\n");
181
182
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 37 if (stream->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
183 28 av_freep(&flv->keyframe_times);
184 28 av_freep(&flv->keyframe_filepositions);
185 28 flv->keyframe_count = 0;
186 }
187 }
188
189 37 static AVStream *create_stream(AVFormatContext *s, int codec_type)
190 {
191 37 FFFormatContext *const si = ffformatcontext(s);
192 37 FLVContext *flv = s->priv_data;
193 37 AVStream *st = avformat_new_stream(s, NULL);
194
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 37 if (!st)
195 ✗ return NULL;
196 37 st->codecpar->codec_type = codec_type;
197
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 37 if (s->nb_streams>=3 ||( s->nb_streams==2
198
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 3 && s->streams[0]->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE
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 3 && s->streams[1]->codecpar->codec_type != AVMEDIA_TYPE_SUBTITLE
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 3 && s->streams[0]->codecpar->codec_type != AVMEDIA_TYPE_DATA
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 3 && s->streams[1]->codecpar->codec_type != AVMEDIA_TYPE_DATA))
202 3 s->ctx_flags &= ~AVFMTCTX_NOHEADER;
203
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 37 if (codec_type == AVMEDIA_TYPE_AUDIO) {
204 9 st->codecpar->bit_rate = flv->audio_bit_rate;
205 9 si->missing_streams &= ~FLV_HEADER_FLAG_HASAUDIO;
206 }
207
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 37 if (codec_type == AVMEDIA_TYPE_VIDEO) {
208 28 st->codecpar->bit_rate = flv->video_bit_rate;
209 28 si->missing_streams &= ~FLV_HEADER_FLAG_HASVIDEO;
210 28 st->avg_frame_rate = flv->framerate;
211 }
212
213
214 37 avpriv_set_pts_info(st, 32, 1, 1000); /* 32 bit pts in ms */
215 37 flv->last_keyframe_stream_index = s->nb_streams - 1;
216 37 add_keyframes_index(s);
217 37 return st;
218 }
219
220 2376 static int flv_same_audio_codec(AVCodecParameters *apar, int flags)
221 {
222
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 2376 int bits_per_coded_sample = (flags & FLV_AUDIO_SAMPLESIZE_MASK) ? 16 : 8;
223 2376 int flv_codecid = flags & FLV_AUDIO_CODECID_MASK;
224 int codec_id;
225
226
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 2376 if (!apar->codec_id && !apar->codec_tag)
227 ✗ return 1;
228
229
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 2376 if (apar->bits_per_coded_sample != bits_per_coded_sample)
230 ✗ return 0;
231
232
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 2376 switch (flv_codecid) {
233 // no distinction between S16 and S8 PCM codec flags
234 ✗ case FLV_CODECID_PCM:
235 ✗ codec_id = bits_per_coded_sample == 8
236 ? AV_CODEC_ID_PCM_U8
237 #if HAVE_BIGENDIAN
238 : AV_CODEC_ID_PCM_S16BE;
239 #else
240 ✗ : AV_CODEC_ID_PCM_S16LE;
241 #endif
242 ✗ return codec_id == apar->codec_id;
243 ✗ case FLV_CODECID_PCM_LE:
244 ✗ codec_id = bits_per_coded_sample == 8
245 ? AV_CODEC_ID_PCM_U8
246 ✗ : AV_CODEC_ID_PCM_S16LE;
247 ✗ return codec_id == apar->codec_id;
248 397 case FLV_CODECID_AAC:
249 397 return apar->codec_id == AV_CODEC_ID_AAC;
250 284 case FLV_CODECID_ADPCM:
251 284 return apar->codec_id == AV_CODEC_ID_ADPCM_SWF;
252 ✗ case FLV_CODECID_SPEEX:
253 ✗ return apar->codec_id == AV_CODEC_ID_SPEEX;
254 ✗ case FLV_CODECID_MP3:
255 ✗ return apar->codec_id == AV_CODEC_ID_MP3;
256 1695 case FLV_CODECID_NELLYMOSER_8KHZ_MONO:
257 case FLV_CODECID_NELLYMOSER_16KHZ_MONO:
258 case FLV_CODECID_NELLYMOSER:
259 1695 return apar->codec_id == AV_CODEC_ID_NELLYMOSER;
260 ✗ case FLV_CODECID_PCM_MULAW:
261 ✗ return apar->sample_rate == 8000 &&
262 ✗ apar->codec_id == AV_CODEC_ID_PCM_MULAW;
263 ✗ case FLV_CODECID_PCM_ALAW:
264 ✗ return apar->sample_rate == 8000 &&
265 ✗ apar->codec_id == AV_CODEC_ID_PCM_ALAW;
266 ✗ default:
267 ✗ return apar->codec_tag == (flv_codecid >> FLV_AUDIO_CODECID_OFFSET);
268 }
269 }
270
271 2385 static void flv_set_audio_codec(AVFormatContext *s, AVStream *astream,
272 AVCodecParameters *apar, int flv_codecid)
273 {
274
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 2385 switch (flv_codecid) {
275 // no distinction between S16 and S8 PCM codec flags
276 ✗ case FLV_CODECID_PCM:
277 ✗ apar->codec_id = apar->bits_per_coded_sample == 8
278 ? AV_CODEC_ID_PCM_U8
279 #if HAVE_BIGENDIAN
280 : AV_CODEC_ID_PCM_S16BE;
281 #else
282 ✗ : AV_CODEC_ID_PCM_S16LE;
283 #endif
284 ✗ break;
285 ✗ case FLV_CODECID_PCM_LE:
286 ✗ apar->codec_id = apar->bits_per_coded_sample == 8
287 ? AV_CODEC_ID_PCM_U8
288 ✗ : AV_CODEC_ID_PCM_S16LE;
289 ✗ break;
290 399 case FLV_CODECID_AAC:
291 399 apar->codec_id = AV_CODEC_ID_AAC;
292 399 break;
293 288 case FLV_CODECID_ADPCM:
294 288 apar->codec_id = AV_CODEC_ID_ADPCM_SWF;
295 288 break;
296 ✗ case FLV_CODECID_SPEEX:
297 ✗ apar->codec_id = AV_CODEC_ID_SPEEX;
298 ✗ apar->sample_rate = 16000;
299 ✗ break;
300 ✗ case FLV_CODECID_MP3:
301 ✗ apar->codec_id = AV_CODEC_ID_MP3;
302 ✗ ffstream(astream)->need_parsing = AVSTREAM_PARSE_FULL;
303 ✗ break;
304 ✗ case FLV_CODECID_NELLYMOSER_8KHZ_MONO:
305 // in case metadata does not otherwise declare samplerate
306 ✗ apar->sample_rate = 8000;
307 ✗ apar->codec_id = AV_CODEC_ID_NELLYMOSER;
308 ✗ break;
309 376 case FLV_CODECID_NELLYMOSER_16KHZ_MONO:
310 376 apar->sample_rate = 16000;
311 376 apar->codec_id = AV_CODEC_ID_NELLYMOSER;
312 376 break;
313 1322 case FLV_CODECID_NELLYMOSER:
314 1322 apar->codec_id = AV_CODEC_ID_NELLYMOSER;
315 1322 break;
316 ✗ case FLV_CODECID_PCM_MULAW:
317 ✗ apar->sample_rate = 8000;
318 ✗ apar->codec_id = AV_CODEC_ID_PCM_MULAW;
319 ✗ break;
320 ✗ case FLV_CODECID_PCM_ALAW:
321 ✗ apar->sample_rate = 8000;
322 ✗ apar->codec_id = AV_CODEC_ID_PCM_ALAW;
323 ✗ break;
324 ✗ default:
325 ✗ avpriv_request_sample(s, "Audio codec (%x)",
326 flv_codecid >> FLV_AUDIO_CODECID_OFFSET);
327 ✗ apar->codec_tag = flv_codecid >> FLV_AUDIO_CODECID_OFFSET;
328 }
329 2385 }
330
331 2274 static int flv_same_video_codec(AVCodecParameters *vpar, uint32_t flv_codecid)
332 {
333
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 2274 if (!vpar->codec_id && !vpar->codec_tag)
334 ✗ return 1;
335
336
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 2274 switch (flv_codecid) {
337 110 case MKBETAG('h', 'v', 'c', '1'):
338 110 return vpar->codec_id == AV_CODEC_ID_HEVC;
339 ✗ case MKBETAG('a', 'v', '0', '1'):
340 ✗ return vpar->codec_id == AV_CODEC_ID_AV1;
341 10 case MKBETAG('v', 'p', '0', '9'):
342 10 return vpar->codec_id == AV_CODEC_ID_VP9;
343 493 case FLV_CODECID_H263:
344 493 return vpar->codec_id == AV_CODEC_ID_FLV1;
345 271 case FLV_CODECID_SCREEN:
346 271 return vpar->codec_id == AV_CODEC_ID_FLASHSV;
347 196 case FLV_CODECID_SCREEN2:
348 196 return vpar->codec_id == AV_CODEC_ID_FLASHSV2;
349 173 case FLV_CODECID_VP6:
350 173 return vpar->codec_id == AV_CODEC_ID_VP6F;
351 ✗ case FLV_CODECID_VP6A:
352 ✗ return vpar->codec_id == AV_CODEC_ID_VP6A;
353 1021 case FLV_CODECID_H264:
354 1021 return vpar->codec_id == AV_CODEC_ID_H264;
355 ✗ default:
356 ✗ return vpar->codec_tag == flv_codecid;
357 }
358 }
359
360 2078 static int flv_set_video_codec(AVFormatContext *s, AVStream *vstream,
361 uint32_t flv_codecid, int read)
362 {
363 2078 FFStream *const vstreami = ffstream(vstream);
364 2078 int ret = 0;
365 2078 AVCodecParameters *par = vstream->codecpar;
366 2078 enum AVCodecID old_codec_id = vstream->codecpar->codec_id;
367
368
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 2078 switch (flv_codecid) {
369 112 case MKBETAG('h', 'v', 'c', '1'):
370 112 par->codec_id = AV_CODEC_ID_HEVC;
371 112 vstreami->need_parsing = AVSTREAM_PARSE_HEADERS;
372 112 break;
373 65 case MKBETAG('a', 'v', '0', '1'):
374 65 par->codec_id = AV_CODEC_ID_AV1;
375 65 vstreami->need_parsing = AVSTREAM_PARSE_HEADERS;
376 65 break;
377 11 case MKBETAG('v', 'p', '0', '9'):
378 11 par->codec_id = AV_CODEC_ID_VP9;
379 11 vstreami->need_parsing = AVSTREAM_PARSE_HEADERS;
380 11 break;
381 503 case FLV_CODECID_H263:
382 503 par->codec_id = AV_CODEC_ID_FLV1;
383 503 break;
384 ✗ case FLV_CODECID_REALH263:
385 ✗ par->codec_id = AV_CODEC_ID_H263;
386 ✗ break; // Really mean it this time
387 276 case FLV_CODECID_SCREEN:
388 276 par->codec_id = AV_CODEC_ID_FLASHSV;
389 276 break;
390 200 case FLV_CODECID_SCREEN2:
391 200 par->codec_id = AV_CODEC_ID_FLASHSV2;
392 200 break;
393 174 case FLV_CODECID_VP6:
394 174 par->codec_id = AV_CODEC_ID_VP6F;
395 174 case FLV_CODECID_VP6A:
396
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 174 if (flv_codecid == FLV_CODECID_VP6A)
397 ✗ par->codec_id = AV_CODEC_ID_VP6A;
398
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 174 if (read) {
399
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 174 if (par->extradata_size != 1) {
400 1 ff_alloc_extradata(par, 1);
401 }
402
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 174 if (par->extradata)
403 174 par->extradata[0] = avio_r8(s->pb);
404 else
405 ✗ avio_skip(s->pb, 1);
406 }
407 174 ret = 1; // 1 byte body size adjustment for flv_read_packet()
408 174 break;
409 737 case FLV_CODECID_H264:
410 737 par->codec_id = AV_CODEC_ID_H264;
411 737 vstreami->need_parsing = AVSTREAM_PARSE_HEADERS;
412 737 break;
413 ✗ case FLV_CODECID_MPEG4:
414 ✗ par->codec_id = AV_CODEC_ID_MPEG4;
415 ✗ break;
416 ✗ default:
417 ✗ avpriv_request_sample(s, "Video codec (%x)", flv_codecid);
418 ✗ par->codec_tag = flv_codecid;
419 }
420
421
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 2078 if (!vstreami->need_context_update && par->codec_id != old_codec_id) {
422 ✗ avpriv_request_sample(s, "Changing the codec id midstream");
423 ✗ return AVERROR_PATCHWELCOME;
424 }
425
426 2078 return ret;
427 }
428
429 444 static int amf_get_string(AVIOContext *ioc, char *buffer, int buffsize)
430 {
431 int ret;
432 444 int length = avio_rb16(ioc);
433
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 444 if (length >= buffsize) {
434 ✗ avio_skip(ioc, length);
435 ✗ return -1;
436 }
437
438 444 ret = avio_read(ioc, buffer, length);
439
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 444 if (ret < 0)
440 ✗ return ret;
441
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 444 if (ret < length)
442 ✗ return AVERROR_INVALIDDATA;
443
444 444 buffer[length] = '\0';
445
446 444 return length;
447 }
448
449 3 static int parse_keyframes_index(AVFormatContext *s, AVIOContext *ioc, int64_t max_pos)
450 {
451 3 FLVContext *flv = s->priv_data;
452 3 unsigned int timeslen = 0, fileposlen = 0, i;
453 char str_val[256];
454 3 int64_t *times = NULL;
455 3 int64_t *filepositions = NULL;
456 3 int ret = AVERROR(ENOSYS);
457 3 int64_t initial_pos = avio_tell(ioc);
458
459
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 3 if (flv->keyframe_count > 0) {
460 ✗ av_log(s, AV_LOG_DEBUG, "keyframes have been parsed\n");
461 ✗ return 0;
462 }
463
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 3 av_assert0(!flv->keyframe_times);
464
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 3 av_assert0(!flv->keyframe_filepositions);
465
466
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 3 if (s->flags & AVFMT_FLAG_IGNIDX)
467 ✗ return 0;
468
469
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 12 while (avio_tell(ioc) < max_pos - 2 &&
470 6 amf_get_string(ioc, str_val, sizeof(str_val)) > 0) {
471 int64_t **current_array;
472 unsigned int arraylen;
473 int factor;
474
475 // Expect array object in context
476
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 6 if (avio_r8(ioc) != AMF_DATA_TYPE_ARRAY)
477 ✗ break;
478
479 6 arraylen = avio_rb32(ioc);
480
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 6 if (arraylen>>28)
481 ✗ break;
482
483
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 6 if (!strcmp(KEYFRAMES_TIMESTAMP_TAG , str_val) && !times) {
484 3 current_array = &times;
485 3 timeslen = arraylen;
486 3 factor = 1000;
487
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 3 } else if (!strcmp(KEYFRAMES_BYTEOFFSET_TAG, str_val) &&
488
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 3 !filepositions) {
489 3 current_array = &filepositions;
490 3 fileposlen = arraylen;
491 3 factor = 1;
492 } else
493 // unexpected metatag inside keyframes, will not use such
494 // metadata for indexing
495 break;
496
497
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 6 if (!(*current_array = av_mallocz(sizeof(**current_array) * arraylen))) {
498 ✗ ret = AVERROR(ENOMEM);
499 ✗ goto finish;
500 }
501
502
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 352 for (i = 0; i < arraylen && avio_tell(ioc) < max_pos - 1; i++) {
503 double d;
504
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 346 if (avio_r8(ioc) != AMF_DATA_TYPE_NUMBER)
505 ✗ goto invalid;
506 346 d = av_int2double(avio_rb64(ioc)) * factor;
507
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 346 if (isnan(d) || d < INT64_MIN || d > INT64_MAX)
508 ✗ goto invalid;
509
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 346 if (avio_feof(ioc))
510 ✗ goto invalid;
511 346 current_array[0][i] = d;
512 }
513
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 6 if (times && filepositions) {
514 // All done, exiting at a position allowing amf_parse_object
515 // to finish parsing the object
516 3 ret = 0;
517 3 break;
518 }
519 }
520
521
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 3 if (timeslen == fileposlen && fileposlen>1 && max_pos <= filepositions[0]) {
522
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 9 for (i = 0; i < FFMIN(2,fileposlen); i++) {
523 6 flv->validate_index[i].pos = filepositions[i];
524 6 flv->validate_index[i].dts = times[i];
525 6 flv->validate_count = i + 1;
526 }
527 3 flv->keyframe_times = times;
528 3 flv->keyframe_filepositions = filepositions;
529 3 flv->keyframe_count = timeslen;
530 3 times = NULL;
531 3 filepositions = NULL;
532 } else {
533 ✗ invalid:
534 ✗ av_log(s, AV_LOG_WARNING, "Invalid keyframes object, skipping.\n");
535 }
536
537 3 finish:
538 3 av_freep(&times);
539 3 av_freep(&filepositions);
540 3 avio_seek(ioc, initial_pos, SEEK_SET);
541 3 return ret;
542 }
543
544 719 static int amf_parse_object(AVFormatContext *s, AVStream *astream,
545 AVStream *vstream, const char *key,
546 int64_t max_pos, int depth)
547 {
548 AVCodecParameters *apar, *vpar;
549 719 FLVContext *flv = s->priv_data;
550 AVIOContext *ioc;
551 AMFDataType amf_type;
552 719 FLVMetaVideoColor *meta_video_color = flv->metaVideoColor;
553 char str_val[1024];
554 double num_val;
555 amf_date date;
556
557
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 719 if (depth > MAX_DEPTH)
558 ✗ return AVERROR_PATCHWELCOME;
559
560 719 num_val = 0;
561 719 ioc = s->pb;
562
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 719 if (avio_feof(ioc))
563 ✗ return AVERROR_EOF;
564 719 amf_type = avio_r8(ioc);
565
566
7/9
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 719 switch (amf_type) {
567 622 case AMF_DATA_TYPE_NUMBER:
568 622 num_val = av_int2double(avio_rb64(ioc));
569 622 break;
570 24 case AMF_DATA_TYPE_BOOL:
571 24 num_val = avio_r8(ioc);
572 24 break;
573 18 case AMF_DATA_TYPE_STRING:
574
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 18 if (amf_get_string(ioc, str_val, sizeof(str_val)) < 0) {
575 ✗ av_log(s, AV_LOG_ERROR, "AMF_DATA_TYPE_STRING parsing failed\n");
576 ✗ return -1;
577 }
578 18 break;
579 13 case AMF_DATA_TYPE_OBJECT:
580
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 13 if (key &&
581
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 13 (ioc->seekable & AVIO_SEEKABLE_NORMAL) &&
582
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 13 !strcmp(KEYFRAMES_TAG, key) && depth == 1)
583
1/2
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 3 if (parse_keyframes_index(s, ioc, max_pos) < 0)
584 ✗ av_log(s, AV_LOG_ERROR, "Keyframe index parsing failed\n");
585 else
586 3 add_keyframes_index(s);
587
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 86 while (avio_tell(ioc) < max_pos - 2 &&
588 43 amf_get_string(ioc, str_val, sizeof(str_val)) > 0)
589
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 30 if (amf_parse_object(s, astream, vstream, str_val, max_pos,
590 depth + 1) < 0)
591 ✗ return -1; // if we couldn't skip, bomb out.
592
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 13 if (avio_r8(ioc) != AMF_END_OF_OBJECT) {
593 ✗ av_log(s, AV_LOG_ERROR, "Missing AMF_END_OF_OBJECT in AMF_DATA_TYPE_OBJECT\n");
594 ✗ return -1;
595 }
596 13 break;
597 ✗ case AMF_DATA_TYPE_NULL:
598 case AMF_DATA_TYPE_UNDEFINED:
599 case AMF_DATA_TYPE_UNSUPPORTED:
600 ✗ break; // these take up no additional space
601 34 case AMF_DATA_TYPE_MIXEDARRAY:
602 {
603 unsigned v;
604 34 avio_skip(ioc, 4); // skip 32-bit max array index
605
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 678 while (avio_tell(ioc) < max_pos - 2 &&
606 339 amf_get_string(ioc, str_val, sizeof(str_val)) > 0)
607 // this is the only case in which we would want a nested
608 // parse to not skip over the object
609
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 305 if (amf_parse_object(s, astream, vstream, str_val, max_pos,
610 depth + 1) < 0)
611 ✗ return -1;
612 34 v = avio_r8(ioc);
613
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 34 if (v != AMF_END_OF_OBJECT) {
614 ✗ av_log(s, AV_LOG_ERROR, "Missing AMF_END_OF_OBJECT in AMF_DATA_TYPE_MIXEDARRAY, found %d\n", v);
615 ✗ return -1;
616 }
617 34 break;
618 }
619 7 case AMF_DATA_TYPE_ARRAY:
620 {
621 unsigned int arraylen, i;
622
623 7 arraylen = avio_rb32(ioc);
624
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 353 for (i = 0; i < arraylen && avio_tell(ioc) < max_pos - 1; i++)
625
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 346 if (amf_parse_object(s, NULL, NULL, NULL, max_pos,
626 depth + 1) < 0)
627 ✗ return -1; // if we couldn't skip, bomb out.
628 }
629 7 break;
630 1 case AMF_DATA_TYPE_DATE:
631 // timestamp (double) and UTC offset (int16)
632 1 date.milliseconds = av_int2double(avio_rb64(ioc));
633 1 date.timezone = avio_rb16(ioc);
634 1 break;
635 ✗ default: // unsupported type, we couldn't skip
636 ✗ av_log(s, AV_LOG_ERROR, "unsupported amf type %d\n", amf_type);
637 ✗ return -1;
638 }
639
640
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 719 if (key) {
641
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 373 apar = astream ? astream->codecpar : NULL;
642
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 373 vpar = vstream ? vstream->codecpar : NULL;
643
644 // stream info doesn't live any deeper than the first object
645
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 373 if (depth == 1) {
646
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 311 if (amf_type == AMF_DATA_TYPE_NUMBER ||
647 amf_type == AMF_DATA_TYPE_BOOL) {
648
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 282 if (!strcmp(key, "duration"))
649 34 s->duration = num_val * AV_TIME_BASE;
650
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 248 else if (!strcmp(key, "videodatarate") &&
651
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 28 0 <= (int)(num_val * 1024.0))
652 28 flv->video_bit_rate = num_val * 1024.0;
653
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 220 else if (!strcmp(key, "audiodatarate") &&
654
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 9 0 <= (int)(num_val * 1024.0))
655 9 flv->audio_bit_rate = num_val * 1024.0;
656
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 211 else if (!strcmp(key, "framerate")) {
657 26 flv->framerate = av_d2q(num_val, 1000);
658
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 26 if (vstream)
659 ✗ vstream->avg_frame_rate = flv->framerate;
660
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 185 } else if (flv->trust_metadata) {
661 ✗ if (!strcmp(key, "videocodecid") && vpar) {
662 ✗ int ret = flv_set_video_codec(s, vstream, num_val, 0);
663 ✗ if (ret < 0)
664 ✗ return ret;
665 ✗ } else if (!strcmp(key, "audiocodecid") && apar) {
666 ✗ int id = ((int)num_val) << FLV_AUDIO_CODECID_OFFSET;
667 ✗ flv_set_audio_codec(s, astream, apar, id);
668 ✗ } else if (!strcmp(key, "audiosamplerate") && apar) {
669 ✗ apar->sample_rate = num_val;
670 ✗ } else if (!strcmp(key, "audiosamplesize") && apar) {
671 ✗ apar->bits_per_coded_sample = num_val;
672 ✗ } else if (!strcmp(key, "stereo") && apar) {
673 ✗ av_channel_layout_default(&apar->ch_layout, num_val + 1);
674 ✗ } else if (!strcmp(key, "width") && vpar) {
675 ✗ vpar->width = num_val;
676 ✗ } else if (!strcmp(key, "height") && vpar) {
677 ✗ vpar->height = num_val;
678 ✗ } else if (!strcmp(key, "datastream")) {
679 ✗ AVStream *st = create_stream(s, AVMEDIA_TYPE_SUBTITLE);
680 ✗ if (!st)
681 ✗ return AVERROR(ENOMEM);
682 ✗ st->codecpar->codec_id = AV_CODEC_ID_TEXT;
683 }
684 }
685 }
686
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 311 if (amf_type == AMF_DATA_TYPE_STRING) {
687
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 18 if (!strcmp(key, "encoder")) {
688 3 int version = -1;
689
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 3 if (1 == sscanf(str_val, "Open Broadcaster Software v0.%d", &version)) {
690 ✗ if (version > 0 && version <= 655)
691 ✗ flv->broken_sizes = 1;
692 }
693
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 15 } else if (!strcmp(key, "metadatacreator")) {
694
1/2
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 1 if ( !strcmp (str_val, "MEGA")
695
1/2
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 1 || !strncmp(str_val, "FlixEngine", 10))
696 ✗ flv->broken_sizes = 1;
697 }
698 }
699 }
700
701
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 373 if (meta_video_color) {
702
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 28 if (amf_type == AMF_DATA_TYPE_NUMBER ||
703 amf_type == AMF_DATA_TYPE_BOOL) {
704
2/2
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 18 if (!strcmp(key, "colorPrimaries")) {
705 2 meta_video_color->primaries = num_val;
706
2/2
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✓ Branch 1 taken 14 times.
 16 } else if (!strcmp(key, "transferCharacteristics")) {
707 2 meta_video_color->transfer_characteristics = num_val;
708
2/2
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✓ Branch 1 taken 12 times.
 14 } else if (!strcmp(key, "matrixCoefficients")) {
709 2 meta_video_color->matrix_coefficients = num_val;
710
2/2
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✓ Branch 1 taken 11 times.
 12 } else if (!strcmp(key, "maxFall")) {
711 1 meta_video_color->max_fall = num_val;
712
2/2
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✓ Branch 1 taken 10 times.
 11 } else if (!strcmp(key, "maxCLL")) {
713 1 meta_video_color->max_cll = num_val;
714
2/2
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✓ Branch 1 taken 9 times.
 10 } else if (!strcmp(key, "redX")) {
715 1 meta_video_color->mastering_meta.r_x = num_val;
716
2/2
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✓ Branch 1 taken 8 times.
 9 } else if (!strcmp(key, "redY")) {
717 1 meta_video_color->mastering_meta.r_y = num_val;
718
2/2
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✓ Branch 1 taken 7 times.
 8 } else if (!strcmp(key, "greenX")) {
719 1 meta_video_color->mastering_meta.g_x = num_val;
720
2/2
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✓ Branch 1 taken 6 times.
 7 } else if (!strcmp(key, "greenY")) {
721 1 meta_video_color->mastering_meta.g_y = num_val;
722
2/2
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✓ Branch 1 taken 5 times.
 6 } else if (!strcmp(key, "blueX")) {
723 1 meta_video_color->mastering_meta.b_x = num_val;
724
2/2
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✓ Branch 1 taken 4 times.
 5 } else if (!strcmp(key, "blueY")) {
725 1 meta_video_color->mastering_meta.b_y = num_val;
726
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 4 } else if (!strcmp(key, "whitePointX")) {
727 1 meta_video_color->mastering_meta.white_x = num_val;
728
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 3 } else if (!strcmp(key, "whitePointY")) {
729 1 meta_video_color->mastering_meta.white_y = num_val;
730
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 2 } else if (!strcmp(key, "maxLuminance")) {
731 1 meta_video_color->mastering_meta.max_luminance = num_val;
732
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✗ Branch 1 not taken.
 1 } else if (!strcmp(key, "minLuminance")) {
733 1 meta_video_color->mastering_meta.min_luminance = num_val;
734 }
735 }
736 }
737
738
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 373 if (amf_type == AMF_DATA_TYPE_OBJECT && s->nb_streams == 1 &&
739
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 8 ((!apar && !strcmp(key, "audiocodecid")) ||
740
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 8 (!vpar && !strcmp(key, "videocodecid"))))
741 ✗ s->ctx_flags &= ~AVFMTCTX_NOHEADER; //If there is either audio/video missing, codecid will be an empty object
742
743
2/2
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 373 if ((!strcmp(key, "duration") ||
744
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 339 !strcmp(key, "filesize") ||
745
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 306 !strcmp(key, "width") ||
746
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 278 !strcmp(key, "height") ||
747
2/2
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 250 !strcmp(key, "videodatarate") ||
748
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 222 !strcmp(key, "framerate") ||
749
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 196 !strcmp(key, "videocodecid") ||
750
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 168 !strcmp(key, "audiodatarate") ||
751
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 159 !strcmp(key, "audiosamplerate") ||
752
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 151 !strcmp(key, "audiosamplesize") ||
753
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 143 !strcmp(key, "stereo") ||
754
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 135 !strcmp(key, "audiocodecid") ||
755
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✗ Branch 3 not taken.
 373 !strcmp(key, "datastream")) && !flv->dump_full_metadata)
756 247 return 0;
757
758 126 s->event_flags |= AVFMT_EVENT_FLAG_METADATA_UPDATED;
759
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 126 if (amf_type == AMF_DATA_TYPE_BOOL) {
760
2/2
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 16 av_strlcpy(str_val, num_val > 0 ? "true" : "false",
761 sizeof(str_val));
762 16 av_dict_set(&s->metadata, key, str_val, 0);
763
2/2
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 110 } else if (amf_type == AMF_DATA_TYPE_NUMBER) {
764 37 snprintf(str_val, sizeof(str_val), "%.f", num_val);
765 37 av_dict_set(&s->metadata, key, str_val, 0);
766
2/2
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✓ Branch 1 taken 55 times.
 73 } else if (amf_type == AMF_DATA_TYPE_STRING) {
767 18 av_dict_set(&s->metadata, key, str_val, 0);
768
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 55 } else if ( amf_type == AMF_DATA_TYPE_DATE
769
1/2
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 1 && isfinite(date.milliseconds)
770
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 1 && date.milliseconds > INT64_MIN/1000
771
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 1 && date.milliseconds < INT64_MAX/1000
772 ) {
773 // timezone is ignored, since there is no easy way to offset the UTC
774 // timestamp into the specified timezone
775 1 avpriv_dict_set_timestamp(&s->metadata, key, 1000 * (int64_t)date.milliseconds);
776 }
777 }
778
779 472 return 0;
780 }
781
782 #define TYPE_ONTEXTDATA 1
783 #define TYPE_ONCAPTION 2
784 #define TYPE_ONCAPTIONINFO 3
785 #define TYPE_UNKNOWN 9
786
787 34 static int flv_read_metabody(AVFormatContext *s, int64_t next_pos)
788 {
789 34 FLVContext *flv = s->priv_data;
790 AMFDataType type;
791 AVStream *stream, *astream, *vstream;
792 AVStream av_unused *dstream;
793 AVIOContext *ioc;
794 int i;
795 char buffer[32];
796
797 34 astream = NULL;
798 34 vstream = NULL;
799 34 dstream = NULL;
800 34 ioc = s->pb;
801
802 // first object needs to be "onMetaData" string
803 34 type = avio_r8(ioc);
804
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 68 if (type != AMF_DATA_TYPE_STRING ||
805 34 amf_get_string(ioc, buffer, sizeof(buffer)) < 0)
806 ✗ return TYPE_UNKNOWN;
807
808
1/2
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 34 if (!strcmp(buffer, "onTextData"))
809 ✗ return TYPE_ONTEXTDATA;
810
811
1/2
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 34 if (!strcmp(buffer, "onCaption"))
812 ✗ return TYPE_ONCAPTION;
813
814
1/2
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✓ Branch 1 taken 34 times.
 34 if (!strcmp(buffer, "onCaptionInfo"))
815 ✗ return TYPE_ONCAPTIONINFO;
816
817
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 34 if (strcmp(buffer, "onMetaData") && strcmp(buffer, "onCuePoint") && strcmp(buffer, "|RtmpSampleAccess")) {
818 ✗ av_log(s, AV_LOG_DEBUG, "Unknown type %s\n", buffer);
819 ✗ return TYPE_UNKNOWN;
820 }
821
822 // find the streams now so that amf_parse_object doesn't need to do
823 // the lookup every time it is called.
824
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 34 for (i = 0; i < s->nb_streams; i++) {
825 ✗ stream = s->streams[i];
826 ✗ if (stream->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
827 ✗ vstream = stream;
828 ✗ flv->last_keyframe_stream_index = i;
829 ✗ } else if (stream->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
830 ✗ astream = stream;
831 ✗ if (flv->last_keyframe_stream_index == -1)
832 ✗ flv->last_keyframe_stream_index = i;
833 ✗ } else if (stream->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
834 ✗ dstream = stream;
835 }
836
837 // parse the second object (we want a mixed array)
838
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 34 if (amf_parse_object(s, astream, vstream, buffer, next_pos, 0) < 0)
839 ✗ return -1;
840
841 34 return 0;
842 }
843
844 34 static int flv_read_header(AVFormatContext *s)
845 {
846 34 FFFormatContext *const si = ffformatcontext(s);
847 int flags;
848 34 FLVContext *flv = s->priv_data;
849 int offset;
850 34 int pre_tag_size = 0;
851
852 /* Actual FLV data at 0xe40000 in KUX file */
853
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 34 if(!strcmp(s->iformat->name, "kux"))
854 ✗ avio_skip(s->pb, 0xe40000);
855
856 34 avio_skip(s->pb, 4);
857 34 flags = avio_r8(s->pb);
858
859 34 si->missing_streams = flags & (FLV_HEADER_FLAG_HASVIDEO | FLV_HEADER_FLAG_HASAUDIO);
860
861 34 s->ctx_flags |= AVFMTCTX_NOHEADER;
862
863 34 offset = avio_rb32(s->pb);
864 34 avio_seek(s->pb, offset, SEEK_SET);
865
866 /* Annex E. The FLV File Format
867 * E.3 TheFLVFileBody
868 * Field Type Comment
869 * PreviousTagSize0 UI32 Always 0
870 * */
871 34 pre_tag_size = avio_rb32(s->pb);
872
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 34 if (pre_tag_size) {
873 ✗ av_log(s, AV_LOG_WARNING, "Read FLV header error, input file is not a standard flv format, first PreviousTagSize0 always is 0\n");
874 }
875
876 34 s->start_time = 0;
877 34 flv->sum_flv_tag_size = 0;
878 34 flv->last_keyframe_stream_index = -1;
879
880 34 return 0;
881 }
882
883 34 static int flv_read_close(AVFormatContext *s)
884 {
885 int i;
886 34 FLVContext *flv = s->priv_data;
887
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 170 for (i=0; i<FLV_STREAM_TYPE_NB; i++)
888 136 av_freep(&flv->new_extradata[i]);
889 34 av_freep(&flv->keyframe_times);
890 34 av_freep(&flv->keyframe_filepositions);
891 34 av_freep(&flv->metaVideoColor);
892 34 return 0;
893 }
894
895 10 static int flv_get_extradata(AVFormatContext *s, AVStream *st, int size)
896 {
897 int ret;
898
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 10 if (!size)
899 ✗ return 0;
900
901
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 10 if ((ret = ff_get_extradata(s, st->codecpar, s->pb, size)) < 0)
902 ✗ return ret;
903 10 ffstream(st)->need_context_update = 1;
904 10 return 0;
905 }
906
907 2 static int flv_queue_extradata(FLVContext *flv, AVIOContext *pb, int stream,
908 int size)
909 {
910
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 2 if (!size)
911 ✗ return 0;
912
913 2 av_free(flv->new_extradata[stream]);
914 2 flv->new_extradata[stream] = av_mallocz(size +
915 AV_INPUT_BUFFER_PADDING_SIZE);
916
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 2 if (!flv->new_extradata[stream])
917 ✗ return AVERROR(ENOMEM);
918 2 flv->new_extradata_size[stream] = size;
919 2 avio_read(pb, flv->new_extradata[stream], size);
920 2 return 0;
921 }
922
923 1 static void clear_index_entries(AVFormatContext *s, int64_t pos)
924 {
925 1 av_log(s, AV_LOG_WARNING,
926 "Found invalid index entries, clearing the index.\n");
927
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 2 for (unsigned i = 0; i < s->nb_streams; i++) {
928 1 FFStream *const sti = ffstream(s->streams[i]);
929 1 int out = 0;
930 /* Remove all index entries that point to >= pos */
931
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 133 for (int j = 0; j < sti->nb_index_entries; j++)
932
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 132 if (sti->index_entries[j].pos < pos)
933 1 sti->index_entries[out++] = sti->index_entries[j];
934 1 sti->nb_index_entries = out;
935 }
936 1 }
937
938 ✗ static int amf_skip_tag(AVIOContext *pb, AMFDataType type, int depth)
939 {
940 ✗ int nb = -1, ret, parse_name = 1;
941
942 ✗ if (depth > MAX_DEPTH)
943 ✗ return AVERROR_PATCHWELCOME;
944
945 ✗ if (avio_feof(pb))
946 ✗ return AVERROR_EOF;
947
948 ✗ switch (type) {
949 ✗ case AMF_DATA_TYPE_NUMBER:
950 ✗ avio_skip(pb, 8);
951 ✗ break;
952 ✗ case AMF_DATA_TYPE_BOOL:
953 ✗ avio_skip(pb, 1);
954 ✗ break;
955 ✗ case AMF_DATA_TYPE_STRING:
956 ✗ avio_skip(pb, avio_rb16(pb));
957 ✗ break;
958 ✗ case AMF_DATA_TYPE_ARRAY:
959 ✗ parse_name = 0;
960 ✗ case AMF_DATA_TYPE_MIXEDARRAY:
961 ✗ nb = avio_rb32(pb);
962 ✗ if (nb < 0)
963 ✗ return AVERROR_INVALIDDATA;
964 case AMF_DATA_TYPE_OBJECT:
965 ✗ while(!pb->eof_reached && (nb-- > 0 || type != AMF_DATA_TYPE_ARRAY)) {
966 ✗ if (parse_name) {
967 ✗ int size = avio_rb16(pb);
968 ✗ if (!size) {
969 ✗ avio_skip(pb, 1);
970 ✗ break;
971 }
972 ✗ avio_skip(pb, size);
973 }
974 ✗ if ((ret = amf_skip_tag(pb, avio_r8(pb), depth + 1)) < 0)
975 ✗ return ret;
976 }
977 ✗ break;
978 ✗ case AMF_DATA_TYPE_NULL:
979 case AMF_DATA_TYPE_OBJECT_END:
980 ✗ break;
981 ✗ default:
982 ✗ return AVERROR_INVALIDDATA;
983 }
984 ✗ return 0;
985 }
986
987 ✗ static int flv_data_packet(AVFormatContext *s, AVPacket *pkt,
988 int64_t dts, int64_t next)
989 {
990 ✗ AVIOContext *pb = s->pb;
991 ✗ AVStream *st = NULL;
992 char buf[20];
993 ✗ int ret = AVERROR_INVALIDDATA;
994 ✗ int i, length = -1;
995 ✗ int array = 0;
996
997 ✗ switch (avio_r8(pb)) {
998 ✗ case AMF_DATA_TYPE_ARRAY:
999 ✗ array = 1;
1000 ✗ case AMF_DATA_TYPE_MIXEDARRAY:
1001 ✗ avio_seek(pb, 4, SEEK_CUR);
1002 ✗ case AMF_DATA_TYPE_OBJECT:
1003 ✗ break;
1004 ✗ default:
1005 ✗ goto skip;
1006 }
1007
1008 ✗ while (array || (ret = amf_get_string(pb, buf, sizeof(buf))) > 0) {
1009 ✗ AMFDataType type = avio_r8(pb);
1010 ✗ if (type == AMF_DATA_TYPE_STRING && (array || !strcmp(buf, "text"))) {
1011 ✗ length = avio_rb16(pb);
1012 ✗ ret = av_get_packet(pb, pkt, length);
1013 ✗ if (ret < 0)
1014 ✗ goto skip;
1015 else
1016 ✗ break;
1017 } else {
1018 ✗ if ((ret = amf_skip_tag(pb, type, 0)) < 0)
1019 ✗ goto skip;
1020 }
1021 }
1022
1023 ✗ if (length < 0) {
1024 ✗ ret = AVERROR_INVALIDDATA;
1025 ✗ goto skip;
1026 }
1027
1028 ✗ for (i = 0; i < s->nb_streams; i++) {
1029 ✗ st = s->streams[i];
1030 ✗ if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
1031 ✗ break;
1032 }
1033
1034 ✗ if (i == s->nb_streams) {
1035 ✗ st = create_stream(s, AVMEDIA_TYPE_SUBTITLE);
1036 ✗ if (!st)
1037 ✗ return AVERROR(ENOMEM);
1038 ✗ st->codecpar->codec_id = AV_CODEC_ID_TEXT;
1039 }
1040
1041 ✗ pkt->dts = dts;
1042 ✗ pkt->pts = dts;
1043 ✗ pkt->size = ret;
1044
1045 ✗ pkt->stream_index = st->index;
1046 ✗ pkt->flags |= AV_PKT_FLAG_KEY;
1047
1048 ✗ skip:
1049 ✗ avio_seek(s->pb, next + 4, SEEK_SET);
1050
1051 ✗ return ret;
1052 }
1053
1054 ✗ static int resync(AVFormatContext *s)
1055 {
1056 ✗ FLVContext *flv = s->priv_data;
1057 int64_t i;
1058 ✗ int64_t pos = avio_tell(s->pb);
1059
1060 ✗ for (i=0; !avio_feof(s->pb); i++) {
1061 ✗ int j = i & (RESYNC_BUFFER_SIZE-1);
1062 ✗ int j1 = j + RESYNC_BUFFER_SIZE;
1063 ✗ flv->resync_buffer[j ] =
1064 ✗ flv->resync_buffer[j1] = avio_r8(s->pb);
1065
1066 ✗ if (i >= 8 && pos) {
1067 ✗ uint8_t *d = flv->resync_buffer + j1 - 8;
1068 ✗ if (d[0] == 'F' &&
1069 ✗ d[1] == 'L' &&
1070 ✗ d[2] == 'V' &&
1071 ✗ d[3] < 5 && d[5] == 0) {
1072 ✗ av_log(s, AV_LOG_WARNING, "Concatenated FLV detected, might fail to demux, decode and seek %"PRId64"\n", flv->last_ts);
1073 ✗ flv->time_offset = flv->last_ts + 1;
1074 ✗ flv->time_pos = avio_tell(s->pb);
1075 }
1076 }
1077
1078 ✗ if (i > 22) {
1079 ✗ unsigned lsize2 = AV_RB32(flv->resync_buffer + j1 - 4);
1080 ✗ if (lsize2 >= 11 && lsize2 + 8LL < FFMIN(i, RESYNC_BUFFER_SIZE)) {
1081 ✗ unsigned size2 = AV_RB24(flv->resync_buffer + j1 - lsize2 + 1 - 4);
1082 ✗ unsigned lsize1 = AV_RB32(flv->resync_buffer + j1 - lsize2 - 8);
1083 ✗ if (lsize1 >= 11 && lsize1 + 8LL + lsize2 < FFMIN(i, RESYNC_BUFFER_SIZE)) {
1084 ✗ unsigned size1 = AV_RB24(flv->resync_buffer + j1 - lsize1 + 1 - lsize2 - 8);
1085 ✗ if (size1 == lsize1 - 11 && size2 == lsize2 - 11) {
1086 ✗ avio_seek(s->pb, pos + i - lsize1 - lsize2 - 8, SEEK_SET);
1087 ✗ return 1;
1088 }
1089 }
1090 }
1091 }
1092 }
1093 ✗ return AVERROR_EOF;
1094 }
1095
1096 4 static int flv_parse_video_color_info(AVFormatContext *s, AVStream *st, int64_t next_pos)
1097 {
1098 4 FLVContext *flv = s->priv_data;
1099 AMFDataType type;
1100 AVIOContext *ioc;
1101 char buffer[32];
1102 4 ioc = s->pb;
1103
1104 // first object needs to be "colorInfo" string
1105 4 type = avio_r8(ioc);
1106
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 8 if (type != AMF_DATA_TYPE_STRING ||
1107 4 amf_get_string(ioc, buffer, sizeof(buffer)) < 0)
1108 ✗ return TYPE_UNKNOWN;
1109
1110
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 4 if (strcmp(buffer, "colorInfo")) {
1111 ✗ av_log(s, AV_LOG_DEBUG, "Unknown type %s\n", buffer);
1112 ✗ return TYPE_UNKNOWN;
1113 }
1114
1115 4 av_free(flv->metaVideoColor);
1116
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 4 if (!(flv->metaVideoColor = av_mallocz(sizeof(FLVMetaVideoColor)))) {
1117 ✗ return AVERROR(ENOMEM);
1118 }
1119 4 flv->meta_color_info_flag = 1;
1120 4 amf_parse_object(s, NULL, NULL, buffer, next_pos, 0); // parse metadata
1121 4 return 0;
1122 }
1123
1124 4 static int flv_update_video_color_info(AVFormatContext *s, AVStream *st)
1125 {
1126 4 FLVContext *flv = s->priv_data;
1127 4 const FLVMetaVideoColor* meta_video_color = flv->metaVideoColor;
1128 4 const FLVMasteringMeta *mastering_meta = &meta_video_color->mastering_meta;
1129
1130 int has_mastering_primaries, has_mastering_luminance;
1131 // Mastering primaries are CIE 1931 coords, and must be > 0.
1132 4 has_mastering_primaries =
1133
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 1 mastering_meta->r_x > 0 && mastering_meta->r_y > 0 &&
1134
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 1 mastering_meta->g_x > 0 && mastering_meta->g_y > 0 &&
1135
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 1 mastering_meta->b_x > 0 && mastering_meta->b_y > 0 &&
1136
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 5 mastering_meta->white_x > 0 && mastering_meta->white_y > 0;
1137
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 4 has_mastering_luminance = mastering_meta->max_luminance > 0 && mastering_meta->min_luminance > 0;
1138
1139
1/2
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 4 if (meta_video_color->matrix_coefficients != AVCOL_SPC_RESERVED)
1140 4 st->codecpar->color_space = meta_video_color->matrix_coefficients;
1141
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 4 if (meta_video_color->primaries != AVCOL_PRI_RESERVED &&
1142
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 4 meta_video_color->primaries != AVCOL_PRI_RESERVED0)
1143 2 st->codecpar->color_primaries = meta_video_color->primaries;
1144
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 4 if (meta_video_color->transfer_characteristics != AVCOL_TRC_RESERVED &&
1145
2/2
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 4 meta_video_color->transfer_characteristics != AVCOL_TRC_RESERVED0)
1146 2 st->codecpar->color_trc = meta_video_color->transfer_characteristics;
1147
1148
3/4
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 4 if (meta_video_color->max_cll && meta_video_color->max_fall) {
1149 1 size_t size = 0;
1150 1 AVContentLightMetadata *metadata = av_content_light_metadata_alloc(&size);
1151
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 1 if (!metadata)
1152 ✗ return AVERROR(ENOMEM);
1153
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 1 if (!av_packet_side_data_add(&st->codecpar->coded_side_data, &st->codecpar->nb_coded_side_data,
1154 AV_PKT_DATA_CONTENT_LIGHT_LEVEL, metadata, size, 0)) {
1155 ✗ av_freep(&metadata);
1156 ✗ return AVERROR(ENOMEM);
1157 }
1158 1 metadata->MaxCLL = meta_video_color->max_cll;
1159 1 metadata->MaxFALL = meta_video_color->max_fall;
1160 }
1161
1162
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 4 if (has_mastering_primaries || has_mastering_luminance) {
1163 AVMasteringDisplayMetadata *metadata;
1164 1 AVPacketSideData *sd = av_packet_side_data_new(&st->codecpar->coded_side_data,
1165 1 &st->codecpar->nb_coded_side_data,
1166 AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
1167 sizeof(AVMasteringDisplayMetadata), 0);
1168
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 1 if (!sd)
1169 ✗ return AVERROR(ENOMEM);
1170 1 metadata = (AVMasteringDisplayMetadata*)sd->data;
1171 1 memset(metadata, 0, sizeof(AVMasteringDisplayMetadata));
1172 // hdrCll
1173
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 1 if (has_mastering_luminance) {
1174 1 metadata->max_luminance = av_d2q(mastering_meta->max_luminance, INT_MAX);
1175 1 metadata->min_luminance = av_d2q(mastering_meta->min_luminance, INT_MAX);
1176 1 metadata->has_luminance = 1;
1177 }
1178 // hdrMdcv
1179
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 1 if (has_mastering_primaries) {
1180 1 metadata->display_primaries[0][0] = av_d2q(mastering_meta->r_x, INT_MAX);
1181 1 metadata->display_primaries[0][1] = av_d2q(mastering_meta->r_y, INT_MAX);
1182 1 metadata->display_primaries[1][0] = av_d2q(mastering_meta->g_x, INT_MAX);
1183 1 metadata->display_primaries[1][1] = av_d2q(mastering_meta->g_y, INT_MAX);
1184 1 metadata->display_primaries[2][0] = av_d2q(mastering_meta->b_x, INT_MAX);
1185 1 metadata->display_primaries[2][1] = av_d2q(mastering_meta->b_y, INT_MAX);
1186 1 metadata->white_point[0] = av_d2q(mastering_meta->white_x, INT_MAX);
1187 1 metadata->white_point[1] = av_d2q(mastering_meta->white_y, INT_MAX);
1188 1 metadata->has_primaries = 1;
1189 }
1190 }
1191 4 return 0;
1192 }
1193
1194 4856 static int flv_read_packet(AVFormatContext *s, AVPacket *pkt)
1195 {
1196 4856 FLVContext *flv = s->priv_data;
1197 int ret, i, size, flags;
1198 enum FlvTagType type;
1199 4856 int stream_type=-1;
1200 int64_t next, pos, meta_pos;
1201 4856 int64_t dts, pts = AV_NOPTS_VALUE;
1202 4856 int av_uninit(channels);
1203 4856 int av_uninit(sample_rate);
1204 4856 AVStream *st = NULL;
1205 4856 int last = -1;
1206 int orig_size;
1207 4856 int enhanced_flv = 0;
1208 4856 uint32_t video_codec_id = 0;
1209
1210 4856 retry:
1211 /* pkt size is repeated at end. skip it */
1212 4856 pos = avio_tell(s->pb);
1213 4856 type = (avio_r8(s->pb) & 0x1F);
1214 4856 orig_size =
1215 4856 size = avio_rb24(s->pb);
1216 4856 flv->sum_flv_tag_size += size + 11LL;
1217 4856 dts = avio_rb24(s->pb);
1218 4856 dts |= (unsigned)avio_r8(s->pb) << 24;
1219 4856 av_log(s, AV_LOG_TRACE, "type:%d, size:%d, last:%d, dts:%"PRId64" pos:%"PRId64"\n", type, size, last, dts, avio_tell(s->pb));
1220
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 4856 if (avio_feof(s->pb))
1221 67 return AVERROR_EOF;
1222 4789 avio_skip(s->pb, 3); /* stream id, always 0 */
1223 4789 flags = 0;
1224
1225
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 4789 if (flv->validate_next < flv->validate_count) {
1226 19 int64_t validate_pos = flv->validate_index[flv->validate_next].pos;
1227
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 19 if (pos == validate_pos) {
1228
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 5 if (FFABS(dts - flv->validate_index[flv->validate_next].dts) <=
1229 VALIDATE_INDEX_TS_THRESH) {
1230 5 flv->validate_next++;
1231 } else {
1232 ✗ clear_index_entries(s, validate_pos);
1233 ✗ flv->validate_count = 0;
1234 }
1235
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✓ Branch 1 taken 13 times.
 14 } else if (pos > validate_pos) {
1236 1 clear_index_entries(s, validate_pos);
1237 1 flv->validate_count = 0;
1238 }
1239 }
1240
1241
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 4789 if (size == 0) {
1242 ✗ ret = FFERROR_REDO;
1243 ✗ goto leave;
1244 }
1245
1246 4789 next = size + avio_tell(s->pb);
1247
1248
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 4789 if (type == FLV_TAG_TYPE_AUDIO) {
1249 2385 stream_type = FLV_STREAM_TYPE_AUDIO;
1250 2385 flags = avio_r8(s->pb);
1251 2385 size--;
1252
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 2404 } else if (type == FLV_TAG_TYPE_VIDEO) {
1253 2370 stream_type = FLV_STREAM_TYPE_VIDEO;
1254 2370 flags = avio_r8(s->pb);
1255 2370 video_codec_id = flags & FLV_VIDEO_CODECID_MASK;
1256 /*
1257 * Reference Enhancing FLV 2023-03-v1.0.0-B.8
1258 * https://github.com/veovera/enhanced-rtmp/blob/main/enhanced-rtmp-v1.pdf
1259 * */
1260 2370 enhanced_flv = (flags >> 7) & 1;
1261 2370 size--;
1262
2/2
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 2370 if (enhanced_flv) {
1263 192 video_codec_id = avio_rb32(s->pb);
1264 192 size -= 4;
1265 }
1266
1267
5/6
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 2370 if (enhanced_flv && stream_type == FLV_STREAM_TYPE_VIDEO && (flags & FLV_VIDEO_FRAMETYPE_MASK) == FLV_FRAME_VIDEO_INFO_CMD) {
1268 4 int pkt_type = flags & 0x0F;
1269
1/2
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✗ Branch 1 not taken.
 4 if (pkt_type == PacketTypeMetadata) {
1270 4 int ret = flv_parse_video_color_info(s, st, next);
1271 4 av_log(s, AV_LOG_DEBUG, "enhanced flv parse metadata ret %d and skip\n", ret);
1272 }
1273 4 goto skip;
1274
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✓ Branch 1 taken 2366 times.
 2366 } else if ((flags & FLV_VIDEO_FRAMETYPE_MASK) == FLV_FRAME_VIDEO_INFO_CMD) {
1275 ✗ goto skip;
1276 }
1277
1/2
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 34 } else if (type == FLV_TAG_TYPE_META) {
1278 34 stream_type=FLV_STREAM_TYPE_SUBTITLE;
1279
1/2
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 34 if (size > 13 + 1 + 4) { // Header-type metadata stuff
1280 int type;
1281 34 meta_pos = avio_tell(s->pb);
1282 34 type = flv_read_metabody(s, next);
1283
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 34 if (type == 0 && dts == 0 || type < 0) {
1284
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 34 if (type < 0 && flv->validate_count &&
1285 ✗ flv->validate_index[0].pos > next &&
1286 ✗ flv->validate_index[0].pos - 4 < next) {
1287 ✗ av_log(s, AV_LOG_WARNING, "Adjusting next position due to index mismatch\n");
1288 ✗ next = flv->validate_index[0].pos - 4;
1289 }
1290 34 goto skip;
1291 ✗ } else if (type == TYPE_ONTEXTDATA) {
1292 ✗ avpriv_request_sample(s, "OnTextData packet");
1293 ✗ return flv_data_packet(s, pkt, dts, next);
1294 ✗ } else if (type == TYPE_ONCAPTION) {
1295 ✗ return flv_data_packet(s, pkt, dts, next);
1296 ✗ } else if (type == TYPE_UNKNOWN) {
1297 ✗ stream_type = FLV_STREAM_TYPE_DATA;
1298 }
1299 ✗ avio_seek(s->pb, meta_pos, SEEK_SET);
1300 }
1301 } else {
1302 ✗ av_log(s, AV_LOG_DEBUG,
1303 "Skipping flv packet: type %d, size %d, flags %d.\n",
1304 type, size, flags);
1305 38 skip:
1306
1/2
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✓ Branch 2 taken 38 times.
 38 if (avio_seek(s->pb, next, SEEK_SET) != next) {
1307 // This can happen if flv_read_metabody above read past
1308 // next, on a non-seekable input, and the preceding data has
1309 // been flushed out from the IO buffer.
1310 ✗ av_log(s, AV_LOG_ERROR, "Unable to seek to the next packet\n");
1311 ✗ return AVERROR_INVALIDDATA;
1312 }
1313 38 ret = FFERROR_REDO;
1314 38 goto leave;
1315 }
1316
1317 /* skip empty data packets */
1318
1/2
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✓ Branch 1 taken 4751 times.
 4751 if (!size) {
1319 ✗ ret = FFERROR_REDO;
1320 ✗ goto leave;
1321 }
1322
1323 /* now find stream */
1324
2/2
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 6105 for (i = 0; i < s->nb_streams; i++) {
1325 6068 st = s->streams[i];
1326
2/2
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 6068 if (stream_type == FLV_STREAM_TYPE_AUDIO) {
1327
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 3730 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
1328
2/4
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 2376 (s->audio_codec_id || flv_same_audio_codec(st->codecpar, flags)))
1329 break;
1330
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 2338 } else if (stream_type == FLV_STREAM_TYPE_VIDEO) {
1331
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 2338 if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
1332
3/4
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✓ Branch 4 taken 2274 times.
 2338 (s->video_codec_id || flv_same_video_codec(st->codecpar, video_codec_id)))
1333 break;
1334 ✗ } else if (stream_type == FLV_STREAM_TYPE_SUBTITLE) {
1335 ✗ if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
1336 ✗ break;
1337 ✗ } else if (stream_type == FLV_STREAM_TYPE_DATA) {
1338 ✗ if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
1339 ✗ break;
1340 }
1341 }
1342
2/2
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 4751 if (i == s->nb_streams) {
1343 static const enum AVMediaType stream_types[] = {AVMEDIA_TYPE_VIDEO, AVMEDIA_TYPE_AUDIO, AVMEDIA_TYPE_SUBTITLE, AVMEDIA_TYPE_DATA};
1344 37 st = create_stream(s, stream_types[stream_type]);
1345
1/2
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 37 if (!st)
1346 ✗ return AVERROR(ENOMEM);
1347 }
1348 4751 av_log(s, AV_LOG_TRACE, "%d %X %d \n", stream_type, flags, st->discard);
1349
1350
1/2
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 4751 if (flv->time_pos <= pos) {
1351 4751 dts += flv->time_offset;
1352 }
1353
1354
1/2
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 4751 if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
1355
4/4
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✓ Branch 2 taken 2097 times.
✓ Branch 3 taken 1881 times.
 4751 ((flags & FLV_VIDEO_FRAMETYPE_MASK) == FLV_FRAME_KEY ||
1356 stream_type == FLV_STREAM_TYPE_AUDIO))
1357 2870 av_add_index_entry(st, pos, dts, size, 0, AVINDEX_KEYFRAME);
1358
1359
5/6
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✓ Branch 3 taken 10 times.
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✓ Branch 5 taken 278 times.
 4751 if ((st->discard >= AVDISCARD_NONKEY && !((flags & FLV_VIDEO_FRAMETYPE_MASK) == FLV_FRAME_KEY || stream_type == FLV_STREAM_TYPE_AUDIO)) ||
1360
3/6
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 4473 (st->discard >= AVDISCARD_BIDIR && ((flags & FLV_VIDEO_FRAMETYPE_MASK) == FLV_FRAME_DISP_INTER && stream_type == FLV_STREAM_TYPE_VIDEO)) ||
1361
2/2
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 4473 st->discard >= AVDISCARD_ALL) {
1362 288 avio_seek(s->pb, next, SEEK_SET);
1363 288 ret = FFERROR_REDO;
1364 288 goto leave;
1365 }
1366
1367 // if not streamed and no duration from metadata then seek to end to find
1368 // the duration from the timestamps
1369
1/2
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 4463 if ((s->pb->seekable & AVIO_SEEKABLE_NORMAL) &&
1370
2/4
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 4463 (!s->duration || s->duration == AV_NOPTS_VALUE) &&
1371 ✗ !flv->searched_for_end) {
1372 int size;
1373 ✗ const int64_t pos = avio_tell(s->pb);
1374 // Read the last 4 bytes of the file, this should be the size of the
1375 // previous FLV tag. Use the timestamp of its payload as duration.
1376 ✗ int64_t fsize = avio_size(s->pb);
1377 ✗ retry_duration:
1378 ✗ avio_seek(s->pb, fsize - 4, SEEK_SET);
1379 ✗ size = avio_rb32(s->pb);
1380 ✗ if (size > 0 && size < fsize) {
1381 // Seek to the start of the last FLV tag at position (fsize - 4 - size)
1382 // but skip the byte indicating the type.
1383 ✗ avio_seek(s->pb, fsize - 3 - size, SEEK_SET);
1384 ✗ if (size == avio_rb24(s->pb) + 11) {
1385 ✗ uint32_t ts = avio_rb24(s->pb);
1386 ✗ ts |= (unsigned)avio_r8(s->pb) << 24;
1387 ✗ if (ts)
1388 ✗ s->duration = ts * (int64_t)AV_TIME_BASE / 1000;
1389 ✗ else if (fsize >= 8 && fsize - 8 >= size) {
1390 ✗ fsize -= size+4;
1391 ✗ goto retry_duration;
1392 }
1393 }
1394 }
1395
1396 ✗ avio_seek(s->pb, pos, SEEK_SET);
1397 ✗ flv->searched_for_end = 1;
1398 }
1399
1400
2/2
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 4463 if (stream_type == FLV_STREAM_TYPE_AUDIO) {
1401 int bits_per_coded_sample;
1402
2/2
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✓ Branch 1 taken 1698 times.
 2385 channels = (flags & FLV_AUDIO_CHANNEL_MASK) == FLV_STEREO ? 2 : 1;
1403 2385 sample_rate = 44100 << ((flags & FLV_AUDIO_SAMPLERATE_MASK) >>
1404 FLV_AUDIO_SAMPLERATE_OFFSET) >> 3;
1405
1/2
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 2385 bits_per_coded_sample = (flags & FLV_AUDIO_SAMPLESIZE_MASK) ? 16 : 8;
1406
2/2
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✓ Branch 2 taken 9 times.
 2385 if (!av_channel_layout_check(&st->codecpar->ch_layout) ||
1407
1/2
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 2376 !st->codecpar->sample_rate ||
1408
1/2
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✓ Branch 1 taken 2376 times.
 2376 !st->codecpar->bits_per_coded_sample) {
1409 9 av_channel_layout_default(&st->codecpar->ch_layout, channels);
1410 9 st->codecpar->sample_rate = sample_rate;
1411 9 st->codecpar->bits_per_coded_sample = bits_per_coded_sample;
1412 }
1413
2/2
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 2385 if (!st->codecpar->codec_id) {
1414 9 flv_set_audio_codec(s, st, st->codecpar,
1415 flags & FLV_AUDIO_CODECID_MASK);
1416 9 flv->last_sample_rate =
1417 9 sample_rate = st->codecpar->sample_rate;
1418 9 flv->last_channels =
1419 9 channels = st->codecpar->ch_layout.nb_channels;
1420 } else {
1421 2376 AVCodecParameters *par = avcodec_parameters_alloc();
1422
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2376 times.
 2376 if (!par) {
1423 ✗ ret = AVERROR(ENOMEM);
1424 ✗ goto leave;
1425 }
1426 2376 par->sample_rate = sample_rate;
1427 2376 par->bits_per_coded_sample = bits_per_coded_sample;
1428 2376 flv_set_audio_codec(s, st, par, flags & FLV_AUDIO_CODECID_MASK);
1429 2376 sample_rate = par->sample_rate;
1430 2376 avcodec_parameters_free(&par);
1431 }
1432
1/2
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✗ Branch 1 not taken.
 2078 } else if (stream_type == FLV_STREAM_TYPE_VIDEO) {
1433 2078 int ret = flv_set_video_codec(s, st, video_codec_id, 1);
1434
1/2
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✓ Branch 1 taken 2078 times.
 2078 if (ret < 0)
1435 ✗ return ret;
1436 2078 size -= ret;
1437 ✗ } else if (stream_type == FLV_STREAM_TYPE_SUBTITLE) {
1438 ✗ st->codecpar->codec_id = AV_CODEC_ID_TEXT;
1439 ✗ } else if (stream_type == FLV_STREAM_TYPE_DATA) {
1440 ✗ st->codecpar->codec_id = AV_CODEC_ID_NONE; // Opaque AMF data
1441 }
1442
1443
2/2
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 4463 if (st->codecpar->codec_id == AV_CODEC_ID_AAC ||
1444
2/2
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✓ Branch 1 taken 737 times.
 4064 st->codecpar->codec_id == AV_CODEC_ID_H264 ||
1445
1/2
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✗ Branch 1 not taken.
 3327 st->codecpar->codec_id == AV_CODEC_ID_MPEG4 ||
1446
2/2
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 3327 st->codecpar->codec_id == AV_CODEC_ID_HEVC ||
1447
2/2
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✓ Branch 1 taken 65 times.
 3215 st->codecpar->codec_id == AV_CODEC_ID_AV1 ||
1448
2/2
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✓ Branch 1 taken 3139 times.
 3150 st->codecpar->codec_id == AV_CODEC_ID_VP9) {
1449 1324 int type = 0;
1450
3/4
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✓ Branch 1 taken 1136 times.
✓ Branch 2 taken 188 times.
✗ Branch 3 not taken.
 1324 if (enhanced_flv && stream_type == FLV_STREAM_TYPE_VIDEO) {
1451 188 type = flags & 0x0F;
1452 } else {
1453 1136 type = avio_r8(s->pb);
1454 1136 size--;
1455 }
1456
1457
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1324 times.
 1324 if (size < 0) {
1458 ✗ ret = AVERROR_INVALIDDATA;
1459 ✗ goto leave;
1460 }
1461
1462
5/6
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✗ Branch 3 not taken.
✓ Branch 4 taken 4 times.
✓ Branch 5 taken 184 times.
 1324 if (enhanced_flv && stream_type == FLV_STREAM_TYPE_VIDEO && flv->meta_color_info_flag) {
1463 4 flv_update_video_color_info(s, st); // update av packet side data
1464 4 flv->meta_color_info_flag = 0;
1465 }
1466
1467
3/4
✓ Branch 0 taken 587 times.
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✓ Branch 2 taken 587 times.
✗ Branch 3 not taken.
 1324 if (st->codecpar->codec_id == AV_CODEC_ID_H264 || st->codecpar->codec_id == AV_CODEC_ID_MPEG4 ||
1468
4/4
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✓ Branch 1 taken 475 times.
✓ Branch 2 taken 106 times.
✓ Branch 3 taken 6 times.
 587 (st->codecpar->codec_id == AV_CODEC_ID_HEVC && type == PacketTypeCodedFrames)) {
1469 // sign extension
1470 843 int32_t cts = (avio_rb24(s->pb) + 0xff800000) ^ 0xff800000;
1471 843 pts = av_sat_add64(dts, cts);
1472
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 843 times.
 843 if (cts < 0) { // dts might be wrong
1473 ✗ if (!flv->wrong_dts)
1474 ✗ av_log(s, AV_LOG_WARNING,
1475 "Negative cts, previous timestamps might be wrong.\n");
1476 ✗ flv->wrong_dts = 1;
1477
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 843 times.
 843 } else if (FFABS(dts - pts) > 1000*60*15) {
1478 ✗ av_log(s, AV_LOG_WARNING,
1479 "invalid timestamps %"PRId64" %"PRId64"\n", dts, pts);
1480 ✗ dts = pts = AV_NOPTS_VALUE;
1481 }
1482 843 size -= 3;
1483 }
1484
6/6
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✓ Branch 2 taken 2 times.
✓ Branch 3 taken 10 times.
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✓ Branch 5 taken 1 times.
 1324 if (type == 0 && (!st->codecpar->extradata || st->codecpar->codec_id == AV_CODEC_ID_AAC ||
1485
1/4
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 1 st->codecpar->codec_id == AV_CODEC_ID_H264 || st->codecpar->codec_id == AV_CODEC_ID_HEVC ||
1486 ✗ st->codecpar->codec_id == AV_CODEC_ID_AV1 || st->codecpar->codec_id == AV_CODEC_ID_VP9)) {
1487 AVDictionaryEntry *t;
1488
1489
2/2
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✓ Branch 1 taken 10 times.
 12 if (st->codecpar->extradata) {
1490
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 2 times.
 2 if ((ret = flv_queue_extradata(flv, s->pb, stream_type, size)) < 0)
1491 ✗ return ret;
1492 2 ret = FFERROR_REDO;
1493 2 goto leave;
1494 }
1495
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 10 times.
 10 if ((ret = flv_get_extradata(s, st, size)) < 0)
1496 ✗ return ret;
1497
1498 /* Workaround for buggy Omnia A/XE encoder */
1499 10 t = av_dict_get(s->metadata, "Encoder", NULL, 0);
1500
3/6
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✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
✗ Branch 4 not taken.
✗ Branch 5 not taken.
 10 if (st->codecpar->codec_id == AV_CODEC_ID_AAC && t && !strcmp(t->value, "Omnia A/XE"))
1501 ✗ st->codecpar->extradata_size = 2;
1502
1503 10 ret = FFERROR_REDO;
1504 10 goto leave;
1505 }
1506 }
1507
1508 /* skip empty data packets */
1509
2/2
✓ Branch 0 taken 4 times.
✓ Branch 1 taken 4447 times.
 4451 if (!size) {
1510 4 ret = FFERROR_REDO;
1511 4 goto leave;
1512 }
1513
1514 4447 ret = av_get_packet(s->pb, pkt, size);
1515
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 4447 times.
 4447 if (ret < 0)
1516 ✗ return ret;
1517 4447 pkt->dts = dts;
1518
2/2
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✓ Branch 1 taken 834 times.
 4447 pkt->pts = pts == AV_NOPTS_VALUE ? dts : pts;
1519 4447 pkt->stream_index = st->index;
1520 4447 pkt->pos = pos;
1521
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 4445 times.
 4447 if (flv->new_extradata[stream_type]) {
1522 2 int ret = av_packet_add_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
1523 flv->new_extradata[stream_type],
1524 2 flv->new_extradata_size[stream_type]);
1525
1/2
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✗ Branch 1 not taken.
 2 if (ret >= 0) {
1526 2 flv->new_extradata[stream_type] = NULL;
1527 2 flv->new_extradata_size[stream_type] = 0;
1528 }
1529 }
1530
2/2
✓ Branch 0 taken 2382 times.
✓ Branch 1 taken 2065 times.
 4447 if (stream_type == FLV_STREAM_TYPE_AUDIO &&
1531
1/2
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✗ Branch 1 not taken.
 2382 (sample_rate != flv->last_sample_rate ||
1532
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2382 times.
 2382 channels != flv->last_channels)) {
1533 ✗ flv->last_sample_rate = sample_rate;
1534 ✗ flv->last_channels = channels;
1535 ✗ ff_add_param_change(pkt, channels, 0, sample_rate, 0, 0);
1536 }
1537
1538
2/2
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✓ Branch 1 taken 2382 times.
 4447 if (stream_type == FLV_STREAM_TYPE_AUDIO ||
1539
3/4
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✓ Branch 2 taken 1603 times.
✗ Branch 3 not taken.
 2065 (flags & FLV_VIDEO_FRAMETYPE_MASK) == FLV_FRAME_KEY ||
1540
1/2
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✗ Branch 1 not taken.
 1603 stream_type == FLV_STREAM_TYPE_SUBTITLE ||
1541 stream_type == FLV_STREAM_TYPE_DATA)
1542 2844 pkt->flags |= AV_PKT_FLAG_KEY;
1543
1544 1603 leave:
1545 4789 last = avio_rb32(s->pb);
1546
1/2
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✗ Branch 1 not taken.
 4789 if (!flv->trust_datasize) {
1547
4/6
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✓ Branch 5 taken 1 times.
 4790 if (last != orig_size + 11 && last != orig_size + 10 &&
1548
0/2
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✗ Branch 2 not taken.
 1 !avio_feof(s->pb) &&
1549 ✗ (last != orig_size || !last) && last != flv->sum_flv_tag_size &&
1550 ✗ !flv->broken_sizes) {
1551 ✗ av_log(s, AV_LOG_ERROR, "Packet mismatch %d %d %"PRId64"\n", last, orig_size + 11, flv->sum_flv_tag_size);
1552 ✗ avio_seek(s->pb, pos + 1, SEEK_SET);
1553 ✗ ret = resync(s);
1554 ✗ av_packet_unref(pkt);
1555 ✗ if (ret >= 0) {
1556 ✗ goto retry;
1557 }
1558 }
1559 }
1560
1561
2/2
✓ Branch 0 taken 4447 times.
✓ Branch 1 taken 342 times.
 4789 if (ret >= 0)
1562 4447 flv->last_ts = pkt->dts;
1563
1564 4789 return ret;
1565 }
1566
1567 289 static int flv_read_seek(AVFormatContext *s, int stream_index,
1568 int64_t ts, int flags)
1569 {
1570 289 FLVContext *flv = s->priv_data;
1571 289 flv->validate_count = 0;
1572 289 return avio_seek_time(s->pb, stream_index, ts, flags);
1573 }
1574
1575 #define OFFSET(x) offsetof(FLVContext, x)
1576 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
1577 static const AVOption options[] = {
1578 { "flv_metadata", "Allocate streams according to the onMetaData array", OFFSET(trust_metadata), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
1579 { "flv_full_metadata", "Dump full metadata of the onMetadata", OFFSET(dump_full_metadata), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
1580 { "flv_ignore_prevtag", "Ignore the Size of previous tag", OFFSET(trust_datasize), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, VD },
1581 { NULL }
1582 };
1583
1584 static const AVClass flv_kux_class = {
1585 .class_name = "(live) flv/kux demuxer",
1586 .item_name = av_default_item_name,
1587 .option = options,
1588 .version = LIBAVUTIL_VERSION_INT,
1589 };
1590
1591 const FFInputFormat ff_flv_demuxer = {
1592 .p.name = "flv",
1593 .p.long_name = NULL_IF_CONFIG_SMALL("FLV (Flash Video)"),
1594 .p.extensions = "flv",
1595 .p.priv_class = &flv_kux_class,
1596 .priv_data_size = sizeof(FLVContext),
1597 .read_probe = flv_probe,
1598 .read_header = flv_read_header,
1599 .read_packet = flv_read_packet,
1600 .read_seek = flv_read_seek,
1601 .read_close = flv_read_close,
1602 };
1603
1604 const FFInputFormat ff_live_flv_demuxer = {
1605 .p.name = "live_flv",
1606 .p.long_name = NULL_IF_CONFIG_SMALL("live RTMP FLV (Flash Video)"),
1607 .p.extensions = "flv",
1608 .p.priv_class = &flv_kux_class,
1609 .p.flags = AVFMT_TS_DISCONT,
1610 .priv_data_size = sizeof(FLVContext),
1611 .read_probe = live_flv_probe,
1612 .read_header = flv_read_header,
1613 .read_packet = flv_read_packet,
1614 .read_seek = flv_read_seek,
1615 .read_close = flv_read_close,
1616 };
1617
1618 const FFInputFormat ff_kux_demuxer = {
1619 .p.name = "kux",
1620 .p.long_name = NULL_IF_CONFIG_SMALL("KUX (YouKu)"),
1621 .p.extensions = "kux",
1622 .p.priv_class = &flv_kux_class,
1623 .priv_data_size = sizeof(FLVContext),
1624 .read_probe = kux_probe,
1625 .read_header = flv_read_header,
1626 .read_packet = flv_read_packet,
1627 .read_seek = flv_read_seek,
1628 .read_close = flv_read_close,
1629 };
1630