FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavformat/wavdec.c
Date: 2026-04-29 17:33:30
Exec Total Coverage
Lines: 360 578 62.3%
Functions: 16 17 94.1%
Branches: 209 448 46.7%
Line Branch Exec Source
1 /*
2 * WAV demuxer
3 * Copyright (c) 2001, 2002 Fabrice Bellard
4 *
5 * Sony Wave64 demuxer
6 * RF64 demuxer
7 * Copyright (c) 2009 Daniel Verkamp
8 *
9 * BW64 demuxer
10 *
11 * This file is part of FFmpeg.
12 *
13 * FFmpeg is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU Lesser General Public
15 * License as published by the Free Software Foundation; either
16 * version 2.1 of the License, or (at your option) any later version.
17 *
18 * FFmpeg is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 * Lesser General Public License for more details.
22 *
23 * You should have received a copy of the GNU Lesser General Public
24 * License along with FFmpeg; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 */
27
28 #include <stdint.h>
29
30 #include "config_components.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/dict.h"
33 #include "libavutil/intreadwrite.h"
34 #include "libavutil/log.h"
35 #include "libavutil/mathematics.h"
36 #include "libavutil/mem.h"
37 #include "libavutil/opt.h"
38 #include "libavcodec/internal.h"
39 #include "avformat.h"
40 #include "avio.h"
41 #include "avio_internal.h"
42 #include "demux.h"
43 #include "id3v2.h"
44 #include "internal.h"
45 #include "metadata.h"
46 #include "pcm.h"
47 #include "riff.h"
48 #include "w64.h"
49 #include "spdif.h"
50
51 typedef struct WAVDemuxContext {
52 const AVClass *class;
53 int64_t data_end;
54 int w64;
55 AVStream *vst;
56 int64_t smv_data_ofs;
57 int smv_block_size;
58 int smv_frames_per_jpeg;
59 int smv_block;
60 int smv_last_stream;
61 int smv_eof;
62 int audio_eof;
63 int ignore_length;
64 int max_size;
65 int spdif;
66 int smv_given_first;
67 int unaligned; // e.g. if an odd number of bytes ID3 tag was prepended
68 int rifx; // RIFX: integer byte order for parameters is big endian
69 } WAVDemuxContext;
70
71 #define OFFSET(x) offsetof(WAVDemuxContext, x)
72 #define DEC AV_OPT_FLAG_DECODING_PARAM
73 static const AVOption demux_options[] = {
74 #define W64_DEMUXER_OPTIONS_OFFSET (1 * CONFIG_WAV_DEMUXER)
75 #if CONFIG_WAV_DEMUXER
76 { "ignore_length", "Ignore length", OFFSET(ignore_length), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, DEC },
77 #endif
78 { "max_size", "max size of single packet", OFFSET(max_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1 << 22, DEC },
79 { NULL },
80 };
81
82 578 static void set_max_size(AVStream *st, WAVDemuxContext *wav)
83 {
84
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 578 if (wav->max_size <= 0) {
85 571 int max_size = ff_pcm_default_packet_size(st->codecpar);
86
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 571 wav->max_size = max_size < 0 ? 4096 : max_size;
87 }
88 578 }
89
90 578 static void set_spdif(AVFormatContext *s, WAVDemuxContext *wav)
91 {
92
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 578 if (CONFIG_SPDIF_DEMUXER && s->streams[0]->codecpar->codec_tag == 1) {
93 enum AVCodecID codec;
94 538 int len = 1<<16;
95 538 int ret = ffio_ensure_seekback(s->pb, len);
96
97
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 538 if (ret >= 0) {
98 538 uint8_t *buf = av_malloc(len + AV_INPUT_BUFFER_PADDING_SIZE);
99
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 538 if (!buf) {
100 ✗ ret = AVERROR(ENOMEM);
101 } else {
102 538 int64_t pos = avio_tell(s->pb);
103 538 len = ret = avio_read(s->pb, buf, len);
104
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 538 if (len >= 0) {
105 538 ret = ff_spdif_probe(buf, len, &codec);
106
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 538 if (ret > AVPROBE_SCORE_EXTENSION) {
107 1 s->streams[0]->codecpar->codec_id = codec;
108 1 wav->spdif = 1;
109 }
110 }
111 538 avio_seek(s->pb, pos, SEEK_SET);
112 538 av_free(buf);
113 }
114 }
115
116
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 538 if (ret < 0)
117 ✗ av_log(s, AV_LOG_WARNING, "Cannot check for SPDIF\n");
118 }
119 578 }
120
121 #if CONFIG_WAV_DEMUXER
122
123 1451 static int64_t next_tag(AVIOContext *pb, uint32_t *tag, int big_endian)
124 {
125 1451 *tag = avio_rl32(pb);
126
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 1451 if (!big_endian) {
127 1451 return avio_rl32(pb);
128 } else {
129 ✗ return avio_rb32(pb);
130 }
131 }
132
133 /* RIFF chunks are always at even offsets relative to where they start. */
134 875 static int64_t wav_seek_tag(WAVDemuxContext * wav, AVIOContext *s, int64_t offset, int whence)
135 {
136
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 875 offset += offset < INT64_MAX && offset + wav->unaligned & 1;
137
138 875 return avio_seek(s, offset, whence);
139 }
140
141 /* return the size of the found tag */
142 240 static int64_t find_tag(WAVDemuxContext * wav, AVIOContext *pb, uint32_t tag1)
143 {
144 unsigned int tag;
145 int64_t size;
146
147 for (;;) {
148
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 464 if (avio_feof(pb))
149 240 return AVERROR_EOF;
150 224 size = next_tag(pb, &tag, wav->rifx);
151
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 224 if (tag == tag1)
152 ✗ break;
153 224 wav_seek_tag(wav, pb, size, SEEK_CUR);
154 }
155 ✗ return size;
156 }
157
158 7480 static int wav_probe(const AVProbeData *p)
159 {
160 /* check file header */
161
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 7480 if (p->buf_size <= 32)
162 1 return 0;
163
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 7479 if (!memcmp(p->buf + 8, "WAVE", 4)) {
164
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 493 if (!memcmp(p->buf, "RIFF", 4) || !memcmp(p->buf, "RIFX", 4))
165 /* Since the ACT demuxer has a standard WAV header at the top of
166 * its own, the returned score is decreased to avoid a probe
167 * conflict between ACT and WAV. */
168 493 return AVPROBE_SCORE_MAX - 1;
169 ✗ else if ((!memcmp(p->buf, "RF64", 4) ||
170 ✗ !memcmp(p->buf, "BW64", 4)) &&
171 ✗ !memcmp(p->buf + 12, "ds64", 4))
172 ✗ return AVPROBE_SCORE_MAX;
173 }
174 6986 return 0;
175 }
176
177 578 static void handle_stream_probing(AVStream *st)
178 {
179
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 578 if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S16LE) {
180 521 FFStream *const sti = ffstream(st);
181 521 sti->request_probe = AVPROBE_SCORE_EXTENSION + 1;
182 521 sti->probe_packets = FFMIN(sti->probe_packets, 32);
183 }
184 578 }
185
186 576 static int wav_parse_fmt_tag(AVFormatContext *s, int64_t size, AVStream *st)
187 {
188 576 AVIOContext *pb = s->pb;
189 576 WAVDemuxContext *wav = s->priv_data;
190 int ret;
191
192 /* parse fmt header */
193 576 ret = ff_get_wav_header(s, pb, st->codecpar, size, wav->rifx);
194
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 576 if (ret < 0)
195 ✗ return ret;
196 576 handle_stream_probing(st);
197
198 576 ffstream(st)->need_parsing = AVSTREAM_PARSE_FULL_RAW;
199
200 576 avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
201
202 576 return 0;
203 }
204
205 ✗ static int wav_parse_xma2_tag(AVFormatContext *s, int64_t size, AVStream *st)
206 {
207 ✗ AVIOContext *pb = s->pb;
208 ✗ int version, num_streams, i, channels = 0, ret;
209
210 ✗ if (size < 36)
211 ✗ return AVERROR_INVALIDDATA;
212
213 ✗ st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
214 ✗ st->codecpar->codec_id = AV_CODEC_ID_XMA2;
215 ✗ ffstream(st)->need_parsing = AVSTREAM_PARSE_FULL_RAW;
216
217 ✗ version = avio_r8(pb);
218 ✗ if (version != 3 && version != 4)
219 ✗ return AVERROR_INVALIDDATA;
220 ✗ num_streams = avio_r8(pb);
221 ✗ if (size != (32 + ((version==3)?0:8) + 4*num_streams))
222 ✗ return AVERROR_INVALIDDATA;
223 ✗ avio_skip(pb, 10);
224 ✗ st->codecpar->sample_rate = avio_rb32(pb);
225 ✗ if (version == 4)
226 ✗ avio_skip(pb, 8);
227 ✗ avio_skip(pb, 4);
228 ✗ st->duration = avio_rb32(pb);
229 ✗ avio_skip(pb, 8);
230
231 ✗ for (i = 0; i < num_streams; i++) {
232 ✗ channels += avio_r8(pb);
233 ✗ avio_skip(pb, 3);
234 }
235 ✗ av_channel_layout_uninit(&st->codecpar->ch_layout);
236 ✗ st->codecpar->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC;
237 ✗ st->codecpar->ch_layout.nb_channels = channels;
238
239 ✗ if (st->codecpar->ch_layout.nb_channels <= 0 || st->codecpar->sample_rate <= 0)
240 ✗ return AVERROR_INVALIDDATA;
241
242 ✗ avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
243
244 ✗ avio_seek(pb, -size, SEEK_CUR);
245 ✗ if ((ret = ff_get_extradata(s, st->codecpar, pb, size)) < 0)
246 ✗ return ret;
247
248 ✗ return 0;
249 }
250
251 15 static inline int wav_parse_bext_string(AVFormatContext *s, const char *key,
252 int length)
253 {
254 char temp[257];
255 int ret;
256
257
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 15 av_assert0(length < sizeof(temp));
258
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 15 if ((ret = ffio_read_size(s->pb, temp, length)) < 0)
259 ✗ return ret;
260
261 15 temp[length] = 0;
262
263
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 15 if (strlen(temp))
264 9 return av_dict_set(&s->metadata, key, temp, 0);
265
266 6 return 0;
267 }
268
269 3 static int wav_parse_bext_tag(AVFormatContext *s, int64_t size)
270 {
271 char temp[131], *coding_history;
272 int ret, x;
273 uint64_t time_reference;
274 3 int64_t umid_parts[8], umid_mask = 0;
275
276
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 6 if ((ret = wav_parse_bext_string(s, "description", 256)) < 0 ||
277
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 6 (ret = wav_parse_bext_string(s, "originator", 32)) < 0 ||
278
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 6 (ret = wav_parse_bext_string(s, "originator_reference", 32)) < 0 ||
279
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 6 (ret = wav_parse_bext_string(s, "origination_date", 10)) < 0 ||
280 3 (ret = wav_parse_bext_string(s, "origination_time", 8)) < 0)
281 ✗ return ret;
282
283 3 time_reference = avio_rl64(s->pb);
284 3 snprintf(temp, sizeof(temp), "%"PRIu64, time_reference);
285
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 3 if ((ret = av_dict_set(&s->metadata, "time_reference", temp, 0)) < 0)
286 ✗ return ret;
287
288 /* check if version is >= 1, in which case an UMID may be present */
289
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 3 if (avio_rl16(s->pb) >= 1) {
290 ✗ for (x = 0; x < 8; x++)
291 ✗ umid_mask |= umid_parts[x] = avio_rb64(s->pb);
292
293 ✗ if (umid_mask) {
294 /* the string formatting below is per SMPTE 330M-2004 Annex C */
295 ✗ if (umid_parts[4] == 0 && umid_parts[5] == 0 &&
296 ✗ umid_parts[6] == 0 && umid_parts[7] == 0) {
297 /* basic UMID */
298 ✗ snprintf(temp, sizeof(temp),
299 "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
300 umid_parts[0], umid_parts[1],
301 umid_parts[2], umid_parts[3]);
302 } else {
303 /* extended UMID */
304 ✗ snprintf(temp, sizeof(temp),
305 "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64
306 "%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
307 umid_parts[0], umid_parts[1],
308 umid_parts[2], umid_parts[3],
309 umid_parts[4], umid_parts[5],
310 umid_parts[6], umid_parts[7]);
311 }
312
313 ✗ if ((ret = av_dict_set(&s->metadata, "umid", temp, 0)) < 0)
314 ✗ return ret;
315 }
316
317 ✗ avio_skip(s->pb, 190);
318 } else
319 3 avio_skip(s->pb, 254);
320
321
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 3 if (size > 602) {
322 /* CodingHistory present */
323 3 size -= 602;
324
325
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 3 if (!(coding_history = av_malloc(size + 1)))
326 ✗ return AVERROR(ENOMEM);
327
328
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 3 if ((ret = ffio_read_size(s->pb, coding_history, size)) < 0) {
329 ✗ av_free(coding_history);
330 ✗ return ret;
331 }
332
333 3 coding_history[size] = 0;
334
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 3 if ((ret = av_dict_set(&s->metadata, "coding_history", coding_history,
335 AV_DICT_DONT_STRDUP_VAL)) < 0)
336 ✗ return ret;
337 }
338
339 3 return 0;
340 }
341
342 static const AVMetadataConv wav_metadata_conv[] = {
343 { "description", "comment" },
344 { "originator", "encoded_by" },
345 { "origination_date", "date" },
346 { "origination_time", "creation_time" },
347 { 0 },
348 };
349
350 /* wav input */
351 576 static int wav_read_header(AVFormatContext *s)
352 {
353 576 int64_t size, av_uninit(data_size);
354 576 int64_t sample_count = 0;
355 576 int rf64 = 0, bw64 = 0;
356 uint32_t tag;
357 576 AVIOContext *pb = s->pb;
358 576 AVStream *st = NULL;
359 576 WAVDemuxContext *wav = s->priv_data;
360 576 int ret, got_fmt = 0, got_xma2 = 0;
361 576 int64_t next_tag_ofs, data_ofs = -1;
362
363 576 wav->unaligned = avio_tell(s->pb) & 1;
364
365 576 wav->smv_data_ofs = -1;
366
367 /* read chunk ID */
368 576 tag = avio_rl32(pb);
369
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 576 switch (tag) {
370 576 case MKTAG('R', 'I', 'F', 'F'):
371 576 break;
372 ✗ case MKTAG('R', 'I', 'F', 'X'):
373 ✗ wav->rifx = 1;
374 ✗ break;
375 ✗ case MKTAG('R', 'F', '6', '4'):
376 ✗ rf64 = 1;
377 ✗ break;
378 ✗ case MKTAG('B', 'W', '6', '4'):
379 ✗ bw64 = 1;
380 ✗ break;
381 ✗ default:
382 ✗ av_log(s, AV_LOG_ERROR, "invalid start code %s in RIFF header\n",
383 ✗ av_fourcc2str(tag));
384 ✗ return AVERROR_INVALIDDATA;
385 }
386
387 /* read chunk size */
388 576 avio_rl32(pb);
389
390 /* read format */
391
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 576 if (avio_rl32(pb) != MKTAG('W', 'A', 'V', 'E')) {
392 ✗ av_log(s, AV_LOG_ERROR, "invalid format in RIFF header\n");
393 ✗ return AVERROR_INVALIDDATA;
394 }
395
396
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 576 if (rf64 || bw64) {
397 ✗ if (avio_rl32(pb) != MKTAG('d', 's', '6', '4'))
398 ✗ return AVERROR_INVALIDDATA;
399 ✗ size = avio_rl32(pb);
400 ✗ if (size < 24)
401 ✗ return AVERROR_INVALIDDATA;
402 ✗ avio_rl64(pb); /* RIFF size */
403
404 ✗ data_size = avio_rl64(pb);
405 ✗ sample_count = avio_rl64(pb);
406
407 ✗ if (data_size < 0 || sample_count < 0) {
408 ✗ av_log(s, AV_LOG_ERROR, "negative data_size and/or sample_count in "
409 "ds64: data_size = %"PRId64", sample_count = %"PRId64"\n",
410 data_size, sample_count);
411 ✗ return AVERROR_INVALIDDATA;
412 }
413 ✗ avio_skip(pb, size - 24); /* skip rest of ds64 chunk */
414
415 }
416
417 /* Create the audio stream now so that its index is always zero */
418 576 st = avformat_new_stream(s, NULL);
419
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 576 if (!st)
420 ✗ return AVERROR(ENOMEM);
421
422 651 for (;;) {
423 AVStream *vst;
424 1227 size = next_tag(pb, &tag, wav->rifx);
425 1227 next_tag_ofs = avio_tell(pb) + size;
426
427
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 1227 if (avio_feof(pb))
428 2 break;
429
430
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 1225 switch (tag) {
431 576 case MKTAG('f', 'm', 't', ' '):
432 /* only parse the first 'fmt ' tag found */
433
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 576 if (!got_xma2 && !got_fmt && (ret = wav_parse_fmt_tag(s, size, st)) < 0) {
434 ✗ return ret;
435
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 576 } else if (got_fmt)
436 ✗ av_log(s, AV_LOG_WARNING, "found more than one 'fmt ' tag\n");
437
438 576 got_fmt = 1;
439 576 break;
440 ✗ case MKTAG('X', 'M', 'A', '2'):
441 /* only parse the first 'XMA2' tag found */
442 ✗ if (!got_fmt && !got_xma2 && (ret = wav_parse_xma2_tag(s, size, st)) < 0) {
443 ✗ return ret;
444 ✗ } else if (got_xma2)
445 ✗ av_log(s, AV_LOG_WARNING, "found more than one 'XMA2' tag\n");
446
447 ✗ got_xma2 = 1;
448 ✗ break;
449 576 case MKTAG('d', 'a', 't', 'a'):
450
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 576 if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) && !got_fmt && !got_xma2) {
451 ✗ av_log(s, AV_LOG_ERROR,
452 "found no 'fmt ' tag before the 'data' tag\n");
453 ✗ return AVERROR_INVALIDDATA;
454 }
455
456
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 576 if (rf64 || bw64) {
457 ✗ next_tag_ofs = wav->data_end = av_sat_add64(avio_tell(pb), data_size);
458
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 576 } else if (size != 0xFFFFFFFF) {
459 576 data_size = size;
460
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 576 next_tag_ofs = wav->data_end = size ? next_tag_ofs : INT64_MAX;
461 } else {
462 ✗ av_log(s, AV_LOG_WARNING, "Ignoring maximum wav data size, "
463 "file may be invalid\n");
464 ✗ data_size = 0;
465 ✗ next_tag_ofs = wav->data_end = INT64_MAX;
466 }
467
468 576 data_ofs = avio_tell(pb);
469
470 /* don't look for footer metadata if we can't seek or if we don't
471 * know where the data tag ends
472 */
473
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 576 if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) || (!(rf64 && !bw64) && !size))
474 ✗ goto break_loop;
475 576 break;
476 43 case MKTAG('f', 'a', 'c', 't'):
477
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 43 if (!sample_count)
478
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 43 sample_count = (!wav->rifx ? avio_rl32(pb) : avio_rb32(pb));
479 43 break;
480 3 case MKTAG('b', 'e', 'x', 't'):
481
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 3 if ((ret = wav_parse_bext_tag(s, size)) < 0)
482 ✗ return ret;
483 3 break;
484 1 case MKTAG('S','M','V','0'):
485
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 1 if (!got_fmt) {
486 ✗ av_log(s, AV_LOG_ERROR, "found no 'fmt ' tag before the 'SMV0' tag\n");
487 ✗ return AVERROR_INVALIDDATA;
488 }
489 // SMV file, a wav file with video appended.
490
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 1 if (size != MKTAG('0','2','0','0')) {
491 ✗ av_log(s, AV_LOG_ERROR, "Unknown SMV version found\n");
492 ✗ goto break_loop;
493 }
494 1 av_log(s, AV_LOG_DEBUG, "Found SMV data\n");
495 1 wav->smv_given_first = 0;
496 1 vst = avformat_new_stream(s, NULL);
497
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 1 if (!vst)
498 ✗ return AVERROR(ENOMEM);
499 1 wav->vst = vst;
500 1 avio_r8(pb);
501 1 vst->id = 1;
502 1 vst->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
503 1 vst->codecpar->codec_id = AV_CODEC_ID_SMVJPEG;
504 1 vst->codecpar->width = avio_rl24(pb);
505 1 vst->codecpar->height = avio_rl24(pb);
506
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 1 if ((ret = ff_alloc_extradata(vst->codecpar, 4)) < 0) {
507 ✗ av_log(s, AV_LOG_ERROR, "Could not allocate extradata.\n");
508 ✗ return ret;
509 }
510 1 size = avio_rl24(pb);
511 1 wav->smv_data_ofs = avio_tell(pb) + (size - 5) * 3;
512 1 avio_rl24(pb);
513 1 wav->smv_block_size = avio_rl24(pb);
514
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 1 if (!wav->smv_block_size)
515 ✗ return AVERROR_INVALIDDATA;
516 1 avpriv_set_pts_info(vst, 32, 1, avio_rl24(pb));
517 1 vst->duration = avio_rl24(pb);
518 1 avio_rl24(pb);
519 1 avio_rl24(pb);
520 1 wav->smv_frames_per_jpeg = avio_rl24(pb);
521
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 1 if (wav->smv_frames_per_jpeg > 65536) {
522 ✗ av_log(s, AV_LOG_ERROR, "too many frames per jpeg\n");
523 ✗ return AVERROR_INVALIDDATA;
524 }
525 1 AV_WL32(vst->codecpar->extradata, wav->smv_frames_per_jpeg);
526 1 goto break_loop;
527 22 case MKTAG('L', 'I', 'S', 'T'):
528 case MKTAG('l', 'i', 's', 't'):
529
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 22 if (size < 4) {
530 ✗ av_log(s, AV_LOG_ERROR, "too short LIST tag\n");
531 ✗ return AVERROR_INVALIDDATA;
532 }
533
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 22 switch (avio_rl32(pb)) {
534 19 case MKTAG('I', 'N', 'F', 'O'):
535 19 ff_read_riff_info(s, size - 4);
536 19 break;
537 3 case MKTAG('a', 'd', 't', 'l'):
538
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 3 if (s->nb_chapters > 0) {
539
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 33 while (avio_tell(pb) < next_tag_ofs &&
540 15 !avio_feof(pb)) {
541 char cue_label[512];
542 unsigned id, sub_size;
543
544
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 15 if (avio_rl32(pb) != MKTAG('l', 'a', 'b', 'l'))
545 ✗ break;
546
547 15 sub_size = avio_rl32(pb);
548
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 15 if (sub_size < 5)
549 ✗ break;
550 15 id = avio_rl32(pb);
551 15 avio_get_str(pb, sub_size - 4, cue_label, sizeof(cue_label));
552 15 avio_skip(pb, avio_tell(pb) & 1);
553
554
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 45 for (int i = 0; i < s->nb_chapters; i++) {
555
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 45 if (s->chapters[i]->id == id) {
556 15 av_dict_set(&s->chapters[i]->metadata, "title", cue_label, 0);
557 15 break;
558 }
559 }
560 }
561 }
562 3 break;
563 }
564 22 break;
565 ✗ case MKTAG('I', 'D', '3', ' '):
566 case MKTAG('i', 'd', '3', ' '): {
567 ID3v2ExtraMeta *id3v2_extra_meta;
568 ✗ ff_id3v2_read(s, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta, 0);
569 ✗ if (id3v2_extra_meta) {
570 ✗ ff_id3v2_parse_apic(s, id3v2_extra_meta);
571 ✗ ff_id3v2_parse_chapters(s, id3v2_extra_meta);
572 ✗ ff_id3v2_parse_priv(s, id3v2_extra_meta);
573 }
574 ✗ ff_id3v2_free_extra_meta(&id3v2_extra_meta);
575 }
576 ✗ break;
577 3 case MKTAG('c', 'u', 'e', ' '):
578
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 3 if (size >= 4 && got_fmt && st->codecpar->sample_rate > 0) {
579 3 AVRational tb = {1, st->codecpar->sample_rate};
580 3 unsigned nb_cues = avio_rl32(pb);
581
582
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 3 if (size >= nb_cues * 24LL + 4LL) {
583
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 18 for (int i = 0; i < nb_cues; i++) {
584 15 unsigned offset, id = avio_rl32(pb);
585
586
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 15 if (avio_feof(pb))
587 ✗ return AVERROR_INVALIDDATA;
588
589 15 avio_skip(pb, 16);
590 15 offset = avio_rl32(pb);
591
592
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 15 if (!avpriv_new_chapter(s, id, tb, offset, AV_NOPTS_VALUE, NULL))
593 ✗ return AVERROR(ENOMEM);
594 }
595 }
596 }
597 3 break;
598 }
599
600 /* seek to next tag unless we know that we'll run into EOF */
601
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 1875 if ((avio_size(pb) > 0 && next_tag_ofs >= avio_size(pb)) ||
602 651 wav_seek_tag(wav, pb, next_tag_ofs, SEEK_SET) < 0) {
603 break;
604 }
605 }
606
607 573 break_loop:
608
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 576 if (!got_fmt && !got_xma2) {
609 ✗ av_log(s, AV_LOG_ERROR, "no 'fmt ' or 'XMA2' tag found\n");
610 ✗ return AVERROR_INVALIDDATA;
611 }
612
613
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 576 if (data_ofs < 0) {
614 ✗ av_log(s, AV_LOG_ERROR, "no 'data' tag found\n");
615 ✗ return AVERROR_INVALIDDATA;
616 }
617
618 576 avio_seek(pb, data_ofs, SEEK_SET);
619
620
1/2
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 576 if (data_size > (INT64_MAX>>3)) {
621 ✗ av_log(s, AV_LOG_WARNING, "Data size %"PRId64" is too large\n", data_size);
622 ✗ data_size = 0;
623 }
624
625
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 576 if ( st->codecpar->bit_rate > 0 && data_size > 0
626
1/2
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 576 && st->codecpar->sample_rate > 0
627
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 576 && sample_count > 0 && st->codecpar->ch_layout.nb_channels > 1
628
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 30 && sample_count % st->codecpar->ch_layout.nb_channels == 0) {
629 30 if (fabs(8.0 * data_size * st->codecpar->ch_layout.nb_channels * st->codecpar->sample_rate /
630
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 30 sample_count /st->codecpar->bit_rate - 1.0) < 0.3)
631 ✗ sample_count /= st->codecpar->ch_layout.nb_channels;
632 }
633
634
4/6
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 576 if (data_size > 0 && sample_count && st->codecpar->ch_layout.nb_channels &&
635
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 42 (data_size << 3) / sample_count / st->codecpar->ch_layout.nb_channels > st->codecpar->bits_per_coded_sample + 1) {
636 ✗ av_log(s, AV_LOG_WARNING, "ignoring wrong sample_count %"PRId64"\n", sample_count);
637 ✗ sample_count = 0;
638 }
639
640 /* G.729 hack (for Ticket4577)
641 * FIXME: Come up with cleaner, more general solution */
642
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 576 if (st->codecpar->codec_id == AV_CODEC_ID_G729 && sample_count && (data_size << 3) > sample_count) {
643 ✗ av_log(s, AV_LOG_WARNING, "ignoring wrong sample_count %"PRId64"\n", sample_count);
644 ✗ sample_count = 0;
645 }
646
647
4/4
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 576 if (!sample_count || av_get_exact_bits_per_sample(st->codecpar->codec_id) > 0)
648
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 557 if ( st->codecpar->ch_layout.nb_channels
649
1/2
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 557 && data_size
650
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 557 && av_get_bits_per_sample(st->codecpar->codec_id)
651
2/2
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✓ Branch 2 taken 3 times.
 551 && wav->data_end <= avio_size(pb))
652 1096 sample_count = (data_size << 3)
653 548 /
654 548 (st->codecpar->ch_layout.nb_channels * (uint64_t)av_get_bits_per_sample(st->codecpar->codec_id));
655
656
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 576 if (sample_count)
657 567 st->duration = sample_count;
658
659
2/2
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 576 if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S32LE &&
660
1/2
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 3 st->codecpar->block_align == st->codecpar->ch_layout.nb_channels * 4 &&
661
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 3 st->codecpar->bits_per_coded_sample == 32 &&
662
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 3 st->codecpar->extradata_size == 2 &&
663 ✗ AV_RL16(st->codecpar->extradata) == 1) {
664 ✗ st->codecpar->codec_id = AV_CODEC_ID_PCM_F16LE;
665 ✗ st->codecpar->bits_per_coded_sample = 16;
666
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 576 } else if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE &&
667
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 11 st->codecpar->block_align == st->codecpar->ch_layout.nb_channels * 4 &&
668 ✗ st->codecpar->bits_per_coded_sample == 24) {
669 ✗ st->codecpar->codec_id = AV_CODEC_ID_PCM_F24LE;
670
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 576 } else if (st->codecpar->codec_id == AV_CODEC_ID_XMA1 ||
671
1/2
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 576 st->codecpar->codec_id == AV_CODEC_ID_XMA2) {
672 ✗ st->codecpar->block_align = 2048;
673
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✓ Branch 3 taken 4 times.
 576 } else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS && st->codecpar->ch_layout.nb_channels > 2 &&
674 ✗ st->codecpar->block_align < INT_MAX / st->codecpar->ch_layout.nb_channels) {
675 ✗ st->codecpar->block_align *= st->codecpar->ch_layout.nb_channels;
676 }
677
678 576 ff_metadata_conv_ctx(s, NULL, wav_metadata_conv);
679 576 ff_metadata_conv_ctx(s, NULL, ff_riff_info_conv);
680
681 576 set_spdif(s, wav);
682 576 set_max_size(st, wav);
683
684 576 return 0;
685 }
686
687 /**
688 * Find chunk with w64 GUID by skipping over other chunks.
689 * @return the size of the found chunk
690 */
691 6 static int64_t find_guid(AVIOContext *pb, const uint8_t guid1[16])
692 {
693 uint8_t guid[16];
694 int64_t size;
695
696
2/2
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✓ Branch 2 taken 4 times.
 6 while (!avio_feof(pb)) {
697
1/2
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✗ Branch 2 not taken.
 2 if (avio_read(pb, guid, 16) != 16)
698 2 break;
699 ✗ size = avio_rl64(pb);
700 ✗ if (size <= 24 || size > INT64_MAX - 8)
701 ✗ return AVERROR_INVALIDDATA;
702 ✗ if (!memcmp(guid, guid1, 16))
703 ✗ return size;
704 ✗ avio_skip(pb, FFALIGN(size, INT64_C(8)) - 24);
705 }
706 6 return AVERROR_EOF;
707 }
708
709 35921 static int wav_read_packet(AVFormatContext *s, AVPacket *pkt)
710 {
711 int ret, size;
712 int64_t left;
713 35921 WAVDemuxContext *wav = s->priv_data;
714 35921 AVStream *st = s->streams[0];
715
716
2/2
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✓ Branch 1 taken 35876 times.
 35921 if (CONFIG_SPDIF_DEMUXER && wav->spdif == 1)
717 45 return ff_spdif_read_packet(s, pkt);
718
719
2/2
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✓ Branch 1 taken 35808 times.
 35876 if (wav->smv_data_ofs > 0) {
720 int64_t audio_dts, video_dts;
721 68 AVStream *vst = wav->vst;
722 68 smv_retry:
723 69 audio_dts = (int32_t)ffstream( st)->cur_dts;
724 69 video_dts = (int32_t)ffstream(vst)->cur_dts;
725
726
2/4
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✗ Branch 3 not taken.
 69 if (audio_dts != AV_NOPTS_VALUE && video_dts != AV_NOPTS_VALUE) {
727 /*We always return a video frame first to get the pixel format first*/
728 138 wav->smv_last_stream = wav->smv_given_first ?
729 68 av_compare_ts(video_dts, vst->time_base,
730
4/4
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✓ Branch 3 taken 3 times.
 137 audio_dts, st->time_base) > 0 : 0;
731 69 wav->smv_given_first = 1;
732 }
733 69 wav->smv_last_stream = !wav->smv_last_stream;
734 69 wav->smv_last_stream |= wav->audio_eof;
735 69 wav->smv_last_stream &= !wav->smv_eof;
736
2/2
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✓ Branch 1 taken 66 times.
 69 if (wav->smv_last_stream) {
737 3 uint64_t old_pos = avio_tell(s->pb);
738 3 uint64_t new_pos = wav->smv_data_ofs +
739 3 wav->smv_block * (int64_t)wav->smv_block_size;
740
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 3 times.
 3 if (avio_seek(s->pb, new_pos, SEEK_SET) < 0) {
741 ✗ ret = AVERROR_EOF;
742 ✗ goto smv_out;
743 }
744 3 size = avio_rl24(s->pb);
745
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3 times.
 3 if (size > wav->smv_block_size) {
746 ✗ ret = AVERROR_EOF;
747 ✗ goto smv_out;
748 }
749 3 ret = av_get_packet(s->pb, pkt, size);
750
2/2
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✓ Branch 1 taken 2 times.
 3 if (ret < 0)
751 1 goto smv_out;
752 2 pkt->pos -= 3;
753 2 pkt->pts = wav->smv_block * wav->smv_frames_per_jpeg;
754 2 pkt->duration = wav->smv_frames_per_jpeg;
755 2 wav->smv_block++;
756
757 2 pkt->stream_index = vst->index;
758 3 smv_out:
759 3 avio_seek(s->pb, old_pos, SEEK_SET);
760
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 2 times.
 3 if (ret == AVERROR_EOF) {
761 1 wav->smv_eof = 1;
762 1 goto smv_retry;
763 }
764 2 return ret;
765 }
766 }
767
768 35874 left = wav->data_end - avio_tell(s->pb);
769
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 35874 if (wav->ignore_length)
770 ✗ left = INT_MAX;
771
2/2
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 35874 if (left <= 0) {
772
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 246 if (CONFIG_W64_DEMUXER && wav->w64)
773 6 left = find_guid(s->pb, ff_w64_guid_data) - 24;
774 else
775 240 left = find_tag(wav, s->pb, MKTAG('d', 'a', 't', 'a'));
776
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 246 if (left < 0) {
777 246 wav->audio_eof = 1;
778
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✓ Branch 3 taken 1 times.
 246 if (wav->smv_data_ofs > 0 && !wav->smv_eof)
779 ✗ goto smv_retry;
780 246 return AVERROR_EOF;
781 }
782 ✗ if (INT64_MAX - left < avio_tell(s->pb))
783 ✗ return AVERROR_INVALIDDATA;
784 ✗ wav->data_end = avio_tell(s->pb) + left;
785 }
786
787 35628 size = wav->max_size;
788
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 35628 if (st->codecpar->block_align > 1) {
789
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 35144 if (size < st->codecpar->block_align)
790 ✗ size = st->codecpar->block_align;
791 35144 size = (size / st->codecpar->block_align) * st->codecpar->block_align;
792 }
793 35628 size = FFMIN(size, left);
794 35628 ret = av_get_packet(s->pb, pkt, size);
795
2/2
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✓ Branch 1 taken 35617 times.
 35628 if (ret < 0)
796 11 return ret;
797 35617 pkt->stream_index = 0;
798
799 35617 return ret;
800 }
801
802 409 static int wav_read_seek(AVFormatContext *s,
803 int stream_index, int64_t timestamp, int flags)
804 {
805 409 WAVDemuxContext *wav = s->priv_data;
806 409 AVStream *ast = s->streams[0], *vst = wav->vst;
807 409 wav->smv_eof = 0;
808 409 wav->audio_eof = 0;
809
810
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 409 if (stream_index != 0 && (!vst || stream_index != vst->index))
811 ✗ return AVERROR(EINVAL);
812
1/2
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 409 if (wav->smv_data_ofs > 0) {
813 ✗ int64_t smv_timestamp = timestamp;
814 ✗ if (stream_index == 0)
815 ✗ smv_timestamp = av_rescale_q(timestamp, ast->time_base, vst->time_base);
816 else
817 ✗ timestamp = av_rescale_q(smv_timestamp, vst->time_base, ast->time_base);
818 ✗ if (wav->smv_frames_per_jpeg > 0) {
819 ✗ wav->smv_block = smv_timestamp / wav->smv_frames_per_jpeg;
820 }
821 }
822
823
1/2
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✓ Branch 1 taken 409 times.
 409 switch (ast->codecpar->codec_id) {
824 ✗ case AV_CODEC_ID_MP2:
825 case AV_CODEC_ID_MP3:
826 case AV_CODEC_ID_AC3:
827 case AV_CODEC_ID_DTS:
828 case AV_CODEC_ID_XMA2:
829 /* use generic seeking with dynamically generated indexes */
830 ✗ return -1;
831 409 default:
832 409 break;
833 }
834 409 return ff_pcm_read_seek(s, 0, timestamp, flags);
835 }
836
837 static const AVClass wav_demuxer_class = {
838 .class_name = "WAV demuxer",
839 .item_name = av_default_item_name,
840 .option = demux_options,
841 .version = LIBAVUTIL_VERSION_INT,
842 };
843 const FFInputFormat ff_wav_demuxer = {
844 .p.name = "wav",
845 .p.long_name = NULL_IF_CONFIG_SMALL("WAV / WAVE (Waveform Audio)"),
846 .p.flags = AVFMT_GENERIC_INDEX,
847 .p.codec_tag = ff_wav_codec_tags_list,
848 .p.priv_class = &wav_demuxer_class,
849 .priv_data_size = sizeof(WAVDemuxContext),
850 .read_probe = wav_probe,
851 .read_header = wav_read_header,
852 .read_packet = wav_read_packet,
853 .read_seek = wav_read_seek,
854 };
855 #endif /* CONFIG_WAV_DEMUXER */
856
857 #if CONFIG_W64_DEMUXER
858 7480 static int w64_probe(const AVProbeData *p)
859 {
860
2/2
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 7480 if (p->buf_size <= 40)
861 3 return 0;
862
2/2
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✓ Branch 1 taken 7475 times.
 7477 if (!memcmp(p->buf, ff_w64_guid_riff, 16) &&
863
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 2 !memcmp(p->buf + 24, ff_w64_guid_wave, 16))
864 2 return AVPROBE_SCORE_MAX;
865 else
866 7475 return 0;
867 }
868
869 2 static int w64_read_header(AVFormatContext *s)
870 {
871 2 int64_t size, data_ofs = 0;
872 2 AVIOContext *pb = s->pb;
873 2 WAVDemuxContext *wav = s->priv_data;
874 AVStream *st;
875 uint8_t guid[16];
876 2 int ret = ffio_read_size(pb, guid, 16);
877
878
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 2 if (ret < 0)
879 ✗ return ret;
880
881
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 2 if (memcmp(guid, ff_w64_guid_riff, 16))
882 ✗ return AVERROR_INVALIDDATA;
883
884 /* riff + wave + fmt + sizes */
885
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 2 if (avio_rl64(pb) < 16 + 8 + 16 + 8 + 16 + 8)
886 ✗ return AVERROR_INVALIDDATA;
887
888 2 ret = ffio_read_size(pb, guid, 16);
889
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 2 if (ret < 0)
890 ✗ return ret;
891
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 2 if (memcmp(guid, ff_w64_guid_wave, 16)) {
892 ✗ av_log(s, AV_LOG_ERROR, "could not find wave guid\n");
893 ✗ return AVERROR_INVALIDDATA;
894 }
895
896 2 wav->w64 = 1;
897
898 2 st = avformat_new_stream(s, NULL);
899
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 2 if (!st)
900 ✗ return AVERROR(ENOMEM);
901
902
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 6 while (!avio_feof(pb)) {
903
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 6 if (avio_read(pb, guid, 16) != 16)
904 2 break;
905 4 size = avio_rl64(pb);
906
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 4 if (size <= 24 || INT64_MAX - size < avio_tell(pb)) {
907 ✗ if (data_ofs)
908 ✗ break;
909 ✗ return AVERROR_INVALIDDATA;
910 }
911
912
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 4 if (!memcmp(guid, ff_w64_guid_fmt, 16)) {
913 /* subtract chunk header size - normal wav file doesn't count it */
914 2 ret = ff_get_wav_header(s, pb, st->codecpar, size - 24, 0);
915
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 2 if (ret < 0)
916 ✗ return ret;
917 2 avio_skip(pb, FFALIGN(size, INT64_C(8)) - size);
918
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 2 if (st->codecpar->block_align &&
919
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 2 st->codecpar->ch_layout.nb_channels < FF_SANE_NB_CHANNELS &&
920
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 2 st->codecpar->bits_per_coded_sample < 128) {
921 2 int64_t block_align = st->codecpar->block_align;
922
923 2 block_align = FFMAX(block_align,
924 ((st->codecpar->bits_per_coded_sample + 7LL) / 8) *
925 st->codecpar->ch_layout.nb_channels);
926
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 2 if (block_align > st->codecpar->block_align) {
927 ✗ av_log(s, AV_LOG_WARNING, "invalid block_align: %d, broken file.\n",
928 ✗ st->codecpar->block_align);
929 ✗ st->codecpar->block_align = block_align;
930 }
931 }
932 2 avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
933
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 2 } else if (!memcmp(guid, ff_w64_guid_fact, 16)) {
934 int64_t samples;
935
936 ✗ samples = avio_rl64(pb);
937 ✗ if (samples > 0)
938 ✗ st->duration = samples;
939 ✗ avio_skip(pb, FFALIGN(size, INT64_C(8)) - 32);
940
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 2 } else if (!memcmp(guid, ff_w64_guid_data, 16)) {
941 2 wav->data_end = avio_tell(pb) + size - 24;
942
943 2 data_ofs = avio_tell(pb);
944
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 2 if (!(pb->seekable & AVIO_SEEKABLE_NORMAL))
945 ✗ break;
946
947 2 avio_skip(pb, size - 24);
948 ✗ } else if (!memcmp(guid, ff_w64_guid_summarylist, 16)) {
949 int64_t start, end, cur;
950 uint32_t count, chunk_size, i;
951 ✗ int64_t filesize = avio_size(s->pb);
952
953 ✗ start = avio_tell(pb);
954 ✗ end = start + FFALIGN(size, INT64_C(8)) - 24;
955 ✗ count = avio_rl32(pb);
956
957 ✗ for (i = 0; i < count; i++) {
958 char chunk_key[5], *value;
959
960 ✗ if (avio_feof(pb) || (cur = avio_tell(pb)) < 0 || cur > end - 8 /* = tag + size */)
961 break;
962
963 ✗ chunk_key[4] = 0;
964 ✗ avio_read(pb, chunk_key, 4);
965 ✗ chunk_size = avio_rl32(pb);
966 ✗ if (chunk_size == UINT32_MAX || (filesize >= 0 && chunk_size > filesize))
967 ✗ return AVERROR_INVALIDDATA;
968
969 ✗ value = av_malloc(chunk_size + 1);
970 ✗ if (!value)
971 ✗ return AVERROR(ENOMEM);
972
973 ✗ ret = avio_get_str16le(pb, chunk_size, value, chunk_size);
974 ✗ if (ret < 0) {
975 ✗ av_free(value);
976 ✗ return ret;
977 }
978 ✗ avio_skip(pb, chunk_size - ret);
979
980 ✗ av_dict_set(&s->metadata, chunk_key, value, AV_DICT_DONT_STRDUP_VAL);
981 }
982
983 ✗ avio_skip(pb, end - avio_tell(pb));
984 } else {
985 ✗ av_log(s, AV_LOG_DEBUG, "unknown guid: "FF_PRI_GUID"\n", FF_ARG_GUID(guid));
986 ✗ avio_skip(pb, FFALIGN(size, INT64_C(8)) - 24);
987 }
988 }
989
990
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 2 if (!data_ofs)
991 ✗ return AVERROR_EOF;
992
993 2 ff_metadata_conv_ctx(s, NULL, wav_metadata_conv);
994 2 ff_metadata_conv_ctx(s, NULL, ff_riff_info_conv);
995
996 2 handle_stream_probing(st);
997 2 ffstream(st)->need_parsing = AVSTREAM_PARSE_FULL_RAW;
998
999 2 avio_seek(pb, data_ofs, SEEK_SET);
1000
1001 2 set_spdif(s, wav);
1002 2 set_max_size(st, wav);
1003
1004 2 return 0;
1005 }
1006
1007 static const AVClass w64_demuxer_class = {
1008 .class_name = "W64 demuxer",
1009 .item_name = av_default_item_name,
1010 .option = &demux_options[W64_DEMUXER_OPTIONS_OFFSET],
1011 .version = LIBAVUTIL_VERSION_INT,
1012 };
1013
1014 const FFInputFormat ff_w64_demuxer = {
1015 .p.name = "w64",
1016 .p.long_name = NULL_IF_CONFIG_SMALL("Sony Wave64"),
1017 .p.flags = AVFMT_GENERIC_INDEX,
1018 .p.codec_tag = ff_wav_codec_tags_list,
1019 .p.priv_class = &w64_demuxer_class,
1020 .priv_data_size = sizeof(WAVDemuxContext),
1021 .flags_internal = FF_INFMT_FLAG_ID3V2_AUTO,
1022 .read_probe = w64_probe,
1023 .read_header = w64_read_header,
1024 .read_packet = wav_read_packet,
1025 .read_seek = wav_read_seek,
1026 };
1027 #endif /* CONFIG_W64_DEMUXER */
1028