FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavformat/wavdec.c
Date: 2026-07-18 19:31:15
Exec Total Coverage
Lines: 368 585 62.9%
Functions: 16 17 94.1%
Branches: 217 452 48.0%
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
82 611 static void set_max_size(AVStream *st, WAVDemuxContext *wav)
83 {
84
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 611 if (wav->max_size <= 0) {
85 604 int max_size = ff_pcm_default_packet_size(st->codecpar);
86
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 604 wav->max_size = max_size < 0 ? 4096 : max_size;
87 }
88 611 }
89
90 611 static void set_spdif(AVFormatContext *s, WAVDemuxContext *wav)
91 {
92
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 611 if (CONFIG_SPDIF_DEMUXER && s->streams[0]->codecpar->codec_tag == 1) {
93 enum AVCodecID codec;
94 565 int len = 1<<16;
95 565 int ret = ffio_ensure_seekback(s->pb, len);
96
97
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 565 if (ret >= 0) {
98 565 uint8_t *buf = av_malloc(len + AV_INPUT_BUFFER_PADDING_SIZE);
99
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 565 if (!buf) {
100 ✗ ret = AVERROR(ENOMEM);
101 } else {
102 565 int64_t pos = avio_tell(s->pb);
103 565 len = ret = avio_read(s->pb, buf, len);
104
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 565 if (len >= 0) {
105 563 ret = ff_spdif_probe(buf, len, &codec);
106
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 563 if (ret > AVPROBE_SCORE_EXTENSION) {
107 1 s->streams[0]->codecpar->codec_id = codec;
108 1 wav->spdif = 1;
109 }
110 }
111 565 avio_seek(s->pb, pos, SEEK_SET);
112 565 av_free(buf);
113 }
114 }
115
116
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 565 if (ret < 0)
117 2 av_log(s, AV_LOG_WARNING, "Cannot check for SPDIF\n");
118 }
119 611 }
120
121 #if CONFIG_WAV_DEMUXER
122
123 1585 static int64_t next_tag(AVIOContext *pb, uint32_t *tag, int big_endian)
124 {
125 1585 *tag = avio_rl32(pb);
126
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 1585 if (!big_endian) {
127 1585 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. */
134 693 static int64_t wav_seek_tag(WAVDemuxContext * wav, AVIOContext *s, int64_t offset)
135 {
136
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 693 offset += offset < INT64_MAX && offset + wav->unaligned & 1;
137
138 693 return avio_seek(s, offset, SEEK_SET);
139 }
140
141 /* return the size of the found tag */
142 300 static int64_t find_tag(WAVDemuxContext * wav, AVIOContext *pb, uint32_t tag1)
143 {
144 unsigned int tag;
145 int64_t size;
146
147
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 300 if (avio_tell(pb) + wav->unaligned & 1)
148 2 avio_skip(pb, 1);
149
150 for (;;) {
151
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 583 if (avio_feof(pb))
152 300 return AVERROR_EOF;
153 283 size = next_tag(pb, &tag, wav->rifx);
154
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 283 if (tag == tag1)
155 ✗ break;
156 283 avio_skip(pb, size + (size & 1));
157 }
158 ✗ return size;
159 }
160
161 7778 static int wav_probe(const AVProbeData *p)
162 {
163 /* check file header */
164
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 7778 if (p->buf_size <= 32)
165 1 return 0;
166
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 7777 if (!memcmp(p->buf + 8, "WAVE", 4)) {
167
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 525 if (!memcmp(p->buf, "RIFF", 4) || !memcmp(p->buf, "RIFX", 4))
168 /* Since the ACT demuxer has a standard WAV header at the top of
169 * its own, the returned score is decreased to avoid a probe
170 * conflict between ACT and WAV. */
171 525 return AVPROBE_SCORE_MAX - 1;
172 ✗ else if ((!memcmp(p->buf, "RF64", 4) ||
173 ✗ !memcmp(p->buf, "BW64", 4)) &&
174 ✗ !memcmp(p->buf + 12, "ds64", 4))
175 ✗ return AVPROBE_SCORE_MAX;
176 }
177 7252 return 0;
178 }
179
180 611 static void handle_stream_probing(AVStream *st)
181 {
182
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 611 if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S16LE) {
183 544 FFStream *const sti = ffstream(st);
184 544 sti->request_probe = AVPROBE_SCORE_EXTENSION + 1;
185 544 sti->probe_packets = FFMIN(sti->probe_packets, 32);
186 }
187 611 }
188
189 609 static int wav_parse_fmt_tag(AVFormatContext *s, int64_t size, AVStream *st)
190 {
191 609 AVIOContext *pb = s->pb;
192 609 WAVDemuxContext *wav = s->priv_data;
193 int ret;
194
195 /* parse fmt header */
196 609 ret = ff_get_wav_header(s, pb, st->codecpar, size, wav->rifx);
197
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 609 if (ret < 0)
198 ✗ return ret;
199 609 handle_stream_probing(st);
200
201 609 ffstream(st)->need_parsing = AVSTREAM_PARSE_FULL_RAW;
202
203 609 avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
204
205 609 return 0;
206 }
207
208 ✗ static int wav_parse_xma2_tag(AVFormatContext *s, int64_t size, AVStream *st)
209 {
210 ✗ AVIOContext *pb = s->pb;
211 ✗ int version, num_streams, i, channels = 0, ret;
212
213 ✗ if (size < 36)
214 ✗ return AVERROR_INVALIDDATA;
215
216 ✗ st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
217 ✗ st->codecpar->codec_id = AV_CODEC_ID_XMA2;
218 ✗ ffstream(st)->need_parsing = AVSTREAM_PARSE_FULL_RAW;
219
220 ✗ version = avio_r8(pb);
221 ✗ if (version != 3 && version != 4)
222 ✗ return AVERROR_INVALIDDATA;
223 ✗ num_streams = avio_r8(pb);
224 ✗ if (size != (32 + ((version==3)?0:8) + 4*num_streams))
225 ✗ return AVERROR_INVALIDDATA;
226 ✗ avio_skip(pb, 10);
227 ✗ st->codecpar->sample_rate = avio_rb32(pb);
228 ✗ if (version == 4)
229 ✗ avio_skip(pb, 8);
230 ✗ avio_skip(pb, 4);
231 ✗ st->duration = avio_rb32(pb);
232 ✗ avio_skip(pb, 8);
233
234 ✗ for (i = 0; i < num_streams; i++) {
235 ✗ channels += avio_r8(pb);
236 ✗ avio_skip(pb, 3);
237 }
238 ✗ av_channel_layout_uninit(&st->codecpar->ch_layout);
239 ✗ st->codecpar->ch_layout.order = AV_CHANNEL_ORDER_UNSPEC;
240 ✗ st->codecpar->ch_layout.nb_channels = channels;
241
242 ✗ if (st->codecpar->ch_layout.nb_channels <= 0 || st->codecpar->sample_rate <= 0)
243 ✗ return AVERROR_INVALIDDATA;
244
245 ✗ avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
246
247 ✗ avio_seek(pb, -size, SEEK_CUR);
248 ✗ if ((ret = ff_get_extradata(s, st->codecpar, pb, size)) < 0)
249 ✗ return ret;
250
251 ✗ return 0;
252 }
253
254 15 static inline int wav_parse_bext_string(AVFormatContext *s, const char *key,
255 int length)
256 {
257 char temp[257];
258 int ret;
259
260
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 15 av_assert0(length < sizeof(temp));
261
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 15 if ((ret = ffio_read_size(s->pb, temp, length)) < 0)
262 ✗ return ret;
263
264 15 temp[length] = 0;
265
266
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 15 if (strlen(temp))
267 9 return av_dict_set(&s->metadata, key, temp, 0);
268
269 6 return 0;
270 }
271
272 3 static int wav_parse_bext_tag(AVFormatContext *s, int64_t size)
273 {
274 char temp[131], *coding_history;
275 int ret, x;
276 uint64_t time_reference;
277 3 int64_t umid_parts[8], umid_mask = 0;
278
279
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 6 if ((ret = wav_parse_bext_string(s, "description", 256)) < 0 ||
280
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 6 (ret = wav_parse_bext_string(s, "originator", 32)) < 0 ||
281
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 6 (ret = wav_parse_bext_string(s, "originator_reference", 32)) < 0 ||
282
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 6 (ret = wav_parse_bext_string(s, "origination_date", 10)) < 0 ||
283 3 (ret = wav_parse_bext_string(s, "origination_time", 8)) < 0)
284 ✗ return ret;
285
286 3 time_reference = avio_rl64(s->pb);
287 3 snprintf(temp, sizeof(temp), "%"PRIu64, time_reference);
288
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 3 if ((ret = av_dict_set(&s->metadata, "time_reference", temp, 0)) < 0)
289 ✗ return ret;
290
291 /* check if version is >= 1, in which case an UMID may be present */
292
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 3 if (avio_rl16(s->pb) >= 1) {
293 ✗ for (x = 0; x < 8; x++)
294 ✗ umid_mask |= umid_parts[x] = avio_rb64(s->pb);
295
296 ✗ if (umid_mask) {
297 /* the string formatting below is per SMPTE 330M-2004 Annex C */
298 ✗ if (umid_parts[4] == 0 && umid_parts[5] == 0 &&
299 ✗ umid_parts[6] == 0 && umid_parts[7] == 0) {
300 /* basic UMID */
301 ✗ snprintf(temp, sizeof(temp),
302 "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
303 umid_parts[0], umid_parts[1],
304 umid_parts[2], umid_parts[3]);
305 } else {
306 /* extended UMID */
307 ✗ snprintf(temp, sizeof(temp),
308 "0x%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64
309 "%016"PRIX64"%016"PRIX64"%016"PRIX64"%016"PRIX64,
310 umid_parts[0], umid_parts[1],
311 umid_parts[2], umid_parts[3],
312 umid_parts[4], umid_parts[5],
313 umid_parts[6], umid_parts[7]);
314 }
315
316 ✗ if ((ret = av_dict_set(&s->metadata, "umid", temp, 0)) < 0)
317 ✗ return ret;
318 }
319
320 ✗ avio_skip(s->pb, 190);
321 } else
322 3 avio_skip(s->pb, 254);
323
324
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 3 if (size > 602) {
325 /* CodingHistory present */
326 3 int64_t coding_history_size = size - 602;
327
328 /* Professional BEXT coding history rarely exceeds a few KB.
329 * Cap to 1MB to prevent excessive allocation from crafted files
330 * while remaining well within ffio_read_size's int range. */
331
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 3 if (coding_history_size > 1024 * 1024) {
332 ✗ av_log(s, AV_LOG_ERROR, "BEXT coding history too large (%"PRId64")\n", coding_history_size);
333 ✗ return AVERROR_INVALIDDATA;
334 }
335
336
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 3 if (!(coding_history = av_malloc(coding_history_size + 1)))
337 ✗ return AVERROR(ENOMEM);
338
339
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 3 if ((ret = ffio_read_size(s->pb, coding_history, coding_history_size)) < 0) {
340 ✗ av_free(coding_history);
341 ✗ return ret;
342 }
343
344 3 coding_history[coding_history_size] = 0;
345
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 3 if ((ret = av_dict_set(&s->metadata, "coding_history", coding_history,
346 AV_DICT_DONT_STRDUP_VAL)) < 0)
347 ✗ return ret;
348 }
349
350 3 return 0;
351 }
352
353 static const AVMetadataConv wav_metadata_conv[] = {
354 { "description", "comment" },
355 { "originator", "encoded_by" },
356 { "origination_date", "date" },
357 { "origination_time", "creation_time" },
358 { 0 },
359 };
360
361 /* wav input */
362 609 static int wav_read_header(AVFormatContext *s)
363 {
364 609 int64_t size, av_uninit(data_size);
365 609 int64_t sample_count = 0;
366 609 int rf64 = 0, bw64 = 0;
367 uint32_t tag;
368 609 AVIOContext *pb = s->pb;
369 609 AVStream *st = NULL;
370 609 WAVDemuxContext *wav = s->priv_data;
371 609 int ret, got_fmt = 0, got_xma2 = 0;
372 609 int64_t next_tag_ofs, data_ofs = -1;
373
374 609 wav->unaligned = avio_tell(s->pb) & 1;
375
376 609 wav->smv_data_ofs = -1;
377
378 /* read chunk ID */
379 609 tag = avio_rl32(pb);
380
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 609 switch (tag) {
381 609 case MKTAG('R', 'I', 'F', 'F'):
382 609 break;
383 ✗ case MKTAG('R', 'I', 'F', 'X'):
384 ✗ wav->rifx = 1;
385 ✗ break;
386 ✗ case MKTAG('R', 'F', '6', '4'):
387 ✗ rf64 = 1;
388 ✗ break;
389 ✗ case MKTAG('B', 'W', '6', '4'):
390 ✗ bw64 = 1;
391 ✗ break;
392 ✗ default:
393 ✗ av_log(s, AV_LOG_ERROR, "invalid start code %s in RIFF header\n",
394 ✗ av_fourcc2str(tag));
395 ✗ return AVERROR_INVALIDDATA;
396 }
397
398 /* read chunk size */
399 609 avio_rl32(pb);
400
401 /* read format */
402
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 609 if (avio_rl32(pb) != MKTAG('W', 'A', 'V', 'E')) {
403 ✗ av_log(s, AV_LOG_ERROR, "invalid format in RIFF header\n");
404 ✗ return AVERROR_INVALIDDATA;
405 }
406
407
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 609 if (rf64 || bw64) {
408 ✗ if (avio_rl32(pb) != MKTAG('d', 's', '6', '4'))
409 ✗ return AVERROR_INVALIDDATA;
410 ✗ size = avio_rl32(pb);
411 ✗ if (size < 24)
412 ✗ return AVERROR_INVALIDDATA;
413 ✗ avio_rl64(pb); /* RIFF size */
414
415 ✗ data_size = avio_rl64(pb);
416 ✗ sample_count = avio_rl64(pb);
417
418 ✗ if (data_size < 0 || sample_count < 0) {
419 ✗ av_log(s, AV_LOG_ERROR, "negative data_size and/or sample_count in "
420 "ds64: data_size = %"PRId64", sample_count = %"PRId64"\n",
421 data_size, sample_count);
422 ✗ return AVERROR_INVALIDDATA;
423 }
424 ✗ avio_skip(pb, size - 24); /* skip rest of ds64 chunk */
425
426 }
427
428 /* Create the audio stream now so that its index is always zero */
429 609 st = avformat_new_stream(s, NULL);
430
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 609 if (!st)
431 ✗ return AVERROR(ENOMEM);
432
433 693 for (;;) {
434 AVStream *vst;
435 1302 size = next_tag(pb, &tag, wav->rifx);
436 1302 next_tag_ofs = avio_tell(pb) + size + (size & 1);
437
438
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 1302 if (avio_feof(pb))
439 ✗ break;
440
441
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 1302 switch (tag) {
442 609 case MKTAG('f', 'm', 't', ' '):
443 /* only parse the first 'fmt ' tag found */
444
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 609 if (!got_xma2 && !got_fmt && (ret = wav_parse_fmt_tag(s, size, st)) < 0) {
445 ✗ return ret;
446
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 609 } else if (got_fmt)
447 ✗ av_log(s, AV_LOG_WARNING, "found more than one 'fmt ' tag\n");
448
449 609 got_fmt = 1;
450 609 break;
451 ✗ case MKTAG('X', 'M', 'A', '2'):
452 /* only parse the first 'XMA2' tag found */
453 ✗ if (!got_fmt && !got_xma2 && (ret = wav_parse_xma2_tag(s, size, st)) < 0) {
454 ✗ return ret;
455 ✗ } else if (got_xma2)
456 ✗ av_log(s, AV_LOG_WARNING, "found more than one 'XMA2' tag\n");
457
458 ✗ got_xma2 = 1;
459 ✗ break;
460 609 case MKTAG('d', 'a', 't', 'a'):
461
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 609 if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) && !got_fmt && !got_xma2) {
462 ✗ av_log(s, AV_LOG_ERROR,
463 "found no 'fmt ' tag before the 'data' tag\n");
464 ✗ return AVERROR_INVALIDDATA;
465 }
466
467
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 609 if (rf64 || bw64) {
468 ✗ wav->data_end = av_sat_add64(avio_tell(pb), data_size);
469 ✗ next_tag_ofs = wav->data_end + (data_size & 1);
470
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 609 } else if (size > 0 && size != 0xFFFFFFFF) {
471 607 data_size = size;
472 607 wav->data_end = avio_tell(pb) + size;
473 607 next_tag_ofs = wav->data_end + (size & 1);
474 } else {
475 2 av_log(s, AV_LOG_WARNING, "Ignoring maximum wav data size, "
476 "file may be invalid\n");
477 2 data_size = 0;
478 2 next_tag_ofs = wav->data_end = INT64_MAX;
479 }
480
481 609 data_ofs = avio_tell(pb);
482
483 /* don't look for footer metadata if we can't seek or if we don't
484 * know where the data tag ends
485 */
486
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 609 if (!(pb->seekable & AVIO_SEEKABLE_NORMAL) || (!(rf64 && !bw64) && !size))
487 2 goto break_loop;
488 607 break;
489 49 case MKTAG('f', 'a', 'c', 't'):
490
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 49 if (!sample_count)
491
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 49 sample_count = (!wav->rifx ? avio_rl32(pb) : avio_rb32(pb));
492 49 break;
493 3 case MKTAG('b', 'e', 'x', 't'):
494
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 3 if ((ret = wav_parse_bext_tag(s, size)) < 0)
495 ✗ return ret;
496 3 break;
497 1 case MKTAG('S','M','V','0'):
498
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 1 if (!got_fmt) {
499 ✗ av_log(s, AV_LOG_ERROR, "found no 'fmt ' tag before the 'SMV0' tag\n");
500 ✗ return AVERROR_INVALIDDATA;
501 }
502 // SMV file, a wav file with video appended.
503
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 1 if (size != MKTAG('0','2','0','0')) {
504 ✗ av_log(s, AV_LOG_ERROR, "Unknown SMV version found\n");
505 ✗ goto break_loop;
506 }
507 1 av_log(s, AV_LOG_DEBUG, "Found SMV data\n");
508 1 wav->smv_given_first = 0;
509 1 vst = avformat_new_stream(s, NULL);
510
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 1 if (!vst)
511 ✗ return AVERROR(ENOMEM);
512 1 wav->vst = vst;
513 1 avio_r8(pb);
514 1 vst->id = 1;
515 1 vst->codecpar->codec_type = AVMEDIA_TYPE_VIDEO;
516 1 vst->codecpar->codec_id = AV_CODEC_ID_SMVJPEG;
517 1 vst->codecpar->width = avio_rl24(pb);
518 1 vst->codecpar->height = avio_rl24(pb);
519
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 1 if ((ret = ff_alloc_extradata(vst->codecpar, 4)) < 0) {
520 ✗ av_log(s, AV_LOG_ERROR, "Could not allocate extradata.\n");
521 ✗ return ret;
522 }
523 1 size = avio_rl24(pb);
524 1 wav->smv_data_ofs = avio_tell(pb) + (size - 5) * 3;
525 1 avio_rl24(pb);
526 1 wav->smv_block_size = avio_rl24(pb);
527
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 1 if (!wav->smv_block_size)
528 ✗ return AVERROR_INVALIDDATA;
529 1 avpriv_set_pts_info(vst, 32, 1, avio_rl24(pb));
530 1 vst->duration = avio_rl24(pb);
531 1 avio_rl24(pb);
532 1 avio_rl24(pb);
533 1 wav->smv_frames_per_jpeg = avio_rl24(pb);
534
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 1 if (wav->smv_frames_per_jpeg > 65536) {
535 ✗ av_log(s, AV_LOG_ERROR, "too many frames per jpeg\n");
536 ✗ return AVERROR_INVALIDDATA;
537 }
538 1 AV_WL32(vst->codecpar->extradata, wav->smv_frames_per_jpeg);
539 1 goto break_loop;
540 27 case MKTAG('L', 'I', 'S', 'T'):
541 case MKTAG('l', 'i', 's', 't'):
542
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 27 if (size < 4) {
543 ✗ av_log(s, AV_LOG_ERROR, "too short LIST tag\n");
544 ✗ return AVERROR_INVALIDDATA;
545 }
546
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 27 switch (avio_rl32(pb)) {
547 24 case MKTAG('I', 'N', 'F', 'O'):
548 24 ff_read_riff_info(s, size - 4);
549 24 break;
550 3 case MKTAG('a', 'd', 't', 'l'):
551
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 3 if (s->nb_chapters > 0) {
552
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 33 while (avio_tell(pb) < next_tag_ofs &&
553 15 !avio_feof(pb)) {
554 char cue_label[512];
555 unsigned id, sub_size;
556
557
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✓ Branch 2 taken 15 times.
 15 if (avio_rl32(pb) != MKTAG('l', 'a', 'b', 'l'))
558 ✗ break;
559
560 15 sub_size = avio_rl32(pb);
561
1/2
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 15 if (sub_size < 5)
562 ✗ break;
563 15 id = avio_rl32(pb);
564 15 avio_get_str(pb, sub_size - 4, cue_label, sizeof(cue_label));
565 15 avio_skip(pb, avio_tell(pb) & 1);
566
567
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 45 for (int i = 0; i < s->nb_chapters; i++) {
568
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 45 if (s->chapters[i]->id == id) {
569 15 av_dict_set(&s->chapters[i]->metadata, "title", cue_label, 0);
570 15 break;
571 }
572 }
573 }
574 }
575 3 break;
576 }
577 27 break;
578 ✗ case MKTAG('I', 'D', '3', ' '):
579 case MKTAG('i', 'd', '3', ' '): {
580 ID3v2ExtraMeta *id3v2_extra_meta;
581 ✗ ff_id3v2_read(s, ID3v2_DEFAULT_MAGIC, &id3v2_extra_meta, 0);
582 ✗ if (id3v2_extra_meta) {
583 ✗ ff_id3v2_parse_apic(s, id3v2_extra_meta);
584 ✗ ff_id3v2_parse_chapters(s, id3v2_extra_meta);
585 ✗ ff_id3v2_parse_priv(s, id3v2_extra_meta);
586 }
587 ✗ ff_id3v2_free_extra_meta(&id3v2_extra_meta);
588 }
589 ✗ break;
590 3 case MKTAG('c', 'u', 'e', ' '):
591
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 3 if (size >= 4 && got_fmt && st->codecpar->sample_rate > 0) {
592 3 AVRational tb = {1, st->codecpar->sample_rate};
593 3 unsigned nb_cues = avio_rl32(pb);
594
595
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 3 if (size >= nb_cues * 24LL + 4LL) {
596
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 18 for (int i = 0; i < nb_cues; i++) {
597 15 unsigned offset, id = avio_rl32(pb);
598
599
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 15 if (avio_feof(pb))
600 ✗ return AVERROR_INVALIDDATA;
601
602 15 avio_skip(pb, 16);
603 15 offset = avio_rl32(pb);
604
605
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✓ Branch 2 taken 15 times.
 15 if (!avpriv_new_chapter(s, id, tb, offset, AV_NOPTS_VALUE, NULL))
606 ✗ return AVERROR(ENOMEM);
607 }
608 }
609 }
610 3 break;
611 }
612
613 /* seek to next tag unless we know that we'll run into EOF */
614
4/6
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 1992 if ((avio_size(pb) > 0 && next_tag_ofs >= avio_size(pb)) ||
615 693 wav_seek_tag(wav, pb, next_tag_ofs) < 0) {
616 break;
617 }
618 }
619
620 606 break_loop:
621
1/4
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 609 if (!got_fmt && !got_xma2) {
622 ✗ av_log(s, AV_LOG_ERROR, "no 'fmt ' or 'XMA2' tag found\n");
623 ✗ return AVERROR_INVALIDDATA;
624 }
625
626
1/2
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 609 if (data_ofs < 0) {
627 ✗ av_log(s, AV_LOG_ERROR, "no 'data' tag found\n");
628 ✗ return AVERROR_INVALIDDATA;
629 }
630
631 609 avio_seek(pb, data_ofs, SEEK_SET);
632
633
1/2
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 609 if (data_size > (INT64_MAX>>3)) {
634 ✗ av_log(s, AV_LOG_WARNING, "Data size %"PRId64" is too large\n", data_size);
635 ✗ data_size = 0;
636 }
637
638
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 609 if ( st->codecpar->bit_rate > 0 && data_size > 0
639
1/2
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 607 && st->codecpar->sample_rate > 0
640
4/4
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 607 && sample_count > 0 && st->codecpar->ch_layout.nb_channels > 1
641
1/2
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 36 && sample_count % st->codecpar->ch_layout.nb_channels == 0) {
642 36 if (fabs(8.0 * data_size * st->codecpar->ch_layout.nb_channels * st->codecpar->sample_rate /
643
1/2
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 36 sample_count /st->codecpar->bit_rate - 1.0) < 0.3)
644 ✗ sample_count /= st->codecpar->ch_layout.nb_channels;
645 }
646
647
5/6
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 609 if (data_size > 0 && sample_count && st->codecpar->ch_layout.nb_channels &&
648
1/2
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 48 (data_size << 3) / sample_count / st->codecpar->ch_layout.nb_channels > st->codecpar->bits_per_coded_sample + 1) {
649 ✗ av_log(s, AV_LOG_WARNING, "ignoring wrong sample_count %"PRId64"\n", sample_count);
650 ✗ sample_count = 0;
651 }
652
653 /* G.729 hack (for Ticket4577)
654 * FIXME: Come up with cleaner, more general solution */
655
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 609 if (st->codecpar->codec_id == AV_CODEC_ID_G729 && sample_count && (data_size << 3) > sample_count) {
656 ✗ av_log(s, AV_LOG_WARNING, "ignoring wrong sample_count %"PRId64"\n", sample_count);
657 ✗ sample_count = 0;
658 }
659
660
4/4
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 609 if (!sample_count || av_get_exact_bits_per_sample(st->codecpar->codec_id) > 0)
661
1/2
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 588 if ( st->codecpar->ch_layout.nb_channels
662
2/2
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 588 && data_size
663
2/2
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 586 && av_get_bits_per_sample(st->codecpar->codec_id)
664
2/2
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✓ Branch 2 taken 3 times.
 580 && wav->data_end <= avio_size(pb))
665 1154 sample_count = (data_size << 3)
666 577 /
667 577 (st->codecpar->ch_layout.nb_channels * (uint64_t)av_get_bits_per_sample(st->codecpar->codec_id));
668
669
2/2
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 609 if (sample_count)
670 598 st->duration = sample_count;
671
672
2/2
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 609 if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S32LE &&
673
1/2
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 3 st->codecpar->block_align == st->codecpar->ch_layout.nb_channels * 4 &&
674
1/2
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 3 st->codecpar->bits_per_coded_sample == 32 &&
675
1/2
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 3 st->codecpar->extradata_size == 2 &&
676 ✗ AV_RL16(st->codecpar->extradata) == 1) {
677 ✗ st->codecpar->codec_id = AV_CODEC_ID_PCM_F16LE;
678 ✗ st->codecpar->bits_per_coded_sample = 16;
679
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 609 } else if (st->codecpar->codec_id == AV_CODEC_ID_PCM_S24LE &&
680
1/2
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✓ Branch 1 taken 13 times.
 13 st->codecpar->block_align == st->codecpar->ch_layout.nb_channels * 4 &&
681 ✗ st->codecpar->bits_per_coded_sample == 24) {
682 ✗ st->codecpar->codec_id = AV_CODEC_ID_PCM_F24LE;
683
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✗ Branch 1 not taken.
 609 } else if (st->codecpar->codec_id == AV_CODEC_ID_XMA1 ||
684
1/2
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 609 st->codecpar->codec_id == AV_CODEC_ID_XMA2) {
685 ✗ st->codecpar->block_align = 2048;
686
3/4
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✓ Branch 3 taken 5 times.
 609 } else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS && st->codecpar->ch_layout.nb_channels > 2 &&
687 ✗ st->codecpar->block_align < INT_MAX / st->codecpar->ch_layout.nb_channels) {
688 ✗ st->codecpar->block_align *= st->codecpar->ch_layout.nb_channels;
689 }
690
691 609 ff_metadata_conv_ctx(s, NULL, wav_metadata_conv);
692 609 ff_metadata_conv_ctx(s, NULL, ff_riff_info_conv);
693
694 609 set_spdif(s, wav);
695 609 set_max_size(st, wav);
696
697 609 return 0;
698 }
699
700 /**
701 * Find chunk with w64 GUID by skipping over other chunks.
702 * @return the size of the found chunk
703 */
704 6 static int64_t find_guid(AVIOContext *pb, const uint8_t guid1[16])
705 {
706 uint8_t guid[16];
707 int64_t size;
708
709
2/2
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✓ Branch 2 taken 4 times.
 6 while (!avio_feof(pb)) {
710
1/2
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✗ Branch 2 not taken.
 2 if (avio_read(pb, guid, 16) != 16)
711 2 break;
712 ✗ size = avio_rl64(pb);
713 ✗ if (size <= 24 || size > INT64_MAX - 8)
714 ✗ return AVERROR_INVALIDDATA;
715 ✗ if (!memcmp(guid, guid1, 16))
716 ✗ return size;
717 ✗ avio_skip(pb, FFALIGN(size, INT64_C(8)) - 24);
718 }
719 6 return AVERROR_EOF;
720 }
721
722 38482 static int wav_read_packet(AVFormatContext *s, AVPacket *pkt)
723 {
724 int ret, size;
725 int64_t left;
726 38482 WAVDemuxContext *wav = s->priv_data;
727 38482 AVStream *st = s->streams[0];
728
729
2/2
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✓ Branch 1 taken 38437 times.
 38482 if (CONFIG_SPDIF_DEMUXER && wav->spdif == 1)
730 45 return ff_spdif_read_packet(s, pkt);
731
732
2/2
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✓ Branch 1 taken 38369 times.
 38437 if (wav->smv_data_ofs > 0) {
733 int64_t audio_dts, video_dts;
734 68 AVStream *vst = wav->vst;
735 68 smv_retry:
736 69 audio_dts = (int32_t)ffstream( st)->cur_dts;
737 69 video_dts = (int32_t)ffstream(vst)->cur_dts;
738
739
2/4
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 69 if (audio_dts != AV_NOPTS_VALUE && video_dts != AV_NOPTS_VALUE) {
740 /*We always return a video frame first to get the pixel format first*/
741 138 wav->smv_last_stream = wav->smv_given_first ?
742 68 av_compare_ts(video_dts, vst->time_base,
743
4/4
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✓ Branch 3 taken 3 times.
 137 audio_dts, st->time_base) > 0 : 0;
744 69 wav->smv_given_first = 1;
745 }
746 69 wav->smv_last_stream = !wav->smv_last_stream;
747 69 wav->smv_last_stream |= wav->audio_eof;
748 69 wav->smv_last_stream &= !wav->smv_eof;
749
2/2
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✓ Branch 1 taken 66 times.
 69 if (wav->smv_last_stream) {
750 3 uint64_t old_pos = avio_tell(s->pb);
751 3 uint64_t new_pos = wav->smv_data_ofs +
752 3 wav->smv_block * (int64_t)wav->smv_block_size;
753
1/2
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✓ Branch 2 taken 3 times.
 3 if (avio_seek(s->pb, new_pos, SEEK_SET) < 0) {
754 ✗ ret = AVERROR_EOF;
755 ✗ goto smv_out;
756 }
757 3 size = avio_rl24(s->pb);
758
1/2
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✓ Branch 1 taken 3 times.
 3 if (size > wav->smv_block_size) {
759 ✗ ret = AVERROR_EOF;
760 ✗ goto smv_out;
761 }
762 3 ret = av_get_packet(s->pb, pkt, size);
763
2/2
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 3 if (ret < 0)
764 1 goto smv_out;
765 2 pkt->pos -= 3;
766 2 pkt->pts = wav->smv_block * wav->smv_frames_per_jpeg;
767 2 pkt->duration = wav->smv_frames_per_jpeg;
768 2 wav->smv_block++;
769
770 2 pkt->stream_index = vst->index;
771 3 smv_out:
772 3 avio_seek(s->pb, old_pos, SEEK_SET);
773
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 2 times.
 3 if (ret == AVERROR_EOF) {
774 1 wav->smv_eof = 1;
775 1 goto smv_retry;
776 }
777 2 return ret;
778 }
779 }
780
781 38435 left = wav->data_end - avio_tell(s->pb);
782
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 38435 if (wav->ignore_length)
783 ✗ left = INT_MAX;
784
2/2
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 38435 if (left <= 0) {
785
2/2
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 306 if (CONFIG_W64_DEMUXER && wav->w64)
786 6 left = find_guid(s->pb, ff_w64_guid_data) - 24;
787 else
788 300 left = find_tag(wav, s->pb, MKTAG('d', 'a', 't', 'a'));
789
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 306 if (left < 0) {
790 306 wav->audio_eof = 1;
791
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✓ Branch 3 taken 1 times.
 306 if (wav->smv_data_ofs > 0 && !wav->smv_eof)
792 ✗ goto smv_retry;
793 306 return AVERROR_EOF;
794 }
795 ✗ if (INT64_MAX - left < avio_tell(s->pb))
796 ✗ return AVERROR_INVALIDDATA;
797 ✗ wav->data_end = avio_tell(s->pb) + left;
798 }
799
800 38129 size = wav->max_size;
801
2/2
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✓ Branch 1 taken 634 times.
 38129 if (st->codecpar->block_align > 1) {
802
1/2
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✓ Branch 1 taken 37495 times.
 37495 if (size < st->codecpar->block_align)
803 ✗ size = st->codecpar->block_align;
804 37495 size = (size / st->codecpar->block_align) * st->codecpar->block_align;
805 }
806 38129 size = FFMIN(size, left);
807 38129 ret = av_get_packet(s->pb, pkt, size);
808
2/2
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✓ Branch 1 taken 38115 times.
 38129 if (ret < 0)
809 14 return ret;
810 38115 pkt->stream_index = 0;
811
812 38115 return ret;
813 }
814
815 440 static int wav_read_seek(AVFormatContext *s,
816 int stream_index, int64_t timestamp, int flags)
817 {
818 440 WAVDemuxContext *wav = s->priv_data;
819 440 AVStream *ast = s->streams[0], *vst = wav->vst;
820 440 wav->smv_eof = 0;
821 440 wav->audio_eof = 0;
822
823
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 440 if (stream_index != 0 && (!vst || stream_index != vst->index))
824 ✗ return AVERROR(EINVAL);
825
1/2
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 440 if (wav->smv_data_ofs > 0) {
826 ✗ int64_t smv_timestamp = timestamp;
827 ✗ if (stream_index == 0)
828 ✗ smv_timestamp = av_rescale_q(timestamp, ast->time_base, vst->time_base);
829 else
830 ✗ timestamp = av_rescale_q(smv_timestamp, vst->time_base, ast->time_base);
831 ✗ if (wav->smv_frames_per_jpeg > 0) {
832 ✗ wav->smv_block = smv_timestamp / wav->smv_frames_per_jpeg;
833 }
834 }
835
836
1/2
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 440 switch (ast->codecpar->codec_id) {
837 ✗ case AV_CODEC_ID_MP2:
838 case AV_CODEC_ID_MP3:
839 case AV_CODEC_ID_AC3:
840 case AV_CODEC_ID_DTS:
841 case AV_CODEC_ID_XMA2:
842 /* use generic seeking with dynamically generated indexes */
843 ✗ return -1;
844 440 default:
845 440 break;
846 }
847 440 return ff_pcm_read_seek(s, 0, timestamp, flags);
848 }
849
850 static const AVClass wav_demuxer_class = {
851 .class_name = "WAV demuxer",
852 .item_name = av_default_item_name,
853 .option = demux_options,
854 .version = LIBAVUTIL_VERSION_INT,
855 };
856 const FFInputFormat ff_wav_demuxer = {
857 .p.name = "wav",
858 .p.long_name = NULL_IF_CONFIG_SMALL("WAV / WAVE (Waveform Audio)"),
859 .p.flags = AVFMT_GENERIC_INDEX,
860 .p.codec_tag = ff_wav_codec_tags_list,
861 .p.priv_class = &wav_demuxer_class,
862 .priv_data_size = sizeof(WAVDemuxContext),
863 .flags_internal = FF_INFMT_FLAG_ID3V2_AUTO,
864 .read_probe = wav_probe,
865 .read_header = wav_read_header,
866 .read_packet = wav_read_packet,
867 .read_seek = wav_read_seek,
868 };
869 #endif /* CONFIG_WAV_DEMUXER */
870
871 #if CONFIG_W64_DEMUXER
872 7778 static int w64_probe(const AVProbeData *p)
873 {
874
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 7778 if (p->buf_size <= 40)
875 3 return 0;
876
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 7775 if (!memcmp(p->buf, ff_w64_guid_riff, 16) &&
877
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 2 !memcmp(p->buf + 24, ff_w64_guid_wave, 16))
878 2 return AVPROBE_SCORE_MAX;
879 else
880 7773 return 0;
881 }
882
883 2 static int w64_read_header(AVFormatContext *s)
884 {
885 2 int64_t size, data_ofs = 0;
886 2 AVIOContext *pb = s->pb;
887 2 WAVDemuxContext *wav = s->priv_data;
888 AVStream *st;
889 uint8_t guid[16];
890 2 int ret = ffio_read_size(pb, guid, 16);
891
892
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 2 if (ret < 0)
893 ✗ return ret;
894
895
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 2 if (memcmp(guid, ff_w64_guid_riff, 16))
896 ✗ return AVERROR_INVALIDDATA;
897
898 /* riff + wave + fmt + sizes */
899
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 2 if (avio_rl64(pb) < 16 + 8 + 16 + 8 + 16 + 8)
900 ✗ return AVERROR_INVALIDDATA;
901
902 2 ret = ffio_read_size(pb, guid, 16);
903
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 2 if (ret < 0)
904 ✗ return ret;
905
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 2 if (memcmp(guid, ff_w64_guid_wave, 16)) {
906 ✗ av_log(s, AV_LOG_ERROR, "could not find wave guid\n");
907 ✗ return AVERROR_INVALIDDATA;
908 }
909
910 2 wav->w64 = 1;
911
912 2 st = avformat_new_stream(s, NULL);
913
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 2 if (!st)
914 ✗ return AVERROR(ENOMEM);
915
916
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 6 while (!avio_feof(pb)) {
917
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 6 if (avio_read(pb, guid, 16) != 16)
918 2 break;
919 4 size = avio_rl64(pb);
920
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 4 if (size <= 24 || INT64_MAX - size - 7 < avio_tell(pb)) {
921 ✗ if (data_ofs)
922 ✗ break;
923 ✗ return AVERROR_INVALIDDATA;
924 }
925
926
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 4 if (!memcmp(guid, ff_w64_guid_fmt, 16)) {
927 /* subtract chunk header size - normal wav file doesn't count it */
928 2 ret = ff_get_wav_header(s, pb, st->codecpar, size - 24, 0);
929
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 2 if (ret < 0)
930 ✗ return ret;
931 2 avio_skip(pb, FFALIGN(size, INT64_C(8)) - size);
932
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933
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934
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 2 st->codecpar->bits_per_coded_sample < 128) {
935 2 int64_t block_align = st->codecpar->block_align;
936
937 2 block_align = FFMAX(block_align,
938 ((st->codecpar->bits_per_coded_sample + 7LL) / 8) *
939 st->codecpar->ch_layout.nb_channels);
940
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 2 if (block_align > st->codecpar->block_align) {
941 ✗ av_log(s, AV_LOG_WARNING, "invalid block_align: %d, broken file.\n",
942 ✗ st->codecpar->block_align);
943 ✗ st->codecpar->block_align = block_align;
944 }
945 }
946 2 avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
947
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 2 } else if (!memcmp(guid, ff_w64_guid_fact, 16)) {
948 int64_t samples;
949
950 ✗ samples = avio_rl64(pb);
951 ✗ if (samples > 0)
952 ✗ st->duration = samples;
953 ✗ avio_skip(pb, FFALIGN(size, INT64_C(8)) - 32);
954
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 2 } else if (!memcmp(guid, ff_w64_guid_data, 16)) {
955 2 wav->data_end = avio_tell(pb) + size - 24;
956
957 2 data_ofs = avio_tell(pb);
958
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 2 if (!(pb->seekable & AVIO_SEEKABLE_NORMAL))
959 ✗ break;
960
961 2 avio_skip(pb, size - 24);
962 ✗ } else if (!memcmp(guid, ff_w64_guid_summarylist, 16)) {
963 int64_t start, end, cur;
964 uint32_t count, chunk_size, i;
965 ✗ int64_t filesize = avio_size(s->pb);
966
967 ✗ start = avio_tell(pb);
968 ✗ end = start + FFALIGN(size, INT64_C(8)) - 24;
969 ✗ count = avio_rl32(pb);
970
971 ✗ for (i = 0; i < count; i++) {
972 char chunk_key[5], *value;
973
974 ✗ if (avio_feof(pb) || (cur = avio_tell(pb)) < 0 || cur > end - 8 /* = tag + size */)
975 break;
976
977 ✗ chunk_key[4] = 0;
978 ✗ avio_read(pb, chunk_key, 4);
979 ✗ chunk_size = avio_rl32(pb);
980 ✗ if (chunk_size == UINT32_MAX || (filesize >= 0 && chunk_size > filesize))
981 ✗ return AVERROR_INVALIDDATA;
982
983 ✗ value = av_malloc(chunk_size + 1);
984 ✗ if (!value)
985 ✗ return AVERROR(ENOMEM);
986
987 ✗ ret = avio_get_str16le(pb, chunk_size, value, chunk_size);
988 ✗ if (ret < 0) {
989 ✗ av_free(value);
990 ✗ return ret;
991 }
992 ✗ avio_skip(pb, chunk_size - ret);
993
994 ✗ av_dict_set(&s->metadata, chunk_key, value, AV_DICT_DONT_STRDUP_VAL);
995 }
996
997 ✗ avio_skip(pb, end - avio_tell(pb));
998 } else {
999 ✗ av_log(s, AV_LOG_DEBUG, "unknown guid: "FF_PRI_GUID"\n", FF_ARG_GUID(guid));
1000 ✗ avio_skip(pb, FFALIGN(size, INT64_C(8)) - 24);
1001 }
1002 }
1003
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 2 if (!data_ofs)
1005 ✗ return AVERROR_EOF;
1006
1007 2 ff_metadata_conv_ctx(s, NULL, wav_metadata_conv);
1008 2 ff_metadata_conv_ctx(s, NULL, ff_riff_info_conv);
1009
1010 2 handle_stream_probing(st);
1011 2 ffstream(st)->need_parsing = AVSTREAM_PARSE_FULL_RAW;
1012
1013 2 avio_seek(pb, data_ofs, SEEK_SET);
1014
1015 2 set_spdif(s, wav);
1016 2 set_max_size(st, wav);
1017
1018 2 return 0;
1019 }
1020
1021 static const AVClass w64_demuxer_class = {
1022 .class_name = "W64 demuxer",
1023 .item_name = av_default_item_name,
1024 .option = &demux_options[W64_DEMUXER_OPTIONS_OFFSET],
1025 .version = LIBAVUTIL_VERSION_INT,
1026 };
1027
1028 const FFInputFormat ff_w64_demuxer = {
1029 .p.name = "w64",
1030 .p.long_name = NULL_IF_CONFIG_SMALL("Sony Wave64"),
1031 .p.flags = AVFMT_GENERIC_INDEX,
1032 .p.codec_tag = ff_wav_codec_tags_list,
1033 .p.priv_class = &w64_demuxer_class,
1034 .priv_data_size = sizeof(WAVDemuxContext),
1035 .read_probe = w64_probe,
1036 .read_header = w64_read_header,
1037 .read_packet = wav_read_packet,
1038 .read_seek = wav_read_seek,
1039 };
1040 #endif /* CONFIG_W64_DEMUXER */
1041