46 #if CONFIG_WAV_DEMUXER
55 static int64_t wav_seek_tag(
AVIOContext *s, int64_t offset,
int whence)
57 return avio_seek(s, offset + (offset & 1), whence);
61 static int64_t find_tag(
AVIOContext *pb, uint32_t tag1)
69 size = next_tag(pb, &tag);
72 wav_seek_tag(pb, size, SEEK_CUR);
82 if (!memcmp(p->
buf + 8,
"WAVE", 4)) {
83 if (!memcmp(p->
buf,
"RIFF", 4))
88 else if (!memcmp(p->
buf,
"RF64", 4) &&
89 !memcmp(p->
buf + 12,
"ds64", 4))
115 static inline int wav_parse_bext_string(
AVFormatContext *s,
const char *key,
135 char temp[131], *coding_history;
137 uint64_t time_reference;
138 int64_t umid_parts[8], umid_mask = 0;
140 if ((ret = wav_parse_bext_string(s,
"description", 256)) < 0 ||
141 (ret = wav_parse_bext_string(s,
"originator", 32)) < 0 ||
142 (ret = wav_parse_bext_string(s,
"originator_reference", 32)) < 0 ||
143 (ret = wav_parse_bext_string(s,
"origination_date", 10)) < 0 ||
144 (ret = wav_parse_bext_string(s,
"origination_time", 8)) < 0)
148 snprintf(temp,
sizeof(temp),
"%"PRIu64, time_reference);
154 for (x = 0; x < 8; x++)
159 if (umid_parts[4] == 0 && umid_parts[5] == 0 &&
160 umid_parts[6] == 0 && umid_parts[7] == 0) {
162 snprintf(temp,
sizeof(temp),
163 "0x%016"PRIX64
"%016"PRIX64
"%016"PRIX64
"%016"PRIX64,
164 umid_parts[0], umid_parts[1],
165 umid_parts[2], umid_parts[3]);
168 snprintf(temp,
sizeof(temp),
169 "0x%016"PRIX64
"%016"PRIX64
"%016"PRIX64
"%016"PRIX64
170 "0x%016"PRIX64
"%016"PRIX64
"%016"PRIX64
"%016"PRIX64,
171 umid_parts[0], umid_parts[1],
172 umid_parts[2], umid_parts[3],
173 umid_parts[4], umid_parts[5],
174 umid_parts[6], umid_parts[7]);
189 if (!(coding_history =
av_malloc(size + 1)))
192 if ((ret =
avio_read(s->
pb, coding_history, size)) < 0)
195 coding_history[
size] = 0;
205 {
"description",
"comment" },
206 {
"originator",
"encoded_by" },
207 {
"origination_date",
"date" },
208 {
"origination_time",
"creation_time" },
216 int64_t sample_count = 0;
222 int ret, got_fmt = 0;
223 int64_t next_tag_ofs, data_ofs = -1;
228 rf64 = tag ==
MKTAG(
'R',
'F',
'6',
'4');
229 if (!rf64 && tag !=
MKTAG(
'R',
'I',
'F',
'F'))
233 if (tag !=
MKTAG(
'W',
'A',
'V',
'E'))
247 if (data_size < 0 || sample_count < 0) {
249 "ds64: data_size = %"PRId64
", sample_count = %"PRId64
"\n",
250 data_size, sample_count);
257 size = next_tag(pb, &tag);
264 case MKTAG(
'f',
'm',
't',
' '):
266 if (!got_fmt && (ret = wav_parse_fmt_tag(s, size, &st) < 0)) {
273 case MKTAG(
'd',
'a',
't',
'a'):
276 "found no 'fmt ' tag before the 'data' tag\n");
284 next_tag_ofs = wav->
data_end = size ? next_tag_ofs : INT64_MAX;
292 if (!pb->
seekable || (!rf64 && !size))
295 case MKTAG(
'f',
'a',
'c',
't'):
299 case MKTAG(
'b',
'e',
'x',
't'):
300 if ((ret = wav_parse_bext_tag(s, size)) < 0)
303 case MKTAG(
'L',
'I',
'S',
'T'):
309 case MKTAG(
'I',
'N',
'F',
'O'):
318 wav_seek_tag(pb, next_tag_ofs, SEEK_SET) < 0) {
333 sample_count = (data_size << 3) /
359 if (!memcmp(guid, guid1, 16))
366 static const uint8_t guid_data[16] = {
368 0xF3, 0xAC, 0xD3, 0x11,0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A
371 #define MAX_SIZE 4096
385 left = find_guid(s->
pb, guid_data) - 24;
387 left = find_tag(s->
pb,
MKTAG(
'd',
'a',
't',
'a'));
395 if (size < st->codec->block_align)
399 size =
FFMIN(size, left);
409 int stream_index, int64_t timestamp,
int flags)
440 #if CONFIG_W64_DEMUXER
441 static const uint8_t guid_riff[16] = {
443 0x2E, 0x91, 0xCF, 0x11,0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00
446 static const uint8_t guid_wave[16] = {
448 0xF3, 0xAC, 0xD3, 0x11,0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A
451 static const uint8_t guid_fmt[16] = {
453 0xF3, 0xAC, 0xD3, 0x11,0x8C, 0xD1, 0x00, 0xC0, 0x4F, 0x8E, 0xDB, 0x8A
460 if (!memcmp(p->
buf, guid_riff, 16) &&
461 !memcmp(p->
buf + 24, guid_wave, 16))
477 if (memcmp(guid, guid_riff, 16))
481 if (
avio_rl64(pb) < 16 + 8 + 16 + 8 + 16 + 8)
485 if (memcmp(guid, guid_wave, 16)) {
490 size = find_guid(pb, guid_fmt);
510 size = find_guid(pb, guid_data);
int ff_read_riff_info(AVFormatContext *s, int64_t size)
void * av_malloc(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
int64_t avio_size(AVIOContext *s)
Get the filesize.
#define AV_LOG_WARNING
Something somehow does not look correct.
static int read_seek(AVFormatContext *ctx, int stream_index, int64_t timestamp, int flags)
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
int block_align
number of bytes per packet if constant and known or 0 Used by some WAV based audio codecs...
#define av_assert0(cond)
assert() equivalent, that is always enabled.
enum AVStreamParseType need_parsing
AVStream * avformat_new_stream(AVFormatContext *s, const AVCodec *c)
Add a new stream to a media file.
AVStream ** streams
A list of all streams in the file.
#define AVERROR_EOF
End of file.
uint64_t avio_rb64(AVIOContext *s)
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int av_get_bits_per_sample(enum AVCodecID codec_id)
Return codec bits per sample.
AVDictionary * metadata
Metadata that applies to the whole file.
unsigned int avio_rl32(AVIOContext *s)
int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
preferred ID for decoding MPEG audio layer 1, 2 or 3
simple assert() macros that are a bit more flexible than ISO C assert().
void av_log(void *avcl, int level, const char *fmt,...)
const AVCodecTag ff_codec_wav_tags[]
AVCodecContext * codec
Codec context associated with this stream.
int buf_size
Size of buf except extra allocated bytes.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
#define AV_DICT_DONT_STRDUP_VAL
Take ownership of a value that's been allocated with av_malloc() and chilren.
static av_always_inline int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
internal header for RIFF based (de)muxers do NOT include this in end user applications ...
static int read_header(FFV1Context *f)
if(ac->has_optimized_func)
int sample_rate
samples per second
AVIOContext * pb
I/O context.
static int read_packet(AVFormatContext *ctx, AVPacket *pkt)
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
This structure contains the data a format has to probe a file.
const AVMetadataConv ff_riff_info_conv[]
int64_t duration
Decoding: duration of the stream, in stream time base.
unsigned int avio_rl16(AVIOContext *s)
int eof_reached
true if eof reached
int channels
number of audio channels
void * priv_data
Format private data.
#define MKTAG(a, b, c, d)
This structure stores compressed data.
uint64_t avio_rl64(AVIOContext *s)