39 #define PRI_PRETTY_GUID \
40 "%08x-%04x-%04x-%02x%02x%02x%02x%02x%02x%02x%02x"
41 #define ARG_PRETTY_GUID(g) \
42 AV_RL32(g),AV_RL16(g+4),AV_RL16(g+6),g[8],g[9],g[10],g[11],g[12],g[13],g[14],g[15]
43 #define LEN_PRETTY_GUID 34
51 #define WTV_SECTOR_BITS 12
52 #define WTV_SECTOR_SIZE (1 << WTV_SECTOR_BITS)
53 #define WTV_BIGSECTOR_BITS 18
55 #define SHIFT_SECTOR_BITS(a) ((int64_t)(a) << WTV_SECTOR_BITS)
89 while(nread < buf_size) {
92 int read_request =
FFMIN(buf_size - nread, remaining_in_sector);
100 if (n == remaining_in_sector) {
123 else if (whence == SEEK_CUR)
125 else if (whence == SEEK_END)
145 for (i = 0; i < count; i++) {
181 }
else if (depth == 1) {
189 }
else if (depth == 2) {
200 for (i = 0; i < nb_sectors1; i++) {
219 length &= 0xFFFFFFFFFFFF;
253 {0x92,0xB7,0x74,0x91,0x59,0x70,0x70,0x44,0x88,0xDF,0x06,0x3B,0x82,0xCC,0x21,0x3D};
265 const uint8_t *buf_end = buf + buf_size;
267 while(buf + 48 <= buf_end) {
268 int dir_length, name_size, first_sector, depth;
269 uint64_t file_length;
273 "remaining directory entries ignored\n",
FF_ARG_GUID(buf));
276 dir_length =
AV_RL16(buf + 16);
277 file_length =
AV_RL64(buf + 24);
278 name_size = 2 *
AV_RL32(buf + 32);
281 "bad filename length, remaining directory entries ignored\n");
284 if (48 + name_size > buf_end - buf) {
285 av_log(s,
AV_LOG_ERROR,
"filename exceeds buffer size; remaining directory entries ignored\n");
288 first_sector =
AV_RL32(buf + 40 + name_size);
289 depth =
AV_RL32(buf + 44 + name_size);
293 if (name_size >= filename_size &&
294 !memcmp(name, filename, filename_size) &&
295 (name_size < filename_size + 2 || !
AV_RN16(name + filename_size)))
303 #define wtvfile_open(s, buf, buf_size, filename) \
304 wtvfile_open2(s, buf, buf_size, filename, sizeof(filename))
343 {0xB7,0xD8,0x00,0x20,0x37,0x49,0xDA,0x11,0xA6,0x4E,0x00,0x07,0xE9,0x5E,0xAD,0x8D};
345 {0x5A,0xFE,0xD7,0x6D,0xC8,0x1D,0x8F,0x4A,0x99,0x22,0xFA,0xB1,0x1C,0x38,0x14,0x53};
347 {0x5B,0x05,0xE6,0x1B,0x97,0xA9,0x49,0x43,0x88,0x17,0x1A,0x65,0x5A,0x29,0x8A,0x97};
349 {0x95,0xC3,0xD2,0xC2,0x7E,0x9A,0xDA,0x11,0x8B,0xF7,0x00,0x07,0xE9,0x5E,0xAD,0x8D};
351 {0xED,0xA4,0x13,0x23,0x2D,0xBF,0x4F,0x45,0xAD,0x8A,0xD9,0x5B,0xA7,0xF9,0x1F,0xEE};
353 {0xA2,0xC3,0xD2,0xC2,0x7E,0x9A,0xDA,0x11,0x8B,0xF7,0x00,0x07,0xE9,0x5E,0xAD,0x8D};
355 {0x48,0xC0,0xCE,0x5D,0xB9,0xD0,0x63,0x41,0x87,0x2C,0x4F,0x32,0x22,0x3B,0xE8,0x8A};
357 {0x6D,0x66,0x92,0xE2,0x02,0x9C,0x8D,0x44,0xAA,0x8D,0x78,0x1A,0x93,0xFD,0xC3,0x95};
359 {0x1C,0xD4,0x7B,0x10,0xDA,0xA6,0x91,0x46,0x83,0x69,0x11,0xB2,0xCD,0xAA,0x28,0x8E};
361 {0xE6,0xA2,0xB4,0x3A,0x47,0x42,0x34,0x4B,0x89,0x6C,0x30,0xAF,0xA5,0xD2,0x1C,0x24};
363 {0xD9,0x79,0xE7,0xEf,0xF0,0x97,0x86,0x47,0x80,0x0D,0x95,0xCF,0x50,0x5D,0xDC,0x66};
365 {0xC4,0xE1,0xD4,0x4B,0xA1,0x90,0x09,0x41,0x82,0x36,0x27,0xF0,0x0E,0x7D,0xCC,0x5B};
367 {0x68,0xAB,0xF1,0xCA,0x53,0xE1,0x41,0x4D,0xA6,0xB3,0xA7,0xC9,0x98,0xDB,0x75,0xEE};
369 {0x50,0xD9,0x99,0x95,0x33,0x5F,0x17,0x46,0xAF,0x7C,0x1E,0x54,0xB5,0x10,0xDA,0xA3};
371 {0xBE,0xBF,0x1C,0x50,0x49,0xB8,0xCE,0x42,0x9B,0xE9,0x3D,0xB8,0x69,0xFB,0x82,0xB3};
381 {0x81,0xEB,0x36,0xE4,0x4F,0x52,0xCE,0x11,0x9F,0x53,0x00,0x20,0xAF,0x0B,0xA7,0x70};
383 {0x6C,0x17,0x5F,0x45,0x06,0x4B,0xCE,0x47,0x9A,0xEF,0x8C,0xAE,0xF7,0x3D,0xF7,0xB5};
385 {0x20,0x80,0x6D,0xE0,0x46,0xDB,0xCF,0x11,0xB4,0xD1,0x00,0x80,0x5F,0x6C,0xBB,0xEA};
387 {0x89,0x8A,0x8B,0xB8,0x49,0xB0,0x80,0x4C,0xAD,0xCF,0x58,0x98,0x98,0x5E,0x22,0xC1};
391 {0x28,0xBD,0xAD,0x46,0xD0,0x6F,0x96,0x47,0x93,0xB2,0x15,0x5C,0x51,0xDC,0x04,0x8D};
393 {0xC3,0xCB,0xFF,0x34,0xB3,0xD5,0x71,0x41,0x90,0x02,0xD4,0xC6,0x03,0x01,0x69,0x7F};
395 {0xE3,0x76,0x2A,0xF7,0x0A,0xEB,0xD0,0x11,0xAC,0xE4,0x00,0x00,0xC0,0xCC,0x16,0xBA};
397 {0xAA,0xDD,0x2A,0xF5,0xF0,0x36,0xF5,0x43,0x95,0xEA,0x6D,0x86,0x64,0x84,0x26,0x2A};
399 {0x79,0x85,0x9F,0x4A,0xF8,0x6B,0x92,0x43,0x8A,0x6D,0xD2,0xDD,0x09,0xFA,0x78,0x61};
403 {0x6F,0xB3,0x39,0x67,0x5F,0x1D,0xC2,0x4A,0x81,0x92,0x28,0xBB,0x0E,0x73,0xD1,0x6A};
405 {0x81,0x9F,0x58,0x05,0x56,0xC3,0xCE,0x11,0xBF,0x01,0x00,0xAA,0x00,0x55,0x59,0x5A};
407 {0xA0,0x76,0x2A,0xF7,0x0A,0xEB,0xD0,0x11,0xAC,0xE4,0x00,0x00,0xC0,0xCC,0x16,0xBA};
409 {0xE3,0x80,0x6D,0xE0,0x46,0xDB,0xCF,0x11,0xB4,0xD1,0x00,0x80,0x5F,0x6C,0xBB,0xEA};
411 {0xD6,0x17,0x64,0x0F,0x18,0xC3,0xD0,0x11,0xA4,0x3F,0x00,0xA0,0xC9,0x22,0x31,0x96};
414 {
AV_CODEC_ID_MPEG2VIDEO, {0x26,0x80,0x6D,0xE0,0x46,0xDB,0xCF,0x11,0xB4,0xD1,0x00,0x80,0x5F,0x6C,0xBB,0xEA}},
428 time_t
t = (value / 10000000LL) - 11644473600LL;
429 struct tm *tm = gmtime(&t);
431 strftime(buf, buf_size,
"%Y-%m-%d %H:%M:%S", gmtime(&t));
441 time_t
t = (value / 10000000LL) - 719162LL*86400LL;
442 struct tm *tm = gmtime(&t);
444 strftime(buf, buf_size,
"%Y-%m-%d %H:%M:%S", gmtime(&t));
455 struct tm *tm = gmtime(&t);
457 strftime(buf, buf_size,
"%Y-%m-%d %H:%M:%S", gmtime(&t));
465 char description[1024];
466 unsigned int filesize;
471 if (strcmp(mime,
"image/jpeg"))
503 if (type == 0 && length == 4) {
504 snprintf(buf, buf_size,
"%"PRIi32,
avio_rl32(pb));
505 }
else if (type == 1) {
511 }
else if (type == 3 && length == 4) {
512 strcpy(buf,
avio_rl32(pb) ?
"true" :
"false");
513 }
else if (type == 4 && length == 8) {
515 if (!strcmp(key,
"WM/EncodingTime") ||
516 !strcmp(key,
"WM/MediaOriginalBroadcastDateTime"))
518 else if (!strcmp(key,
"WM/WMRVEncodeTime") ||
519 !strcmp(key,
"WM/WMRVEndTime"))
521 else if (!strcmp(key,
"WM/WMRVExpirationDate"))
523 else if (!strcmp(key,
"WM/WMRVBitrate"))
526 snprintf(buf, buf_size,
"%"PRIi64, num);
527 }
else if (type == 5 && length == 2) {
528 snprintf(buf, buf_size,
"%u",
avio_rl16(pb));
529 }
else if (type == 6 && length == 16) {
533 }
else if (type == 2 && !strcmp(key,
"WM/Picture")) {
539 av_log(s,
AV_LOG_WARNING,
"unsupported metadata entry; key:%s, type:%d, length:0x%x\n", key, type, length);
564 "remaining metadata entries ignored\n",
FF_ARG_GUID(guid));
568 get_tag(s, pb, key, type, length);
675 st =
parse_media_type(s, st, sid, mediatype, actual_subtype, actual_formattype, size - 32);
782 int len, sid, consumed;
803 consumed += 92 +
size;
817 consumed += 76 +
size;
826 if (stream_index >= 0) {
840 buf_size =
FFMIN(len - consumed,
sizeof(buf));
842 consumed += buf_size;
847 if (stream_index >= 0) {
854 else if (audio_type == 3)
860 if (stream_index >= 0) {
863 av_log(s,
AV_LOG_WARNING,
"DVB scrambled stream detected (st:%d), decoding will likely fail\n", stream_index);
868 if (stream_index >= 0) {
876 if (!strcmp(language,
"nar") || !strcmp(language,
"NAR"))
883 if (stream_index >= 0) {
894 #define WTV_PAD8(x) (((x) + 7) & ~7)
902 if (mode ==
SEEK_TO_DATA && stream_index >= 0 && len > 32) {
911 !
ff_guidcmp(g, (
const ff_asf_guid){0x14,0x56,0x1A,0x0C,0xCD,0x30,0x40,0x4F,0xBC,0xBF,0xD0,0x3E,0x52,0x30,0x62,0x07}) ||
912 !
ff_guidcmp(g, (
const ff_asf_guid){0x02,0xAE,0x5B,0x2F,0x8F,0x7B,0x60,0x4F,0x82,0xD6,0xE4,0xEA,0x2F,0x1F,0x4C,0x99}) ||
913 !
ff_guidcmp(g, (
const ff_asf_guid){0x12,0xF6,0x22,0xB6,0xAD,0x47,0x71,0x46,0xAD,0x6C,0x05,0xA9,0x8E,0x65,0xDE,0x3A}) ||
914 !
ff_guidcmp(g, (
const ff_asf_guid){0xCC,0x32,0x64,0xDD,0x29,0xE2,0xDB,0x40,0x80,0xF6,0xD2,0x63,0x28,0xD2,0x76,0x1F}) ||
915 !
ff_guidcmp(g, (
const ff_asf_guid){0xE5,0xC5,0x67,0x90,0x5C,0x4C,0x05,0x42,0x86,0xC8,0x7A,0xFE,0x20,0xFE,0x1E,0xFA}) ||
916 !
ff_guidcmp(g, (
const ff_asf_guid){0x80,0x6D,0xF3,0x41,0x32,0x41,0xC2,0x4C,0xB1,0x21,0x01,0xA4,0x32,0x19,0xD8,0x1B}) ||
917 !
ff_guidcmp(g, (
const ff_asf_guid){0x51,0x1D,0xAB,0x72,0xD2,0x87,0x9B,0x48,0xBA,0x11,0x0E,0x08,0xDC,0x21,0x02,0x43}) ||
918 !
ff_guidcmp(g, (
const ff_asf_guid){0x65,0x8F,0xFC,0x47,0xBB,0xE2,0x34,0x46,0x9C,0xEF,0xFD,0xBF,0xE6,0x26,0x1D,0x5C}) ||
919 !
ff_guidcmp(g, (
const ff_asf_guid){0xCB,0xC5,0x68,0x80,0x04,0x3C,0x2B,0x49,0xB4,0x7D,0x03,0x08,0x82,0x0D,0xCE,0x51}) ||
920 !
ff_guidcmp(g, (
const ff_asf_guid){0xBC,0x2E,0xAF,0x82,0xA6,0x30,0x64,0x42,0xA8,0x0B,0xAD,0x2E,0x13,0x72,0xAC,0x60}) ||
921 !
ff_guidcmp(g, (
const ff_asf_guid){0x1E,0xBE,0xC3,0xC5,0x43,0x92,0xDC,0x11,0x85,0xE5,0x00,0x12,0x3F,0x6F,0x73,0xB9}) ||
922 !
ff_guidcmp(g, (
const ff_asf_guid){0x3B,0x86,0xA2,0xB1,0xEB,0x1E,0xC3,0x44,0x8C,0x88,0x1C,0xA3,0xFF,0xE3,0xE7,0x6A}) ||
923 !
ff_guidcmp(g, (
const ff_asf_guid){0x4E,0x7F,0x4C,0x5B,0xC4,0xD0,0x38,0x4B,0xA8,0x3E,0x21,0x7F,0x7B,0xBF,0x52,0xE7}) ||
924 !
ff_guidcmp(g, (
const ff_asf_guid){0x63,0x36,0xEB,0xFE,0xA1,0x7E,0xD9,0x11,0x83,0x08,0x00,0x07,0xE9,0x5E,0xAD,0x8D}) ||
925 !
ff_guidcmp(g, (
const ff_asf_guid){0x70,0xE9,0xF1,0xF8,0x89,0xA4,0x4C,0x4D,0x83,0x73,0xB8,0x12,0xE0,0xD5,0xF8,0x1E}) ||
926 !
ff_guidcmp(g, (
const ff_asf_guid){0x96,0xC3,0xD2,0xC2,0x7E,0x9A,0xDA,0x11,0x8B,0xF7,0x00,0x07,0xE9,0x5E,0xAD,0x8D}) ||
927 !
ff_guidcmp(g, (
const ff_asf_guid){0x97,0xC3,0xD2,0xC2,0x7E,0x9A,0xDA,0x11,0x8B,0xF7,0x00,0x07,0xE9,0x5E,0xAD,0x8D}) ||
928 !
ff_guidcmp(g, (
const ff_asf_guid){0xA1,0xC3,0xD2,0xC2,0x7E,0x9A,0xDA,0x11,0x8B,0xF7,0x00,0x07,0xE9,0x5E,0xAD,0x8D})) {
941 {
't'_'i'_'m'_'e'_'l'_'i'_'n'_'e', 0};
953 int root_sector, root_size;
956 int64_t timeline_pos;
966 if (root_size >
sizeof(root)) {
1025 if (frame_nb > e->
size)
1027 if (position > e->
pos)
1046 int stream_index,
len, ret;
1049 if (stream_index < 0)
1050 return stream_index;
1062 int64_t ts,
int flags)
1067 int64_t ts_relative;
1077 ts_relative -= wtv->
epoch;
#define WTV_BIGSECTOR_BITS
void * av_malloc(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
static int64_t seek_by_sector(AVIOContext *pb, int64_t sector, int64_t offset)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
static const ff_asf_guid mediatype_video
static const AVCodecGuid video_guids[]
static AVIOContext * wtvfile_open2(AVFormatContext *s, const uint8_t *buf, int buf_size, const uint8_t *filename, int filename_size)
Open file using filename.
static const ff_asf_guid timestamp_guid
static const ff_asf_guid mediatype_audio
int64_t epoch
timeline file
static av_always_inline int ff_get_guid(AVIOContext *s, ff_asf_guid *g)
static void get_attachment(AVFormatContext *s, AVIOContext *pb, int length)
#define AV_LOG_WARNING
Something somehow does not look correct.
static int parse_videoinfoheader2(AVFormatContext *s, AVStream *st)
parse VIDEOINFOHEADER2 structure
#define ARG_PRETTY_GUID(g)
int sector_bits
file system (AVFormatContext->pb)
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
unsigned char * buffer
Start of the buffer.
enum AVMediaType codec_type
static int64_t wtvfile_seek(void *opaque, int64_t offset, int whence)
int error
number of sectors
void * opaque
A private pointer, passed to the read/write/seek/...
static void parse_legacy_attrib(AVFormatContext *s, AVIOContext *pb)
Parse metadata entries.
static const ff_asf_guid dir_entry_guid
static const ff_asf_guid stream_guid
#define AV_CH_LAYOUT_STEREO
int avio_get_str16le(AVIOContext *pb, int maxlen, char *buf, int buflen)
Read a UTF-16 string from pb and convert it to UTF-8.
static int read_packet(AVFormatContext *s, AVPacket *pkt)
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
static const ff_asf_guid mediatype_mpeg2_sections
static const ff_asf_guid mediatype_mstvcaption
static const ff_asf_guid stream2_guid
static const ff_asf_guid data_guid
static const ff_asf_guid EVENTID_StreamIDSpanningEvent
static const ff_asf_guid EVENTID_SubtitleSpanningEvent
static av_always_inline double av_int2double(uint64_t i)
Reinterpret a 64-bit integer as a double.
static const ff_asf_guid format_waveformatex
#define FF_MEDIASUBTYPE_BASE_GUID
static int read_probe(AVProbeData *p)
static const ff_asf_guid EVENTID_DVBScramblingControlSpanningEvent
enum AVStreamParseType need_parsing
int id
Format-specific stream ID.
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
static const ff_asf_guid mediasubtype_dvb_subtitle
AVStream ** streams
A list of all streams in the file.
static const ff_asf_guid mediasubtype_teletext
#define AVERROR_EOF
End of file.
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
AVInputFormat ff_wtv_demuxer
int bits_per_coded_sample
bits per sample/pixel from the demuxer (needed for huffyuv).
static int wtvfile_read_packet(void *opaque, uint8_t *buf, int buf_size)
static const ff_asf_guid EVENTID_TeletextSpanningEvent
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
static const uint8_t timeline_table_0_entries_Events_le16[]
static void get_tag(AVFormatContext *s, AVIOContext *pb, const char *key, int type, int length)
#define SHIFT_SECTOR_BITS(a)
AVIOContext * avio_alloc_context(unsigned char *buffer, int buffer_size, int write_flag, void *opaque, int(*read_packet)(void *opaque, uint8_t *buf, int buf_size), int(*write_packet)(void *opaque, uint8_t *buf, int buf_size), int64_t(*seek)(void *opaque, int64_t offset, int whence))
Allocate and initialize an AVIOContext for buffered I/O.
static int parse_chunks(AVFormatContext *s, int mode, int64_t seekts, int *len_ptr)
Parse WTV chunks.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
AVDictionary * metadata
Metadata that applies to the whole file.
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
static const ff_asf_guid EVENTID_CSDescriptorSpanningEvent
AVIOContext * pb_filesystem
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
static int read_close(AVFormatContext *s)
static const ff_asf_guid mediatype_mpeg2_pes
static void parse_mpeg1waveformatex(AVStream *st)
Parse MPEG1WAVEFORMATEX extradata structure.
void av_log(void *avcl, int level, const char *fmt,...)
AVStream * avformat_new_stream(AVFormatContext *s, AVCodec *c)
Add a new stream to a media file.
uint64_t channel_layout
Audio channel layout.
int avio_r8(AVIOContext *s)
AVCodecContext * codec
Codec context associated with this stream.
static const ff_asf_guid EVENTID_AudioDescriptorSpanningEvent
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
static const ff_asf_guid metadata_guid
int bit_rate
the average bitrate
audio channel layout utility functions
static const ff_asf_guid format_mpeg2_video
const AVCodecTag ff_codec_bmp_tags[]
static const uint8_t table_0_entries_time_le16[]
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 const ff_asf_guid EVENTID_LanguageSpanningEvent
static const ff_asf_guid EVENTID_AudioTypeSpanningEvent
Opaque data information usually sparse.
preferred ID for MPEG-1/2 video decoding
const AVCodecGuid ff_codec_wav_guids[]
static const ff_asf_guid format_none
static const ff_asf_guid wtv_guid
static const ff_asf_guid EVENTID_CtxADescriptorSpanningEvent
static AVStream * new_stream(AVFormatContext *s, AVStream *st, int sid, int codec_type)
Initialise stream.
enum AVMediaType codec_type
AVIOContext * pb
I/O context.
static const ff_asf_guid mediasubtype_mpeg2_sections
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
static void wtvfile_close(AVIOContext *pb)
Close file opened with wtvfile_open_sector(), or wtv_open()
static const ff_asf_guid mediasubtype_cpfilters_processed
static void filetime_to_iso8601(char *buf, int buf_size, int64_t value)
Convert win32 FILETIME to ISO-8601 string.
const AVMetadataConv ff_asf_metadata_conv[]
static void crazytime_to_iso8601(char *buf, int buf_size, int64_t value)
Convert crazy time (100ns since 1 Jan 0001) to ISO-8601 string.
static const ff_asf_guid mediasubtype_mpeg1payload
int error
contains the error code or 0 if no error happened
This structure contains the data a format has to probe a file.
unsigned int index_entries_allocated_size
static const ff_asf_guid format_videoinfo2
static const ff_asf_guid format_cpfilters_processed
int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type, const uint8_t **pp, const uint8_t *desc_list_end, Mp4Descr *mp4_descr, int mp4_descr_count, int pid, MpegTSContext *ts)
Parse an MPEG-2 descriptor.
int64_t duration
Decoding: duration of the stream, in stream time base.
unsigned int avio_rl16(AVIOContext *s)
enum AVCodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid)
static const uint8_t timeline_le16[]
enum AVCodecID ff_wav_codec_get_id(unsigned int tag, int bps)
int disposition
AV_DISPOSITION_* bit field.
static const ff_asf_guid mediasubtype_dtvccdata
#define AVSEEK_SIZE
Passing this as the "whence" parameter to a seek function causes it to return the filesize without se...
static void oledate_to_iso8601(char *buf, int buf_size, int64_t value)
Convert OLE DATE to ISO-8601 string.
int64_t last_valid_pts
pts for next data chunk
uint32_t * sectors
sector shift bits; used to convert sector number into pb_filesystem offset
static AVIOContext * wtvfile_open_sector(int first_sector, uint64_t length, int depth, AVFormatContext *s)
Open file.
int eof_reached
true if eof reached
#define wtvfile_open(s, buf, buf_size, filename)
int channels
number of audio channels
void * priv_data
Format private data.
static AVStream * parse_media_type(AVFormatContext *s, AVStream *st, int sid, ff_asf_guid mediatype, ff_asf_guid subtype, ff_asf_guid formattype, int size)
parse Media Type structure and populate stream
int ff_get_bmp_header(AVIOContext *pb, AVStream *st)
Read BITMAPINFOHEADER structure and set AVStream codec width, height and bits_per_encoded_sample fiel...
static int read_ints(AVIOContext *pb, uint32_t *data, int count)
read non-zero integers (le32) from input stream
int nb_sectors
file allocation table
#define AV_CH_LAYOUT_MONO
static int read_seek(AVFormatContext *s, int stream_index, int64_t ts, int flags)
static av_always_inline int ff_guidcmp(const void *g1, const void *g2)
This structure stores compressed data.
uint64_t avio_rl64(AVIOContext *s)
static const uint8_t table_0_entries_legacy_attrib_le16[]
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
static int read_header(AVFormatContext *s)
#define AV_NOPTS_VALUE
Undefined timestamp value.
AVIndexEntry * index_entries
latest valid pts, used for interative seeking