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WTV muxer (1_extract_wtv_common_code.patch)

This commit is contained in:
zhentan feng 2011-08-23 21:40:58 +08:00 committed by Michael Niedermayer
parent bcc531f04a
commit 42d4df06e1
3 changed files with 56 additions and 36 deletions
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31
libavformat/wtv.c
View File

@ -39,6 +39,37 @@ const ff_asf_guid ff_mediatype_video =
const ff_asf_guid ff_format_none =
{0xD6,0x17,0x64,0x0F,0x18,0xC3,0xD0,0x11,0xA4,0x3F,0x00,0xA0,0xC9,0x22,0x31,0x96};
/* declare utf16le strings */
#define _ , 0,
const uint8_t ff_timeline_le16[] =
{'t'_'i'_'m'_'e'_'l'_'i'_'n'_'e', 0};
const uint8_t ff_timeline_table_0_entries_Events_le16[] =
{'t'_'i'_'m'_'e'_'l'_'i'_'n'_'e'_'.'_'t'_'a'_'b'_'l'_'e'_'.'_'0'_'.'_'e'_'n'_'t'_'r'_'i'_'e'_'s'_'.'_'E'_'v'_'e'_'n'_'t'_'s', 0};
const uint8_t ff_table_0_entries_legacy_attrib_le16[] =
{'t'_'a'_'b'_'l'_'e'_'.'_'0'_'.'_'e'_'n'_'t'_'r'_'i'_'e'_'s'_'.'_'l'_'e'_'g'_'a'_'c'_'y'_'_'_'a'_'t'_'t'_'r'_'i'_'b', 0};
const uint8_t ff_table_0_entries_time_le16[] =
{'t'_'a'_'b'_'l'_'e'_'.'_'0'_'.'_'e'_'n'_'t'_'r'_'i'_'e'_'s'_'.'_'t'_'i'_'m'_'e', 0};
#undef _
const ff_asf_guid ff_DSATTRIB_TRANSPORT_PROPERTIES =
{0x12,0xF6,0x22,0xB6,0xAD,0x47,0x71,0x46,0xAD,0x6C,0x05,0xA9,0x8E,0x65,0xDE,0x3A};
const ff_asf_guid ff_metadata_guid =
{0x5A,0xFE,0xD7,0x6D,0xC8,0x1D,0x8F,0x4A,0x99,0x22,0xFA,0xB1,0x1C,0x38,0x14,0x53};
const ff_asf_guid ff_stream2_guid =
{0xA2,0xC3,0xD2,0xC2,0x7E,0x9A,0xDA,0x11,0x8B,0xF7,0x00,0x07,0xE9,0x5E,0xAD,0x8D};
/* Media subtypes */
const ff_asf_guid ff_mediasubtype_cpfilters_processed =
{0x28,0xBD,0xAD,0x46,0xD0,0x6F,0x96,0x47,0x93,0xB2,0x15,0x5C,0x51,0xDC,0x04,0x8D};
/* Formats */
const ff_asf_guid ff_format_cpfilters_processed =
{0x6F,0xB3,0x39,0x67,0x5F,0x1D,0xC2,0x4A,0x81,0x92,0x28,0xBB,0x0E,0x73,0xD1,0x6A};
const ff_asf_guid ff_format_waveformatex =
{0x81,0x9F,0x58,0x05,0x56,0xC3,0xCE,0x11,0xBF,0x01,0x00,0xAA,0x00,0x55,0x59,0x5A};
const ff_asf_guid ff_format_mpeg2_video =
{0xE3,0x80,0x6D,0xE0,0x46,0xDB,0xCF,0x11,0xB4,0xD1,0x00,0x80,0x5F,0x6C,0xBB,0xEA};
const AVCodecGuid ff_video_guids[] = {
{CODEC_ID_MPEG2VIDEO, {0x26,0x80,0x6D,0xE0,0x46,0xDB,0xCF,0x11,0xB4,0xD1,0x00,0x80,0x5F,0x6C,0xBB,0xEA}},
{CODEC_ID_NONE}

14
libavformat/wtv.h
View File

@ -28,6 +28,12 @@
#define WTV_SECTOR_BITS 12
#define WTV_SECTOR_SIZE (1 << WTV_SECTOR_BITS)
#define WTV_BIGSECTOR_BITS 18
#define WTV_PAD8(x) (((x) + 7) & ~7)
extern const uint8_t ff_timeline_le16[16];
extern const uint8_t ff_timeline_table_0_entries_Events_le16[62];
extern const uint8_t ff_table_0_entries_legacy_attrib_le16[58];
extern const uint8_t ff_table_0_entries_time_le16[40];
extern const ff_asf_guid ff_dir_entry_guid;
extern const ff_asf_guid ff_wtv_guid;
@ -38,4 +44,12 @@ extern const ff_asf_guid ff_mediatype_audio;
extern const ff_asf_guid ff_mediatype_video;
extern const ff_asf_guid ff_format_none;
extern const AVCodecGuid ff_video_guids[];
extern const ff_asf_guid ff_DSATTRIB_TRANSPORT_PROPERTIES;
extern const ff_asf_guid ff_metadata_guid;
extern const ff_asf_guid ff_stream2_guid;
extern const ff_asf_guid ff_mediasubtype_cpfilters_processed;
extern const ff_asf_guid ff_format_cpfilters_processed;
extern const ff_asf_guid ff_format_waveformatex;
extern const ff_asf_guid ff_format_mpeg2_video;
#endif /* AVFORMAT_WTV_H */

47
libavformat/wtvdec.c
View File

@ -314,10 +314,6 @@ typedef struct {
} WtvContext;
/* WTV GUIDs */
static const ff_asf_guid metadata_guid =
{0x5A,0xFE,0xD7,0x6D,0xC8,0x1D,0x8F,0x4A,0x99,0x22,0xFA,0xB1,0x1C,0x38,0x14,0x53};
static const ff_asf_guid stream2_guid =
{0xA2,0xC3,0xD2,0xC2,0x7E,0x9A,0xDA,0x11,0x8B,0xF7,0x00,0x07,0xE9,0x5E,0xAD,0x8D};
static const ff_asf_guid EVENTID_SubtitleSpanningEvent =
{0x48,0xC0,0xCE,0x5D,0xB9,0xD0,0x63,0x41,0x87,0x2C,0x4F,0x32,0x22,0x3B,0xE8,0x8A};
static const ff_asf_guid EVENTID_LanguageSpanningEvent =
@ -350,8 +346,6 @@ static const ff_asf_guid mediatype_mstvcaption =
{0x89,0x8A,0x8B,0xB8,0x49,0xB0,0x80,0x4C,0xAD,0xCF,0x58,0x98,0x98,0x5E,0x22,0xC1};
/* Media subtypes */
static const ff_asf_guid mediasubtype_cpfilters_processed =
{0x28,0xBD,0xAD,0x46,0xD0,0x6F,0x96,0x47,0x93,0xB2,0x15,0x5C,0x51,0xDC,0x04,0x8D};
static const ff_asf_guid mediasubtype_dvb_subtitle =
{0xC3,0xCB,0xFF,0x34,0xB3,0xD5,0x71,0x41,0x90,0x02,0xD4,0xC6,0x03,0x01,0x69,0x7F};
static const ff_asf_guid mediasubtype_teletext =
@ -362,14 +356,8 @@ static const ff_asf_guid mediasubtype_mpeg2_sections =
{0x79,0x85,0x9F,0x4A,0xF8,0x6B,0x92,0x43,0x8A,0x6D,0xD2,0xDD,0x09,0xFA,0x78,0x61};
/* Formats */
static const ff_asf_guid format_cpfilters_processed =
{0x6F,0xB3,0x39,0x67,0x5F,0x1D,0xC2,0x4A,0x81,0x92,0x28,0xBB,0x0E,0x73,0xD1,0x6A};
static const ff_asf_guid format_waveformatex =
{0x81,0x9F,0x58,0x05,0x56,0xC3,0xCE,0x11,0xBF,0x01,0x00,0xAA,0x00,0x55,0x59,0x5A};
static const ff_asf_guid format_videoinfo2 =
{0xA0,0x76,0x2A,0xF7,0x0A,0xEB,0xD0,0x11,0xAC,0xE4,0x00,0x00,0xC0,0xCC,0x16,0xBA};
static const ff_asf_guid format_mpeg2_video =
{0xE3,0x80,0x6D,0xE0,0x46,0xDB,0xCF,0x11,0xB4,0xD1,0x00,0x80,0x5F,0x6C,0xBB,0xEA};
static int read_probe(AVProbeData *p)
{
@ -510,7 +498,7 @@ static void parse_legacy_attrib(AVFormatContext *s, AVIOContext *pb)
length = avio_rl32(pb);
if (!length)
break;
if (ff_guidcmp(&guid, metadata_guid)) {
if (ff_guidcmp(&guid, ff_metadata_guid)) {
av_log(s, AV_LOG_WARNING, "unknown guid "FF_PRI_GUID", expected metadata_guid; "
"remaining metadata entries ignored\n", FF_ARG_GUID(guid));
break;
@ -600,8 +588,8 @@ static AVStream * parse_media_type(AVFormatContext *s, AVStream *st, int sid,
{
WtvContext *wtv = s->priv_data;
AVIOContext *pb = wtv->pb;
if (!ff_guidcmp(subtype, mediasubtype_cpfilters_processed) &&
!ff_guidcmp(formattype, format_cpfilters_processed)) {
if (!ff_guidcmp(subtype, ff_mediasubtype_cpfilters_processed) &&
!ff_guidcmp(formattype, ff_format_cpfilters_processed)) {
ff_asf_guid actual_subtype;
ff_asf_guid actual_formattype;
@ -623,7 +611,7 @@ static AVStream * parse_media_type(AVFormatContext *s, AVStream *st, int sid,
st = new_stream(s, st, sid, AVMEDIA_TYPE_AUDIO);
if (!st)
return NULL;
if (!ff_guidcmp(formattype, format_waveformatex)) {
if (!ff_guidcmp(formattype, ff_format_waveformatex)) {
int ret = ff_get_wav_header(pb, st->codec, size);
if (ret < 0)
return NULL;
@ -653,7 +641,7 @@ static AVStream * parse_media_type(AVFormatContext *s, AVStream *st, int sid,
if (!ff_guidcmp(formattype, format_videoinfo2)) {
int consumed = parse_videoinfoheader2(s, st);
avio_skip(pb, FFMAX(size - consumed, 0));
} else if (!ff_guidcmp(formattype, format_mpeg2_video)) {
} else if (!ff_guidcmp(formattype, ff_format_mpeg2_video)) {
int consumed = parse_videoinfoheader2(s, st);
avio_skip(pb, FFMAX(size - consumed, 0));
} else {
@ -746,7 +734,7 @@ static int parse_chunks(AVFormatContext *s, int mode, int64_t seekts, int *len_p
parse_media_type(s, 0, sid, mediatype, subtype, formattype, size);
consumed += 92 + size;
}
} else if (!ff_guidcmp(g, stream2_guid)) {
} else if (!ff_guidcmp(g, ff_stream2_guid)) {
int stream_index = ff_find_stream_index(s, sid);
if (stream_index >= 0 && !((WtvStream*)s->streams[stream_index]->priv_data)->seen_data) {
ff_asf_guid mediatype, subtype, formattype;
@ -835,7 +823,6 @@ static int parse_chunks(AVFormatContext *s, int mode, int64_t seekts, int *len_p
if (wtv->epoch == AV_NOPTS_VALUE || wtv->pts < wtv->epoch)
wtv->epoch = wtv->pts;
if (mode == SEEK_TO_PTS && wtv->pts >= seekts) {
#define WTV_PAD8(x) (((x) + 7) & ~7)
avio_skip(pb, WTV_PAD8(len) - consumed);
return 0;
}
@ -854,7 +841,7 @@ static int parse_chunks(AVFormatContext *s, int mode, int64_t seekts, int *len_p
} else if (
!ff_guidcmp(g, /* DSATTRIB_CAPTURE_STREAMTIME */ (const ff_asf_guid){0x14,0x56,0x1A,0x0C,0xCD,0x30,0x40,0x4F,0xBC,0xBF,0xD0,0x3E,0x52,0x30,0x62,0x07}) ||
!ff_guidcmp(g, /* DSATTRIB_PicSampleSeq */ (const ff_asf_guid){0x02,0xAE,0x5B,0x2F,0x8F,0x7B,0x60,0x4F,0x82,0xD6,0xE4,0xEA,0x2F,0x1F,0x4C,0x99}) ||
!ff_guidcmp(g, /* DSATTRIB_TRANSPORT_PROPERTIES */ (const ff_asf_guid){0x12,0xF6,0x22,0xB6,0xAD,0x47,0x71,0x46,0xAD,0x6C,0x05,0xA9,0x8E,0x65,0xDE,0x3A}) ||
!ff_guidcmp(g, /* DSATTRIB_TRANSPORT_PROPERTIES */ ff_DSATTRIB_TRANSPORT_PROPERTIES) ||
!ff_guidcmp(g, /* dvr_ms_vid_frame_rep_data */ (const ff_asf_guid){0xCC,0x32,0x64,0xDD,0x29,0xE2,0xDB,0x40,0x80,0xF6,0xD2,0x63,0x28,0xD2,0x76,0x1F}) ||
!ff_guidcmp(g, /* EVENTID_ChannelChangeSpanningEvent */ (const ff_asf_guid){0xE5,0xC5,0x67,0x90,0x5C,0x4C,0x05,0x42,0x86,0xC8,0x7A,0xFE,0x20,0xFE,0x1E,0xFA}) ||
!ff_guidcmp(g, /* EVENTID_ChannelInfoSpanningEvent */ (const ff_asf_guid){0x80,0x6D,0xF3,0x41,0x32,0x41,0xC2,0x4C,0xB1,0x21,0x01,0xA4,0x32,0x19,0xD8,0x1B}) ||
@ -879,18 +866,6 @@ static int parse_chunks(AVFormatContext *s, int mode, int64_t seekts, int *len_p
return AVERROR_EOF;
}
/* declare utf16le strings */
#define _ , 0,
static const uint8_t timeline_le16[] =
{'t'_'i'_'m'_'e'_'l'_'i'_'n'_'e', 0};
static const uint8_t table_0_entries_legacy_attrib_le16[] =
{'t'_'a'_'b'_'l'_'e'_'.'_'0'_'.'_'e'_'n'_'t'_'r'_'i'_'e'_'s'_'.'_'l'_'e'_'g'_'a'_'c'_'y'_'_'_'a'_'t'_'t'_'r'_'i'_'b', 0};
static const uint8_t table_0_entries_time_le16[] =
{'t'_'a'_'b'_'l'_'e'_'.'_'0'_'.'_'e'_'n'_'t'_'r'_'i'_'e'_'s'_'.'_'t'_'i'_'m'_'e', 0};
static const uint8_t timeline_table_0_entries_Events_le16[] =
{'t'_'i'_'m'_'e'_'l'_'i'_'n'_'e'_'.'_'t'_'a'_'b'_'l'_'e'_'.'_'0'_'.'_'e'_'n'_'t'_'r'_'i'_'e'_'s'_'.'_'E'_'v'_'e'_'n'_'t'_'s', 0};
#undef _
static int read_header(AVFormatContext *s, AVFormatParameters *ap)
{
WtvContext *wtv = s->priv_data;
@ -920,7 +895,7 @@ static int read_header(AVFormatContext *s, AVFormatParameters *ap)
return AVERROR_INVALIDDATA;
/* parse chunks up until first data chunk */
wtv->pb = wtvfile_open(s, root, root_size, timeline_le16);
wtv->pb = wtvfile_open(s, root, root_size, ff_timeline_le16);
if (!wtv->pb) {
av_log(s, AV_LOG_ERROR, "timeline data missing\n");
return AVERROR_INVALIDDATA;
@ -934,7 +909,7 @@ static int read_header(AVFormatContext *s, AVFormatParameters *ap)
timeline_pos = avio_tell(s->pb); // save before opening another file
/* read metadata */
pb = wtvfile_open(s, root, root_size, table_0_entries_legacy_attrib_le16);
pb = wtvfile_open(s, root, root_size, ff_table_0_entries_legacy_attrib_le16);
if (pb) {
parse_legacy_attrib(s, pb);
wtvfile_close(pb);
@ -943,7 +918,7 @@ static int read_header(AVFormatContext *s, AVFormatParameters *ap)
/* read seek index */
if (s->nb_streams) {
AVStream *st = s->streams[0];
pb = wtvfile_open(s, root, root_size, table_0_entries_time_le16);
pb = wtvfile_open(s, root, root_size, ff_table_0_entries_time_le16);
if (pb) {
while(1) {
uint64_t timestamp = avio_rl64(pb);
@ -956,7 +931,7 @@ static int read_header(AVFormatContext *s, AVFormatParameters *ap)
wtvfile_close(pb);
if (wtv->nb_index_entries) {
pb = wtvfile_open(s, root, root_size, timeline_table_0_entries_Events_le16);
pb = wtvfile_open(s, root, root_size, ff_timeline_table_0_entries_Events_le16);
if (pb) {
int i;
while (1) {