mirror of https://git.ffmpeg.org/ffmpeg.git
wtv: parse MPEG2 descriptor events
Originally committed as revision 26126 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Peter Ross
parent
cc9038e95c
commit
3900707866
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@ -292,7 +292,7 @@ OBJS-$(CONFIG_WEBM_MUXER) += matroskaenc.o matroska.o \
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flacenc_header.o avlanguage.o
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OBJS-$(CONFIG_WSAUD_DEMUXER) += westwood.o
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OBJS-$(CONFIG_WSVQA_DEMUXER) += westwood.o
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OBJS-$(CONFIG_WTV_DEMUXER) += wtv.o asf.o asfdec.o riff.o
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OBJS-$(CONFIG_WTV_DEMUXER) += wtv.o asf.o asfdec.o mpegts.o riff.o
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OBJS-$(CONFIG_WV_DEMUXER) += wv.o apetag.o
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OBJS-$(CONFIG_XA_DEMUXER) += xa.o
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OBJS-$(CONFIG_YOP_DEMUXER) += yop.o
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@ -29,6 +29,7 @@
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#include "avformat.h"
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#include "riff.h"
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#include "asf.h"
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#include "mpegts.h"
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/* Macros for formating GUIDs */
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#define PRI_GUID \
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@ -78,6 +79,16 @@ static const ff_asf_guid EVENTID_SubtitleSpanningEvent =
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{0x48,0xC0,0xCE,0x5D,0xB9,0xD0,0x63,0x41,0x87,0x2C,0x4F,0x32,0x22,0x3B,0xE8,0x8A};
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static const ff_asf_guid EVENTID_LanguageSpanningEvent =
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{0x6D,0x66,0x92,0xE2,0x02,0x9C,0x8D,0x44,0xAA,0x8D,0x78,0x1A,0x93,0xFD,0xC3,0x95};
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static const ff_asf_guid EVENTID_AudioDescriptorSpanningEvent =
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{0x1C,0xD4,0x7B,0x10,0xDA,0xA6,0x91,0x46,0x83,0x69,0x11,0xB2,0xCD,0xAA,0x28,0x8E};
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static const ff_asf_guid EVENTID_CtxADescriptorSpanningEvent =
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{0xE6,0xA2,0xB4,0x3A,0x47,0x42,0x34,0x4B,0x89,0x6C,0x30,0xAF,0xA5,0xD2,0x1C,0x24};
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static const ff_asf_guid EVENTID_CSDescriptorSpanningEvent =
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{0xD9,0x79,0xE7,0xEf,0xF0,0x97,0x86,0x47,0x80,0x0D,0x95,0xCF,0x50,0x5D,0xDC,0x66};
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static const ff_asf_guid EVENTID_StreamIDSpanningEvent =
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{0x68,0xAB,0xF1,0xCA,0x53,0xE1,0x41,0x4D,0xA6,0xB3,0xA7,0xC9,0x98,0xDB,0x75,0xEE};
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static const ff_asf_guid EVENTID_TeletextSpanningEvent =
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{0x50,0xD9,0x99,0x95,0x33,0x5F,0x17,0x46,0xAF,0x7C,0x1E,0x54,0xB5,0x10,0xDA,0xA3};
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/* Windows media GUIDs */
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@ -307,19 +318,6 @@ static AVStream * parse_media_type(AVFormatContext *s, int sid,
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return NULL;
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}
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/**
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* Read three byte language code
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*/
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static void get_language(ByteIOContext *pb, AVStream *st)
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{
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uint8_t language[4];
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get_buffer(pb, language, 3);
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if (language[0]) {
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language[3] = 0;
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av_metadata_set2(&st->metadata, "language", language, 0);
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}
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}
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enum {
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SEEK_TO_DATA = 0,
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SEEK_TO_BYTE,
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@ -370,27 +368,43 @@ static int parse_chunks(AVFormatContext *s, int mode, int64_t seekts, int *len_p
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consumed += 72 + size;
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}
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}
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} else if (!ff_guidcmp(g, EVENTID_SubtitleSpanningEvent)) {
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} else if (!ff_guidcmp(g, EVENTID_AudioDescriptorSpanningEvent) ||
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!ff_guidcmp(g, EVENTID_CtxADescriptorSpanningEvent) ||
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!ff_guidcmp(g, EVENTID_CSDescriptorSpanningEvent) ||
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!ff_guidcmp(g, EVENTID_StreamIDSpanningEvent) ||
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!ff_guidcmp(g, EVENTID_SubtitleSpanningEvent) ||
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!ff_guidcmp(g, EVENTID_TeletextSpanningEvent)) {
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int stream_index = ff_find_stream_index(s, sid);
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if (stream_index >= 0) {
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AVStream *st = s->streams[stream_index];
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uint8_t buf[258];
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const uint8_t *pbuf = buf;
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int buf_size;
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url_fskip(pb, 10);
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get_language(pb, st);
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url_fskip(pb, 1);
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url_fskip(pb, 8);
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consumed += 8;
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if (!ff_guidcmp(g, EVENTID_CtxADescriptorSpanningEvent) ||
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!ff_guidcmp(g, EVENTID_CSDescriptorSpanningEvent)) {
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url_fskip(pb, 6);
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consumed += 6;
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}
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st->codec->extradata = av_malloc(4);
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if (!st->codec->extradata)
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return AVERROR(ENOMEM);
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st->codec->extradata_size = get_buffer(pb, st->codec->extradata, 4);
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consumed += 18;
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buf_size = FFMIN(len - consumed, sizeof(buf));
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get_buffer(pb, buf, buf_size);
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consumed += buf_size;
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ff_parse_mpeg2_descriptor(s, st, 0, &pbuf, buf + buf_size, 0, 0, 0, 0);
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}
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} else if (!ff_guidcmp(g, EVENTID_LanguageSpanningEvent)) {
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int stream_index = ff_find_stream_index(s, sid);
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if (stream_index >= 0) {
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AVStream *st = s->streams[stream_index];
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uint8_t language[4];
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url_fskip(pb, 12);
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get_language(pb, st);
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get_buffer(pb, language, 3);
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if (language[0]) {
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language[3] = 0;
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av_metadata_set2(&st->metadata, "language", language, 0);
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}
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consumed += 15;
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}
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} else if (!ff_guidcmp(g, timestamp_guid)) {
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@ -419,18 +433,14 @@ static int parse_chunks(AVFormatContext *s, int mode, int64_t seekts, int *len_p
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!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}) ||
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!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}) ||
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!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}) ||
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!ff_guidcmp(g, /* EVENTID_AudioDescriptorSpanningEvent */ (const ff_asf_guid){0x1C,0xD4,0x7B,0x10,0xDA,0xA6,0x91,0x46,0x83,0x69,0x11,0xB2,0xCD,0xAA,0x28,0x8E}) ||
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!ff_guidcmp(g, /* EVENTID_AudioTypeSpanningEvent */ (const ff_asf_guid){0xBE,0xBF,0x1C,0x50,0x49,0xB8,0xCE,0x42,0x9B,0xE9,0x3D,0xB8,0x69,0xFB,0x82,0xB3}) ||
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!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}) ||
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!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}) ||
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!ff_guidcmp(g, /* EVENTID_ChannelTypeSpanningEvent */ (const ff_asf_guid){0x51,0x1D,0xAB,0x72,0xD2,0x87,0x9B,0x48,0xBA,0x11,0x0E,0x08,0xDC,0x21,0x02,0x43}) ||
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!ff_guidcmp(g, /* EVENTID_CtxADescriptorSpanningEvent */ (const ff_asf_guid){0xE6,0xA2,0xB4,0x3A,0x47,0x42,0x34,0x4B,0x89,0x6C,0x30,0xAF,0xA5,0xD2,0x1C,0x24}) ||
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!ff_guidcmp(g, /* EVENTID_DVBScramblingControlSpanningEvent */ (const ff_asf_guid){0xC4,0xE1,0xD4,0x4B,0xA1,0x90,0x09,0x41,0x82,0x36,0x27,0xF0,0x0E,0x7D,0xCC,0x5B}) ||
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!ff_guidcmp(g, /* EVENTID_PIDListSpanningEvent */ (const ff_asf_guid){0x65,0x8F,0xFC,0x47,0xBB,0xE2,0x34,0x46,0x9C,0xEF,0xFD,0xBF,0xE6,0x26,0x1D,0x5C}) ||
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!ff_guidcmp(g, /* EVENTID_SignalAndServiceStatusSpanningEvent */ (const ff_asf_guid){0xCB,0xC5,0x68,0x80,0x04,0x3C,0x2B,0x49,0xB4,0x7D,0x03,0x08,0x82,0x0D,0xCE,0x51}) ||
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!ff_guidcmp(g, /* EVENTID_StreamIDSpanningEvent */ (const ff_asf_guid){0x68,0xAB,0xF1,0xCA,0x53,0xE1,0x41,0x4D,0xA6,0xB3,0xA7,0xC9,0x98,0xDB,0x75,0xEE}) ||
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!ff_guidcmp(g, /* EVENTID_StreamTypeSpanningEvent */ (const ff_asf_guid){0xBC,0x2E,0xAF,0x82,0xA6,0x30,0x64,0x42,0xA8,0x0B,0xAD,0x2E,0x13,0x72,0xAC,0x60}) ||
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!ff_guidcmp(g, /* EVENTID_TeletextSpanningEvent */ (const ff_asf_guid){0x50,0xD9,0x99,0x95,0x33,0x5F,0x17,0x46,0xAF,0x7C,0x1E,0x54,0xB5,0x10,0xDA,0xA3}) ||
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!ff_guidcmp(g, (const ff_asf_guid){0x1E,0xBE,0xC3,0xC5,0x43,0x92,0xDC,0x11,0x85,0xE5,0x00,0x12,0x3F,0x6F,0x73,0xB9}) ||
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!ff_guidcmp(g, (const ff_asf_guid){0x3B,0x86,0xA2,0xB1,0xEB,0x1E,0xC3,0x44,0x8C,0x88,0x1C,0xA3,0xFF,0xE3,0xE7,0x6A}) ||
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!ff_guidcmp(g, (const ff_asf_guid){0x4E,0x7F,0x4C,0x5B,0xC4,0xD0,0x38,0x4B,0xA8,0x3E,0x21,0x7F,0x7B,0xBF,0x52,0xE7}) ||
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