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mxfdec: Add intra_only flag to MXFTrack 

This allows future assumptions to be made without affecting non-intra files.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Tomas Härdin 2012-03-07 10:52:39 +01:00 committed by Michael Niedermayer
parent 8c7721e709
commit f6daa9f4f6
1 changed files with 23 additions and 0 deletions
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23
libavformat/mxfdec.c
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@ -121,6 +121,7 @@ typedef struct {
int track_id;
uint8_t track_number[4];
AVRational edit_rate;
int intra_only;
} MXFTrack;
typedef struct {
@ -893,6 +894,19 @@ static const MXFCodecUL mxf_picture_essence_container_uls[] = {
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x05,0x00,0x00 }, 14, CODEC_ID_RAWVIDEO }, /* Uncompressed Picture */
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, CODEC_ID_NONE },
};
/* EC ULs for intra-only formats */
static const MXFCodecUL mxf_intra_only_essence_container_uls[] = {
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x00,0x00 }, 14, CODEC_ID_MPEG2VIDEO }, /* MXF-GC SMPTE D-10 Mappings */
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, CODEC_ID_NONE },
};
/* intra-only PictureEssenceCoding ULs, where no corresponding EC UL exists */
static const MXFCodecUL mxf_intra_only_picture_essence_coding_uls[] = {
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x0A,0x04,0x01,0x02,0x02,0x01,0x32,0x00,0x00 }, 14, CODEC_ID_H264 }, /* H.264/MPEG-4 AVC Intra Profiles */
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, 0, CODEC_ID_NONE },
};
static const MXFCodecUL mxf_sound_essence_container_uls[] = {
// sound essence container uls
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 }, 14, CODEC_ID_PCM_S16LE }, /* BWF Frame wrapped */
@ -1252,6 +1266,14 @@ finish_decoding_index:
return ret;
}
static int mxf_is_intra_only(MXFDescriptor *descriptor)
{
return mxf_get_codec_ul(mxf_intra_only_essence_container_uls,
&descriptor->essence_container_ul)->id != CODEC_ID_NONE ||
mxf_get_codec_ul(mxf_intra_only_picture_essence_coding_uls,
&descriptor->essence_codec_ul)->id != CODEC_ID_NONE;
}
static int mxf_parse_structural_metadata(MXFContext *mxf)
{
MXFPackage *material_package = NULL;
@ -1408,6 +1430,7 @@ static int mxf_parse_structural_metadata(MXFContext *mxf)
st->codec->extradata_size = descriptor->extradata_size;
}
if (st->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
source_track->intra_only = mxf_is_intra_only(descriptor);
container_ul = mxf_get_codec_ul(mxf_picture_essence_container_uls, essence_container_ul);
if (st->codec->codec_id == CODEC_ID_NONE)
st->codec->codec_id = container_ul->id;