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add uncompressed picture support

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Originally committed as revision 5853 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2006-07-29 15:19:31 +00:00
parent 8ce2215b23
commit 59b5673853
1 changed files with 28 additions and 0 deletions
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28
libavformat/mxf.c
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@ -583,6 +583,29 @@ static int mxf_read_metadata_multiple_descriptor(MXFContext *mxf, KLVPacket *klv
return -1;
}
static void mxf_read_metadata_pixel_layout(ByteIOContext *pb, MXFDescriptor *descriptor)
{
int code;
do {
code = get_byte(pb);
dprintf("pixel layout: code 0x%x\n", code);
switch (code) {
case 0x52: /* R */
descriptor->bits_per_sample += get_byte(pb);
break;
case 0x47: /* G */
descriptor->bits_per_sample += get_byte(pb);
break;
case 0x42: /* B */
descriptor->bits_per_sample += get_byte(pb);
break;
default:
get_byte(pb);
}
} while (code != 0); /* SMPTE 377M E.2.46 */
}
static int mxf_read_metadata_generic_descriptor(MXFContext *mxf, KLVPacket *klv)
{
ByteIOContext *pb = &mxf->fc->pb;
@ -631,6 +654,9 @@ static int mxf_read_metadata_generic_descriptor(MXFContext *mxf, KLVPacket *klv)
case 0x3D01:
descriptor->bits_per_sample = get_be32(pb);
break;
case 0x3401:
mxf_read_metadata_pixel_layout(pb, descriptor);
break;
default:
url_fskip(pb, size);
}
@ -669,6 +695,7 @@ static const MXFCodecUL mxf_codec_uls[] = {
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x02,0x02,0x00 }, CODEC_ID_DVVIDEO }, /* DVCPRO25 PAL */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x02,0x01,0x02,0x00 }, CODEC_ID_DVVIDEO }, /* DV25 IEC PAL */
//{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x02,0x03,0x01,0x01,0x00 }, CODEC_ID_JPEG2K }, /* JPEG2000 Codestream */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x01,0x02,0x01,0x7F,0x00,0x00,0x00 }, CODEC_ID_RAWVIDEO }, /* Uncompressed */
/* SoundEssenceCompression */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x7F,0x00,0x00,0x00 }, CODEC_ID_PCM_S16LE },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x07,0x04,0x02,0x02,0x01,0x7E,0x00,0x00,0x00 }, CODEC_ID_PCM_S16BE }, /* From Omneon MXF file */
@ -786,6 +813,7 @@ static int mxf_parse_structural_metadata(MXFContext *mxf)
if (st->codec->codec_type == CODEC_TYPE_VIDEO) {
st->codec->width = descriptor->width;
st->codec->height = descriptor->height;
st->codec->bits_per_sample = descriptor->bits_per_sample; /* Uncompressed */
} else if (st->codec->codec_type == CODEC_TYPE_AUDIO) {
st->codec->channels = descriptor->channels;
st->codec->bits_per_sample = descriptor->bits_per_sample;