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support D-10, XDCAM, fix ebu_small_d10_50_audio_resampling_problem.mxf, xdcam-pal-d10-imx50.mxf 

Originally committed as revision 6561 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2006-10-05 09:01:04 +00:00
parent 9933dc7168
commit 885e691aaf
1 changed files with 48 additions and 4 deletions
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52
libavformat/mxf.c
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@ -218,6 +218,35 @@ static int mxf_get_stream_index(AVFormatContext *s, KLVPacket *klv)
return s->nb_streams == 1 ? 0 : -1;
}
/* XXX: use AVBitStreamFilter */
static int mxf_get_d10_aes3_packet(ByteIOContext *pb, AVStream *st, AVPacket *pkt, int64_t length)
{
uint8_t buffer[61444];
uint8_t *buf_ptr, *end_ptr, *data_ptr;
if (length > 61444) /* worst case PAL 1920 samples 8 channels */
return -1;
get_buffer(pb, buffer, length);
av_new_packet(pkt, length);
data_ptr = pkt->data;
end_ptr = buffer + length;
buf_ptr = buffer + 4; /* skip SMPTE 331M header */
for (; buf_ptr < end_ptr; buf_ptr += 4) {
if (st->codec->bits_per_sample == 24) {
data_ptr[0] = (buf_ptr[2] >> 4) | ((buf_ptr[3] & 0x0f) << 4);
data_ptr[1] = (buf_ptr[1] >> 4) | ((buf_ptr[2] & 0x0f) << 4);
data_ptr[2] = (buf_ptr[0] >> 4) | ((buf_ptr[1] & 0x0f) << 4);
data_ptr += 3;
} else {
data_ptr[0] = (buf_ptr[2] >> 4) | ((buf_ptr[3] & 0x0f) << 4);
data_ptr[1] = (buf_ptr[1] >> 4) | ((buf_ptr[2] & 0x0f) << 4);
data_ptr += 2;
}
}
pkt->size = data_ptr - pkt->data;
return 0;
}
static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt)
{
KLVPacket klv;
@ -231,9 +260,21 @@ static int mxf_read_packet(AVFormatContext *s, AVPacket *pkt)
PRINT_KEY("read packet", klv.key);
#endif
if (IS_KLV_KEY(klv.key, mxf_essence_element_key)) {
av_get_packet(&s->pb, pkt, klv.length);
pkt->stream_index = mxf_get_stream_index(s, &klv);
return pkt->stream_index == -1 ? -1 : 0;
int index = mxf_get_stream_index(s, &klv);
if (index < 0) {
av_log(s, AV_LOG_ERROR, "error getting stream index\n");
return -1;
}
/* check for 8 channels AES3 element */
if (klv.key[12] == 0x06 && klv.key[13] == 0x01 && klv.key[14] == 0x10) {
if (mxf_get_d10_aes3_packet(&s->pb, s->streams[index], pkt, klv.length) < 0) {
av_log(s, AV_LOG_ERROR, "error reading D-10 aes3 frame\n");
return -1;
}
} else
av_get_packet(&s->pb, pkt, klv.length);
pkt->stream_index = index;
return 0;
} else
url_fskip(&s->pb, klv.length);
}
@ -669,7 +710,8 @@ static const MXFCodecUL mxf_sound_essence_container_uls[] = {
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x40,0x01 }, CODEC_ID_MP2, Frame }, /* MPEG-ES Frame wrapped, 0x40 ??? stream id */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0xc0,0x01 }, CODEC_ID_MP2, Frame }, /* MPEG-ES Frame wrapped, 0xc0 MPA stream id */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0xc0,0x02 }, CODEC_ID_MP2, Clip }, /* MPEG-ES Clip wrapped, 0xc0 MPA stream id */
//{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, CODEC_ID_PCM_AES3, Frame }, /* D-10 Mapping 30Mbps PAL Extended Template */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x05,0x01 }, CODEC_ID_PCM_S16BE, Frame }, /* D-10 Mapping 30Mbps PAL Extended Template */
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x01,0x01,0x01 }, CODEC_ID_PCM_S16BE, Frame }, /* D-10 Mapping 50Mbps PAL Extended Template */
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_ID_NONE, Frame },
};
@ -866,6 +908,8 @@ static int mxf_parse_structural_metadata(MXFContext *mxf)
st->codec->codec_id = CODEC_ID_PCM_S24BE;
else if (descriptor->bits_per_sample == 32)
st->codec->codec_id = CODEC_ID_PCM_S32BE;
if (descriptor->essence_container_ul[14] == 0x01) /* D-10 Mapping */
st->codec->channels = 8; /* force channels to 8 */
} else if (st->codec->codec_id == CODEC_ID_MP2) {
st->need_parsing = 1;
}