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merge descriptor write table with essence container uls table and simplify 

Originally committed as revision 15109 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2008-08-31 04:07:41 +00:00
parent b6fa8a8af8
commit f2ebd15952
1 changed files with 23 additions and 28 deletions
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51
libavformat/mxfenc.c
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@ -43,6 +43,7 @@ typedef struct {
const UID *essence_container_ul;
const UID *codec_ul;
int64_t duration;
void (*write_desc)();
} MXFStreamContext;
typedef struct {
@ -50,18 +51,25 @@ typedef struct {
UID element_ul;
UID codec_ul;
enum CodecID id;
void (*write_desc)();
} MXFContainerEssencePair;
static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st);
static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st);
static const MXFContainerEssencePair mxf_essence_container_uls[] = {
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x02,0x0D,0x01,0x03,0x01,0x02,0x04,0x60,0x01 },
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x15,0x01,0x05,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 }, CODEC_ID_MPEG2VIDEO },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x03,0x04,0x01,0x02,0x02,0x01,0x00,0x00,0x00 },
CODEC_ID_MPEG2VIDEO, mxf_write_mpegvideo_desc },
{ { 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x0D,0x01,0x03,0x01,0x02,0x06,0x01,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x01,0x02,0x01,0x01,0x0D,0x01,0x03,0x01,0x16,0x01,0x01,0x00 },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 }, CODEC_ID_PCM_S16LE },
{ 0x06,0x0E,0x2B,0x34,0x04,0x01,0x01,0x01,0x04,0x02,0x02,0x01,0x00,0x00,0x00,0x00 },
CODEC_ID_PCM_S16LE, mxf_write_wav_desc },
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, CODEC_ID_NONE },
{ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 },
CODEC_ID_NONE, NULL },
};
typedef struct MXFContext {
@ -71,12 +79,6 @@ typedef struct MXFContext {
sizeof(*mxf_essence_container_uls)];
} MXFContext;
typedef struct {
const UID key;
void (*write)();
enum CodecType type;
} MXFDescriptorWriteTableEntry;
static const uint8_t uuid_base[] = { 0xAD,0xAB,0x44,0x24,0x2f,0x25,0x4d,0xc7,0x92,0xff,0x29,0xbd };
static const uint8_t umid_base[] = { 0x06,0x0A,0x2B,0x34,0x01,0x01,0x01,0x01,0x01,0x01,0x0F,0x00,0x13,0x00,0x00,0x00 };
@ -575,11 +577,11 @@ static void mxf_write_multi_descriptor(AVFormatContext *s)
mxf_write_uuid(pb, SubDescriptor, i);
}
static void mxf_write_generic_desc(ByteIOContext *pb, const MXFDescriptorWriteTableEntry *desc_tbl, AVStream *st)
static void mxf_write_generic_desc(ByteIOContext *pb, AVStream *st, const UID key)
{
MXFStreamContext *sc = st->priv_data;
put_buffer(pb, desc_tbl->key, 16);
put_buffer(pb, key, 16);
klv_encode_ber_length(pb, 108);
mxf_write_local_tag(pb, 16, 0x3C0A);
@ -599,11 +601,14 @@ static void mxf_write_generic_desc(ByteIOContext *pb, const MXFDescriptorWriteTa
put_buffer(pb, *sc->codec_ul, 16);
}
static void mxf_write_mpegvideo_desc(AVFormatContext *s, const MXFDescriptorWriteTableEntry *desc_tbl, AVStream *st)
static const UID mxf_mpegvideo_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 };
static const UID mxf_wav_descriptor_key = { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 };
static void mxf_write_mpegvideo_desc(AVFormatContext *s, AVStream *st)
{
ByteIOContext *pb = s->pb;
mxf_write_generic_desc(pb, desc_tbl, st);
mxf_write_generic_desc(pb, st, mxf_mpegvideo_descriptor_key);
mxf_write_local_tag(pb, 4, 0x3203);
put_be32(pb, st->codec->width);
@ -616,11 +621,11 @@ static void mxf_write_mpegvideo_desc(AVFormatContext *s, const MXFDescriptorWrit
put_be32(pb, st->codec->width * st->sample_aspect_ratio.num);
}
static void mxf_write_wav_desc(AVFormatContext *s, const MXFDescriptorWriteTableEntry *desc_tbl, AVStream *st)
static void mxf_write_wav_desc(AVFormatContext *s, AVStream *st)
{
ByteIOContext *pb = s->pb;
mxf_write_generic_desc(pb, desc_tbl, st);
mxf_write_generic_desc(pb, st, mxf_wav_descriptor_key);
// write audio sampling rate
mxf_write_local_tag(pb, 8, 0x3D03);
@ -634,16 +639,9 @@ static void mxf_write_wav_desc(AVFormatContext *s, const MXFDescriptorWriteTable
put_be32(pb, st->codec->bits_per_sample);
}
static const MXFDescriptorWriteTableEntry mxf_descriptor_write_table[] = {
{ { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x51,0x00 }, mxf_write_mpegvideo_desc, CODEC_ID_MPEG2VIDEO},
{ { 0x06,0x0E,0x2B,0x34,0x02,0x53,0x01,0x01,0x0d,0x01,0x01,0x01,0x01,0x01,0x48,0x00 }, mxf_write_wav_desc, CODEC_ID_PCM_S16LE},
{ { 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 }, NULL, CODEC_ID_NONE},
};
static void mxf_build_structural_metadata(AVFormatContext *s, enum MXFMetadataSetType type)
{
int i;
const MXFDescriptorWriteTableEntry *desc = NULL;
mxf_write_package(s, type);
if (type == SourcePackage)
@ -656,12 +654,8 @@ static void mxf_build_structural_metadata(AVFormatContext *s, enum MXFMetadataSe
mxf_write_structural_component(s, st, type);
if (type == SourcePackage) {
for (desc = mxf_descriptor_write_table; desc->write; desc++) {
if (s->streams[i]->codec->codec_id == desc->type) {
desc->write(s, desc, st);
break;
}
}
MXFStreamContext *sc = st->priv_data;
sc->write_desc(s, st);
}
}
}
@ -812,6 +806,7 @@ static int mxf_write_header(AVFormatContext *s)
memcpy(sc->track_essence_element_key, mxf_essence_container_uls[index].element_ul, 15);
sc->track_essence_element_key[15] = present[index];
PRINT_KEY(s, "track essence element key", sc->track_essence_element_key);
sc->write_desc = mxf_essence_container_uls[index].write_desc;
}
mxf_write_partition(s, 1, header_open_partition_key, 1);