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| author | Matthieu Bouron <matthieu.bouron@gmail.com> | 2012-05-27 14:21:41 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-06-06 17:13:28 +0200 |
| commit | f6d952f584df3eaa4a3aa4e4175150976178493d (patch) | |
| tree | 7cda4c6da5df8768c4157d2a1a0592a14025a26b /libavformat/mxfenc.c | |
| parent | 93147daf59b096f3d6ad6d9e8d8c11c293e425d2 (diff) | |
| download | ffmpeg-f6d952f584df3eaa4a3aa4e4175150976178493d.tar.gz | |
mxfenc: write optional field dominance flag in picture description
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/mxfenc.c')
| -rw-r--r-- | libavformat/mxfenc.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c index b2fe736ff2..5597dd2c33 100644 --- a/libavformat/mxfenc.c +++ b/libavformat/mxfenc.c @@ -73,6 +73,7 @@ typedef struct { const UID *codec_ul; int order; ///< interleaving order if dts are equal int interlaced; ///< whether picture is interlaced + int field_dominance; ///< tff=1, bff=2 int temporal_reordering; AVRational aspect_ratio; ///< display aspect ratio int closed_gop; ///< gop is closed, used in mpeg-2 frame parsing @@ -284,6 +285,7 @@ static const MXFLocalTagPair mxf_local_tag_batch[] = { { 0x3208, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x0B,0x00,0x00,0x00}}, /* Display Height */ { 0x320E, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x01,0x01,0x01,0x00,0x00,0x00}}, /* Aspect Ratio */ { 0x3201, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x06,0x01,0x00,0x00,0x00,0x00}}, /* Picture Essence Coding */ + { 0x3212, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x03,0x01,0x06,0x00,0x00,0x00}}, /* Field Dominance (Opt) */ // CDCI Picture Essence Descriptor { 0x3301, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x02,0x04,0x01,0x05,0x03,0x0A,0x00,0x00,0x00}}, /* Component Depth */ { 0x3302, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x05,0x00,0x00,0x00}}, /* Horizontal Subsampling */ @@ -789,8 +791,11 @@ static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID ke int stored_height = (st->codec->height+15)/16*16; int display_height; int f1, f2; + unsigned desc_size = size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20; + if (sc->interlaced && sc->field_dominance) + desc_size += 5; - mxf_write_generic_desc(s, st, key, size+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20); + mxf_write_generic_desc(s, st, key, desc_size); mxf_write_local_tag(pb, 4, 0x3203); avio_wb32(pb, st->codec->width); @@ -852,6 +857,12 @@ static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID ke mxf_write_local_tag(pb, 16, 0x3201); avio_write(pb, *sc->codec_ul, 16); + + if (sc->interlaced && sc->field_dominance) { + mxf_write_local_tag(pb, 1, 0x3212); + avio_w8(pb, sc->field_dominance); + } + } static void mxf_write_cdci_desc(AVFormatContext *s, AVStream *st) @@ -1328,6 +1339,8 @@ static int mxf_parse_mpeg2_frame(AVFormatContext *s, AVStream *st, st->codec->level = pkt->data[i+2] >> 4; } else if (i + 5 < pkt->size && (pkt->data[i+1] & 0xf0) == 0x80) { // pict coding ext sc->interlaced = !(pkt->data[i+5] & 0x80); // progressive frame + if (sc->interlaced) + sc->field_dominance = 1 + !(pkt->data[i+4] & 0x80); // top field first break; } } else if (c == 0x1b8) { // gop |