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authorMichael Niedermayer <michaelni@gmx.at>2015-05-19 02:11:09 +0300
committerMichael Niedermayer <michaelni@gmx.at>2015-05-22 16:30:31 +0300
commit3b176af001dd608ddf55fbe2d6b230e71d8b1909 (patch)
tree083164d3ba4f4d0df3193b07ad6bc10f2a902ca5 /libavformat/mxfenc.c
parenta45cf639e6fb8c86aff91a00970060cd0be401c9 (diff)
avformat/mxfenc: Add color siting element
Previous version Reviewed-by: tim nicholson <nichot20@yahoo.com> Previous version Reviewed-by: Tomas Härdin <tomas.hardin@codemill.se> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavformat/mxfenc.c')
-rw-r--r--libavformat/mxfenc.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/libavformat/mxfenc.c b/libavformat/mxfenc.c
index 659c34fa73..adac69efd2 100644
--- a/libavformat/mxfenc.c
+++ b/libavformat/mxfenc.c
@@ -79,6 +79,7 @@ typedef struct MXFStreamContext {
int interlaced; ///< whether picture is interlaced
int field_dominance; ///< tff=1, bff=2
int component_depth;
+ int color_siting;
int h_chroma_sub_sample;
int temporal_reordering;
AVRational aspect_ratio; ///< display aspect ratio
@@ -416,6 +417,7 @@ static const MXFLocalTagPair mxf_local_tag_batch[] = {
// 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 */
+ { 0x3303, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x01,0x04,0x01,0x05,0x01,0x06,0x00,0x00,0x00}}, /* Color Siting */
// Generic Sound Essence Descriptor
{ 0x3D02, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x04,0x04,0x02,0x03,0x01,0x04,0x00,0x00,0x00}}, /* Locked/Unlocked */
{ 0x3D03, {0x06,0x0E,0x2B,0x34,0x01,0x01,0x01,0x05,0x04,0x02,0x03,0x01,0x01,0x01,0x00,0x00}}, /* Audio sampling rate */
@@ -993,7 +995,7 @@ 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+8+5+16+sc->interlaced*4+12+20;
+ unsigned desc_size = size+8+8+8+8+8+8+8+5+16+sc->interlaced*4+12+20+5;
if (sc->interlaced && sc->field_dominance)
desc_size += 5;
@@ -1030,6 +1032,10 @@ static void mxf_write_cdci_common(AVFormatContext *s, AVStream *st, const UID ke
mxf_write_local_tag(pb, 4, 0x3302);
avio_wb32(pb, sc->h_chroma_sub_sample);
+ // color siting
+ mxf_write_local_tag(pb, 1, 0x3303);
+ avio_w8(pb, sc->color_siting);
+
// frame layout
mxf_write_local_tag(pb, 1, 0x320C);
avio_w8(pb, sc->interlaced);
@@ -2037,11 +2043,18 @@ static int mxf_write_header(AVFormatContext *s)
// Default component depth to 8
sc->component_depth = 8;
sc->h_chroma_sub_sample = 2;
+ sc->color_siting = 0xFF;
if (pix_desc) {
sc->component_depth = pix_desc->comp[0].depth_minus1 + 1;
sc->h_chroma_sub_sample = 1 << pix_desc->log2_chroma_w;
}
+ switch (ff_choose_chroma_location(s, st)) {
+ case AVCHROMA_LOC_TOPLEFT: sc->color_siting = 0; break;
+ case AVCHROMA_LOC_LEFT: sc->color_siting = 6; break;
+ case AVCHROMA_LOC_TOP: sc->color_siting = 1; break;
+ case AVCHROMA_LOC_CENTER: sc->color_siting = 3; break;
+ }
mxf->timecode_base = (tbc.den + tbc.num/2) / tbc.num;
spf = ff_mxf_get_samples_per_frame(s, tbc);