diff options
| author | Alok Ahuja <waveletcoeff@gmail.com> | 2011-05-28 08:12:22 +0200 |
|---|---|---|
| committer | Reinhard Tartler <siretart@tauware.de> | 2011-05-28 12:15:55 +0200 |
| commit | 945dda41a2085b3c8fb5cf99026c224aa3d2cbfa (patch) | |
| tree | 4946dfc597cff0b5c2e8a599d933d629070d065a /libavformat | |
| parent | f91ccb1df6fe6d043bd88eabc916be1093b6677b (diff) | |
webm: support stereo videos in matroska/webm muxer
Create a stereo_mode metadata tag to specify the stereo 3d video layout
using the StereoMode tag in a matroska/webm video track.
Diffstat (limited to 'libavformat')
| -rw-r--r-- | libavformat/matroska.h | 20 | ||||
| -rw-r--r-- | libavformat/matroskaenc.c | 19 |
2 files changed, 38 insertions, 1 deletions
diff --git a/libavformat/matroska.h b/libavformat/matroska.h index 45d9747d39..8e747e6a9c 100644 --- a/libavformat/matroska.h +++ b/libavformat/matroska.h @@ -111,7 +111,7 @@ #define MATROSKA_ID_VIDEOPIXELCROPR 0x54DD #define MATROSKA_ID_VIDEODISPLAYUNIT 0x54B2 #define MATROSKA_ID_VIDEOFLAGINTERLACED 0x9A -#define MATROSKA_ID_VIDEOSTEREOMODE 0x53B9 +#define MATROSKA_ID_VIDEOSTEREOMODE 0x53B8 #define MATROSKA_ID_VIDEOASPECTRATIO 0x54B3 #define MATROSKA_ID_VIDEOCOLORSPACE 0x2EB524 @@ -218,6 +218,24 @@ typedef enum { MATROSKA_TRACK_ENCODING_COMP_HEADERSTRIP = 3, } MatroskaTrackEncodingCompAlgo; +typedef enum { + MATROSKA_VIDEO_STEREOMODE_TYPE_MONO = 0, + MATROSKA_VIDEO_STEREOMODE_TYPE_LEFT_RIGHT = 1, + MATROSKA_VIDEO_STEREOMODE_TYPE_BOTTOM_TOP = 2, + MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM = 3, + MATROSKA_VIDEO_STEREOMODE_TYPE_CHECKERBOARD_RL = 4, + MATROSKA_VIDEO_STEREOMODE_TYPE_CHECKERBOARD_LR = 5, + MATROSKA_VIDEO_STEREOMODE_TYPE_ROW_INTERLEAVED_RL = 6, + MATROSKA_VIDEO_STEREOMODE_TYPE_ROW_INTERLEAVED_LR = 7, + MATROSKA_VIDEO_STEREOMODE_TYPE_COL_INTERLEAVED_RL = 8, + MATROSKA_VIDEO_STEREOMODE_TYPE_COL_INTERLEAVED_LR = 9, + MATROSKA_VIDEO_STEREOMODE_TYPE_ANAGLYPH_CYAN_RED = 10, + MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT = 11, + MATROSKA_VIDEO_STEREOMODE_TYPE_ANAGLYPH_GREEN_MAG = 12, + MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_LR = 13, + MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_RL = 14, +} MatroskaVideoStereoModeType; + /* * Matroska Codec IDs, strings */ diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c index 1bbabc9ff4..ba2ce28e17 100644 --- a/libavformat/matroskaenc.c +++ b/libavformat/matroskaenc.c @@ -586,6 +586,25 @@ static int mkv_write_tracks(AVFormatContext *s) // XXX: interlace flag? put_ebml_uint (pb, MATROSKA_ID_VIDEOPIXELWIDTH , codec->width); put_ebml_uint (pb, MATROSKA_ID_VIDEOPIXELHEIGHT, codec->height); + if ((tag = av_metadata_get(s->metadata, "stereo_mode", NULL, 0))) { + uint8_t stereo_fmt = atoi(tag->value); + int valid_fmt = 0; + + switch (mkv->mode) { + case MODE_WEBM: + if (stereo_fmt <= MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM + || stereo_fmt == MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT) + valid_fmt = 1; + break; + case MODE_MATROSKAv2: + if (stereo_fmt <= MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_RL) + valid_fmt = 1; + break; + } + + if (valid_fmt) + put_ebml_uint (pb, MATROSKA_ID_VIDEOSTEREOMODE, stereo_fmt); + } if (st->sample_aspect_ratio.num) { int d_width = codec->width*av_q2d(st->sample_aspect_ratio); put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , d_width); |