From d4ae8ac92f619507aadd021bb67b517d39d3a36f Mon Sep 17 00:00:00 2001 From: Vittorio Giovara Date: Tue, 12 Aug 2014 22:28:49 +0100 Subject: matroskadec: parse stereo mode on decoding Convert the Matroska stereo format to the Stereo3D format, and add a Stereo3D side data to the stream. Bump the doctype version supported. Bug-Id: 728 / https://bugs.debian.org/757185 --- libavformat/matroska.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) (limited to 'libavformat/matroska.c') diff --git a/libavformat/matroska.c b/libavformat/matroska.c index 9628abcda1..237f26f49c 100644 --- a/libavformat/matroska.c +++ b/libavformat/matroska.c @@ -19,6 +19,8 @@ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +#include "libavutil/stereo3d.h" + #include "matroska.h" const CodecTags ff_mkv_codec_tags[]={ @@ -103,3 +105,65 @@ const AVMetadataConv ff_mkv_metadata_conv[] = { { "PART_NUMBER" , "track" }, { 0 } }; + +int ff_mkv_stereo3d_conv(AVStream *st, MatroskaVideoStereoModeType stereo_mode) +{ + AVPacketSideData *sd, *tmp; + AVStereo3D *stereo; + + stereo = av_stereo3d_alloc(); + if (!stereo) + return AVERROR(ENOMEM); + + tmp = av_realloc_array(st->side_data, st->nb_side_data + 1, sizeof(*tmp)); + if (!tmp) { + av_freep(&stereo); + return AVERROR(ENOMEM); + } + st->side_data = tmp; + st->nb_side_data++; + + sd = &st->side_data[st->nb_side_data - 1]; + sd->type = AV_PKT_DATA_STEREO3D; + sd->data = (uint8_t *)stereo; + sd->size = sizeof(*stereo); + + // note: the missing breaks are intentional + switch (stereo_mode) { + case MATROSKA_VIDEO_STEREOMODE_TYPE_MONO: + stereo->type = AV_STEREO3D_2D; + break; + case MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT: + stereo->flags |= AV_STEREO3D_FLAG_INVERT; + case MATROSKA_VIDEO_STEREOMODE_TYPE_LEFT_RIGHT: + stereo->type = AV_STEREO3D_SIDEBYSIDE; + break; + case MATROSKA_VIDEO_STEREOMODE_TYPE_BOTTOM_TOP: + stereo->flags |= AV_STEREO3D_FLAG_INVERT; + case MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM: + stereo->type = AV_STEREO3D_TOPBOTTOM; + break; + case MATROSKA_VIDEO_STEREOMODE_TYPE_CHECKERBOARD_RL: + stereo->flags |= AV_STEREO3D_FLAG_INVERT; + case MATROSKA_VIDEO_STEREOMODE_TYPE_CHECKERBOARD_LR: + stereo->type = AV_STEREO3D_CHECKERBOARD; + break; + case MATROSKA_VIDEO_STEREOMODE_TYPE_ROW_INTERLEAVED_RL: + stereo->flags |= AV_STEREO3D_FLAG_INVERT; + case MATROSKA_VIDEO_STEREOMODE_TYPE_ROW_INTERLEAVED_LR: + stereo->type = AV_STEREO3D_LINES; + break; + case MATROSKA_VIDEO_STEREOMODE_TYPE_COL_INTERLEAVED_RL: + stereo->flags |= AV_STEREO3D_FLAG_INVERT; + case MATROSKA_VIDEO_STEREOMODE_TYPE_COL_INTERLEAVED_LR: + stereo->type = AV_STEREO3D_COLUMNS; + break; + case MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_RL: + stereo->flags |= AV_STEREO3D_FLAG_INVERT; + case MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_LR: + stereo->type = AV_STEREO3D_FRAMESEQUENCE; + break; + } + + return 0; +} -- cgit v1.2.3