#3707: Support decoding transparency information in dnxhd streams -------------------------------------+------------------------------------- Reporter: cehoyos | Owner: Type: | Status: new enhancement | Component: avcodec Priority: wish | Keywords: dnxhd alpha Version: git- | Blocking: master | Analyzed by developer: 0 Blocked By: | Reproduced by developer: 0 | -------------------------------------+------------------------------------- http://thread.gmane.org/gmane.comp.video.ffmpeg.libav.user/13205 A user uploaded a dnxhd sample that contains transparency information (the black background is supposed to be transparent), FFmpeg reports yuv422p10le. {{{ $ ffmpeg -i Untitled_dnhd.mov ffmpeg version N-63852-gf341340 Copyright (c) 2000-2014 the FFmpeg developers built on Jun 9 2014 16:59:00 with gcc 4.7 (SUSE Linux) configuration: --enable-gpl libavutil 52. 89.100 / 52. 89.100 libavcodec 55. 66.100 / 55. 66.100 libavformat 55. 42.101 / 55. 42.101 libavdevice 55. 13.101 / 55. 13.101 libavfilter 4. 7.100 / 4. 7.100 libswscale 2. 6.100 / 2. 6.100 libswresample 0. 19.100 / 0. 19.100 libpostproc 52. 3.100 / 52. 3.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Untitled_dnhd.mov': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt creation_time : 2014-05-29 21:36:09 Duration: 00:00:01.03, start: 0.000000, bitrate: 842317 kb/s Stream #0:0(eng): Video: dnxhd (AVdn / 0x6E645641), yuv422p10le, 1920x1080, 841432 kb/s, 29.97 fps, 29.97 tbr, 1000k tbn, 1000k tbc (default) Metadata: creation_time : 2014-05-29 21:36:09 handler_name : Apple Alias Data Handler encoder : DNxHD 709 At least one output file must be specified }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/3707> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker