[FFmpeg-trac] #3022(avcodec:new): Encode transparency to flv1

FFmpeg trac at avcodec.org
Wed Oct 2 13:43:31 CEST 2013


#3022: Encode transparency to flv1
---------------------------------------+---------------------------------
               Reporter:  cehoyos      |                  Owner:
                   Type:  enhancement  |                 Status:  new
               Priority:  wish         |              Component:  avcodec
                Version:  git-master   |               Keywords:  flv
             Blocked By:               |               Blocking:
Reproduced by developer:  0            |  Analyzed by developer:  0
---------------------------------------+---------------------------------
 http://thread.gmane.org/gmane.comp.video.ffmpeg.user/48140

 {{{
 $ ffmpeg -i tests/lena.pnm -pix_fmt yuva420p out.flv
 ffmpeg version N-56801-g286beeb Copyright (c) 2000-2013 the FFmpeg
 developers
   built on Oct  2 2013 11:26:12 with gcc 4.3 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      52. 46.100 / 52. 46.100
   libavcodec     55. 33.101 / 55. 33.101
   libavformat    55. 18.104 / 55. 18.104
   libavdevice    55.  3.100 / 55.  3.100
   libavfilter     3. 88.100 /  3. 88.100
   libswscale      2.  5.100 /  2.  5.100
   libswresample   0. 17.103 /  0. 17.103
   libpostproc    52.  3.100 / 52.  3.100
 Input #0, image2, from 'tests/lena.pnm':
   Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: ppm, rgb24, 256x256, 25 tbr, 25 tbn, 25 tbc
 Incompatible pixel format 'yuva420p' for codec 'flv', auto-selecting
 format 'yuv420p'
 Output #0, flv, to 'out.flv':
   Metadata:
     encoder         : Lavf55.18.104
     Stream #0:0: Video: flv1 (flv) ([2][0][0][0] / 0x0002), yuv420p,
 256x256, q=2-31, 200 kb/s, 1k tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (ppm -> flv)
 Press [q] to stop, [?] for help
 frame=    1 fps=0.0 q=3.8 Lsize=      13kB time=00:00:00.04
 bitrate=2737.2kbits/s
 video:13kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 1.694160%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/3022>
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