[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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