[FFmpeg-trac] #18(FFmpeg:open): support lvf h264 file

FFmpeg trac at avcodec.org
Fri Mar 25 09:22:56 CET 2011


#18: support lvf h264 file
------------------------+----------------------
Reporter:  compn        |       Owner:  michael
    Type:  enhancement  |      Status:  open
Priority:  wish         |   Component:  FFmpeg
 Version:  git          |  Resolution:
Keywords:               |  Blocked By:
Blocking:               |  Reproduced:  1
Analyzed:  0            |
------------------------+----------------------
Changes (by cehoyos):

 * status:  new => open
 * reproduced:  0 => 1


Comment:

 Decoded frames are completely grey, mplayer -demuxer h264es shows a few
 unrecognisable artefacts.
 {{{
 ffmpeg -i test.lvf -f null -
 FFmpeg version git-N-28626-g797ef67, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Mar 25 2011 09:09:01 with gcc 4.5.2
   configuration: --cc=/usr/local/gcc-4.5.2/bin/gcc --enable-gpl
   libavutil    50. 40. 0 / 50. 40. 0
   libavcodec   52.114. 0 / 52.114. 0
   libavformat  52.103. 0 / 52.103. 0
   libavdevice  52.  3. 0 / 52.  3. 0
   libavfilter   1. 76. 0 /  1. 76. 0
   libswscale    0. 12. 0 /  0. 12. 0
 [h264 @ 0x11f0fd0] concealing 330 DC, 330 AC, 330 MV errors
     Last message repeated 5 times
 [h264 @ 0x11ee650] max_analyze_duration reached
 [h264 @ 0x11ee650] Estimating duration from bitrate, this may be
 inaccurate

 Seems stream 0 codec frame rate differs from container frame rate: 50.00
 (50/1) -> 25.00 (50/2)
 Input #0, h264, from 'test.lvf':
   Duration: N/A, bitrate: N/A
     Stream #0.0: Video: h264 (Baseline), yuv420p, 352x240, 25 fps, 25 tbr,
 1200k tbn, 50 tbc
 [buffer @ 0x14a9d90] w:352 h:240 pixfmt:yuv420p
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf52.103.0
     Stream #0.0: Video: rawvideo, yuv420p, 352x240, q=2-31, 200 kb/s, 90k
 tbn, 25 tbc
 Stream mapping:
   Stream #0.0 -> #0.0
 Press ctrl-c to stop encoding
 [h264 @ 0x11f0fd0] concealing 330 DC, 330 AC, 330 MV errors
     Last message repeated 629 times  -0kB time=19.00 bitrate=  -0.0kbits/s
 [h264 @ 0x11f0fd0] concealing 166 DC, 166 AC, 166 MV errors
 frame=  631 fps=  0 q=0.0 Lsize=      -0kB time=25.24 bitrate=
 -0.0kbits/s
 video:0kB audio:0kB global headers:0kB muxing overhead -inf%
 }}}

-- 
Ticket URL: <http://avcodec.org/trac/ffmpeg/ticket/18#comment:1>
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