[MEncoder-users] edit list not starting at 0, a/v desync might occur, patch welcome

[belcampo]

double wrote:
> Hi,
> 
> Is there any chance to demux a video not via "libavformat" but
> via windows dll?
> The transcoding throws an "edit list not starting at 0, a/v desync
> might occur, patch welcome" error.
> 
> Steps to reproduce the error:
> wget http://www.doppelbauer.name/desync.mov
> mencoder desync.mov -ovc copy -oac pcm -o /dev/null
> 
> Output below.
> 
> Thanks a lot
> Markus
> 
> 
> MEncoder dev-SVN-r27896-4.2.4 (C) 2000-2008 MPlayer Team
> CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 3400+ (Family: 15, Model: 
> 75, Stepping: 2)
> CPUflags: Type: 15 MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
> Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE SSE2
> success: format: 0  data: 0x0 - 0x2cd1bbf
> libavformat file format detected.
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x8df4380]edit list not starting at 0, a/v 
> desync might occur, patch welcome
> [mov,mp4,m4a,3gp,3g2,mj2 @ 0x8df4380]edit list not starting at 0, a/v 
> desync might occur, patch welcome
> [lavf] Audio stream found, -aid 0
> [lavf] Video stream found, -vid 1
> VIDEO:  [avc1]  960x540  24bpp  23.976 fps    0.0 kbps ( 0.0 kbyte/s)
> [V] filefmt:44  fourcc:0x31637661  size:960x540  fps:23.976  ftime:=0.0417
> ==========================================================================
> Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
> AUDIO: 44100 Hz, 2 ch, s16le, 0.0 kbit/0.00% (ratio: 0->176400)
> Selected audio codec: [ffadpcmimaqt] afm: ffmpeg (FFmpeg QT IMA ADPCM audio)
> ==========================================================================
> videocodec: framecopy (960x540 24bpp fourcc=31637661)
> Writing header...
> ODML: Aspect information not (yet?) available or unspecified, not 
> writing vprp header.
> Writing header...
> ODML: Aspect information not (yet?) available or unspecified, not 
> writing vprp header.
> [ ... snip ... ]
> Writing index...
> Writing header...
> ODML: Aspect information not (yet?) available or unspecified, not 
> writing vprp header.
> Video stream: 2449.350 kbit/s  (306168 B/s)  size: 36994081 bytes  
> 120.829 secs  3217 frames
> Audio stream: 1411.200 kbit/s  (176400 B/s)  size: 21432600 bytes  
> 121.500 secs
> 
> 
> 
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> MEncoder-users at mplayerhq.hu
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What do you want to achieve?
Demuxing gets you 1 rawvideo and 1 rawaudio file, where you could 
transcode video form ... to ..., audio from ... to ... and mux together 
again to a new video/audiofile in a mov mp4 mkv container.