[MPlayer-users] Advance (ArrowUp and PageUp) upset audio for some movies

[Philip Rhoades]

People,

Some AVIs I can use ArrowUp and PageUp quite happily but with others 
the video advances appropriately but the audio restarts or is otherwise 
retarded - the important lines of the diffs of the output of:

   mplayer -identify -frames 1 -ao null -vo null filename.avi

between working and not working AVIs appear to be:

< VIDEO:  [FMP4]  512x384  24bpp  25.000 fps  800.2 kbps (97.7 kbyte/s)
---
> VIDEO:  [DIVX]  512x384  24bpp  25.000 fps  1496.3 kbps (182.7 
> kbyte/s)

< ID_VIDEO_FORMAT=FMP4
< ID_VIDEO_BITRATE=800208
---
> ID_VIDEO_FORMAT=DIVX
> ID_VIDEO_BITRATE=1496336

< ID_AUDIO_FORMAT=1
< ID_AUDIO_BITRATE=1024000
---
> ID_AUDIO_FORMAT=17
> ID_AUDIO_BITRATE=257760

< Opening audio decoder: [pcm] Uncompressed PCM audio decoder
< AUDIO: 32000 Hz, 2 ch, s16le, 1024.0 kbit/100.00% (ratio: 
128000->128000)
< ID_AUDIO_BITRATE=1024000
---
> Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
> AUDIO: 32000 Hz, 2 ch, s16le, 257.8 kbit/25.17% (ratio: 32220->128000)
> ID_AUDIO_BITRATE=257760

< Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
---
> Selected audio codec: [ffadpcmimawav] afm: ffmpeg (FFmpeg WAV IMA 
> ADPCM audio)

< ID_AUDIO_CODEC=pcm
---
> ID_AUDIO_CODEC=ffadpcmimawav


I tried changing the video and audio codecs with ffmpeg to see if I 
could resolve the issue with the problem AVIs but just seemed to make 
the problem worse.  Does anyone know why some AVIs work properly and 
others not?

Thanks,

Phil.
-- 
Philip Rhoades

GPO Box 3411
Sydney NSW	2001
Australia
E-mail:  phil at pricom.com.au