[MPlayer-users] xvid, lavc, mencoder - thank you

[Corey Hickey]

Michael Waters wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> 
> 
>>>Thanks to the developers for fixing xvid encoding.  I noticed xvid now   
>>>works with mencoder.  lavc usually does a great job but but I noticed    
>>>that sometimes it makes "blocky" scenes with motion in bright sunlight
>>>and when one shot fades in over another shot which fades out. I just
>>>tested xvid and it seems to handle this a lot better.  Thanks!
> 
> 
> On Wed, Nov 20, 2002 at 19:44 -0800, Corey Hickey wrote:
> 
>>Are you playing these back with divx4/divx5? I reported something like
>>this a long time ago, and the concensus seemed to be that it was a DivX
>>bug and not a problem of lavc.
> 
> 
> No, I don't think I am.  I just do `mplayer file`.  I'd have to use
> `-vo codec` for it to play back with divx4 or divx5 or am I mistaken?
> If it's an easy fix, I'd like to be mistaken. :) Here's some output
> when I start mplayer:
> 
> ...
> Playing ch1.avi
> Detected AVI file format!
> VIDEO:  [DIVX]  688x368  24bpp  23.98 fps  892.8 kbps (109.0 kbyte/s)
> Clip info: 
>  Software: MEncoder 0.90pre10-2.95.4 
> ==========================================================================
> Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
> AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 4000->192000 (32.0 kbit)
> Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3)
> ==========================================================================
> vo: X11 running at 1024x768 with depth 16 and 16 bpp (":0.0" => local display)
> ==========================================================================
> Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
> Selected video codec: [ffodivx] vfm:ffmpeg (FFmpeg MPEG-4)
> ==========================================================================

Yeah, that looks the way it should be: ffmpeg all the way. I bet the
developers would appreciate a bugreport on this. Use:

$ mencoder -dvd 1 -ss 500 -frames 200 -ovc copy -nosound

and modify the parameters to match your video source and the position of
a section of video that causes your problem. Then, create an lavc
encoding of the resultant file (make sure it has the problem you
describe). Upload those two files to
ftp://mplayerhq.hu/MPlayer/incoming/ along with a text file describing
the problem and the _exact_ command you use to reproduce it.

-Corey