[Ffmpeg-devel] [BUG] MPEG-4 file with artifacts

[Michael Niedermayer]

Hi

On Mon, Jan 02, 2006 at 01:38:30PM +0100, Diego Biurrun wrote:
> Hi,
> 
> while reorganizing my samples collection, I stumbled across some samples
> that fail to decode properly.  This one has MPEG-4 video that shows
> heavy artifacting:
> 
> ftp://sandman.homedns.org/diego/ffmpeg/mpeg4_artifacts.mp4
> ftp://sandman.homedns.org/diego/ffmpeg/mpeg4_artifacts_small.mp4
> 
> The first sample is 50MB, the second 1MB, but the small version already
> shows the problem quite visibly.  ffplay fills the console with messages
> like
> 
> [mpeg4 @ 0x10287df8]Error at MB: 672
> [mpeg4 @ 0x10287df8]marker does not match f_code
> [mpeg4 @ 0x10287df8]concealing 593 DC, 593 AC, 593 MV errors
> [mpeg4 @ 0x10287df8]Error at MB: 672
> [mpeg4 @ 0x10287df8]marker does not match f_code
> [mpeg4 @ 0x10287df8]concealing 593 DC, 593 AC, 593 MV errors
> [mpeg4 @ 0x10287df8]header damaged
> [mpeg4 @ 0x10287df8]ac-tex damaged at 24 23
> [mpeg4 @ 0x10287df8]Error at MB: 967
> [mpeg4 @ 0x10287df8]concealing 315 DC, 315 AC, 315 MV errors
> [mpeg4 @ 0x10287df8]header damaged
> [mpeg4 @ 0x10287df8]header damaged
> [mpeg4 @ 0x10287df8]ac-tex damaged at 3 5
> 
> Maybe the file is just damaged (beyond repair).  I'd appreciate if
> somebody could confirm this.

is there any decoder / player / demuxer which can play this?

[...]

-- 
Michael