[MPlayer-users] Garbled/distorted video with MPEG-2 transportstream playback (DVB)

[Nico Sabbi]

Falck Kenneth wrote:

>Nico Sabbi wrote:
>  
>
>>Falck Kenneth wrote:
>>    
>>
>>>My problem is that sometimes, certain programmes on certain channels
>>>cannot be played back. The video image is distorted, as if the
>>>vertical/horizontal sync had been somehow lost. The picture looks the
>>>same as an old CRT monitor with invalid frequencies, but this happens
>>>"within" mplayer, inside the video window. (My screens are 
>>>      
>>>
>>TFT anyway)
>>    
>>
>>>To be more specific, it happens at least with "Dr. Phil" on channel 4
>>>here in Finland. The beginning commercials play fine, but when the
>>>actual programme starts, the picture becomes distorted. At the same
>>>time, mplayer prints out this, apparently detecting some 
>>>      
>>>
>>change in the
>>    
>>
>>>MPEG2 encoding parameters:
>>>      
>>>
>>if you can upload a sample somewhere someone can give it a look
>>incoming isn't usable atm.
>>    
>>
>
>I captured a 20 second clip that seems to reproduce this bug
>consistently. It can be downloaded from
>http://www.kfalck.net/pub/mpegbug.ts (9 MB)
>
>The format is what mplayer records from a DVB-C card using -dumpstream,
>cropped with dd.
>
>When this file is played back with mplayer, the first 5 seconds plays OK
>and then the display is garbled. I noticed that there is a change of
>resolution involved. The first 5 seconds are:
>
>VDec: vo config request - 720 x 576 (preferred csp: Planar YV12)
>VDec: using Planar YV12 as output csp (no 0)
>Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
>VO: [directx] 720x576 => 768x576 Planar YV12
>
>And after that, the stream changes to:
>
>VDec: vo config request - 704 x 576 (preferred csp: Planar YV12)
>VDec: using Planar YV12 as output csp (no 0)
>Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
>VO: [directx] 720x576 => 768x576 Planar YV12
>
>In fact, if the file is cropped so that the resolution change is
>eliminated from the beginning, it plays back fine.
>
>  
>
use -vc ffmpeg12 please