[mythtv-users] VDPAU poor playback - stuttering with mythvideo and internal player

[Phil Wild]

2010/1/21 Greg Oliver <oliver.greg at gmail.com>:
> On Tue, Jan 19, 2010 at 10:33 AM, Phil Wild <philwild at gmail.com> wrote:
>> 2010/1/19 Phil Wild <philwild at gmail.com>:
>>>
>> Hi all,
>>
>> WHen I play this video in mythtv, the cpu goes up to 114% for
>> mythfrontend. This is not what I would expect if vdpau is doing what
>> it is supposed to do...
>>
>> I tried the vdpaubuffersize setting and it made no difference. I also
>> set it down to 20 to see if it made a difference and it didn't
>>
>> I installed mplayer and vlc and both also struggled to play this video file.
>>
>> I have also tested my NFS performance (file is on an NFS server) and
>> achieve close to 300mbit between the hosts. Just to be sure, I also
>> played the file from a local hard drive on my frontend and still
>> exoperienced poor playback.
>>
>> vdpau does not seem to be able to play this video file.
>>
>> I am now in the process of transcoding the file with ffmpeg.
>>
>
> If I transcode it into 4.0 AVC instead of 5.1, vdpau plays it
> perfect...  Same audio format as the original..  Same video options as
> well (well all of the same shared by both I guess)..
>

I transcoded the file using the following:

ffmpeg -i <infile> -map 0.0:0.0 -map 0.2:0.1 -f avi -vcodec mpeg4 -bf
2 -sameq -acodec libmp3lame <outfile>

never really played with ffmpeg before so not sure if the above was a
good choice of options but it did work for me... The file did grow in
size though...

Played fine afterwards...

Phil