pyTivo Discussion Forum

real_armooo · pyTivo Creator Joined: 23 Mar 2008 Posts: 42

I have a branch that has very basic mencoder support for s3 tivos. It handles mkv play back *much* better than ffmpeg. I did need to build it from svn to get a version that would output to stdout. It seems like the ubuntu packaged version did not want to. It is using all hard coded settings.

We should be able to have all the functions that make video settings return real values and not parts of a ffmpeg command so both transcode functions can make use of them.

This should also open the door to using other mencoder filters (deinterlaceing, subtitles etc). It also seems faster to me, which is strange it is still using lavc to encode.

But I don't think I am going to have much time to work on it in the next few weeks

wgw · Joined: 06 Jan 2008 Posts: 226

You rascal you. Just when I was comfortable with ffmpeg. Smile

The windows mencoder download is working pretty well for me. I'm getting about the same speed when using the same settings as ffmpeg. I had to reduce the bufsize to eliminate audio video skipping and pixelation. I'm trying out this command for starters.

cmd.append('vcodec=mpeg2video:acodec=ac3:abitrate=384:keyint=15:vrc_maxrate=17408:vrc_buf_size=1024:vbitrate=8000:vstrict=0')

wgw · Joined: 06 Jan 2008 Posts: 226

Hmmm, upon closer examination, mencoder converted my 6 channel source to 2 rather than automatically retain the same channels as the source like ffmpeg. I had to specify -channels 6 to retain the 5.1 audio. But then it moved the center channel to the right rear speaker.

real_armooo · pyTivo Creator Joined: 23 Mar 2008 Posts: 42

wgw · Joined: 06 Jan 2008 Posts: 226

That's certainly a shame. When you said mencoder handles mkv playback better, I was hoping you were referring to the audio channel problem.

However, it still might be possible to program a fix into pytivo for the channel problem if the channel reassignments are consistent. I managed to get the center channel back where it should be by using audio filtering.

cmd.append('-af')
cmd.append('channels=6:6:0:0:1:4:2:2:3:3:4:1:5:5')

Fab2004 · Joined: 07 Apr 2008 Posts: 5

where can I "git" the branch w/ mencoder, I'd like to try adding subs to my movies?

rdian06 · Joined: 12 Apr 2008 Posts: 369

Horn · Joined: 22 Jul 2008 Posts: 4

Is this being developed at all? ffmpeg is choking on quite a few of my hi def videos that mplayer has been able to play just fine.

rdian06 · Joined: 12 Apr 2008 Posts: 369

Horn · Joined: 22 Jul 2008 Posts: 4