Re: Transcoding movies for QMPlayer
On Monday, October 01, 2012 10:00:57 PM Gilles Filippini wrote: > Neil Jerram a écrit , Le 01/10/2012 19:58: > > Gilles Filippini writes: > >> Movies transcoded with mencoder often lose A/V sync. For one of my video > >> files there is a 5 secondes drift after only 1 minute of playing. > >> > >>From when I used to do that for my Nokia 770, I remember that it used to > >> > > work better when I told mencoder to create an index. I don't remember > > exactly but I guess that would have been the -forceidx option. > > Unfortunately this option doesn't help regarding the drift. > > I'll have to go with VLC transcoding for now, while it isn't a panacea > either. I've had to downgrade the transcoded video size to 240*320 for > the movie to play fluently on the GTA04: > > $ vlc --transform-type 270 \ > --sout '#transcode{width=320, vcodec=h264, \ > vfilter=transform:canvas{width=240,height=320}, acodec=mp4a, \ > channels=2, audio-sync}:standard{access=file, mux=mp4, \ > dst=}' -I dummy vlc://quit I am now playing a bit with it again. I have noticed the drift too. Probably the encoding params that are used for GTA02 would work ok even for GTA04 - i have changed them for GTA04 to increase quality of video, but i think we should remove the ifdef and keep them same as for GTA02. However there are some interesting directions. - Mplayer in wheezy can play very well ogv - We can use theorarm which is ogv player mostly in assembly optimized for ARM - switch to wheezy/armhf for GTA04 which could give us some more speed Regards Radel ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Transcoding movies for QMPlayer
has anyone been able to play a movie on the GTA02 using this vlc conversion or any other conversion on a recent qtmoko built with qmplayer? I tried this vlc script and the movie is fine on my desktop computer but once I start it in qmplayer qmplayer stays black for a second before it crashes/stops without even having started the movie. robin ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Transcoding movies for QMPlayer
Neil Jerram a écrit , Le 01/10/2012 19:58: > Gilles Filippini writes: >> Movies transcoded with mencoder often lose A/V sync. For one of my video >> files there is a 5 secondes drift after only 1 minute of playing. > >>From when I used to do that for my Nokia 770, I remember that it used to > work better when I told mencoder to create an index. I don't remember > exactly but I guess that would have been the -forceidx option. Unfortunately this option doesn't help regarding the drift. I'll have to go with VLC transcoding for now, while it isn't a panacea either. I've had to downgrade the transcoded video size to 240*320 for the movie to play fluently on the GTA04: $ vlc --transform-type 270 \ --sout '#transcode{width=320, vcodec=h264, \ vfilter=transform:canvas{width=240,height=320}, acodec=mp4a, \ channels=2, audio-sync}:standard{access=file, mux=mp4, \ dst=}' -I dummy vlc://quit Thanks, _g. signature.asc Description: OpenPGP digital signature ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Transcoding movies for QMPlayer
Gilles Filippini writes: > Hi, > > Movies transcoded with mencoder often lose A/V sync. For one of my video > files there is a 5 secondes drift after only 1 minute of playing. >From when I used to do that for my Nokia 770, I remember that it used to work better when I told mencoder to create an index. I don't remember exactly but I guess that would have been the -forceidx option. Neil ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Transcoding movies for QMPlayer
Hi, Movies transcoded with mencoder often lose A/V sync. For one of my video files there is a 5 secondes drift after only 1 minute of playing. I finally found out that VLC does a better job in this regard. But it was quite difficult to retrieve the correct set of options. FWIW here is the command line I've ended up with: $ vlc --transform-type 270 --sout \ '#transcode{vcodec=h264, \ vfilter=transform:canvas{width=480,height=640}, \ acodec=mp3, channels=2, audio-sync}:standard{access=file, \ mux=mp4, dst=".avi"}' \ -I dummy vlc://quit Thanks, _g. signature.asc Description: OpenPGP digital signature ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community