[mythtv-users] Can't play x264 encoded video, mythfrontend crash
linuxdreas at launchnet.com
Thu Feb 7 05:27:46 UTC 2008
Am Mittwoch, 06. Februar 2008 21:11:09 schrieb Taco Mel:
> First, I had been encoding to MPEG-4 and using the AAC
> audio codec. Turns out, I could not play the MPEG-4
> and H.264 with any audio (tried AAC and MP3) but I
> could make it work without sound.
> Second, I tried using mencoder to use MP3 on the audio
> and H.264 on the video, 2 pass, bitrate 1400. I let
> this write to the default container (AVI) and did not
> subsequently convert that to MPEG-4. I got this to
> work and to play in the MythTV player, sort of. Here
> are my remaining issues and I hope that I can get some
> 1) Aforementioned crash when having sound in an
> MPEG-4. That was my first post on this topic.
> 2) All of the default H.264 profiles I have examined
> thus far suggest setting keyframes around every
> 240-300 frames. However I found that skipping around
> in the MythTV player, it does not start at the
> keyframe, resulting in distorted display for up to 6
> seconds. Then it hits the keyframe and works fine
> from then on. My "workaround" if you call it that is
> to set a keyframe every 15 seconds so the distortion
> lasts at most a half second. I did do "mythcommflag
> --file ... --rebuild" to no avail.
> 3) I transcoded one longer recording (2 hours 15
> minutes) and achieved an impressive reduction from 5.0
> GB to 1.3 GB. However this recording did not do well
> in Myth. It played fine but when I did any skipping,
> the progress bar indicated the "new" position but the
> video itself was not advanced, audio or video. After
> a few seconds the player crashed. This recording
> plays and looks great in mplayer and skips around as
> it should.
> Can anyone give some answers or advice on where to
> look to resolve these issues? Or is playing H.264
> content with the internal MythTV player just not
> feasible at this time?
I have similar issues with h264-encoded videos created with mencoder. No
sound whatsoever. I am using h264-encode with a 3-pass-approach.
Would you mind sharing the 2-pass commandlines for mencoder you are using?
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