[mythtv-users] nuvexport - Xvid and MP4 not working (even though compiled in ffmpeg)

[Matt]

On 8/9/07, Matt <skd5aner at gmail.com> wrote:
> On 8/9/07, Brad DerManouelian <myth at dermanouelian.com> wrote:
> > On Aug 9, 2007, at 10:50 AM, Matt wrote:
> >
> > > Hi,
> > >
> > > I'm having an issue where xvid is disabled saying that ffmpeg hasn't
> > > been compiled with it, however... I just compiled it from source and I
> > > know it was.  I'm using current ffmpeg SVN from today.
> > >
> > > In addition, MP4 (ipod) says it's disabled because it doesn't support
> > > encoding to AAC, but FAAD and FAAC are both compiled in.
> > >
> > > I'm running ubuntu, but compiled nuvexport and ffmpeg from SVN
> > > source today.
> >
> > Are you running into this?
> > http://www.gossamer-threads.com/lists/mythtv/dev/282791
> > http://www.gossamer-threads.com/lists/mythtv/dev/282597
> >
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
>
> Yup... that's it.  I replaced it and it now is no longer disabled.
> However, I still have an issue when trying to run an MP4 (h264)
> transcode:
>
> Choose a function, or episode(s) to remove:  c
> Where would you like to export the files to? [.]
> Enable Myth cutlist? [Yes]
> Enable noise reduction (slower, but better results)? [No]
> Enable deinterlacing? [Yes]
> Crop broadcast overscan border (0-5%) ? [1.5]
> Audio bitrate? [64] 128
> Enable iPod compatibility? [Yes] no
> Video codec (mpeg4 or h264)? [h264]
> Variable bitrate video? [Yes]
> Multi-pass (slower, but better quality)? [Yes]
> Video bitrate? [384]
> Default resolution based on requested dimensions.
> Width? [320] 480
> Height? [368]
>
> Now encoding:  Saturday Night Live:  Untitled
> Encode started:  Thu Aug  9 14:49:08 2007
> First pass...
> Waiting for mythtranscode to set up the fifos.
> Starting ffmpeg.
> processed:  0 of -138631 frames at 0 fps (~%, eta: unknown)
>
> ffmpeg had critical errors:
>
> Unknown codec 'h264'
>
>
> I'm guessing that somewhere else it's passing the wrong codec name to
> ffmpeg.  I haven't really had a chance to dive in yet and fix this as
> I really don't have a lot of perl or ffmpeg knowledge to know what
> should be passed.
>
> Either way, I guess someone should open a ticket so Chris can fix this.
>
> Thanks!
> Matt
>

Looks like it needs to pass "-vcodec libx264"

http://rob.opendot.cl/index.php/useful-stuff/ffmpeg-x264-encoding-guide/

Also, that's a good link to look into passing some defaults to get
some good quality g264 transcodes

If no one opens a ticket I'll do so.

Thanks!
Matt