Tom Metro wrote:
> Roger Heflin wrote:
>> Here is an update transcode script...
>> Version 0.51 11/09/2007
>
> Is the version of makempeg2 on the wiki:
> http://mvpmc.wikispaces.com/transcoding
>
> (v.0.58 1/30/2008) the most recent version you have?
>
No, there is 0.59 7/28/2008 with these changes:
# Version 0.59 7/28/2008
# Changes:
# Added code to check the average bitrate from the cropdetect
since some videos
# appear to claim high bitrates and really have low
bitrates and don't
# need a video transcode, and some claim high bitrates
and have high bitrates,
# often when the broadcasters screw up (ie 704x480 with
abps of 14.5mbit on a
# subchannel that just days ago was 1920x1080).
# Reduced abps default from 5500 to 2500.
# Added check for height of 1088 on turning on of "-sws 2".
#
And I think I have another change or 2 in, but none of the changes in
0.59+ is significant unless you are running into certain special cases
that I made the changes to handle.
I will update the comments and upload a new version sometime in the
next day or two.
>
> I recently tried again using my own mencoder script that uses
> mythtranscode and FIFOs exactly the same way as nuvexport does, but it
> still seems to have problems with the audio. With some recordings it
> transcodes fine, but others it garbles the first 30 seconds of audio,
> then goes silent. It does this repeatedly.
>
> I thought maybe I was experiencing audio buffer underruns or something
> attributable to the use of FIFOs, so I cut that out of the equation, but
> still had identical results. (Originally I couldn't try that, as I was
> having MythTV encode recordings from my cheap tuner with RTJpeg, which
> mencoder doesn't support. I've since switched to MPEG4.)
>
> I was hoping my last Ubuntu update would have cured this. I guess I
> haven't yet hit upon the right mencoder command line settings.
>
> If I use ffmpeg (via nuvexport) to export MPEG2, the audio is fine, but
> the video quality is noticeably worse than mencoder.
>
> -Tom
I am going to be updating my desktop computer to something faster,
then I should be able to transcode 3+ 1080i streams in > real time, at
that point I am going to see if I can setup something that would start
transcoding almost immediately so that the transcoding would be just
slightly behind the actual broadcast by a minute or two.
Once the digital transition fully happens without this I won't be able
to watch a few minutes behind without this, I would have to wait until
the transcoding finishes, but with this I can continue to watch just a
few minutes behind things.
And the wildblue.net address is dead (you probably already noticed that).
Roger
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