[mythtv-users] Transcoding to mp4 to reduce file size
dwilson at dslextreme.com
Sun Nov 11 01:22:23 UTC 2007
On 11/10/2007 at 9:37 AM Chris Isip wrote:
> On Nov 9, 2007 7:16 PM, Dan Wilson <dwilson at dslextreme.com> wrote:
> > On 11/9/2007 at 6:31 PM Chris Isip wrote:
> > > I'm hitting the limits of my file storage. I was wondering if there
> > > a
> > > way that I can transcode the mpeg2 programs to mpeg4 and still let the
> > > videos be viewable in mythtv "Watch Recordings".
> > >
> > I use the internal transcoding available in myth to convert mpeg2 into
> > mpeg4. I get about 50% reduction in size, bringing an hour of SD tv
> down to
> > about 1 GB.
> I was looking more towards a reduction in size from 1.43 GB to 200 MB
> a 1 hour SD show. I found a ffmpeg formula for transoding to ipod touch
> it did just that. The quality was acceptable for playback fullscreen on
> TV as well , but mythtv will not play it ( I tried renaming the transcoded
> file to the original filename).
> Has anybody used ffmpeg or mencoder to achieve this. I'm not really sure
> what myth thinks the video should be before it can play it. Theres
> going to be some database edits as well.
Well, I only get a reduction to 1GB because I set the quality to high and set fps to 2200. If you reduced fps and turned off the "high quality" flag, I imagine you would get a significantly reduced file.
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