<div class="gmail_quote">On Sun, May 22, 2011 at 6:43 PM, Raymond Wagner <span dir="ltr"><<a href="mailto:raymond@wagnerrp.com">raymond@wagnerrp.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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On 5/22/2011 18:36, Dave Sp wrote:
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<div class="gmail_quote">On Fri, May 20, 2011 at 3:05 AM, Paul
Gardiner <span dir="ltr"><<a href="mailto:lists@glidos.net" target="_blank">lists@glidos.net</a>></span>
wrote:<br>
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<div>On 19/05/2011 17:12, Raymond Wagner wrote:<br>
> Not directly, no. However you can get mythtranscode to
act as a raw<br>
> frame server to another application that can. See
nuvexport for an<br>
> example on how to do this.<br>
<br>
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If someone has figured out how to drive HandBrake like that,
can they<br>
please post how it's done?<br>
<br>
With SD, I used to use lossless transcode to cut adverts and
then<br>
archive with HandBrake, but now most of my content is HD, I've<br>
more or less given up.<font color="#888888"></font><br>
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For my HD recordings, I use mythtranscode with the --mpeg2 and
--honorcutlist options to create a new file, then send that to
HandBrakeCLI with "--preset Normal" to create the final video.
For me, Handbrake's output file is around 1/10th the size of its
input file.<br>
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<br>
That doesn't sound right. By clipping commercials, you're going to
chop off maybe 35% of a recording. MPEG2 to H264 is going to get
you another 2-3x. I could see 1/5th the original recording, but not
1/10th unless you're downscaling the video.<br>
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<br></blockquote></div><br>I'll use last Sunday's Family Guy (hour long) as an example.<br><br>Original recording:<br>1 hour, 3 minutes. MPEG-2 (TS). 1280x720. 15.5Mbps bitrate. 6.9GB file size.<br><br>Hand-cut commercials. After mythtranscode with --mpeg2 and
--honorcutlist options:<br>43 min, 30 sec. MPEG-2 (PS). 1280x720. 15.5Mbps bitrate. 4.8GB file size.<br><br>After HandBrakeCLI with "--preset Normal":<br>43 min, 30 sec. MPEG-4. 1280x720. Variable bitrate (overall 2.6Kbps). 797MB file size.<br>
<br>The resulting file size is 12% of the original before transcode. And the final video doesn't have any artifacts that I can see.<br><br>--Dave Sp<br>