<div class="gmail_quote">On Mon, Jan 3, 2011 at 6:20 AM, Doug Haber <span dir="ltr"><<a href="mailto:doug@fawnanddoug.com">doug@fawnanddoug.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Does anyone have any suggestions on specific parameters to shrink<br>
these files down to ~300MB (and still be watchable)?<br>
<br>
Thanks!<br>
Doug<br>
<br>
p.s. I also tried nuvexport, but I'm not sure what codecs or settings to use<br></blockquote><div><br></div><div>I would suggest using nuvexport, as ffmpeg (even as mythffmpeg, which nuvexport uses now) command line options are a type of black magic almost.</div>
<div><br></div><div>For a half hour show at 300MB... your total bitrate would be around 1300kbit/s (that would get you 292.5MB for half hour). You should be able to find some combination of codec, etc that will give you pretty nice quality audio/video in that total bitrate, but for sure, you'll want to be resizing as part of that.</div>
<div><br></div><div>I would suggest (if you have the CPU time for it) using nuvexport, going to H.264, and using audio of 64kbit-192kbit (whatever sounds good to you in the end), and a video bitrate of around 1000 or so, and a resolution in the range of 480 rows... which for simple math, is 848x480. But play with the knobs until you get what you like.</div>
<div><br></div><div>If the re-encoding time delay gets to be too much, trying an MP4 transcode around the same parameter range will likely still be quite watchable. That may even be too high of a video bitrate to play with. :)</div>
<div><br></div><div>Right now, I'm in the middle of transcoding 1080i H.264 from my HD-PVR down to 848x480 H.264 at 720k video / 64k audio to try playing on my nook color. We'll see how it all goes. (a Barenaked Ladies concert, BTW)</div>
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