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MOV h.264 format rendering
My first post to the COW forums, forgive me if I’m not using proper etiquette.
I’m working with a client for a commercial that will be broadcast on a local news network. The network wants a h.264 MOV, and I’m trying to find the best way to achieve that format while keeping as much quality as I can.
I’m running Vegas 11, and don’t see a h.264 output option anywhere. I know that quicktime can convert to an h.264 file, but I would like to know what rendering format would be the best quality to put into quicktime for conversion. An email I got from the network mentions avc1 codec, dvh3 codec and dvh6 format with “industry standard” compression norms.
I’m not very familiar with codecs, and this is type of project is a first for me. My only editing rescource available is Sony Vegas, any help would be GREATLY appreciated.
Thanks,
Sean -
23 Replies
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Render to MainConcept AVC or Sony AVC. Both will produce an AVC/H.264 MP4 file. Then just rename the .mp4 file to .mov and send it off. MP4 is a proper subset of the QuickTime MOV container.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Sony Vegas can’t create MOV H.264, but it creates MP4 H.264, as John said.
If you want “true” MOV container, you can use ffmpeg (it’s a free command line utility) to convert your MP4 to MOV w/o recompression and any quality loss – fast and easy:
ffmpeg -i video.mp4 -vcodec copy -acodec copy video.mov
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Thanks, the renaming method worked. As for Aleskey’s method, I’ve heard of that before. Is the quality really that big of a difference? Also, when you mention command line, are you referring to a mac/linux’s terminal, or a Windows command prompt? I’m using a windows machine. Since this is a project that will be used for broadcasting, I might want to look into the ffmpeg option…
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Is there a way to get the rendered file down to a smaller size? My 30 min tv show is 5gb. Comcast accepts MPEG2, Avid DNxHD, ans H.264. I have tried them all, but my renderd file size seems a extremely large.
Any insight would be appreciated.
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[Raf Erosa] “Is there a way to get the rendered file down to a smaller size?”
Size is controlled by bit-rate (all other things being equal). Lowering the bit-rate will reduce the size of the file.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Comcast says the mpg2 is 12mbps (cbr) and the mp4 is 45mbps (cbr)
Does it really have to be that high? that is a pretty large file. Not sure why they want the Mbps to be so high. Andy input or ideas on how to circumvent the high end MBps?
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[Raf Erosa] “Comcast says the mpg2 is 12mbps (cbr) and the mp4 is 45mbps (cbr) Does it really have to be that high? that is a pretty large file.”
Yes, you need to send them what they asked for. This is not internet video… this is broadcast where high bit-rates rule. They are expecting large high bit-rate files and you need to deliver them. Don’t worry about the file size.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
Last question… In your opinion, do you think a 5gb file for a 30min broadcast is big or is that about the norm? I have seen some programs on the server that are 1.2gb. Im just wondering how they did that.
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[Raf Erosa] “Last question… In your opinion, do you think a 5gb file for a 30min broadcast is big or is that about the norm?”
I have to agree that does seem large. If the bit rate is 12Mbps, that’s 1.5MB/s, or 90MB/min x 30min is 2.7GB. So 5GB is twice that. Did you use 24Mbps? Because that would produce a 5GB file for 30 minutes of video (not counting audio).
~jr
http://www.johnrofrano.com
http://www.vasst.com
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