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H.264 Encoding What’s wrong?
I must have chosen wrong presets or something. I tried to Encode a .m2t file to 1080p w/ HDTV 29.97 High Quality preset, the resulted encoded file is actually even bigger than the original .m2t file (slightly bigger). I thought H.264 is supposed to be highly compressed but yet able to preserve HQ? Please advice.
Thanks.
Perry -
3 Replies
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The H264 (not Blue Ray) default preset in CS3 is about 350 kbps, 176×144 for cell phones.
The default bitrate preset for Blue Ray IS actually higher than the captured HDV footage. HDV capture is the smallest bitrate of any other method of HD capture… -
Thanks Mike,
I think I have been choosing too high Bitrate (32!).
So, what should I expect about HDV size vs H.264 size? 2-3:1?
Thanks,
Perry -
HDV comes off a DV tape at about 25 mbps…same as DV.
On export for BlueRay one can choose either Mpeg 2 or H264 as the format and the bitrate will be dictated by movie length/disc space and the bitrate limit of the BlueRay spec of 36.55 mbps.
Premiere’s default preset for H264 (34.4) is at the upper end of the spec and like DVD, pushing the limit might be a recipe for erratic playback. I would experiment (if I had a camera, burner, player and a HDTV)) with bitrates of 18-25 mbps.
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