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I-Frame Only MPEG-2 -or- Uncompressed 10-bit
I have a Canon XH A1 HDV Camcorder and when I start and new project and go into the project settings under ‘Video Rendering’ and look at the options for File Format… I have a couple options listed to choose from:
1) I-Frame Only MPEG-2
2) Uncompressed 10-bit (4:2:2 YUV)
3) Adobe Wavelet CodecI use Firewire to transfer the video from my camcorder to Premiere Pro using PP’s capture. I have had it set on ‘I-Frame Only MPEG-2’… would I be better off using the ‘Uncompressed 10-bit’ option? Would this give me greater color details, etc?
Could someone kindly explain which one would give the best results (sharpest image) and what the advantages/disadvantages of these options are for HDV? Thanks for your help and time.
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2 Replies
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When creating a new project, I have 2 HDV options on the General page; HDV 720 and HDV 1080i, but no choices for the File format on the Video Rendering page, I-frame only Mpeg 2 is greyed out. If you shot in the HDV mode, choose one of the HDV presets that matches your camera setting…720 or 1080i.
HDV is basically Mpeg2 I frame only on the DV tape which is then converted to an intermediate codec for editing. -
[mike velte] “HDV is basically Mpeg2 I frame only on the DV tape”
Mike is right, HDV is MPEG2, but I-frame only would indicate that every frame is independently decodable like MJPEG.
HDV is long GOP MPEG2 on tape…JVC’s GOP is 6 frames (HDV1) and Sony/Canon (HDV2) is either 12 frames (for 25fps) or 15 frames (30fps) and the GOP frame order is pretty standard “IBBPBBPBBPBBPBBIBBPBBP….” with an I frame starting each GOP.
…small clarification.
TimK,
Director,
Kolb Productions,Creative Cow Host,
Author/Trainer
http://www.focalpress.com
http://www.classondemand.net
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