Quote:
Originally Posted by colinhunt
Also added a qp32 xvc encode of that source with a bitrate of approx. 1 Mbps.
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Thanks for sharing additional encodings. Have you compared it to any other codec at the same bitrate?
Quote:
Originally Posted by foxyshadis
So is this an automatic 2-pass? The length of time before real encoding starts seems to indicate that it's doing some serious analysis beforehand. Is there a plan for developing a streaming encoder, or is the format generally designed only for archival?
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The xvc codec is targeting streaming rather than archival, but so far only offline (non-realtime) encoding. There is no speed mode in xvc (yet) that can do realtime encoding. In the dev version of xvc there is experimental support for automatic multi-pass encoding (-multi-passes 2) and there is also a single pass mode that includes a quick determination of which start picture to use (-multi-passes 1) but the default is normal single pass encoding (-multi-passes 0) and in that mode there is no analysis of the video prior to encoding.
The encoding is quite slow so it will take some time before the first picture has been encoded (and the statistics of that picture is output if -verbose 1 is used), so maybe that is the reason why it appears to take long time before encoding is started.