[FFmpeg-user] ffmpeg performance 3.3 vs. 3.2.4
Paul B Mahol
onemda at gmail.com
Mon May 15 10:49:47 EEST 2017
On 5/15/17, Chris <CvB at kruemel.org> wrote:
> I'm batch transcoding h264 ts streams to h265. Lately, I replaced ffmpeg
> 3.2.4 with 3.3, and noticed that the average frame rate for transcoding
> dropped from about 2.4 to 1.0. For testing purposes, I have switched
> back to 3.2.4 for the next file, and the frame rate went up to 3.2.4 again.
> Command line:
> ffmpeg -analyzeduration 200M -probesize 200M -i "$LOCAL_SOURCE" -vf
> yadif=1 -map 0 -c:a copy -c:v libx265 -preset veryslow -x265-params
> crf=19 -strict experimental "$LOCAL_TARGET"
> I looked through the release notes, but couldn't really find anything
> that might be related. The machine is a server, i.e. a CPU without GPU,
> and an ASPEED VGA controller.
> Any idea for what this could be related to?
Full uncut command line output missing.
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