Andrea, thank you for doing the tests. It is worrisome about the 7470 versus 7500 frames.

Are the generated files the same size?

Does ydiff show any non-zero difference in the output? (cd to cinelerra directory; type "make ydiff"; then type "./ydiff video1.mp4 video2.mp4")

I will do some small test also.

On Mon, Aug 2, 2021 at 8:19 AM Andrea paz via Cin <cin@lists.cinelerra-gg.org> wrote:

I did some more tests with x265. The details can be found in the
attached file, here I put a summary table where "Before" are the
results of the previous test that used a build with ffmpeg-4.4 but
without the latest patch. "Build" represents the test with ffmpeg-4.4
with the latest patch applied and "AppImage" represents the test done
with appimage-multibit which has ffmpeg-4.3 with the latest patch.
There are no big differences. Strange thing is that with "AppImage" we
have correspondence of the project frames ("7500"), with the "Build"
we still have the difference 7470 and 7500 that we had also in
"Before". Shouldn't the "Build" with the "AppImage" be the same?

Before Build AppImage

x265-10-bit 27.5 fps 28.2 fps 27.8 fps

x265-12-bit 25.5 fps 25.8 fps 25.35 fps

x265-hi 10.6 fps 10.6 fps 10.9 fps

If you have more specific tests to request, please let me know.
--
Cin mailing list
Cin@lists.cinelerra-gg.org
https://lists.cinelerra-gg.org/mailman/listinfo/cin