Den 21.12.2023 18:19, skrev Andrew Randrianasulu via Cin:
чт, 21 дек. 2023 г., 19:56 Andrea paz via Cin <[email protected]>:
> What kind of video/properties did you test with?
I used: 1- Two h264 (mp4) files queued. 2- EXR image sequence. No filter or editing action.
I think Terje was interesting in image dimensions of source video ? In my very limited testing speed was inverse proportional to horizontal size ...i.e. 640*xxx was rendering twice as fast as 1280*xxx at 16:9 image proportions ...
Yes, I thought of the output of the streams from ffprobe -hide_banner av1_output file Stream # ......
Rendering preset: av1.webm. I did not change any parameters, leaving everything to default.
@Andrew I don't understand how to use system libaom. I had stuck to using system ffmpeg by disabling the whole "thirdparty".
Well, I think we better to clarify that
--without-Piece disables part of cingg AND internal version of library (AND system wide linking?)
so, --without-lv2 disables any attempt at use lv2 support code.
--disable-Piece AND --with-Piece only disables building internal library version part, leaving it up to system to provide headers and libs.
so you can specify BOTH --with-lv2 and --disable-lv2 and this will mean "use system version of lv2" -( sadly currently not working on Phyllis's Fedora multiarch system ?)
--disable-Piece AND --without-Piece disables both building of int. copy and linking/using of this code part
--disable-libdav1d will turn off building internal copy of libdav1d but you can still pass flags enabling use of system libdav1d.
Issues is a bit complicated by fact that some libs needed for 'cin' executable, and some indirectly for libav* libraries. So, for ffmpeg-support libs you need additional env variables for letting it use system components.
There are variable (like auto) in configure.ac <http://configure.ac> block for many libraries, so default state does not require unreasonably long string of --with-* and --enable-* configure arguments.
At least this is my understanding of difference between --with-something, --enable-something, --without-something and --disable-something.
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