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<div class="moz-cite-prefix">Den 21.12.2023 18:19, skrev Andrew
Randrianasulu via Cin:<br>
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<div dir="ltr" class="gmail_attr">чт, 21 дек. 2023 г., 19:56
Andrea paz via Cin <<a
href="mailto:cin@lists.cinelerra-gg.org"
moz-do-not-send="true" class="moz-txt-link-freetext">cin@lists.cinelerra-gg.org</a>>:<br>
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What kind of video/properties did you test with?<br>
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I used:<br>
1- Two h264 (mp4) files queued.<br>
2- EXR image sequence.<br>
No filter or editing action.<br>
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<div dir="auto">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 ...</div>
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Yes, I thought of the output of the streams from<br>
<blockquote><font face="Courier New, Courier, monospace">ffprobe
-hide_banner av1_output file<br>
Stream # ......</font><br>
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Rendering preset: av1.webm. I did not change any
parameters, leaving<br>
everything to default.<br>
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@Andrew<br>
I don't understand how to use system libaom. I had stuck
to using<br>
system ffmpeg by disabling the whole "thirdparty".<br>
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<div dir="auto">Well, I think we better to clarify that </div>
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<div dir="auto">--without-Piece disables part of cingg AND
internal version of library (AND system wide linking?)</div>
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<div dir="auto">so, --without-lv2 disables any attempt at use
lv2 support code. </div>
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<div dir="auto">--disable-Piece AND --with-Piece only disables
building internal library version part, leaving it up to
system to provide headers and libs.</div>
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<div dir="auto">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 ?) </div>
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<div dir="auto">--disable-Piece AND --without-Piece disables
both building of int. copy and linking/using of this code part</div>
<div dir="auto"><br>
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<div dir="auto">--disable-libdav1d will turn off building
internal copy of libdav1d but you can still pass flags
enabling use of system libdav1d.</div>
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<div dir="auto">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.</div>
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<div dir="auto">There are variable (like auto) in <a
href="http://configure.ac" moz-do-not-send="true">configure.ac</a>
block for many libraries, so default state does not require
unreasonably long string of --with-* and --enable-* configure
arguments.</div>
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<div dir="auto">At least this is my understanding of difference
between --with-something, --enable-something,
--without-something and --disable-something.</div>
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