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If there isn't other reasons against it, I will suggest to rename
the current preset av1.webm to av1_aom.webm<br>
This way it inform the users which encoder it is, and also follows
the related naming convention av1_svt, av1_vaapi, and possibly
additional ffmpeg supported av1_encoders av1-rav1e and avif (image),
and additional av1_hwaccels methods (qsv, amf, nvenc) later. <br>
And possibly upgrade to svt-av1 v.2.1.<br>
<br>
Transcoding regarding duration was also mentioned above. <br>
My input file here was a cfhd transcoded with ffmpeg from a Prores
422 hq source video file (that is not a arbitrary cut).<br>
<br>
Alt. 1)<br>
Therefore I went back to my source Prores 422 (HQ) hd01.mov which
especially default includes 16 channels LPCM audio, even though only
2 ch stereo is used.<br>
<br>
<font face="Courier New, Courier, monospace">ffprobe -hide_banner
hd01.mov<br>
</font>
<blockquote><font face="Courier New, Courier, monospace">Input #0,
mov,mp4,m4a,3gp,3g2,mj2, from 'hd01.mov':</font><br>
<font face="Courier New, Courier, monospace"> Metadata:</font><br>
<font face="Courier New, Courier, monospace"> creation_time :
2016-02-23T23:49:21.000000Z</font><br>
<font face="Courier New, Courier, monospace"> Duration:
00:01:11.28, start: 0.000000, bitrate: 200496 kb/s</font><br>
<font face="Courier New, Courier, monospace"> Stream
#0:0[0x1](eng): Video: prores (HQ) (apch / 0x68637061),
yuv422p10le(bt709, top coded first (swapped)), 1920x1080, 182130
kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 2500 tbn (default)</font><br>
<font face="Courier New, Courier, monospace"> Metadata:</font><br>
<font face="Courier New, Courier, monospace">
creation_time : 2016-02-23T23:49:21.000000Z</font><br>
<font face="Courier New, Courier, monospace">
handler_name : Apple Video Media Handler</font><br>
<font face="Courier New, Courier, monospace">
vendor_id : appl</font><br>
<font face="Courier New, Courier, monospace">
encoder : Apple ProRes 422 (HQ)</font><br>
<font face="Courier New, Courier, monospace"> Stream
#0:1[0x2](eng): Audio: pcm_s24le (lpcm / 0x6D63706C), 48000 Hz,
16 channels, s32 (24 bit), 18432 kb/s (default)</font><br>
<font face="Courier New, Courier, monospace"> Metadata:</font><br>
<font face="Courier New, Courier, monospace">
creation_time : 2016-02-23T23:49:21.000000Z</font><br>
<font face="Courier New, Courier, monospace">
handler_name : Apple Sound Media Handler</font><br>
<font face="Courier New, Courier, monospace">
vendor_id : [0][0][0][0]</font><br>
</blockquote>
<br>
Loaded this Prores 422 hq source file into CinGG<br>
<br>
1) Video only rendering - no error messages<br>
<blockquote>Rendering to file
/Videoklipp/Cineform/av1_aom_yuv422p10le.webm<br>
File format; FFMPEG webm<br>
Video only wrench: av1.webm | yuv422p10le<br>
cin<br>
Cinelerra Infinity - built: Jul 29 2024 01:18:06<br>
....<br>
Render::render_single: Session finished.<br>
** rendered 1781 frames in 187.108 secs, 9.519 fps<br>
<br>
FFMPEG::open_decoder: some stream times estimated:
/run/media/terje/Videoklipp/Cineform/av1_aom_yuv422p10le.webm<br>
FFMPEG::open_decoder: some stream times estimated:
/run/media/terje/Videoklipp/Cineform/av1_aom_yuv422p10le.webm<br>
FFMPEG::open_decoder: some stream times estimated:
/run/media/terje/Videoklipp/Cineform/av1_aom_yuv422p10le.webm<br>
Total excess of backups: -50 <br>
Session time: 0:05:08<br>
Cpu time: user: 0:20:00.969 sys: 0:00:08.355<br>
</blockquote>
<br>
2) Audio only rendering - not possible in CinGG<br>
<blockquote>Cinelerra Infinity - built: Jul 29 2024 01:18:06<br>
-<br>
16 channels lpcm audio (actually only #1 and #2 stereo used)<br>
<br>
Rendering to file /Videoklipp/Cineform/opus.webm<br>
File format; FFMPEG webm<br>
Audio only wrench: opus.webm<br>
<br>
[libopus @ 0x7f637c06a6c0] Opus mapping family undefined for 16
channels.<br>
FFMPEG::open_encoder err: Invalid argument<br>
int FFMPEG::open_encoder(const char*, const char*):<br>
open failed libopus:/run/media/terje/Videoklipp/Cineform/opus.webm<br>
Render::render_single: Session finished.<br>
Total excess of backups: -50 <br>
Session time: 0:02:21<br>
Cpu time: user: 0:00:13.680 sys: 0:00:02.102<br>
</blockquote>
-----------------<br>
<br>
Alt. 2) <br>
Transcoded alt. 1) source input file to Prores 422 hq with 2 ch
stereo audio:<br>
<br>
<font face="Courier New, Courier, monospace">ffmpeg -hide_banner -i
hd01.mov -map_metadata 0 -c:v copy -c:a pcm_s24le -ac 2 hd02.mov</font><br>
<br>
ffprobe -hide_banner hd02.mov<br>
<blockquote><font face="Courier New, Courier, monospace">Input #0,
mov,mp4,m4a,3gp,3g2,mj2, from 'hd02.mov':</font><br>
<font face="Courier New, Courier, monospace"> Metadata:</font><br>
<font face="Courier New, Courier, monospace"> major_brand :
qt </font><br>
<font face="Courier New, Courier, monospace"> minor_version :
512</font><br>
<font face="Courier New, Courier, monospace">
compatible_brands: qt </font><br>
<font face="Courier New, Courier, monospace"> creation_time :
2016-02-23T23:49:21.000000Z</font><br>
<font face="Courier New, Courier, monospace"> encoder :
Lavf61.1.100</font><br>
<font face="Courier New, Courier, monospace"> Duration:
00:01:11.28, start: 0.000000, bitrate: 184335 kb/s</font><br>
<font face="Courier New, Courier, monospace"> Stream
#0:0[0x1](eng): Video: prores (HQ) (apch / 0x68637061),
yuv422p10le(bt709, top coded first (swapped)), 1920x1080, 182130
kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 10k tbn (default)</font><br>
<font face="Courier New, Courier, monospace"> Metadata:</font><br>
<font face="Courier New, Courier, monospace">
creation_time : 2016-02-23T23:49:21.000000Z</font><br>
<font face="Courier New, Courier, monospace">
handler_name : Apple Video Media Handler</font><br>
<font face="Courier New, Courier, monospace">
vendor_id : FFMP</font><br>
<font face="Courier New, Courier, monospace">
encoder : Apple ProRes 422 (HQ)</font><br>
<font face="Courier New, Courier, monospace"> Stream
#0:1[0x2](eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz,
stereo, s32 (24 bit), 2304 kb/s (default)</font><br>
<font face="Courier New, Courier, monospace"> Metadata:</font><br>
<font face="Courier New, Courier, monospace">
creation_time : 2016-02-23T23:49:21.000000Z</font><br>
<font face="Courier New, Courier, monospace">
handler_name : Apple Sound Media Handler</font><br>
<font face="Courier New, Courier, monospace">
vendor_id : [0][0][0][0]</font><br>
</blockquote>
-----------------<br>
<br>
Alt. 3)<br>
Transcoded th source file Prores 422 (HQ) with LPCM audio to CFHD
quality 7 (high+), AAC audio (default) to stereo (-ac 2) and
Metadata (some)<br>
<br>
<font face="Courier New, Courier, monospace">ffmpeg -hide_banner -i
hd01.mov -map_metadata 0 -c:v cfhd -quality 7 -ac 2 cfhd01.mov<br>
<br>
ffprobe -hide_banner cfhd01.mov<br>
</font>
<blockquote><font face="Courier New, Courier, monospace">Input #0,
mov,mp4,m4a,3gp,3g2,mj2, from 'cfhd01.mov':<br>
Metadata:<br>
major_brand : qt <br>
minor_version : 512<br>
compatible_brands: qt <br>
creation_time : 2016-02-23T23:49:21.000000Z<br>
encoder : Lavf61.1.100<br>
Duration: 00:01:11.28, start: 0.000000, bitrate: 181871 kb/s<br>
Stream #0:0[0x1](eng): Video: cfhd (CFHD / 0x44484643),
yuv422p10le(bt709, top coded first (swapped)), 1920x1080, 181846
kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 12800 tbn (default)<br>
Metadata:<br>
creation_time : 2016-02-23T23:49:21.000000Z<br>
handler_name : Apple Video Media Handler<br>
vendor_id : FFMP<br>
encoder : Lavc61.3.100 cfhd<br>
Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D),
48000 Hz, stereo, fltp, 122 kb/s (default)<br>
Metadata:<br>
creation_time : 2016-02-23T23:49:21.000000Z<br>
handler_name : Apple Sound Media Handler<br>
vendor_id : [0][0][0][0]</font><br>
</blockquote>
<br>
By loading Alt. 2) Prores LPCM or Alt. 3) CFHD AAC with 2 ch stereo
audio into CinGG<br>
<br>
1) Video only av1_aom.webm rendering caused the previous FFseek I/O
errors<br>
<br>
2) Audio only hd02.mov stereo lpcm -> opus.webm worked ok<br>
<blockquote><font face="Courier New, Courier, monospace">cin</font><br>
<font face="Courier New, Courier, monospace">Cinelerra Infinity -
built: Jul 29 2024 01:18:06</font><br>
<font face="Courier New, Courier, monospace">........</font><br>
<font face="Courier New, Courier, monospace">Render::render_single:
Session finished.</font><br>
<font face="Courier New, Courier, monospace">** rendered 1781
frames in 6.387 secs, 278.848 fps</font><br>
<br>
<font face="Courier New, Courier, monospace">FFMPEG::open_decoder:
some stream times estimated:
/run/media/terje/Videoklipp/Cineform/opus.webm</font><br>
<font face="Courier New, Courier, monospace">audio0 pad 16 0 (16)</font><br>
<font face="Courier New, Courier, monospace">FFMPEG::open_decoder:
some stream times estimated:
/run/media/terje/Videoklipp/Cineform/opus.webm</font><br>
<font face="Courier New, Courier, monospace">Total excess of
backups: -50 </font><br>
<font face="Courier New, Courier, monospace">Session time: 0:01:49</font><br>
<font face="Courier New, Courier, monospace">Cpu time: user:
0:00:15.458 sys: 0:00:02.457</font><br>
</blockquote>
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