Terje, thanks for noting the problem with av1.webm to our attention. I will fix it by adding the g=30 and keyint_min=30 to that render format. "h265.mp4 and h264.mp4" always work because of the addition of the lines "# use framerate for 1 keyframe/sec, needed for seeks; keyint_min=25;x264-params keyint=25". So the new lines for av1.webm of "g=30 and keyint_min=30" is the equivalent.
Andrew, I tried using --kf-min-dist=30 and -kf-max-dist=30 and it rendered but the output was not playable. So since the above solution worked, I just will use the above instead. Still have to test av1_svt... next. On Wed, Aug 7, 2024 at 2:52 PM Terje J. Hanssen <[email protected]> wrote: > > > Den 07.08.2024 21:38, skrev Phyllis Smith via Cin: > > g=30 >> keyint_min=30 >> > Seems to work for av1.webm format -- still testing. I want to test > Andrew's suggestions next. > > On Wed, Aug 7, 2024 at 1:18 PM Andrew Randrianasulu < > [email protected]> wrote: > >> On Wed, Aug 7, 2024 at 9:13 PM Phyllis Smith via Cin >> <[email protected]> wrote: >> > >> > Summary is that the error message is due to lack of keyframes and the >> workaround is to use Transcode. >> > BUT hopefully a better solution with the Render format parameters can >> be found. The render fix for h264/h265 formats is the addition of the >> lines below (which obviously is not pertinent to av1). I will see if I can >> find an alternative, but might not. >> >> aomenc --help mentions >> >> --kf-min-dist=<arg> Minimum keyframe interval (frames) >> --kf-max-dist=<arg> Maximum keyframe interval (frames) >> >> and there seems to be way (aom-params) to pass libaom specific options >> via ffmpeg's ... >> >> so .. >> aom-params=kf-min-dist=25:kf-max-dist=25 ? >> >> for svt-av1 you hopefully can use just keyint= with svtav1-params line? >> command line svt av1 encoder seems to default for 5 seconds? >> >> Also, may be add keyint_min=25 (for 25 fps vid) as generic libav* >> (ffmpeg) option >> >> >> >> >> >> # use framerate for 1 keyframe/sec, needed for seeks >> >> keyint_min=25 (or keyint_min=30 for x265) >> >> x264-params=keyint=25 (or x265-params-keyint=30 for x265) >> > >> > >> > About the error message: >> >> >> >> FFStream::seek: >> /run/media/terje/Videoklipp/Cineform/av1_yuv422p10le_LP.webm >> >> retry limit, pos=207 tstmp=8280, err: Input/output error >> >> ** seek fail 207, 8280 >> > >> > >> > Seeking Issues ( >> https://cinelerra-gg.org/download/CinelerraGG_Manual/Seeking_Issues.html) >> >> >> >> If you have an issue playing a video and not seeing it in the >> Compositor (just see a black >> >> screen), it is most likely due to the media not being designed to be >> editable. It is most likely >> >> not damaged. Generally it just does not have keyframes which are >> needed for seeking >> >> which is what is done when you move around the media and start playing >> in the middle. >> >> The media plays just fine in the compositor if you always play from the >> beginning because >> >> then you don’t need keyframes to seek. You can get around this problem >> if you proxy the >> >> media. A good choice to use for the proxy would be use scalar, >> ffmpeg/mp4 and size of 1/2. >> >> >> >> The proxied media can then seek and you will see it play in the >> compositor because keyframes exist. >> > >> > Or use TRANSCODE which adds keyframes when media is not seekable (see >> Manual for details). This is particularly useful for the mkv container, >> which often has seek problems. >> > >> > Just a reminder about the message below. >> >> >> >> FFMPEG::open_decoder: some stream times estimated: >> > >> > This is not a problem. Basically, when you open a file if a stream has a >> known duration, there is no message. If the duration is unknown, it is >> estimated by using the File Size and Bitrate to estimate the duration. >> > ---------------------------------------- > > > @Andrew, @Phyllis > > Thank for your comments and suggestions, which I so far only have read > while doing some alternative testing. > > First, to ensure this was correct understood: > I didn't notice the same error messages using the same input file and > rendering to h265.mp4 and h264.mp4 > > Now I have also tried to render the same input file using the (4.3x > faster) av1_svt, but with the available 8-bit color depth in 10-bit mode: > 17M av1_svt_yuv420p10le_SR.webm > > Below follows output messages with no error messages, so yes, I think some > preset parameters possibly should be added to the av1_aom.webm: > > FFMPEG::open_decoder: some stream times estimated: > /Videoklipp/Cineform/cfhd01.mkv > Svt[info]: ------------------------------------------- > Svt[info]: SVT [version]: SVT-AV1 Encoder Lib v1.8.0 > Svt[info]: SVT [build] : GCC 10.3.1 20210422 (Red Hat 10.3.1-1) 64 > bit > Svt[info]: LIB Build date: Jul 31 2024 07:22:12 > Svt[info]: ------------------------------------------- > Svt[info]: Number of logical cores available: 20 > Svt[info]: Number of PPCS 76 > Svt[info]: [asm level on system : up to avx2] > Svt[info]: [asm level selected : up to avx2] > Svt[info]: ------------------------------------------- > Svt[info]: SVT [config]: main profile tier (auto) level (auto) > Svt[info]: SVT [config]: width / height / fps numerator / fps denominator > : 1920 / 1080 / 25 / 1 > Svt[info]: SVT [config]: bit-depth / color format : 10 > / YUV420 > Svt[info]: SVT [config]: preset / tune / pred struct : > 10 / PSNR / random access > Svt[info]: SVT [config]: gop size / mini-gop size / key-frame type > : 161 / 16 / key frame > Svt[info]: SVT [config]: BRC mode / rate factor : CRF > / 35 > Svt[info]: ------------------------------------------- > FFMPEG::open_decoder: some stream times estimated: > /Videoklipp/Cineform/cfhd01.mkv > Render::render_single: Session finished. > ** rendered 1780 frames in 51.541 secs, 34.536 fps > FFMPEG::open_decoder: some stream times estimated: > /Videoklipp/Cineform/av1_svt_yuv420p10le_SR.webm > FFMPEG::open_decoder: some stream times estimated: > /Videoklipp/Cineform/av1_svt_yuv420p10le_SR.webm > FFMPEG::open_decoder: some stream times estimated: > /Videoklipp/Cineform/av1_svt_yuv420p10le_SR.webm > FFMPEG::open_decoder: some stream times estimated: > /Videoklipp/Cineform/cfhd01.mkv > > > > >
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