[Cin] AV1 yuv422p10le rendering with some output FFStream::seek I/O errors, seek fails

[Terje J. Hanssen]

So far it seems like 10-bit color depth yuv422p10le is only available 
for AV1 via FFmpeg encoders libaom-av1 and  librav1e.
That is not yet with the from  experience faster libsvtav1, which 
currently support pixel formats yuv420p and yuv420p10le.

My AV1 (video only) test run procedure using CinGG loading a 10-bit 
input file, resulted in 12% smaller file size than with h265. Visually 
the AV1 output file seemingly is ok, but there are some CinGG output 
"FFStream::seek I/O errors, seek fails" I don't know what are  !?


CinGG (built: Jul 29 2024 01:18:06, rpm on Leap)

    Render: File Format: FFMPEG | webm
    Video wrench: Compression: av1.webm (libaom?) | pixels: yuv422p10le
    Defaults:
         # this codec codes less than one frame per sec
         # and so even a few seconds of video can take
         # a very long time to encode
         cpu-used 5
         row-mt 1
         tiles 2x2
         strict -2
         threads 8

    15M av1_yuv422p10le_LP.webm
    ** rendered 1780 frames in 184.787 secs, 9.633 fps
    FFMPEG::open_decoder: some stream times estimated:
    /run/media/terje/Videoklipp/Cineform/av1_yuv422p10le_LP.webm
    FFMPEG::open_decoder: some stream times estimated:
    /run/media/terje/Videoklipp/Cineform/av1_yuv422p10le_LP.webm
    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
    .....snip
    FFStream::seek:
    /run/media/terje/Videoklipp/Cineform/av1_yuv422p10le_LP.webm
      retry limit, pos=87 tstmp=3480,   err: Input/output error
    ** seek fail 87, 3480


Verificated the output file with FFprobe:

ffprobe -hide_banner av1_yuv422p10le_LP.webm

    Input #0, matroska,webm, from 'av1_yuv422p10le_LP.webm':
       Metadata:
         ENCODER         : Lavf61.1.100
       Duration: 00:01:11.16, start: 0.000000, bitrate: 1709 kb/s
       Stream #0:0: Video: av1 (libdav1d) (Professional),
    yuv422p10le(pc, bt709/unknown/unknown), 1920x1080, SAR 1:1 DAR 16:9,
    25 fps, 25 tbr, 1k tbn
           Metadata:
    DURATION        : 00:01:11.160000000


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.cinelerra-gg.org/pipermail/cin/attachments/20240807/b3179a0b/attachment.htm>