Prores: Packet too small

[veronica]

I’m getting a lot of these warnings when using Iris V2 + ProRes from the command line:

[prores_ks @ 0000021F61176A40] Packet too small: is 544393, needs 761666 (slice: 1279). Correct allocation is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[prores_ks @ 0000021F61176A40] If you want to help, upload a sample of this file to https://streams.videolan.org/upload/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)

Am I doing anything wrong?

Here’s the command I’m running:

 ffmpeg -i input.mkv -sws_flags spline+accurate_rnd+full_chroma_int -color_trc 1 -colorspace 1 -color_primaries 1 -map_metadata 0 -map_metadata:s:v 0:s:v -map_metadata:s:a:0 0:s:i:0 -filter_complex tvai_up=model=iris-2:scale=1:compression=0.16:details=0.26:blur=0.45:noise=0.01:halo=0.05:preblur=0.25:blend=0.10:device=0:vram=1:instances=1,scale=out_color_matrix=bt709 -c:v prores_ks -profile:v 1 -vendor apl0 -quant_mat lt -bits_per_mb 525 -pix_fmt yuv422p10le -map 0:a -c:a copy -map 0:s -c:s copy -metadata:s:s:0 language=eng output.mkv

DxDiag.txt (76.7 KB)

[tony.topazlabs]

Hello,

That warning does seem to come up with certain input video types. In the past, we have not seen issues importing the files or playing them back in any ProRes-compatible software so I would say it’s safe to ignore.

[veronica]

Thanks for the response. I was concerned data would be dropped. It’s hard to pinpoint where exactly in the file it happens as it doesn’t print enough information, but I haven’t noticed anything yet.

The input here is h264 HD video, for the record:

Stream #0:0(eng): Video: h264 (High), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn