---------- Forwarded message --------- От: Wang, Fei W <fei.w.wang-at-intel.com@ffmpeg.org> Date: пт, 22 нояб. 2024 г., 09:10 Subject: Re: [FFmpeg-devel] qsvenc.c & AV_CODEC_FLAG_INTERLACED_DCT To: ffmpeg-devel@ffmpeg.org <ffmpeg-devel@ffmpeg.org> On Thu, 2024-11-21 at 11:50 +0300, Andrew Randrianasulu wrote:
Hello.
Recently I teached cinelerra-gg to use qsv encoders in ffmpeg (libavcodec) and some test were working but some not.
We nailed it down to top-field first material, like HDV files. bff files like consumer version of DV and progressive worked fine.
I looked at source and ... I thought condition at
http://git.ffmpeg.org/gitweb/ffmpeg.git/blob/HEAD:/libavcodec/qsvenc.c#l852
must contain case for bff, but I tried this and it was reportedly not helping?
We currently set flags = ildct+ilme on interlaced streams, I hope to avoid special-casing qsv encoders, but may be we have no other choice?
I asked user (Terje) to add +ildct flag to his normal system ffmpeg line and it started to fail too:
https://lists.cinelerra-gg.org/pipermail/cin/2024-November/009123.html
AV1 doesn't support interlaced frame. You may add deinterlace filter before encoder after apply this patch: https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=13372 cmd: ffmpeg -hide_banner -qsv_device /dev/dri/renderD128 - hwaccel_output_format qsv -i input.mp4 -pix_fmt nv12 -vf vpp_qsv=deinterlace=advanced -c:v av1_qsv -f null - Thanks Fei
_______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
_______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".