Re: [PATCH v5 5/8] clk: qcom: gcc-msm8939: mark Venus core GDSCs as hardware controlled

[Bryan O'Donoghue <bod@kernel.org>]

On 07/05/2026 10:53, Erikas Bitovtas wrote:
> Running the following ffmpeg command:
> ffmpeg -i Videos/big_buck_bunny_1080p_H264_AAC_25fps_7200K.mp4
> -input_format h264 -c:v vp8_v4l2m2m -pix_fmt nv12
> big_buck_bunny_1080p_H264_AAC_25fps_7200K.vp8.mp4
> 
> Fails with:
> [vp8_v4l2m2m @ 0xffffb0386870] Using device /dev/video1
> [vp8_v4l2m2m @ 0xffffb0386870] driver 'qcom-venus' on card 'Qualcomm
> Venus video encoder' in mplane mode
> [vp8_v4l2m2m @ 0xffffb0386870] requesting formats: output=NV12/nv12
> capture=VP80/none
> [mp4 @ 0xffffb4b3b7e0] Could not find tag for codec vp8 in stream #0,
> codec not currently supported in container
This is an ffmpeg error, rejecting saving vp8 in an mp4 file. Anyway 
this would do nothing on the encoder /dev/video1 is 'Qualcomm Venus 
video encoder' above

Try:

v4l2-ctl --verbose 
--set-fmt-video-out=width=1280,height=720,pixelformat=NV12 
--set-selection-output target=crop,top=0,left=0,width=1280,height=720 
--set-fmt-video=pixelformat=H264 --stream-mmap --stream-out-mmap 
--stream-from=/media/cyclists_1280x720_92frames.yuv 
--stream-to=/tmp/cyclists_1280x720_92frames.h264 -d /dev/video1

v4l2-ctl --verbose 
--set-fmt-video-out=width=1280,height=720,pixelformat=NV12 
--set-selection-output target=crop,top=0,left=0,width=1280,height=720 
--set-fmt-video=pixelformat=HEVC --stream-mmap --stream-out-mmap 
--stream-from=/media/cyclists_1280x720_92frames.yuv 
--stream-to=/tmp/cyclists_1280x720_92frames.hevc -d /dev/video1

---
bod