ffmpeg H264_qsv encoding generates horizontal green bar at the bottom of the video

For the developers that use FFmpeg in their software.
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leonyusgp
Posts: 2
Joined: Mon Apr 29, 2019 9:45 am

ffmpeg H264_qsv encoding generates horizontal green bar at the bottom of the video

Post by leonyusgp » Mon Apr 29, 2019 9:48 am

hi there,

I am using ffmpeg 4.1.3 H264_qsv encoder to capture a video from camera at 1920 x 1080.

the camera outputs BGRA frame, and I use Intel IPP function ippiBGRToYCbCr420_8u_AC4P2R to convert it to NV12 format. then the NV12 frame is passed to H264_qsv encoder. the video file extension is mp4.

however, the video has a horizontal green bar at the bottom of video. the height of the bar is a few pixels and the width is across the full frame.

does anyone have some advices how to debug the problem?

thank you and regards

Leon

leonyusgp
Posts: 2
Joined: Mon Apr 29, 2019 9:45 am

Re: ffmpeg H264_qsv encoding generates horizontal green bar at the bottom of the video

Post by leonyusgp » Wed May 08, 2019 6:45 am

problem is solved. make height value multiple of 32.

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