FFmpeg/libavfilter
Wenbin Chen 636a629ff6 libavfilter/vf_overlay_qsv: Use format of first input to set output format for overlay_qsv
overlay_qsv hard coded to use nv12 as output format. Now use the format
of the first input to set output format.

For detailed information of supported format on different platform,
please see the "composition" rows in "Video Processing Features" at
below link:
https://www.intel.com/content/www/us/en/develop/documentation/media-capabilities-of-intel-hardware/top.html

Signed-off-by: Wenbin Chen <wenbin.chen@intel.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
2022-07-20 12:35:23 +08:00
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