Haihao Xiang
fa3da243e6
hwcontext_vaapi: remove duplicate formats from sw_format list ...
hwcontext_vaapi maps different VA fourcc to the same pix_fmt for U/V
plane swap cases, however duplicate formats are not expected in sw_format
list when merging formats.
For example:
ffmpeg -loglevel debug -init_hw_device vaapi -filter_hw_device vaapi0 \
-f lavfi -i smptebars -vf \
"hwupload=derive_device=vaapi,scale_vaapi,hwdownload,format=yuv420p" \
-vframes 1 -f null -
Without this fix, an auto scaler is required for the above command
Duplicate formats in ff_merge_formats detected
[auto_scaler_0 @ 0x560df58f4550] Setting 'flags' to value 'bicubic'
[auto_scaler_0 @ 0x560df58f4550] w:iw h:ih flags:'bicubic' interl:0
[Parsed_hwupload_0 @ 0x560df58f0ec0] auto-inserting filter
'auto_scaler_0' between the filter 'graph 0 input from stream 0:0' and
the filter 'Parsed_hwupload_0'
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
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fa3da243e6