ffmpeg -hwaccel qsv -i input.mp4 -vf scale_qsv=1280:720 -c:v h264_qsv -an output.mp4
会报Impossible to convert between the formats supported by the filter 'graph 0 input from stream 0:0' and the filter 'auto_scaler_0'的错误
log里显示的scale_qsv部分是:
[Parsed_scale_qsv_0 @ 0000018bff490e00] Setting 'w' to value '1280'
[Parsed_scale_qsv_0 @ 0000018bff490e00] Setting 'h' to value '720'
[graph 0 input from stream 0:0 @ 0000018b807fef00] Setting 'video_size' to value '1920x1080'
[graph 0 input from stream 0:0 @ 0000018b807fef00] Setting 'pix_fmt' to value '0'
[graph 0 input from stream 0:0 @ 0000018b807fef00] Setting 'time_base' to value '1/941235'
[graph 0 input from stream 0:0 @ 0000018b807fef00] Setting 'pixel_aspect' to value '1/1'
[graph 0 input from stream 0:0 @ 0000018b807fef00] Setting 'frame_rate' to value '941235/15703'
[graph 0 input from stream 0:0 @ 0000018b807fef00] w:1920 h:1080 pixfmt:yuv420p tb:1/941235 fr:941235/15703 sar:1/1
[format @ 0000018bff490f00] Setting 'pix_fmts' to value 'nv12|p010le|qsv'
[auto_scaler_0 @ 0000018bff1fa340] Setting 'flags' to value 'bicubic'
[auto_scaler_0 @ 0000018bff1fa340] w:iw h:ih flags:'bicubic' interl:0
[Parsed_scale_qsv_0 @ 0000018bff490e00] auto-inserting filter 'auto_scaler_0' between the filter 'graph 0 input from stream 0:0' and the filter 'Parsed_scale_qsv_0'
Impossible to convert between the formats supported by the filter 'graph 0 input from stream 0:0' and the filter 'auto_scaler_0'
Error reinitializing filters!
Failed to inject frame into filter network: Function not implemented
Error while processing the decoded data for stream #0:0
是哪个步骤错了ma