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为何qsv里的scale_qsv不能使用 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
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