Audio and video ffmpeg command to extract pixel format

1. Extract YUV

Extract 3 seconds of data, the resolution is the same as the source video

ffmpeg -i test_1280x720.mp4 -t 3 -pix_fmt yuv420p yuv420p_orig.yuv

Extract 3 seconds of data and convert the resolution to 320x240

ffmpeg -i test_1280x720.mp4 -t 3 -pix_fmt yuv420p -s 320x240 yuv420p_320x240.yuv

2. Extract RGB

Extract 3 seconds of data and convert the resolution to 320x240

ffmpeg -i test.mp4 -t 3 -pix_fmt rgb24 -s 320x240 rgb24_320x240.rgb

3. Conversion between RGB and YUV

ffmpeg -s 320x240 -pix_fmt yuv420p -i yuv420p_320x240.yuv -pix_fmt rgb24 rgb24_320x240_2.rgb

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