famousgarkin/fix.sh

Created March 18, 2017 18:10

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ffmpeg fix "Video uses a non-standard and wasteful way to store B-frames ('packed B-frames'). Consider using the mpeg4_unpack_bframes bitstream filter without encoding but stream copy to fix it."

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fix.sh

ffmpeg -i "in.avi" -bsf:v mpeg4_unpack_bframes -vcodec copy "out.avi"

BlackPepperAPI commented Jan 12, 2020

Hi @famousgrakin. If I would like to change the frame rate as well, is it possible to add -r <frame_rate>>?
From what I understand, it wouldn't work to have -vcodec copy when changing frame rate, but at the same time I want to fix the "packed bit stream issue (packed B-frames)" but -bsf:v mpeg4_unpack_bframes wouldn't work if vcodec is not copy ( as mentioned by the warning, "... without encoding but stream copy"

Do you have any suggestion how to fix this while changing the frame rate? The reason I want to change the frame rate is to make my video constant frame rate, not variable frame rate.

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