Step 4 (second attempt) (with re-encoding). ffmpeg -f concat -safe 0 -i ffmpeg_concat_list.txt -c copy final.mp4 ffmpeg -i video1.mp4 -filter_complex "setpts=PTS/1.1 atempo=1.1" -c:v libx264 -x264-params "nal-hrd=cbr" -b:v 2.5M -minrate 2.5M -maxrate 2.5M -bufsize 5M video1_faster.mp4Ĭreate a text file of this content: file 'video1_faster.mp4' In Adobe Premiere Pro CC 2017, I've exported 2 videos, each using these settings: Frame Rate: 30 My second attempt (of Step 4) results in a video that has a total bitrate of only 1645kbps.
What I want to do is speed up the first video to 110% speed (without changing audio pitch) and then concatenate it with the second video (which will remain at normal speed), and I want the resulting video to have a bitrate of 2.5 Mbps (since that's what Wistia told me should be the minimum for my upload).Ĭurrently, my first attempt results in a video where the 2nd part is all mangled and shows bright green, etc. I've already read the other articles about concatenating but couldn't find any that discuss specifying the output bitrate.
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