Convert ts to mp4 ffmpeg12/19/2023 I've heard of projectX to demux a/v, as a possible solution. Audio files created with Audacity, ffmpeg, VLC, VSDC Video Editor all gave audio files of different size than the original video file, although they all had sound. However, when I played the file & viewed audio graph in Audacity, I noticed many blanked out areas (no sound). The length of both the audio & video files showed the same, so I exported the audio only and got file size same as original video. I then imported the out.mp4 clip into DaVinci Resolve video editor. If I use the extracted audio to replace that one in original file, the audio in resulting video file is out of sync (audio lagging). The out.mp4 file plays well, but when I extract audio from it, the length of audio is different to that of the video. I then used -bsf:a aac_adtstoasc flag & conversion passed, with 'Non-monotonous DTS' errors, resulting in incorrect timestamps in output file. I used ffmpeg -i input.ts -acodec copy -vcodec copy out.mp4 and conversion failed.
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