This is an example of muxing Audio and Video of same length and Quality

Android App to Append Mp4 Videos or Merge Audio files with video files on your Android device.

This is an example of muxing Audio and Video of same length and Quality

A simple class to generate MP4 video by mixing images, videos and audio tracks

ISO SAX is a callback-based parser for ISO container files (ISO/IEC 14496-12), e.g. MPEG-4. See README for details.

MP4 merger sample to answer the StackOverflow question https://stackoverflow.com/questions/72132908/how-to-combine-multiple-mp4-videos-into-one-video-using-jcodec-in-java