Add audio to video in android

Question

I want to develop an android application which can record a video (mp4), then I have some audio files (mp3) in my resources folder, and I want to add it to the end of the video.

Answer 1

Combing to files with different audio codecs is not easily possible. I would do the following:

• convert the MP3 files to the same format as the video (most likely AAC in an MP4 container)
• Now you can use mp4parser's AppendExample to append the recorded video with the pre-recorded sound
• The result will be one MP4 file containing the video first and the sound.

Full disclosure: I am the maintainer of mp4parser.