How can I merge .webm (Audio) file and a .mp4 (Video) file using java?

Question

I have two files one is a .webm audio file and the other one is a .mp4 video file Is there a way to combine these two files together using java?

Thanks in advance.

Solution

This could be achieved by using ffmpeg C library via JNI or via executing ffmpeg command line binaries.

Here are the steps for command line execution:

1. Download FFmpeg: http://ffmpeg.org/download.html . You Can download the source from the repository and build them as per your machine architecture.

2. Extract downloaded file to specific folder, say c:\ffmpeffolder Using cmd move to specific folder c:\ffmpeffolder\bin

3. Run following command: $ ffmpeg -i audioInput.webm -i videoInput.mp4 -acodec copy -vcodec copy outputFile.avi

Command line Execution from Java: https://stackoverflow.com/a/8496537/2900034

This is it. outputFile.avi will be the resulting file.

Or if you want to work around ffmpeg C libraries

Here are some good starts.

1. JNI.
2. ffmpeg api example.