Android, how to set meta data to MP4 file?

问题

I would like to set meta data to MP4 file.

I create MP4 file via:

new MediaMuxer(mPath, MediaMuxer.OutputFormat.MUXER_OUTPUT_MPEG_4)

and file has meta:

Title:   unknown
Artist:  unknown
Album:   unknown
Comment:
...

similar as: Here

I found that for API21+ i could make metadata via: MediaMetadata.Builder but how could i save metadata to created MP4 file?

Without extern library please.

Thank you.

回答1:

To edit/write metadata, Android SDK doesn´t have any method, probably by copyright issues, but you can use options like:

https://github.com/sannies/mp4parser

http://multimedia.cx/eggs/supplying-ffmpeg-with-metadata/

Probably this is what you are looking for (using FFmpeg): https://github.com/bytedeco/javacv/blob/master/src/main/java/org/bytedeco/javacv/FFmpegFrameRecorder.java

来源：https://stackoverflow.com/questions/36769579/android-how-to-set-meta-data-to-mp4-file