Thank you for your response.
What do you specifically mean by "sample"? I am playing a file where the video duration is longer than the audio duration. After the audio ends, if I perform a seek, the video freezes. I think this might be due to a problem with audio-video synchronization. When using the standard version of VLC, playback works fine, and I can still seek after the audio ends. Since I am customizing VLC-Android, I would like to know exactly which code files or a few files handle this logic, or if you can tell me the general approach to solving this issue, that would be great (I also considered the case where the video duration is less than the audio duration). Thank you very much.