Specifying default track with mp4box

[rfman]

I'm using mp4box to create an mp4 with multiple audio and subtitle tracks. Is there a -default parameter or something that I can use to mark a track as default? Something along the lines of:

mp4box -add myfile.avi -add myfile.mp3 -add myfile2.aac:default

In the example above, the video should load and use myfile2.aac as the audio track. I'm aware one workaround might be to add a disable parameter for the non-default tracks, but since I'm working on a script for this, it would be much easier to specify a default track than to disable everything else.

Thanks in advance.

[rickydavao]

With regards to audio tracks, I don't really see the point, since the first audio track would automatically be the default track to play. Simply make your default audio track the first audio track when you mux your mp4.

As far as subtitle tracks, this was asked in a post back in May of this year. This was my response back then:

"From HandBrake's Wiki Pages:

Setting a Default Subtitle track
If you wish to have your player automatically select a subtitle track during playback, then you can select the “default” checkbox for the subtitle track you wish to enable. You should note that this does not currently work with Apple software or playback devices.
While this option is available for mp4 files, it does not currently serve any purpose. Default subtitle tracks will only be enabled on playback when using mkv files.

So I guess it can be done, but there's nothing out there that's going to read the flag to actually do it (that is, display the subtitles by default). I'm pretty sure you can set this as a function of the player (well, software players, at least), but then, of course, it will display subtitles by default for EVERY movie you play (as long as subtitles are present). "

Hope this helps!

[rfman]

Thank you sir! I wasn't aware that the first audio track would be the default one. And as for subtitles, if the wrong one gets loaded while playing a video, it's easy enough to select the right one.