MP4Box: blank ":name=" parameter sometimes results in error

[bilditup1]

So probably? due to the patch for #873, supplying nothing to the ":name" modifier for 'add' results in this error:

[Importer] Unknown input file type for "new_chapters.xml:name=:" Error importing new_chapters.xml:name=:chap: Requested URL is not valid or cannot be found

but ONLY when
a) importing a xml/ttxt chapters track
b) putting the name parameter ahead of the chaps parameter.

For example,

mp4box -add "video.mp4#trackID=1" -add "new_chapters.xml:name=:chap" -new "video_new.mp4"

will result in the above error, but

mp4box -add "video.mp4#trackID=1" -add "new_chapters.xml:chap:name=" -new "video_new.mp4"

will work fine.

All of this is happening with the latest nightly x86 build, gpac-0.7.2-DEV-rev200-g9566a94-master, on Windows 10 x64.

(FWIW, the purpose of supplying a blank name parameter is to avoid having the default trackname mp4box generates being written.)

[aureliendavid]

Hi,

The fix for #873 indeed introduced some problems.

I pushed a fix for both. You might want to re-check your test cases for both this issue and #873 but it looks fine on my end now (with rev>=232).

Thanks for reporting.