Bug#839061: easytag: Error reading and writing tags for big mp4 video files > 4 or 5 GB

[Matthias Mann]

Package: easytag
Version: 2.2.4-1
Severity: important
Tags: lfs

Dear Maintainer,

If I try to open a 5 GB long mp4 file with easytag I get in the log window
this message:

Error reading tags from file: '/path/to/video.mp4'
File contains no audio track: '/path/to/video.mp4'

After that it is possible to write text and set images into the tag fields.
But it is impossible to write this changes. Trying this I get a popup with
error message:

Error writing tag type 4.

This video file is a self x264 encoded mp4 file with mp3 audio stream using
ffmpeg. Smaller mp4 files I created like this with exactly the same ffmpeg
options did not made any problems with easytag. But this files had only a
size of 500 MB till 1.5 GB so I think easytag has no support for files
larger than 2 or 4 GB.

But support for large files is very important I mean because full HD files
are sometimes 6 till 8 GB big and in some cases bigger than 10 till 15 GB.


-- System Information:
Debian Release: 8.6
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.37-nt.01 (SMP w/4 CPU cores)
Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages easytag depends on:
ii  libc6               2.19-18+deb8u6
ii  libflac8            1.3.0-3
ii  libgcc1             1:4.9.2-10
ii  libgdk-pixbuf2.0-0  2.31.1-2+deb8u5
ii  libglib2.0-0        2.42.1-1+b1
ii  libgtk-3-0          3.14.5-1+deb8u1
ii  libid3-3.8.3c2a     3.8.3-15
ii  libid3tag0          0.15.1b-11
ii  libogg0             1.3.2-1
ii  libopus0            1.1-2
ii  libopusfile0        0.6-1
ii  libpango-1.0-0      1.36.8-3
ii  libspeex1           1.2~rc1.2-1
ii  libstdc++6          4.9.2-10
ii  libtag1c2a          1.9.1-2.1
ii  libvorbis0a         1.3.4-2
ii  libvorbisfile3      1.3.4-2
ii  libwavpack1         4.70.0-1

Versions of packages easytag recommends:
ii  gnome-icon-theme  3.12.0-1
ii  gvfs              1.22.2-1
ii  yelp              3.14.1-1

easytag suggests no packages.

-- no debconf information