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Why aren't file properties shown for MP4 files?

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I am using ubuntu 12.04. I have a .mp4 video for which I want to change default media player to vlc.

When I try to go to properties by right clicking on that video.

Why aren't file properties shown for MP4 files?

I get the following message. How to overcome this.

Why aren't file properties shown for MP4 files?

Output of mediainfo filename.mp4

General Complete name                            : Interview with MIT Physics Professor Walter Lewin.mp4 Format                                   : MPEG-4 Format profile                           : Base Media / Version 2 Codec ID                                 : mp42 File size                                : 10.7 MiB Duration                                 : 3mn 41s Overall bit rate mode                    : Variable Overall bit rate                         : 407 Kbps Encoded date                             : UTC 2008-10-16 15:15:29 Tagged date                              : UTC 2008-10-16 15:15:29 gsst                                     : 0 gstd                                     : 221656 gssd                                     : B4A7D0A24HH1345230487367165 gshh                                     : o-o---preferred---hkg05s03---v14---lscache4.c.youtube.com  Video ID                                       : 2 Format                                   : AVC Format/Info                              : Advanced Video Codec Format profile                           : [email protected] Format settings, CABAC                   : No Format settings, ReFrames                : 1 frame Codec ID                                 : avc1 Codec ID/Info                            : Advanced Video Coding Duration                                 : 3mn 41s Bit rate                                 : 280 Kbps Maximum bit rate                         : 997 Kbps Width                                    : 352 pixels Height                                   : 288 pixels Display aspect ratio                     : 1.222 Frame rate mode                          : Constant Frame rate                               : 29.970 fps Standard                                 : PAL Color space                              : YUV Chroma subsampling                       : 4:2:0 Bit depth                                : 8 bits Scan type                                : Progressive Bits/(Pixel*Frame)                       : 0.092 Stream size                              : 7.37 MiB (69%) Title                                    : (C) 2007 Google Inc. v08.13.2007. Encoded date                             : UTC 2008-10-16 15:15:29 Tagged date                              : UTC 2008-10-16 15:15:29  Audio ID                                       : 1 Format                                   : AAC Format/Info                              : Advanced Audio Codec Format profile                           : LC Codec ID                                 : 40 Duration                                 : 3mn 41s Bit rate mode                            : Variable Bit rate                                 : 125 Kbps Maximum bit rate                         : 280 Kbps Channel(s)                               : 2 channels Channel positions                        : Front: L R Sampling rate                            : 44.1 KHz Compression mode                         : Lossy Stream size                              : 3.30 MiB (31%) Title                                    : (C) 2007 Google Inc. v08.13.2007. Encoded date                             : UTC 2008-10-16 15:15:29 Tagged date                              : UTC 2008-10-16 15:15:29 

Answers

  • This is a confirmed bug in the Zeitgeist library which provides file info to Ubuntu Apps (including Nautilus) and seems to occur with MP4 files downloaded from Youtube, which are encoded with the Baseline level 1.1 profile. It does not happen with other MP4 files.
  • The file may play in VLC but that doesn't count since VLC internally includes all codecs.
  • There's no real fix for this until the bug itself is fixed.
  • To change the default player to VLC, simply do it from one of the other MP4 files which work, or follow the directions in this answer.
  • To display thumbnails for these videos, please follow the instructions in this answer.

Above steps effectively makes VLC default player and shows thumbnails properly for all videos (as shown below):

Why aren't file properties shown for MP4 files?

This is the result of a known bug in gstreamer that affects many AVC vid's, typically [email protected], [email protected] though maybe some others. https://bugs.launchpad.net/ubuntu/+source/gst-plugins-bad0.10/+bug/973014

Answered here on askubuntu Totem not playing certain videos in 12.04

There has been no movement towards applying the upsteam commit in either Ubuntu or Debian, the best self fix is to rebuild the bad plugin with patch I supplied though the moving of libgstvideoparsersbad.so to a .bak will provide some relief

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