VideoReader - Matlab R2014b - Ubuntu 15.10

Hi everybody

I've tried to get access to a AVI-File in Matlab R2014b under Ubuntu 15.10 with the following commands:

info=mmfileinfo('rpn003a02.avi');
v=VideoReader('rpn003a02.avi');

I've tested these two commands with different coded videos (FFV1, FFVhuff and Uncompressed planar YUV 4:4:4). All tests have failed. I always got the following error messages:

Error using mmfileinfo (line 70)
The VideoReader plugin libmwgstreamerplugin failed to load properly.

Error using VideoReader/init (line 619)
The VideoReader plugin libmwgstreamerplugin failed to load properly.

Error in VideoReader (line 172)
            obj.init(fileName);

Currently I've installed all available gstreamer0.10 packages under Ubuntu and the gstreamer0.10-ffmpeg plugin out of a PPA source. This should actually help according to similar question I found on google. So I have no further ideas to solve this problem. The gstreamer1.0 packages are also on my system. Maybe they are the source of my problem, but I cannot remove them, because they are necessary for many other applications.

I would appregiate, if somebody could help me?

Kind regards

Daniel Matthes

[Daniel Matthes]

I've currently found out, that the problem is not a matlab problem. It is a Gstreamer problem. After the installation of the gstreamer0.10-ffmpeg plugin, I've tested the following command:

gst-launch-0.10 playbin2 uri=file://~/rpn003a02.avi

The outcome of this is the following error message:

Leitung wird auf PAUSIERT gesetzt ...
Leitung läuft vor …
FEHLER: Von Element /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstAviDemux:avidemux0: Interner Datenstromfehler.
Zusätzliche Fehlerdiagnoseinformation:
gstavidemux.c(5212): gst_avi_demux_loop (): /GstPlayBin2:playbin20/GstURIDecodeBin:uridecodebin0/GstDecodeBin2:decodebin20/GstAviDemux:avidemux0:
streaming stopped, reason not-negotiated
FEHLER: Leitung läuft nicht vor.
Leitung wird auf NULL gesetzt ...
Leitung wird geleert ...

Did anybody has/had a similar problem and a corresponding solution?

Regards Daniel

[Qiang GUO]

Hi, I meet this problem currently. The videoreader object can read some avi video, not other avi video. I am working on this now. If you have some solution, please tell me. " Error using VideoReader/init (line 447) The VideoReader plugin libmwgstreamerplugin failed to load properly. Error in VideoReader (line 146) obj.init(fileName);"

[Walter Roberson]

Qiang GUO, did you try the gstreamer fix?

[Qiang GUO]

That's the problem! Problem solved by this link http://stackoverflow.com/questions/36150689/matlab-on-ubuntu-15-04-the-videoreader-plugin-libmwgstreamerplugin-failed-to-lo

Answer 1

[Walter Roberson]

It might be the gstreamer problem; see http://www.mathworks.com/matlabcentral/answers/94531-why-do-i-receive-an-error-when-creating-a-videoreader-object-on-linux-in-matlab-r2010b-7-11#answer_103883 and note that the problem has other symptoms than just the one shown in that Question.

[Daniel Matthes]

Thank you very munch Walter for this hint! Your mentioned workaround brought me one step forward. Now I get access to the videos, which are "Uncompressed planar YUV 4:4:4" coded. If I try to access to FFV1 and FFVHuff coded file, I get still an error. Currently the following one:

Could not read file due to an unexpected error. Reason: Unable to initialize the video obtain properties

Did you have another hint for me?

Kind regards Daniel

[Walter Roberson]

Sorry, I do not have any additional ideas.

Answer 2

[holmes shuan]

Problem solved:

sudo add-apt-repository ppa:mc3man/gstffmpeg-keep
sudo apt-get update 
sudo apt-get install gstreamer0.10-ffmpeg
sudo apt-get install gstreamer0.10-tools
sudo apt-get install gstreamer0.10-plugins-good

[Jingya Liu]

It works, thanks a lot.