missing a plug-in

[JongIlLee]

hi
I am making application to play mp4 file.
The designated c program.
compile is not a problem,
When you run an executable program
"Installation is missing a plug-in"
The causes of the problem.
I think there may be a problem that occurs when using the decodebin element..
Please tell me how to get down to the library decodebin
os is ubuntu 14.04.
Thank you.

[JongIlLee]

um...
gst-plugin-base,good,ugly,bad

install success

i don't know problem.....

[Wonchul Lee]

Hello,

It seems that you omitted to install gst-libav which has software decoder plugins or something else.
When you have further question or problem, it would be good to provide a debug log or more details (which plugin is missing).
You can get the log by setting GST_DEBUG env variable, https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gst-running.html

> On Jun 29, 2016, at 12:33 PM, JongIlLee <[hidden email]> wrote:
>
> um...
> gst-plugin-base,good,ugly,bad
>
> install success
>
> i don't know problem.....
>
>
>
> --
> View this message in context: http://gstreamer-devel.966125.n4.nabble.com/missing-a-plug-in-tp4678291p4678292.html
> Sent from the GStreamer-devel mailing list archive at Nabble.com.
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[Marc Leeman]

> Please tell me how to get down to the library decodebin

You're not giving enough information to go on:

Try something like this and post the output:

marc@drd1812:~/Development$ gst-launch-1.0 playbin
uri=file:///home/marc/stinger.mp4 -v


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[JongIlLee]

Thank you all who gave answers.

Problem decodebin error occurs in the pipeline.

We are using the current gstreamer-1.0,

gst-launch-uri = 1.0 playbin file: the ///home/wisethan/Desktop/source/gstreamer/TheSample.mp4 occurs during execution.

oggfile normal operation. mp4 file error occurs only when running

error are missing element: occurs H.264 decoder.

I am using the ubuntu 12.04, do I need to install more?

[Arjen Veenhuizen]

gst-inspect-1.0 avdec_h264 will probably give you:

No such element or plugin 'avdec_h264'

indicating that it is missing.

As suggested above, install gst-libav

[JongIlLee]

hi!

Thank you to everyone who answered.

Problem solved.

There was a problem occurs x264 andoe the package is installed,

Then were the VA-API error occurs

(libva info: VA-API version 0.35.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so)

when running playbin,

has resolved to apt-get install i965-va-driver.

Thank you very much.