How to use GLMediaPlayer FFMPEG

hi,
i just upgraded to rc10(with maven) and wanted to try some of framework features I did not use until now.

So I'm experimenting with the GLMediaPlayer, but I can't get it to work.

I run Fedora 17 x64 have ffmpeg installed and installed avutils manuelly.

The Problem is that I get the following error,
FFMPEG Tool library incomplete: [ avutil false, avformat false, avcodec false]

My question know of course how I can fix it so that it will work on my PC, on the other hand I wonder if there is somewhere some more documentation/tutorial about the PlayerBackends. Like one which platforms does it work, what libs are necessary and how would I deploy an app which uses the media player.

Hi

Rather install LibAV, don't forget its util package(s) too.

On 10/20/2012 05:51 PM, gouessej [via jogamp] wrote:
> Hi
>
> Rather install LibAV, don't forget its util package(s) too.

Yes.

Further more .. (call for help/advise here), we actually jump
through hoops to identify the _installed_ ffmpeg/libav library
and whether and how we can use it.
This is due to the usual license/patent crap,
which scars me enough to not ship a precompiled bundle :)

Well .. if anybody can solve this, we may could at least ship a
fall back library. On the other hand .. maybe it's good to use
the 'default' ones.
However, this way - we have nothing avail on OSX and Windows right now.

Anybody dares to write a backend for the default media libraries
on those platforms ?

~Sven

Hi again so I understand that the media player is just a proof of concept kind of thing, but because I'm curiouse about it I till want to get it to run^^

So I tried to install libav but first had to remove ffmpeg(have ffmpeg-compat package?)
With libav installed(but ffmpeg removed) the media player starts up but still can't play a video file, because ffmpeg is missing :D

OK: Unresolved symbol <avcodec_open2>, but has alternative <avcodec_open>
OK: Unresolved symbol <avcodec_decode_audio4>, but has alternative <avcodec_decode_audio3>
OK: Unresolved optional symbol <avformat_free_context>
OK: Unresolved symbol <avformat_close_input>, but has alternative <av_close_input_file>
Fail: Could not resolve symbol <avformat_open_input>: not optional, no alternatives.
FFMPEG: Not Available

so as I said I'm running fedora 17 which packages do I need excatly to run this?

Can you list the libavformat version used by your Fedora F17?

Fail: Could not resolve symbol <avformat_open_input>: not optional, no alternatives.

For some reason your system installed version of libavformat do not contain the avformat_open_input function or we simply failed to auto-detect it.

Please try run objdump -T on your Fedora built libavformat.so and check for avformat_open_input
On my Ubuntu 12.04 system I get:
objdump -T /usr/lib/i386-linux-gnu/libavformat.so.53.21.0 | grep avformat_open_input
000cde80 g    DF .text 000003dc  LIBAVFORMAT_53 avformat_open_input

I think your libavformat got a av_open_input_file function instead of avformat_open_input
objdump -T /usr/lib/i386-linux-gnu/libavformat.so.*| grep av_open_input_file

Can you please test the following JOGL avformat-F17 branch and check if it fixes your issue ?
https://github.com/xranby/jogl/compare/avformat-F17

Hi,
so I took a look at the things you wrote.
It seems to me that there is no libav(format) for f17.

At the beginnning I had only the ffmpeg-compat package installed then I installed ffmpeg, but no libav*.
Then I added a repository(rpm-sheres) to install libav because the standard one dosn't have libav.
After installing this libav package I only got libavutil, libavahi-common and libavahi-client, so still no libavformat

Searching for this issue I found this:
http://www.linuxquestions.org/questions/linux-software-2/libavformat-so-334437/

So can it be, that libavformat isn'T included because of legal issues? And isn't it possible to use the features of standard ffmpeg?
I don't know that much about all these linux packages, but isn't ffmpeg something different then libav?

It is possible that libavformat is not included into fedora for legal issues.
JogAmp itself only use the system installed libav/ffmpeg librarys untill the legal situation is cleared up.

How are MPlayer, FFmpeg, VLC, libav*, etc connected?
libav is a fork of ffmpeg "mainly to get rid of the old maintainer dictatorship"
http://blog.pkh.me/p/13-the-ffmpeg-libav-situation.html

Maybe use the repository for "tainted" RPMs.

Danny02 wrote

And isn't it possible to use the features of standard ffmpeg?
I don't know that much about all these linux packages, but isn't ffmpeg something different then libav?

The changes I have added in https://github.com/xranby/jogl/compare/avformat-F17
is intended to extend JOGL compability to use the features of standard ffmpeg if available.

Danny02 wrote

OK: Unresolved symbol <avformat_close_input>, but has alternative <av_close_input_file>

 
We already had one fallback for avformat_close_input (av_close_input_file got found in you systems ffmpeg library)

Danny02 wrote

Fail: Could not resolve symbol <avformat_open_input>: not optional, no alternatives.

The avformat-F17 branch will add another fallback if also avformat_open_input is missing:
Please compile and test the JOGL  avformat-F17 branch and check if it fixes this issue.
Please post the library version used by your system so that i can include the version numbers in the avformat-F17 branch.

ok will try this today