I get the following crash (the first frame of the video appears on the surface of the cube and the right hand window before it dies)
GStreamer version: 0.10.30
Now playing stream.
New dynamic pad linked: video/x-raw-rgb
New dynamic pad linked: audio/x-raw-int
Gdk-ERROR **: The program 'GtkGLApp_x64' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadDrawable (invalid Pixmap or Window parameter)'.
(Details: serial 36773 error_code 9 request_code 137 minor_code 7)
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the --sync command line
option to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error() function.)
aborting...
Fedora 14 (2.6.35.6-45.fc14)
MacBook 4,1 (Intel 965GM chipset)
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Improving Video Streaming With GTK+ 3D Surfaces
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It would be much easier if source code is published...
$ ldd GtkGLApp_x64 | grep not
libpng12.so.0 => not found
libgtkglext-x11-1.0.so.0 => not found
libgdkglext-x11-1.0.so.0 => not found
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Here are my results:
Video is very slow. Something like 2fps but audio is correct, independent of input file bitrate. With high bitrate video (reported as New dynamic pad linked: video/x-raw-rgb, New dynamic pad linked: audio/x-raw-float, Stream with high frequencies VQ coding) it's the same 2fps but this time it seems to skip some frames every second or so and that causes the cube animation to also skip in sync with the video.
Compositing active: flickering on the rotating cube window. It seems to alternate between a part of my desktop and the cube animation. Although with a second video it alternates between solid black (maybe a part of an open terminal since I use black background?) and the cube animation. Also the alternating background image is always visible flickering even with other windows on top of GtkGLApp.
Without compositing everything works fine apart from the problems mentioned in the beggining.
GPU:
AMD, Radeon HD4200, 500MHz, 128MB (side-port)/ 256MB (shared)
CPU:
AMD Athlon II X4 630, 2.8GHz, 4GB
OS:
openSUSE 11.2
GUI:
KDE (Kwin) 4.5.3
Extra info:
catalyst drivers 10.11
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Improving Video Streaming With GTK+ 3D Surfaces
Phoronix: Improving Video Streaming With GTK+ 3D Surfaces
Within the open-source world, code examples and documentation can be particularly important in ensuring a lower barrier to participation. One developer, Jose Commins, has worked on creating demos, such as how to use OpenGL within GTK+. One of his projects is GtkGLApp, but now he's working on a new one involving real-time video streaming to GTK+ 3D surfaces...
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