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18 commits

Author SHA1 Message Date
Michael Olbrich
3c66c2a43d dmabuf: fix mmap counting 
A successful gst_dmabuf_mem_map must always increment the mmap count.
Otherwise the first gst_dmabuf_mem_unmap will unmap the memory and all
other user will access unmapped memory.

https://bugzilla.gnome.org/show_bug.cgi?id=706680
 2013-08-26 09:29:32 +02:00
Benjamin Gaignard
84a0934883 allocators: dmabuf: allow testing allocator type 
In decide_allocation function some element may when to test the proposed allocator.
For example like this:
if (gst_query_get_n_allocation_params (query) > 0) {
	GstAllocator * allocator;
	GstAllocationParams params;
	gst_query_parse_nth_allocation_param (query, 0, &allocator, &params);
	if (g_strcmp0(allocator->mem_type, GST_ALLOCATOR_DMABUF) == 0)
		GST_DEBUG("got dmabuf allocator");
	else
		GST_DEBUG("got an other allocator");
}

https://bugzilla.gnome.org/show_bug.cgi?id=703659
 2013-07-15 15:43:07 +02:00
Benjamin Gaignard
e90e2bb822 dmabuf: Make sure that memory is unmapped before releasing it 
Be sure that memory is unmapped before releasing it.

https://bugzilla.gnome.org/show_bug.cgi?id=700411
 2013-05-17 09:50:23 +02:00
Michael Olbrich
ced858fa65 dmabuf: set the initial memory size to the full size 
https://bugzilla.gnome.org/show_bug.cgi?id=700427
 2013-05-16 11:17:57 +02:00
Michael Olbrich
25dd73521d dmabuf: don't touch the GstMemory size 
mem.size is the content size and should not be touch.
Save the mmap size instead.

https://bugzilla.gnome.org/show_bug.cgi?id=699566
 2013-05-03 13:13:13 +02:00
Michael Olbrich
a4ba85b151 dmabuf: fix memory initialization 
Without this the shared memory is broken

https://bugzilla.gnome.org/show_bug.cgi?id=699565
 2013-05-03 13:11:14 +02:00
Michael Olbrich
72e32060b8 dmabuf: fix formating 2013-05-03 13:10:06 +02:00
Michael Olbrich
347898d516 dmabuf: handle mmap failure 
Otherwise gstreamer may segfault trying to access MAP_FAILED.

https://bugzilla.gnome.org/show_bug.cgi?id=699470
 2013-05-03 11:05:55 +02:00
Sebastian Dröge
c72aefb620 dmabuf: Use the fallback GstMemory copy function instead of our own 
dup() on a dmabuf only gives a new handle, not a copy, thus doesn't
do what copy() is supposed to do.
 2013-04-25 17:04:50 +02:00
Sebastian Dröge
5d499f1e14 dmabuf: Some code cleanup 2013-03-30 12:08:06 +01:00
Josep Torra
cd1f9ec992 dmabuf: Use correct print format specifier to fix a compiler warning 2013-03-10 18:05:28 +01:00
Sebastian Dröge
354d7ba302 dmabuf: The dmabuf allocator has a custom alloc function, mark it as such 2013-02-22 09:07:40 +01:00
Benjamin Gaignard
9a69f66ed1 dmabuf: Include config.h 2013-02-19 12:41:58 +01:00
Tim-Philipp Müller
1b1bb98256 allocators: add guard and minor clean-ups 2013-02-19 10:45:23 +00:00
Tim-Philipp Müller
4179fe42e0 allocators: add some since markers and misc other doc clean-ups 2013-02-19 09:40:31 +00:00
Sebastian Dröge
26ff0ced15 allocators: Integrate into the documentation 2013-02-19 10:05:38 +01:00
Sebastian Dröge
76400ef226 dmabuf: Improve documentation and annotations a bit 2013-02-19 10:05:38 +01:00
Benjamin Gaignard
ceecdb8e1d allocators: Add dmabuf-based GstMemory and GstAllocator 
Create new GstMemory and GstAllocator base on dmabuf.
Memory is not allocated/freed by userland but mapped/unmmaped
from a dmabuf file descriptor when requested.

This allocator is included in a new lib called libgstallocators

https://bugzilla.gnome.org/show_bug.cgi?id=693826
 2013-02-19 10:05:38 +01:00