Commit graph

52 commits

Author SHA1 Message Date
Thibault Saunier
099ac9faf2 docs: Convert gtkdoc comments to markdown
Modernizing the documentation, making it simpler to read an
modify and allowing us to possibly switch to hotdoc in the
future.
2017-03-10 18:19:17 -03:00
Julien Isorce
b68d9bbe43 gstfdmemory: log with GST_INFO instead of GST_ERROR on permission denied
For example mmap can fail with EACCES if the the fd has been open
with read only mode. And mapping the memory might be the only way
to check that. So no need to print out an error.

Ex: ioctl(dev, DRM_IOCTL_PRIME_HANDLE_TO_FD, flags & ~DRM_RDWR)

https://bugzilla.gnome.org/show_bug.cgi?id=765600
2016-11-21 21:22:47 +00:00
Nicolas Dufresne
a1a2a33315 dmabuf-allocator: Add missing padding in the class
This class was made subclassable, though for future growth of the code,
it's better if we have some room for add class members. Using the small
padding since this is unlikely.
2016-11-18 14:56:20 -05:00
Thibault Saunier
6917cb629e meson: Generate girs
https://bugzilla.gnome.org/show_bug.cgi?id=773944
2016-11-09 18:06:19 -03:00
Julien Isorce
f5eb366335 allocators: define GST_CAPS_FEATURE_MEMORY_DMABUF
Adds "memory:DMABuf" caps feature. Since 1.11 tag.
Useful when the the dma-buf buffer cannot be mapped to CPU for r/w requests.
Example: protected content or platform constraints.

https://bugzilla.gnome.org/show_bug.cgi?id=759358
2016-11-03 13:19:12 -04:00
Nicolas Dufresne
c37b1e8c56 dmabuf: Make the allocator sub-classable
This should allos for cleaner code when implement such allocator.

https://bugzilla.gnome.org/show_bug.cgi?id=768794
2016-11-03 13:19:12 -04:00
Nirbheek Chauhan
5c4f4ac1bd Add support for Meson as alternative/parallel build system
https://github.com/mesonbuild/meson

With contributions from:

Tim-Philipp Müller <tim@centricular.com>
Jussi Pakkanen <jpakkane@gmail.com> (original port)

Highlights of the features provided are:
* Faster builds on Linux (~40-50% faster)
* The ability to build with MSVC on Windows
* Generate Visual Studio project files
* Generate XCode project files
* Much faster builds on Windows (on-par with Linux)
* Seriously fast configure and building on embedded

... and many more. For more details see:

http://blog.nirbheek.in/2016/05/gstreamer-and-meson-new-hope.html
http://blog.nirbheek.in/2016/07/building-and-developing-gstreamer-using.html

Building with Meson should work on both Linux and Windows, but may
need a few more tweaks on other operating systems.
2016-08-20 11:09:51 +01:00
Wim Taymans
38622ee1e8 fdmemory: add flag to avoid close of the fd
Add GST_FD_MEMORY_FLAG_DONT_CLOSE to avoid closing the fd when the
memory is freed. When you can guarantee the lifetime of the fd is
longer than the memory, this can save a dup() call.
2016-08-19 09:27:01 +02:00
Tim-Philipp Müller
d52a74f32e g-i: pass compiler env to g-ir-scanner
It's what introspection.mak does as well. Should
fix spurious build failures on gnome-continuous.
2016-05-24 00:44:21 +01:00
Vivia Nikolaidou
a0cf3b4262 fdmemory, rtpbasedepayload: Ran gst-indent
https://bugzilla.gnome.org/show_bug.cgi?id=764948
2016-04-12 17:34:18 +03:00
Xavier Claessens
429860e51f base: Add g_autoptr() support to all types
https://bugzilla.gnome.org/show_bug.cgi?id=754464
2015-12-14 13:39:43 -05:00
Reynaldo H. Verdejo Pinochet
4ed7b0a0e6 Drop usage of deprecated g-ir-scanner --strip-prefix flag 2015-12-02 20:19:43 -08:00
William Manley
aae0dc37c9 allocators: add debug category for fd memory and allocator
Debugging can now be viewed by setting GST_DEBUG=fdmemory:9

https://bugzilla.gnome.org/show_bug.cgi?id=758744
2015-11-27 15:33:47 +00:00
Aurélien Zanelli
94e0279c44 fdmemory: remove 'allow-none' annotation in gst_fd_allocator_alloc() doc
gst_fd_allocator_alloc() ensure that passed allocator is a fd memory
allocator, so that we can't pass NULL allocator.

https://bugzilla.gnome.org/show_bug.cgi?id=754833
2015-09-23 10:01:41 -04:00
Aurélien Zanelli
4559feb69e dmabuf: remove 'allow-none' annotation in gst_dmabuf_allocator_alloc() doc
gst_dmabuf_allocator_alloc() ensure that passed allocator is a DMABuf
allocator, so that we can't pass NULL allocator.

https://bugzilla.gnome.org/show_bug.cgi?id=754833
2015-09-23 10:01:41 -04:00
George Kiagiadakis
7860060536 allocators: include gstfdmemory.h in the main library header, allocators.h 2015-08-29 21:38:52 +02:00
Stefan Sauer
b8a6aefa38 docs: add fdmemory to docs 2015-05-18 20:56:28 +02:00
Stefan Sauer
b364f5576d docs: a random set of trivial fixes for the library docs
All those where super straight forward from the warnings gtkdoc prints. It kind
of makes sense to apply them before the list of warnings is >100 and people
complain that gtkdoc is noisy.
2015-05-18 20:45:45 +02:00
Tim-Philipp Müller
c680e324bc Remove obsolete Android build cruft
This is not needed any longer.
2015-04-26 18:42:34 +01:00
Wim Taymans
7c059b4530 allocators: make GstFdAllocator non-abstract
Make the GstFdAllocator non-abstract because it is perfectly possible
to make memory from a generic fd. Mark the memory as simply "fd".
2015-04-17 09:31:40 +02:00
Edward Hervey
3eb35c77cc introspection: Don't use g-ir-scanner cache at compile time
It pollutes user directories and we don't need to cache it

https://bugzilla.gnome.org/show_bug.cgi?id=747095
2015-03-31 11:21:43 +02:00
Luis de Bethencourt
90d428a553 Revert "fdmemory: freed pointer will always be 0"
This reverts commit 7fbcefb753.
2015-03-24 10:46:44 +00:00
Luis de Bethencourt
7fbcefb753 fdmemory: freed pointer will always be 0 2015-03-24 10:20:05 +00:00
Wim Taymans
3205e90e83 fdmemory: make a base class for allocating fd-backed memory
Make a base class that can help with allocating fd-backed memory.
Make dmabuf extend from the base class.
We can now make methods to check if memory has an fd and get the fd for
all the different types of fd-backed memory.
2015-03-18 15:12:03 +01:00
Wim Taymans
e6cb520036 fdmemory: add flags to control behaviour
Add some flags to the GstFdMemory to control how memory is mapped and
unmapped.
2015-03-15 17:27:33 +01:00
Wim Taymans
4e6fba8604 fdmemory: add fd backed GstMemory to separate file
Make a separate file for the code to handle the fd backed memory.
This would make it possible later to add other allocators also using
fd backed memory.
2015-03-15 15:26:28 +01:00
William Manley
c97f10d7d8 docs: gst_dmabuf_allocator_alloc: Improve documentation
https://bugzilla.gnome.org/show_bug.cgi?id=739545
2014-11-03 09:02:46 -05:00
Nicolas Dufresne
f260baf23b dmabuf: Ensure _get_fd() works even for shared memory
Fixes regression introduced by:

commit b60888fd4b
Author: Michael Olbrich <m.olbrich@pengutronix.de>
Date:   Tue May 20 11:18:56 2014 +0200

    dmabuf: share the mapping with shared copies of the memory

https://bugzilla.gnome.org/show_bug.cgi?id=730441
2014-07-11 09:47:04 +02:00
Michael Olbrich
42623c995e dmabuf: fix checking mmap flags
A simple '&' is not sufficiant. With mmapping_flags == PROT_READ and
prot == PROT_READ|PROT_WRITE the check produces the wrong result.
Change the check to make sure that prot is a subset of mmapping_flags.

https://bugzilla.gnome.org/show_bug.cgi?id=730559
2014-06-04 10:01:27 -04:00
Michael Olbrich
b60888fd4b dmabuf: share the mapping with shared copies of the memory
With lots of shared memory instances (e.g. created by a RTP payloader) the
overhead of duplicating the file descriptor and creating extra mappings is
significant. To avoid this, the parent memory maps the whole region and the
shared copies just reuse the same mapping.

https://bugzilla.gnome.org/show_bug.cgi?id=730441
2014-05-20 09:42:02 -04:00
Sebastian Dröge
9f91b2769d dmabuf: Fix compilation if no mmap is available
Also #ifdef some more code paths that don't make sense without mmap.

https://bugzilla.gnome.org/show_bug.cgi?id=708372
2013-09-19 16:34:38 +02:00
Olivier Crête
d6187c00a6 dmabuf: Make it not a singleton
Makes it easier to track how many users there are

Also make it possible to create a dmabuf struct on systems without mmap,
it just won't be possible to map it.

https://bugzilla.gnome.org/show_bug.cgi?id=707793
2013-09-18 15:08:53 -04:00
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
Tim-Philipp Müller
320c992b94 allocators: header clean-up 2013-02-19 09:35:10 +00:00
Sebastian Dröge
26ff0ced15 allocators: Integrate into the documentation 2013-02-19 10:05:38 +01:00
Sebastian Dröge
37f0067946 allocators: Add single-include header 2013-02-19 10:05:38 +01:00