Adding _POSIX_C_SOURCE to CPPFLAGS globally produces all sorts of problems
since it causes certain system functions to be hidden on some (BSD) systems.
The solution is to only add the flag on systems that really require it, i.e.
glibc-based ones.

This change makes BSD systems compile out-of-the-box without the need for
adding specific flags manually.  It also allows dropping a number of flags
set manually on a file-per-file basis, but were only present to work around
breakage introduced by the presence of _POSIX_C_SOURCE.

Also add _XOPEN_SOURCE to CPPFLAGS for glibc systems.  We use XSI extensions
in several places already, so it is preferable to define it globally instead
of littering source files with individual #defines only needed for glibc.

This hopefully fixes build failures on Dragonfly BSD.
Signed-off-by: Martin Storsjö <martin@martin.st>

They've accumulated enough new APIs and corresponding deprecated cruft.

This breaks API and ABI.

Since the code already supports both little- and big-endian
audio for recording, do not fail just because the endianness is not
what we expect.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Mans Rullgard <mans@mansr.com>

also update the multiple inclusion guards in config.h|mak

It is pretty hopeless that other considerable projects will adopt
libavutil alone in other projects. Projects that need small footprint
are better off with more specialized libraries such as gnulib or rather
just copy the necessary parts that they need. With this in mind, nobody
is helped by having libavutil and libavcore split. In order to ease
maintenance inside and around FFmpeg and to reduce confusion where to
put common code, avcore's functionality is merged (back) to avutil.
Signed-off-by: Reinhard Tartler <siretart@tauware.de>

This also lists the objects from those two libraries as internal (by adding
the ff_ prefix) so that they can then be hidden via linker scripts.

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>

Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>

Originally committed as revision 26225 to svn://svn.ffmpeg.org/ffmpeg/trunk

timebase value already set in the driver, and set it back in the codec
stream, rather than leaving the invalid value of 0/0.

In particular, fix ffmpeg grabbing timestamps when the timebase value
is not set through the CLI.

Originally committed as revision 26224 to svn://svn.ffmpeg.org/ffmpeg/trunk

ioctl failure in mmap_release_buffer().

Originally committed as revision 26214 to svn://svn.ffmpeg.org/ffmpeg/trunk

This new version:
1.  Works on 24-bit and 32-bit input, not just 32-bit.
2.  Doesn't try to run on 16-bit or 8-bit, instead of outright crashing.
3.  Does proper alpha-blending, so cursor shadows look correct.
4.  Doesn't swap R and B.

Mostly fixes issue 1997.
Fixes issue 2056.

Originally committed as revision 25690 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25552 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by José Miguel Gonçalves (jose DOT goncalves AT inov DOT pt)

Originally committed as revision 25159 to svn://svn.ffmpeg.org/ffmpeg/trunk

and more readable.

Originally committed as revision 25108 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25106 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25058 to svn://svn.ffmpeg.org/ffmpeg/trunk

Help further refactoring.

Originally committed as revision 24814 to svn://svn.ffmpeg.org/ffmpeg/trunk

video4linux2 devices. This is used by Sensoray Model 2253 cards.
Patch by Pete Eberlein (pete AT sensoray DOT com)

Originally committed as revision 24759 to svn://svn.ffmpeg.org/ffmpeg/trunk

av_check_image_size() instead.

Originally committed as revision 24711 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23976 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23691 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23568 to svn://svn.ffmpeg.org/ffmpeg/trunk

of failure return the stored value rather than the current errno,
which may be overwritten by a following call to close().

Originally committed as revision 23001 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22989 to svn://svn.ffmpeg.org/ffmpeg/trunk

function. Avoids the following warning:
libavdevice/v4l2.c: In function ‘v4l2_read_header’:
libavdevice/v4l2.c:586: warning: ‘codec_id’ may be used uninitialized in this function

Originally committed as revision 22986 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22982 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22980 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22979 to svn://svn.ffmpeg.org/ffmpeg/trunk

Move check on frame size after the device is opened and after
device_try_init() is attempted. If the provided size value is 0x0,
perform a VIDIOC_G_FMT ioctl() on the device, which sets size to the
current settings.

Originally committed as revision 22971 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22966 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22963 to svn://svn.ffmpeg.org/ffmpeg/trunk

Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.

Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk