Bump the API version requirement to 6.

Based on a patch by Agatha Hu <ahu@nvidia.com>.

Print them as a subsection of the external library section, in line with
what is done for the help text in the previous commit.

Group them in a subsection of the external library section. That should
make them easier to find and understand how they fit in the scheme of
things.

Also, rewrite the description text in a similar way as in the previous
commit.

Add a more accurate description of what the switches actually do (i.e.
allow using the given library, not enabling the corresponding
codecs etc.).

Replace the library descriptions, in many cases boilerplate text without
useful information, with a short summary of what the library does.

This reverts commit 33ac77e8.

It qualifies as a system library.
Signed-off-by: NAnton Khirnov <anton@khirnov.net>

This uses a new MMAL feature, which limits the number of extra frames
that can be buffered within the decoder. VIDEO_MAX_NUM_CALLBACKS can
be defined as positive or negative number. Positive numbers are
absolute, and can lead to deadlocks if the user underestimates the
number of required buffers. Negative numbers specify the number of extra
buffers, e.g. -1 means no extra buffer, (-1-N) means N extra buffers.

Set a gratuitous default of -11 (N=10). This is much lower than the
firmware default, which appears to be 96.

This is backwards compatible, but needs a symbol only present in newer
firmware headers. (It's an enum item, so it requires a check in
configure.)
Signed-off-by: NAnton Khirnov <anton@khirnov.net>

The mmal decoders do not depend on the software decoders.
Signed-off-by: NAnton Khirnov <anton@khirnov.net>

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

Register mmaldec as mpeg2 decoder. Supporting mpeg2 in mmaldec is just a
matter of setting the correct MMAL_ENCODING on the input port. To ease the
addition of further supported mmal codecs a macro is introduced to generate
the decoder and decoder class structs.
Signed-off-by: NJulian Scheel <julian@jusst.de>
Signed-off-by: Nwm4 <nfxjfg@googlemail.com>
Signed-off-by: NAnton Khirnov <anton@khirnov.net>

The raspberry pi uses the alternative API/ABI for OMX; this makes
such builds incompatible with all the normal OpenMAX implementations.
Since this can't easily be detected at configure time (one can
build for raspberry pi's OMX just fine using the generic, pristine
Khronos OpenMAX IL headers, no need for their own extensions),
require a separate configure switch for it instead.

The broadcom host library can't be unloaded once loaded and started;
the deinit function that it provides is a no-op, and after started,
it has got background threads running, so dlclosing it makes it
crash.
Signed-off-by: NMartin Storsjö <martin@martin.st>

Signed-off-by: NMartin Storsjö <martin@martin.st>

Previously, with JACK installed, the configure script would enable the
JACK indev; this broke on OS X due to an incomplete pthreads
implementation. Add some simple macros to map libdispatch to pthreads
on OS X.
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

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

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

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

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

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

Helps in decoupling this code from mpegvideo.

Use it instead of the embedded mpegvideo one. Update init function
signature to load it directly from the callers.

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

This allows expressing the SRTP test code dependencies more clearly.

The intrax8 decoding process does not imply any kind of error
resilience, and the only call present is more related to how mpegvideo
works rather than anything else.

Therefore have the parent decoders carry out er when actually needed.

Deprecate the current bitstream filtering API.

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

Instead of a linked list constructed at av_register_all(), store them
in a constant array of pointers.

Since no registration is necessary now, this removes some global state
from lavf. This will also allow the urlprotocol layer caller to limit
the available protocols in a simple and flexible way in the following
commits.

This reverts commits 2edc7187, a2bb771a, 21c750f2, 8e7bea6d.