As CONFIG_ values are always defined, they have to be checked via #if.

Also print port numbers for this protocol.
Signed-off-by: NMartin Storsjö <martin@martin.st>

This is mostly useful for encryption together with the RTP muxer,
but could also be set up as IO towards the peer with the SDP
demuxer with custom IO.
Signed-off-by: NMartin Storsjö <martin@martin.st>

This only takes care of decrypting incoming packets; the outgoing
RTCP packets are not encrypted. This is enough for some use cases,
and signalling crypto keys for use with outgoing RTCP packets
doesn't fit as simply into the API. If the SDP demuxer is hooked
up with custom IO, the return packets can be encrypted e.g. via the
SRTP protocol.

If the SRTP keys aren't available within the SDP, the decryption
can be handled externally as well (when using custom IO).
Signed-off-by: NMartin Storsjö <martin@martin.st>

This supports the AES_CM_128_HMAC_SHA1_80 and
AES_CM_128_HMAC_SHA1_32 cipher suites (from RFC 4568) at the
moment. The main missing features are replay protection (which can be
added later without changing the internal API), and the F8 and null
ciphers.
Signed-off-by: NMartin Storsjö <martin@martin.st>

This supports HMAC-MD5 and HMAC-SHA1 for now, other hashes are
simple to add.
Signed-off-by: NMartin Storsjö <martin@martin.st>

By default libav sets it to 3/4 while x264 sets it to 9/10.

CC: libav-stable@libav.org
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

rc_buffer_size is not set before.

Solve the initial the rate control underflow issue reported in
bug 222.

CC: libav-stable@libav.org
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

The function is a callback that is called by ff_gen_search with
a constant stream index.

Avoid a false positive on older gcc version.
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

These warnings have no false positives and point to serious bugs.

Signed-off-by: NDiego Biurrun <diego@biurrun.de>

It's been returning an error value since
bad446e2

Also check for the errors it returns.

Signed-off-by: NDiego Biurrun <diego@biurrun.de>

The floating point version of av_clip has to be used when
converting the quality level.
Signed-off-by: NMaximilian Seesslen <mes@seesslen.net>
Signed-off-by: NMartin Storsjö <martin@martin.st>

Pass the correct header size to ff_vorbis_comment()
Signed-off-by: NMartin Storsjö <martin@martin.st>

Clobbering these tables will temporarily clobber the template used
as a basis for other threads to start decoding from. If the other
decoding thread updates from the template right at that moment,
subsequent threads will get invalid (or, usually, none at all) mmco
tables. This leads to invalid reference lists and subsequent decode
failures.

Therefore, instead, decode the mmco tables only for the first slice in
a field or frame. For other slices, decode the bits and ensure they
are identical to the mmco tables in the first slice, but don't ever
clobber the context state. This prevents other threads from using a
clobbered/invalid template as starting point for decoding, and thus
fixes decoding in these cases.

This fixes occasional (~1%) failures of h264-conformance-mr1_bt_a with
frame-multithreading enabled.
Signed-off-by: NLuca Barbato <lu_zero@gentoo.org>

Support older libvpx versions.

This feature is experimental use at your risk

This makes the behaviour defined when they wrap around. The value
assigned to expected_prior was a uint32_t already.
Signed-off-by: NMartin Storsjö <martin@martin.st>

Without this, we'd signal a huge loss rate (due to unsigned
wraparound) if we had received one packet more than expected (that
is, one seq number sent twice). The code has a check for lost_interval
<= 0, but that doesn't do what was intended as long as the variable is
unsigned.
Signed-off-by: NMartin Storsjö <martin@martin.st>

By using a pointer-to-pointer, we avoid having to keep track
of the previous packet separately.
Signed-off-by: NMartin Storsjö <martin@martin.st>

The code below the comment does not at all relate to statistics,
and even if moved to the right place, the comment adds little
value.
Signed-off-by: NMartin Storsjö <martin@martin.st>

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

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

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

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

Fixes null pointer dereference later, since if this function failed,
a positive return value was returned to the caller.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: NMartin Storsjö <martin@martin.st>