They share a great deal of common structure; only a few minor
bits in the headers differ.

This also fixes an off-by-one in sending of the last fragment
of large HEVC nals (where it previously sent len+2 bytes, even
if it should have been len+RTP_HEVC_HEADERS_SIZE aka len+3).

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

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

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

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

This is the common style for such comments.

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

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

This can reduce the amount of boilerplate in simple depacketizers.

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

This avoids implementing a full function just to set this one
field.

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

This allows getting rid of quite a bit of boilerplate in depacketizers.

The default value (initializing need_parsing to 0, aka
AVSTREAM_PARSE_NONE) is the same as it is initialized to by default
in AVStream.

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

This makes it match the other depacketizers.

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

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

This avoids allocating space for a too large buffer for all the
name strings.

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

Nothing in this file use any network functions.

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

There's no point in adding padding in the allocation of a depacketizer
specific context struct.

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

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

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

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

Map this to AV_CODEC_ID_TEXT.

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

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

The codec is referred to as DCA in other parts of libav.

When a client behind a NAT issues a pause command, and stay paused for a
long time, the router may stop the RTP/RTCP port redirection. Resend the
hole punching packets before each PLAY command to cause the router to
restart the port redirection in that case.

Move the existing code for sending the packets from the SETUP phase
to the PLAY phase.

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

Bug-Id: CID 1257500
CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Bug-Id: CID 1257501
CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Only the first aggregation unit has 2 bytes (DONL) prepended, if
such a field is in use.

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

Based on work by Kostya Shishkov <kostya.shishkov@gmail.com>.

CC: libav-stable@libav.org
Bug-Id: 795
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Since not all systems need the libraw1394 dependency, let pkg-config
provide the list of libraries actually needed.

The libdc1394-2.pc file has been included since version 2 (2008-01-05),
so it should be safe to use.

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

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

(tested with live555 RTSP server)

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

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

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

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

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

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

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

When receiving an RTCP packet, the difference between the last RTCP
timestamp and the base timestamp may be negative. As these timestamps
are of the uint32_t type, the result becomes a large integer. Cast
the difference to int32_t to avoid this issue.

The result of this issue is very large start times for RTSP
streams, and difficulty to restart correctly after a pause.

Signed-off-by: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Signed-off-by: Martin Storsjö <martin@martin.st>

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

modelled after aarch64 code

on Cortex-A8, s16 and s32 code is about 2x faster,
float code about 7x faster

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Martin Storsjö <martin@martin.st>

With significant changes by Martin Storsjö, to use the shared
function instead of reimplementing it.

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

For some reason, clang didn't warn about this prior to using the
shared function.

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

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

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

This fixes builds with -DDEBUG after f0a874799.

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

Add a parameter for skipping a number of bytes at the start of each nal.

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

Don't write directly into an AVCodecContext, write into given
pointers.

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

We already have a dependency on awk and bc is sometimes not found in the
base system.

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