rtp: Make sure priv_data is set before reading it

This fixes crashes with muxing H263 into RTSP.

CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
wmv2: Propagate the wmv2 idct permutation type to the dsputils context

This fixes encoding where the idct setting originally was set to
FF_IDCT_AUTO and dsputil chose a default idct with a non-null
permutation - even if the permutation tables were updated,
dct_quantize in x86/mpegvideoenc_template.c also checked the
value of this type variable.

Signed-off-by: Martin Storsjö <martin@martin.st>
rtp: Make sure the output format pointer is set

Not sure if this actually happens, but we do the same check when
checking payload_type further above in the function, so it might
be needed.

Signed-off-by: Martin Storsjö <martin@martin.st>
rtpenc_chain: Use the original AVFormatContext for getting payload type

In ff_rtp_get_payload_type, the AVFormatContext is used for checking
whether the payload_type or rtpflags options are set. In rtpenc_chain,
the rtpctx struct is a newly initialized struct where no options have
been set yet, so no options can be fetched from there.

All muxers that internally chain rtp muxers have the "rtpflags" field
that allows passing such options on (which is how this worked before
8034130e06), so this works just as intended.

This makes it possible to produce H263 in RFC2190 format with chained
RTP muxers.

CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
openbsd: configure: Stop enabling PIC by default

Previously PIC was enabled as a magic workaround for binaries that
built fine, but failed to function at all.  This problem no longer
exists, possibly since the introduction of symbol versioning.
doc: fix dependencies in pod generation

The script can and will change.
dsputil: Separate h264 qpel

The sh4 optimizations are removed, because the code is
100% identical to the C code, so it is unlikely to
provide any real practical benefit.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
arm: h264qpel: use neon h264 qpel functions only if supported
h264: copy h264qpel dsp context to slice thread copies
x86: h264qpel: add cpu flag checks for init function

The code was copied from per cpu extension init function so the checks
for supported extensions was overlooked.
build: Make the H.264 parser select h264qpel

It is required for building the shared H.264 code.
avstring: K&R formatting cosmetics

Signed-off-by: Diego Biurrun <diego@biurrun.de>
arm: Add mathops.h to ARCH_HEADERS list

It is an arch-specific header not suitable for standalone compilation.
h264: Allow discarding the cropping information from SPS

Some 3D systems overload the meaning of the field for other purposes.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
lavu: Add av_strnstr()

This is a length limited version of strstr()

Signed-off-by: Vladimir Pantelic <vladoman@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
avfilter: allow setpts filter to use wallclock time for calculations

Signed-off-by: Vladimir Pantelic <vladoman@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
doc: support multitable in texi2pod
dict: add av_dict_parse_string()

Can be used to set multiple key/value pairs from a string.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
libx264: introduce -x264-params private option

It is a shortcut to set all the params using x264_param_parse,
makes simpler importing settings from other software using x264.
doc: document libx264 options and mappings