remove iwmmxt optimizations

The were broken since August of 2010 without anyone noticing until
three weeks ago. Nobody cares about it anymore and hopefully Marvell
will support NEON like in the PXA978 from now on.
Revert "h264: clear trailing bits in partially parsed NAL units"

This reverts commit 729ebb2f185244b0ff06d48edbbbbb02ceb4ed4e.

There was an off-by-one error in the bit mask calculation clearing
actually the last valid bit and causing
http://bugzilla.libav.org/show_bug.cgi?id=227

The broken sample (Mr_MrsSmith-h264_aac.mp4) the commit was fixing
does not work after correcting the off-by-one error.

CC: libav-stable@libav.org
pcm-mpeg: convert to bytestream2 API

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
h264: improve parsing of broken AVC SPS

Parsing the entire NAL as SPS fixes decoding of some AVC bitstreams
with broken escaping. Since the size of the NAL unit is known and
checked against the buffer end we can parse it entirely without buffer
overreads.

Fixes playback of
http://streams.videolan.org/streams/mp4/Mr_MrsSmith-h264_aac.mp4

Signed-off-by: Janne Grunau <janne-libav@jannau.net>
anm decoder: move buffer allocation from decode_init() to decode_frame()

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
dfa: convert to bytestream2 API

Protects from overreads.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
FATE: add shorthand to wavpack test

Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
dxva2_vc1: fix decoding of BI frames

Signed-off-by: Anton Khirnov <anton@khirnov.net>
dxva2_vc1: pass the overlap flag to the decoder

Signed-off-by: Anton Khirnov <anton@khirnov.net>
httpauth: Parse the stale field in digest auth

Signed-off-by: Martin Storsjö <martin@martin.st>
rtsp: Retry authentication if failed due to being stale

Signed-off-by: Martin Storsjö <martin@martin.st>
rtsp: Resend new keepalive commands if they used stale auth

These commands are sent asynchronously, not waiting for the reply.
This reply is parsed later by ff_rtsp_tcp_read_packet or
udp_read_packet. If the reply indicates that we used stale
authentication and need to use a new nonce, resend a new keepalive
command immediately.

This is the only request sent asynchronously, so currently there's
no other command that needs to be resent in the same way.

Signed-off-by: Martin Storsjö <martin@martin.st>
http: Retry auth if it failed due to being stale

Allow up to 4 retries for normal requests, where both the
proxy and the target server might need to authenticate.

Signed-off-by: Martin Storsjö <martin@martin.st>
http: Clear the auth state on redirects

Currently we only try continuing with the same auth mechanism
as the initial request.

Signed-off-by: Martin Storsjö <martin@martin.st>
libx264: fix help text for slice-max-size option.

CC: libav-stable@libav.org
libx264: add 'stats' private option for setting 2pass stats filename.

x264 always opens the file itself with fopen, so we cannot use the
standard lavc stats mechanism.

CC: libav-stable@libav.org
avconv: link '-passlogfile' option to libx264 'stats' AVOption.

Fixes bug 204.

CC: libav-stable@libav.org
avconv: reindent

CC: libav-stable@libav.org