* qatar/master:
  swscale: properly inline bits/endianness in yuv2yuvX16inC().
(We didnt pull the bug)  swscale: fix clipping of 9/10bit YUV420P.
  Add av_clip_uintp2() function
(our patch / duplicate)  dfa: fix buffer overflow checks to avoid integer overflows.
(our patch / duplicate)  movenc: always write esds descriptor length using 4 bytes.
(our patch / duplicate)  ffmpeg: use parse_number_and_die() when it makes sense
(No thanks)  ffmpeg: get rid of the 'q' key schizofrenia
Merged-by: Michael Niedermayer <michaelni@gmx.at>

AVFrame: only set parameters from AVCodecContext in decode_video*() when no frame reordering is used.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes multithreading regression introduced in 64c06615
Fixes ticket197
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Fixes ticket #189.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This also allows us to drop the semaphore as our fifo is lock free.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

udp: add a thread into udp.c for receiving data into a circular buffer, this stops the problem of live decoding/encoding giving errors.

Also added a buf_size which is the number of TS packets that to be allocated for the circular buffer.

Also makes the bpp_tab non static const, as it needs to be changed in
this case.

Fix encoding of monow/monob images, fix trac issue #193.

Reduce code duplication, increase robustness.

Fix decoding of file Test_1bpp.tif, fix trac issue #171.

Helps debugging.

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

ipod shuffle doesn't support anything else.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Prefer parse_number_or_die() over atoi()/atol() parsing for the options:
-pass, -top, -vc, and -qscale.

Improve input validation.
Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

SIGINT for quitting should be enough for everybody.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master: (33 commits)
  rtpdec_qdm2: Don't try to parse data packet if no configuration is received
  ac3enc: put the counting of stereo rematrixing bits in the same place to make the code easier to understand.
  ac3enc: clean up count_frame_bits() and count_frame_bits_fixed()
  mpegvideo: make FF_DEBUG_DCT_COEFF output coeffs via av_log() instead of just via AVFrame.
  srtdec: make sure we don't write past the end of buffer
  wmaenc: improve channel count and bitrate error handling in encode_init()
  matroskaenc: make sure we don't produce invalid file with no codec ID
  matroskadec: check that pointers were initialized before accessing them
  lavf: fix function name in compute_pkt_fields2 av_dlog message
  lavf: fix av_find_best_stream when providing a wanted stream.
  lavf: fix av_find_best_stream when decoder_ret is given and using a related stream.
  ffmpeg: factorize quality calculation
  tiff: add support for SamplesPerPixel tag in tiff_decode_tag()
  tiff: Prefer enum TiffCompr over int for TiffContext.compr.
  mov: Support edit list atom version 1.
  configure: Enable libpostproc automatically if GPL code is enabled.
  Cosmetics: fix prototypes in oggdec
  oggdec: fix memleak with continuous streams.
  matroskaenc: add missing new line in av_log() call
  dnxhdenc: add AVClass in private context.
  ...

swscale changes largely rewritten by me or replaced by baptsites due to lots of bugs in ronalds code.
Above code is also just in case its not obvios to a large extended duplicates that where cherry picked
from ffmpeg.

Conflicts:
	configure
	ffmpeg.c
	libavformat/matroskaenc.c
	libavutil/pixfmt.h
	libswscale/ppc/swscale_template.c
	libswscale/swscale.c
	libswscale/swscale_template.c
	libswscale/utils.c
	libswscale/x86/swscale_template.c
	tests/fate/h264.mak
	tests/ref/lavfi/pixdesc_le
	tests/ref/lavfi/pixfmts_copy_le
	tests/ref/lavfi/pixfmts_null_le
	tests/ref/lavfi/pixfmts_scale_le
	tests/ref/lavfi/pixfmts_vflip_le
Merged-by: Michael Niedermayer <michaelni@gmx.at>

This allows more 3rd party applications to correctly read
the resulting wav files.

The later parsing of payload data depends on the configuration
being present. If it hasn't been configured properly yet,
parsing a data packet may lead to a crash.
Signed-off-by: Martin Storsjö <martin@martin.st>

Found-by: kierank
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

make the code easier to understand.

This allows the values to be used without changing C code and is closer to how
the other DEBUG flags work.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Aurelien Jacobs <aurel@gnuage.org>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Aurelien Jacobs <aurel@gnuage.org>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Aurelien Jacobs <aurel@gnuage.org>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

In the main loop, stream_number is incremented after checking the stream type,
so the search usually will not find the wanted stream.

This patch eliminates the useless stream_number variable and introduces a new
one, called real_stream_index to store the real stream index of the current
stream, no matter if we are looping through all the streams or only the streams
of a program.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Yet another fix for the code originally designed for use without related_stream.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>