Help readability.

Fixes Ticket618

Based on code by teratorn
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master: (23 commits)
  x86inc: use sse versions of common macros instead of sse2 when applicable
  doc/APIchanges: add missing dates and hashes
  lavf: don't return from void av_update_cur_dts()
  Changelog: add more entries.
  Changelog: update ffmpeg/avconv incompatibility list.
  avconv: remove some redundant temporary variables.
  avconv: fix broken indentation
  avconv: move copy_initial_nonkeyframes to the options context.
  avconv: use file:stream instead of file.stream in log messages.
  doc/avconv: elaborate on basic functionality.
  doc/avconv: -sample_fmts, not -help sample_fmts prints the sample formats
  openssl: Only use CRYPTO_set_id_callback on OpenSSL < 1.0.0
  Call avformat_network_init/deinit in the programs
  Remove leftover includes of strings.h
  avutil: Don't allow using strcasecmp/strncasecmp
  Replace all usage of strcasecmp/strncasecmp
  avstring: Add locale independent implementations of strcasecmp/strncasecmp
  avstring: Add locale independent implementations of toupper/tolower
  cosmetics: insert some spaces in explicit enum value assignments
  move 8SVX audio codecs to the audio codec list part on the next bump
  ...

Conflicts:
	avprobe.c
	doc/APIchanges
	ffplay.c
	ffserver.c
	libavcodec/avcodec.h
	libavdevice/bktr.c
	libavdevice/v4l.c
	libavdevice/v4l2.c
	libavformat/matroskaenc.c
	libavformat/wtv.c
	libavutil/avstring.c
	libavutil/avstring.h
	libavutil/avutil.h
	libswscale/x86/swscale_template.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

This is the logical consequence of commit ab539d9e:
5.X(back) is more common than 5.X(side).
Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Also document it.

Since 1.0.0, this function is deprecated. A new function,
CRYPTO_THREADID_set_callback is available, but if not set at all,
it uses the address of errno as thread id, which should be
sufficient for most systems.

On windows, it never was necessary to use this function even
before 1.0.0, it used the right win32 API function for this
by default.
Signed-off-by: Martin Storsjö <martin@martin.st>

Calling the init function will become mandatory at some later
point. By calling it, more heavy network init (such as SSL/TLS
library init) can be done once at startup, instead of implicitly
when used (which could lead to it being done a number of times).
Signed-off-by: Martin Storsjö <martin@martin.st>

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

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

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

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

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

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

All current usages of it are incompatible with localization.
For example strcasecmp("i", "I") != 0 is possible, but would
break many of the places where it is used.

Instead use our own implementations that always treat the data
as ASCII.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

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

p cannot be calculated before av_dup_packet since that one
might change avpkt->data, causing invalid reads and a
non-working range check.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

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

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

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

We keep INIT_AVX (for backwards compatibility). 3arg AVX ops with
a memory arg can only have it in src2, whereas SSE emulation of
3arg prefers to have it in src1 (i.e. the mov). So, if the op is
symmetric and the wrong one is memory, swap them.

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

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

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

* qatar/master:
  http: Remove the custom function for disabling chunked posts
  rtsp: Disable chunked http post through AVOptions
  movdec: Set frame_size for AMR
  h264_weight: remove duplication functions.
  swscale: align vertical filtersize by 2 on x86.
  libavfilter: reindent.
  matroskadec: empty blocks are in fact valid.
  avfilter: don't abort() on zero-size allocations.
  h264: improve calculation of codec delay.
  movenc: Set a correct packet size for AMR-NB mode 15, "no data"
  avformat: Add functions for doing global network initialization
  avformat: Add the https protocol
  avformat: Add the tls protocol, using OpenSSL or gnutls
  avformat: Initialize gnutls in ff_tls_init()
  w32threads: Wrap the mutex functions in inline functions returning int
  configure: Allow linking to the gnutls library
  avformat: Add ff_tls_init()/deinit() that initialize OpenSSL
  configure: Allow linking to openssl
  avcodec: Allow locking and unlocking an avformat specific mutex
  avformat: Split out functions from network.h to a new file, network.c

Conflicts:
	Changelog
	configure
	doc/APIchanges
	libavcodec/internal.h
	libavcodec/version.h
	libavfilter/formats.c
	libavformat/matroskadec.c
	libavformat/mov.c
	libavformat/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

avctx->width/height remain right/bottom cropped as previous behaviour.

Hardware decoders need to know the uncropped data to allocate surfaces
of correct height. Some hardware is picky and fails to decoder properly
if a surface larger than needed is used during decode, so just aligning
up is not enough.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

When constructing a channel layout string from individual channel names,
+ is a more practical separator than |, because it is usually not a shell
special character.
Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>