Fixes Ticket267

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

This fixes a potential double free.

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

This reverts commit 7d89f7cbf3.

Revert at authors request, and its buggy missing &

This reverts commit b9c6c7cb25.
It appears this caused the .o files to be deletec under some circumstances.

* qatar/master: (28 commits)
  Remove some non-compiling debug messages.
  ffplay: Fix non-compiling debug printf and replace it by av_dlog.
  H264: x86 predict init cosmetics.
  ac3enc: Fix linking of AC-3 encoder without the E-AC-3 encoder.
  Move E-AC-3 encoder functions to a separate eac3enc.c file.
  ac3enc: remove convenience macro, #define DEBUG
  ac3enc: remove unused #define
  vc1: re-initialize tables after width/height change.
  APIchanges: fill-in git commit hash for av_get_bytes_per_sample() addition
  samplefmt: add av_get_bytes_per_sample()
  iirfilter: fix biquad filter coefficients.
  swscale: remove duplicate conversion routine in swScale().
  swscale: add yuv2planar/packed function typedefs.
  swscale: integrate yuv2nv12X_C into yuv2yuvX() function pointers.
  swscale: reindent x86 init code.
  swscale: extract SWS_FULL_CHR_H_INT conditional into init code.
  swscale: cosmetics.
  swscale: remove alp/chr/lumSrcOffset.
  swscale: un-special-case yuv2yuvX16_c().
  shorten: Remove stray DEBUG #define and corresponding av_dlog statement.
  ...

Conflicts:
	doc/APIchanges
	libavcodec/ac3enc.c
	libavutil/avutil.h
	libavutil/samplefmt.c
	libswscale/swscale.c
	libswscale/swscale_internal.h
	libswscale/x86/swscale_template.c

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

The options -loglevel LEVEL -debug FLAGS can be used for achieving the
same objectives, with a finer level of control.

Use -vismv 1 instead. Simplify.

Change indentation and whitespace; also move HAVE_YASM blocks.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

The AC-3 encoder unconditionally references some symbols from the E-AC-3
encoder; make those references conditional to fix linking.

read_sequence_header can change width/height; therefore, re-initialize
all tables if width/height changed

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

Deprecate av_get_bits_per_sample_fmt(), which was a misnamed function.

For the moment we don't have sample formats with a non-integer number
of bytes, in that case we may need to create a new
av_get_bits_per_sample() function. In the meanwhile we prefer to adopt
this variant, since avoids divisions by 8 all over the place.

Fixes Ticket269

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

The current filter implementation should only have the cx coefficients
divided by gain in order to give the correct output scale.

They are hacks added to reuse the same scaling function for
different formats and they may cause problems when SIMD
implementation of the same functions are used along with pure
C functions.

Make yuv2yuvX16_c a function pointer for yuv2yuvX(), so that the
function pointer becomes bitdepth-independent.

It was errouneously changed to "NTSC" by the recent merge commit.

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

The option is disabled by default, so enabling it should be documented.

Use av_get_pix_fmt_name() rather than access
av_pix_fmt_descriptors. Improve readability.

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

* qatar/master:
  build: remove empty $(OBJS) target
  build: make rule for linking ff* apply only to these targets
  build: rearrange some lines in a more logical way
  s302m: fix resampling for 16 and 24bits.
  ARM: remove MUL64 and MAC64 inline asm
  build: clean up .PHONY lists
  build: move all (un)install* target aliases to toplevel Makefile
  flvenc: propagate error properly
  build: remove stale dependency
  build: do not add CFLAGS-yes to CFLAGS
  utils.c: fix crash with threading enabled.
  configure: simplify source_path setup
  configure: remove --source-path option
  lavf: deprecate AVFormatParameters.time_base.
  img2: add framerate private option.
  img2: add video_size private option.
  img2: add pixel_format private option.
  tty: add framerate private option.

Conflicts:
	Makefile
	configure

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

Fixes Ticket164

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

This patch is based on a patch by John Stebbins

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

This target was added to prevent some files being deleted
by make when using chains of implicit rules.  This is no
longer required.

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