Fixes compiler warning about incompatible types in sws_scale call.

This is required after sws_format_name() was replaced by
av_get_pix_fmt(), which is declared in libavutil/pixdesc.h.

This makes the generated Doxygen doc link to the replacement
av_dump_format() function.

The yuv4mpeg muxer will crash otherwise.

Store AVPicture in AVPacket as required by AVFMT_RAWPICTURE formats.

Fix trac issue #251.

Rename:
api-example.c    -> encoding-example.c
output-example.c -> muxing-example.c

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

* qatar/master:
  vf_drawtext: Replace FFmpeg by Libav in license boilerplate.
  mpegaudiodec: remove unusued code and variables
  improved 'edts' atom writing support
  mpegaudio: clean up compute_antialias() definition
  vp8: fix segmentation race during frame-threading.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Documents the mapping from FFmpeg options to libvpx.

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

The 'edts' write function can now generate an initial empty edit resulting in a track-specific presentation delay.
This is automatically calculated and inserted for any track where the initial DTS != 0.
Added support for long (version==1) timecodes.

This merges the float and fixed-point versions of the compute_antialias
function, fixes invalid array indexing, and eliminates a dead copy of
csa_table.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Fixes occasional failure of make fate-vp8-test-vector-010 with
frame-multithreading enabled.

    * ffmpeg-mt/master:
      Update todo
      The maximum buffer size needs to be 33, not 32
merged-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  swscale: Remove unused variable.
  ARM: simplify inline asm with 64-bit operands
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

Fixes compilation on PPC with Altivec enabled.

Since we want to break the loop the 'if (data_ofs < 0)' block is moved after the loop.
This fixes ticket #250.

Improve consistency.

Replace opt_{audio,video,subtitle,data}_codec() with a single
opt_codec() function.

Simplify/clarify the code logic and error reporting.

Use av_get_pix_fmt_name() instead.

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

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

This code is redundant and conflicts with lucas reimplementation of it.

This reverts commit a2f5e14a.

* qatar/master:
  ARM: enable UAL syntax in asm.S
  v4l2: don't leak video standard string on error.
  swscale: Remove disabled code.
  avfilter: Surround function only used in debug mode by appropriate #ifdef.
  vf_crop: Replace #ifdef DEBUG + av_log() by av_dlog().
  build: remove BUILD_ROOT variable
  vp8: use av_clip_uintp2() where possible
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

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

This enables UAL syntax for all asm files instead of only those
which happen to be incompatible with the old, deprecated syntax.
Signed-off-by: Mans Rullgard <mans@mansr.com>