Fixes Ticket1694
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The IIR filter numerically diverges in such cases, this could easily be
fixed but would make the filter slower on some platforms

Fixes Ticket2246
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket2318
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Ticket1733
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  lavc: Deprecate the deinterlace functions in libavcodec
  h264: Integrate draw_horiz_band into ff_h264_draw_horiz_band

Conflicts:
	configure
	ffmpeg_opt.c
	libavcodec/avcodec.h
	libavcodec/h264.c
	libavcodec/imgconvert.c
	libavcodec/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '70762508':
  lavc: Prettify printing of codec tags containing non alphanumeric characters
  h264: Rename the jpeg_420 pixfmt list to match the common naming structure

Conflicts:
	libavcodec/h264.c
	libavcodec/utils.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

This makes the decoder independent of mpegvideo.

This copy of the draw_horiz_band code is simplified compared to
the "generic" mpegvideo one which still has a number of special
cases for different codecs.
Signed-off-by: Martin Storsjö <martin@martin.st>

Make av_get_codec_tag_string() show codec tag string characters in a more
intelligible ways. For example the ascii char "@" is used as a number, so
should be displayed like "[64]" rather than as a printable character.

Apart alphanumeric chars, only the characters ' ' and '.' are used
literally in codec tags, all the other characters represent numbers.

This also avoids relying on locale-dependent character class functions.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

This patch changes existing mathematical functions with faster
ones. Speeds up encoding more than 10%. Tested on x86 and
MIPS platforms.
Signed-off-by: Bojan Zivkovic <bojan@mips.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fix potential spurious substitution.

The escape API will be useful to perform escaping programmatically, which
is required when crafting argument strings, and will be used for context
printing as well.

This is based on the ffescape tool code, with a few extensions and fixes.

* qatar/master:
  avconv: Make sure the encoder exists before inspecting supported_list
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '5da51284':
  cavs: Add a dependency on h264chroma
  lavc: Split out ff_hwaccel_pixfmt_list_420[] over individual codecs

Conflicts:
	libavcodec/h263dec.c
	libavcodec/h264.c
	libavcodec/mpeg12.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '5a4e9fe8':
  avcodec/internal: Fix #if DECODE_AUDIO / ENCODE_AUDIO name mismatch
  shorten: use the unsigned type where needed
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '4c364eb2':
  shorten: report meaningful errors

Conflicts:
	libavcodec/shorten.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'a2ad554d':
  shorten: K&R formatting cosmetics

Conflicts:
	libavcodec/shorten.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'c10da30d':
  shorten: set invalid channels count to 0
  vorbisdec: check memory allocations
  h264: check for luma and chroma bit dept being equal

Conflicts:
	libavcodec/shorten.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

- check ret < 0
- remove excessive error log
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This fixes crashes when there is no encoder for the default codec of
selected format.
Signed-off-by: Martin Storsjö <martin@martin.st>

This fixes standalone building of this decoder.
Signed-off-by: Martin Storsjö <martin@martin.st>

Not all hwaccels implement all codecs, so using one single list for
multiple such codecs means some codecs will be represented in the list,
even though they don't actually handle that codec. Copying specific
lists in each codec fixes that.
Signed-off-by: Martin Storsjö <martin@martin.st>

These are widely used throughout libavcodec, nothing dsputil-specific.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

Address trac ticket #2319.

This fixes a regression caused by changes to the buffer initialization code.
Fixes valgrind warnings
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

* qatar/master:
  hwaccel: consistent name prefixes for start_frame/end_frame/decode_slice

Conflicts:
	libavcodec/vda_h264.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* cehoyos/master:
  Move the iconv test to the bottom of configure.
  Make 32bit zmbv colour-space opaque.
  Use uint8_t instead of uint16_t pointer in kega decoder.
  kgv1dec: Simplify kega decoding by using memcpy instead of loops
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Fixes out of array reads

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Someone should rename the variables, theres nothing random in there
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes division by zero

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes invalid memcpy and out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>