This fixes the speed regression from 20626f53
and still checks sufficiently to prevent out of allocated memory accesses
due to the index

Before:
1823 decicycles in mpeg2_fast_decode_block_non_intra, 8388493 runs, 115 skips
After:
1808 decicycles in mpeg2_fast_decode_block_non_intra, 8388494 runs, 114 skips
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This fixes the speed regression from 20626f53
and still checks sufficiently to prevent out of allocated memory accesses
due to the index

Before:
1681 decicycles in mpeg2_fast_decode_block_intra, 4194238 runs, 66 skips
After:
1658 decicycles in mpeg2_fast_decode_block_intra, 4194248 runs, 56 skips
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '6d93307f':
  mpeg12: check scantable indices in all decode_block functions

Benchmarks

Before:
1878 decicycles in mpeg2_decode_block_non_intra, 8388487 runs, 121 skips
1700 decicycles in mpeg2_decode_block_intra, 4194239 runs, 65 skips
1808 decicycles in mpeg2_fast_decode_block_non_intra, 8388492 runs, 116 skips
1669 decicycles in mpeg2_fast_decode_block_intra, 4194248 runs, 56 skips
--
2056 decicycles in mpeg1_decode_block_inter, 65535 runs, 1 skips
2346 decicycles in mpeg1_decode_block_intra, 32768 runs, 0 skips
2011 decicycles in mpeg1_fast_decode_block_inter, 65533 runs, 3 skips
----------------
After:
1858 decicycles in mpeg2_decode_block_non_intra, 8388490 runs, 118 skips
1691 decicycles in mpeg2_decode_block_intra, 4194233 runs, 71 skips
1823 decicycles in mpeg2_fast_decode_block_non_intra, 8388493 runs, 115 skips
1681 decicycles in mpeg2_fast_decode_block_intra, 4194238 runs, 66 skips
--
2010 decicycles in mpeg1_decode_block_inter, 65535 runs, 1 skips
2322 decicycles in mpeg1_decode_block_intra, 32766 runs, 2 skips
1995 decicycles in mpeg1_fast_decode_block_inter, 65535 runs, 1 skips

All benchmarks are the best scores of several runs
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Without this a developer would have to add a include every time he
wants to benchmark some code, this is a moderate inconvenience.

This reverts the specific hunk from fb0c9d41Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'fb0c9d41':
  avutil: remove timer.h include from internal.h

Conflicts:
	libavcodec/ffv1dec.c
	libavutil/internal.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

Add checks to the fast functions used with CODEC_FLAGS2_FAST and move
the check for all other functions to before the invalid memory is
accessed. Fixes https://trac.videolan.org/vlc/ticket/9713 with
CODEC_FLAGS2_FAST.

CC: libav-stable@libav.org

Added libavutil/timer.h include to all files with {START,STOP}_TIMER.

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

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

* 'scale-filter-factor' of https://github.com/lkiesow/FFmpeg:
  Documentation for scale filter factor
  Documentation for scale filter factor
  Fixed factor for scale filter
  Factors for scale filter
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Setting fps = 1/timebase is not correct
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This change makes it possible to transform the glyph or get its border before
turning it into a bitmap.
Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* rbultje/vp9-simd:
  vp9: fix memory corruption if header decoding fails after size change.
  vp9/x86: use explicit register for relative stack references.
  vp9/x86: iwht4x4 (lossless) mmx.
  vp9/x86: 4x4 iadst SIMD (ssse3) variants.
  vp9/x86: 8x8 iadst SIMD (ssse3/avx) variants.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  dxtory: compressed RGB555/RGB565 decoding support

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

* commit '0e1ad2f5':
  dxtory: add more compressed and uncompressed modes

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

Before this patch, we explicitly modify rsp, which isn't necessarily
universally acceptable, since the space under the stack pointer might
be modified in things like signal handlers. Therefore, use an explicit
register to hold the stack pointer relative to the bottom of the stack
(i.e. rsp). This will also clear out valgrind errors about the use of
uninitialized data that started occurring after the idct16x16/ssse3
optimizations were first merged.

Cycle measurements for intra itxfm_4x4_add on ped1080p.webm:
idct_idct:    66 -> 67 cycles (noise measurement)
idct_iadst:  199 -> 79 cycles
iadst_idct:  165 -> 70 cycles
iadst_iadst: 183 -> 82 cycles

Cycle measurements for intra itxfm_8x8_add on ped1080p.webm:
idct_idct:   133 -> 135 cycles (noise measurement)
idct_iadst:  900 -> 241 cycles
iadst_idct:  864 -> 215 cycles
iadst_iadst: 973 -> 310 cycles

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

Fixed a memory leak in dvbsubenc.c: sub->num_rects was reduced without freeing the associated rects.
Signed-off-by: Wim Vander Schelden <lists@fixnum.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

The muxer will write at least the number of bytes requested and possibly
up to 3 bytes more.  This is because the muxer writes 32-bit integers
and the format requires 4-byte alignment anyway.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

As with the change to flacenc this allows the user to control the amount
of padding they want added to the file.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Allows a user to control the amount, if any, of padding they want added
to the file.  If set to zero the block will not be written at all.  If
set to some positive number four more bytes will be added to the file
due to the small header required for the block.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This field is used to store the number of bytes that should be written
as padding to a metadata header of a file.  For example:
 - The FLAC format's METADATA_BLOCK_PADDING [1]
 - The ID3v2 tag format's padding           [2]

[1] http://xiph.org/flac/format.html#metadata_block_padding
[2] http://id3.org/id3v2.3.0#ID3v2_overviewSigned-off-by: Michael Niedermayer <michaelni@gmx.at>

* Using extradata by TS demuxer to store values from PMT
* Support of multiple languages in one DVB teletext stream:
  comma separated language codes in metadata "language" field
Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* Using extradata by TS muxer to correctly restore PMT table
* PES_header_data_length should be always 0x24 for DVB teletext,
  according to DVB standard
Reviewed-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>