lavd/v4l2: use avcodec_find_decoder in list_formats

Because libavdevice/v4l2 is a demuxer, it makes sense to look for
decoders instead of encoders when listing the formats supported by the
device.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

mjpegdec: rgb mode is specific for ljpeg, disable it for others.

Fixes null pointer dereference

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

aacdec: check init_get_bits return

Also fixes an integer overflow

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

mjpegdec: fix memcmp size for *_count

Fixes assertion failure

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

Write forced track flag to matroska files.

Based on a patch by Daniel Pielmeier, daniel pielmeier gmail
Fixes a part of ticket #1815.

Fix some avi rawvideo formats on big endian.

Fixes ticket #2196.

avpriv_mpeg4audio_get_config: check init_get_bits() return code.

Fixes null pointer dereference

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

aacdec: check channel count

Prevent out of array accesses

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

lavc/dnxhdenc: print valid profiles when codec parameters are invalid

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

lavc/dnxhddata: add frame_rates field to cid table

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

lavd/v4l2: select input immediately after opening the device

After opening the device, the first thing we should do is selecting the
input. This is because the image formats (VIDIOC_ENUM_FMT ioctl) and the
standards (VIDIOC_ENUMSTD ioctl) supported may depend on the selected
input ([1] and [2]).

[1] http://linuxtv.org/downloads/v4l-dvb-apis/vidioc-enum-fmt.html
[2] http://linuxtv.org/downloads/v4l-dvb-apis/vidioc-enumstd.html

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

lavd/v4l2: sanitize logic of device_try_init(), so that it properly signal errors

Make device_try_init() return an error value, and allow to properly
report errors which are not due to a wrong pixel/codec configuration.

In particular, report intelligible feedback in case of busy device.

ffmpeg: remove -crop* and -pad* options

The options have been deprecated and are non-operational since more than
two years.

ffmpeg: implement -force_key_frames expression evalution

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  arm: vp8: Fix the plain-armv6 version of vp8_luma_dc_wht

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

Merge commit '96753bd00d6d4046db6818c0aadc21bf2a11d77b'

* commit '96753bd00d6d4046db6818c0aadc21bf2a11d77b':
  dsputil: x86: Correct the number of registers used in put_no_rnd_pixels16_l2
  dsputil: add missing HAVE_YASM guard
  hwaccel: do not offer unsupported pixel formats
  vdpau: add missing pixel format for H.264

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

AVG_PIXELS8_XY2: fix typo, make code actually work

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

dsputil: x86: Correct the number of registers used in put_no_rnd_pixels16_l2

put_no_rnd_pixels16_l2 allocated 5 instead of 6 registers.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

dsputil: add missing HAVE_YASM guard

Fix compile error under
"--disable-optimizations --disable-yasm --disable-inline-asm"

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

x86/mpeg4qpel: Fix author attribution

Also fix project name

See git blame/log/show and
commit 826f429ae9990632a04b06bd375afa54ffe54b76
Author: Michael Niedermayer <michaelni@gmx.at>
Date:   Sun Jan 5 15:57:10 2003 +0000

    qpel in mmx2/3dnow
    qpel refinement quality parameter

    Originally committed as revision 1393 to svn://svn.ffmpeg.org/ffmpeg/trunk

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

x86/hpeldsp: Fix author attribution

This also fixes the project name

Original authors fabrice and nick go back to the initial ffmpeg commit
Others for example contributed in: (for a complete list please use git blame / show / log)

commit e9c0a38ff0a9d4754220ae3432b2cdebe5a1c781
Author: Zdenek Kabelac <kabi@informatics.muni.cz>
Date:   Tue May 28 16:35:58 2002 +0000

    * optimized avg_* functions (except xy2)
    * minor speedup for put_pixels_x2 & cleanup

    Originally committed as revision 619 to svn://svn.ffmpeg.org/ffmpeg/trunk

commit 607dce96c0225e30ae2e7f3b8de2d00b4f064805
Author: Michael Niedermayer <michaelni@gmx.at>
Date:   Fri May 17 01:04:14 2002 +0000

    hopefully faster mmx2&3dnow MC

    Originally committed as revision 506 to svn://svn.ffmpeg.org/ffmpeg/trunk

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

Merge commit '71155d7b4157fee44c0d3d0fc1b660ebfb9ccf46'

* commit '71155d7b4157fee44c0d3d0fc1b660ebfb9ccf46':
  dsputil: x86: Convert mpeg4 qpel and dsputil avg to yasm

Conflicts:
libavcodec/x86/dsputil_mmx.c

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

Merge commit 'f90ff772e7e35b4923c2de429d1fab9f2569b568'

* commit 'f90ff772e7e35b4923c2de429d1fab9f2569b568':
  Move H264/QPEL specific asm from dsputil.asm to h264_qpel_*.asm.
  doc: update the reference for the title

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

lavf/srtdec: do not try to queue empty subtitle chunks.

Regression since 3af3a30.
Fixes Ticket2167.

arm: vp8: Fix the plain-armv6 version of vp8_luma_dc_wht

This makes the plain-armv6 version use the same registers as the
armv6t2 version above.

This fixes fate-vp8 on plain-armv6 devices.

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

lavc/iff: rgbn: fix decoding on big endian

Fixes #2193.

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

dsputil: x86: Correct the number of registers used in put_no_rnd_pixels16_l2

put_no_rnd_pixels16_l2 allocated 5 instead of 6 registers.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

dsputil: add missing HAVE_YASM guard

Fix compile error under
"--disable-optimizations --disable-yasm --disable-inline-asm"

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

hwaccel: do not offer unsupported pixel formats

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

vdpau: add missing pixel format for H.264

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

dsputil: x86: Convert mpeg4 qpel and dsputil avg to yasm

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

swr/ build_filter: use av_calloc() fix buffer overflow

Fixes integer & buffer overflow

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

swr: limit phase_shift to a less insane value.

This prevents potential crashes and out of memory issues if
the user manually sets such insane values.

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

Move H264/QPEL specific asm from dsputil.asm to h264_qpel_*.asm.

tiff: in add_string_metadata() check the count more completely

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

mvdec: check var_read_string() return value

Prevent null pointer dereference

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

mvdec: Check the frame counter against the correct limit.

fixes out of array reads

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

sws: disable yuv2rgb warning for planar rgb.

planar rgb formats do not use the table

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

sws: include isRGB in  isAnyRGB() so that future RGB formats wont be missed again

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

sws: add planar RGB formats to isAnyRGB

We have to make some symetric changes elsewhere as this increases
the precission with which samples are stored.

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

sws: dont enable chrSrcHSubSample for planar RGB

This code path is not implemented and makes not much sense to implement
either.

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

sws: use planarRgbToRgbWrapper only for 8bit per component

The function doesnt support >8bit currently

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  mpegvideo_enc: fix indentation in load_input_picture()

Conflicts:
libavcodec/mpegvideo_enc.c

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

Merge commit '3f47d316cda9037024ffbc76f789332e62b729bc'

* commit '3f47d316cda9037024ffbc76f789332e62b729bc':
  mpegvideo_enc: do not modify the input frame.

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

Merge commit '7bcaeb408e3eb2d2f37a306009fa7fe7eb0f1d79'

* commit '7bcaeb408e3eb2d2f37a306009fa7fe7eb0f1d79':
  mjpegdec: fix indentation
  rawdec: cosmetics, reformat
  mimic: return meaningful error codes.

Conflicts:
libavcodec/mjpegdec.c
libavcodec/rawdec.c

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

Merge commit 'a0cabd0a27587525e90a44660c795d40d2f44fe2'

* commit 'a0cabd0a27587525e90a44660c795d40d2f44fe2':
  mimic: cosmetics, reformat
  iff: drop ff_ prefix from a static function.
  pngdec: cosmetics, reformat.
  dxa: return meaningful error codes.
  eatgq: cosmetics, reformat.

Conflicts:
libavcodec/dxa.c
libavcodec/eatgq.c
libavcodec/iff.c
libavcodec/mimic.c
libavcodec/pngdec.c

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

doc/texi2pod: fix warnings introduced in e7e14bc69a606a6bec82efef729263cd38f122d4

The variable "$section" was replaced by "$chapter".

remove av_strnstr from Changelog

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

doc: update the reference for the title

The recent texi2html exports the title as 'fulltitle_no_texi'.

Merge commit 'f337c29017b10c98ccb4dce20efced4c74b665f6'

* commit 'f337c29017b10c98ccb4dce20efced4c74b665f6':
  eatgq: return meaningful error codes.
  eatgv: cosmetics, reformat

Conflicts:
libavcodec/eatgq.c
libavcodec/eatgv.c

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

Merge commit 'ade402804a0e811cd00862c90559121a793054a6'

* commit 'ade402804a0e811cd00862c90559121a793054a6':
  eatgv: return meaningful error codes.
  cyuv: return meaningful error codes.
  txd: return meaningful error codes.

Conflicts:
libavcodec/cyuv.c
libavcodec/eatgv.c

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

Merge commit '69c25c9284645cf5189af2ede42d6f53828f3b45'

* commit '69c25c9284645cf5189af2ede42d6f53828f3b45':
  dnxhdenc: fix invalid reads in dnxhd_mb_var_thread().
  x86: h264qpel: Move stray comment to the right spot and clarify it
  atrac3: use correct loop variable in add_tonal_components()

Conflicts:
tests/ref/vsynth/vsynth1-dnxhd-1080i
tests/ref/vsynth/vsynth2-dnxhd-1080i

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

Merge commit 'ded3673d77943c376d94e8157b1238bbd1eeca2d'

* commit 'ded3673d77943c376d94e8157b1238bbd1eeca2d':
  doc: document libx264 options and mappings
  libx264: introduce -x264-params private option

Conflicts:
doc/encoders.texi

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

Merge commit '38c1466ca41c73c7ce347da702362cb69c151716'

* commit '38c1466ca41c73c7ce347da702362cb69c151716':
  dict: add av_dict_parse_string()
  doc: support multitable in texi2pod

Conflicts:
doc/APIchanges
libavutil/version.h

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

mpegvideo_enc: fix indentation in load_input_picture()

mpegvideo_enc: do not modify the input frame.

mjpegdec: fix indentation

rawdec: cosmetics, reformat

mimic: return meaningful error codes.

mimic: cosmetics, reformat

iff: drop ff_ prefix from a static function.

pngdec: cosmetics, reformat.

Also remove a commented out line.

dxa: return meaningful error codes.

eatgq: cosmetics, reformat.

lavc/iff: ilbm: unbreak decoding on big endian

Fixes #2192.

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

eatgq: return meaningful error codes.

eatgv: cosmetics, reformat

eatgv: return meaningful error codes.

cyuv: return meaningful error codes.

txd: return meaningful error codes.

lavfi/vf_drawtext: default to expansion=normal.

dnxhdenc: fix invalid reads in dnxhd_mb_var_thread().

Do not assume that frame dimensions are mod16 (or that height is mod32
for interlaced).

CC:libav-stable@libav.org

fate: add an attachment to the Matroska test.

lavfi: version bump and change log entries after the last commits.

x86: h264qpel: Move stray comment to the right spot and clarify it

ffmpeg: support filtering of unknown channel layouts.

lavfi/af_anull: accept unknown channel layouts.

lavfi/af_aresample: accept unknown channel layouts.

lavfi/af_aformat: accept unknown channel layouts.

lavfi/buffersrc: accept unknown channel layouts.

lavfi/sink_buffer: accept unknown channel layouts.

Add a field to the AVBufferSinkParams for a list of accepted
channel counts.
Change the default value for the lists in AVBufferSinkParams
to NULL, to let lavfi fill them with something useful.
The fail_enomem path is unneeded because filters are uninited
on failure.

lavfi: implement ff_query_formats_all().

lavfi: implement ff_all_channel_counts().

lavfi: support unknown channel layouts.

ffmpeg: add -guess_layout_max option.

lavc/gif: remove some obsolete/irrelevant chunks

Some code was copy pasted from muxer, which still
have same comments but unlike encoder they are still
relevant to muxer.

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

lavf/gifdec: cosmetics: remove extra whitespace

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

lavf/gifdec: fix typo

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

sws: GBRP9, GBRP10 GBRP12 GBRP14 output support

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

sws: GBRP output support

Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

atrac3: fix buffer size for get_bits.

Fixes out of array reads

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

indeo4: check for invalid transform_size blk_size combinations

The checks existing previously where not sufficient
Fixes out of array accesses

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

4xm: remove avcodec_get_frame_defaults() calls

They are not needed anymore

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

4xm: add assert to check that the pointer from read_huffman_tables is within the array

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

4xm: Check available space in read_huffman_tables()

Fixes integer overflow and out of array accesses

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

Fix atrac3 decoder broken in e55d53905f34f8e8747f6d321e9a695dc02ebb2f

Signed-off-by: Michael Karcher <ffmpeg@mkarcher.dialup.fu-berlin.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

ffv1enc: fix gbrp>8bit

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

atrac3: use correct loop variable in add_tonal_components()

Signed-off-by: Michael Karcher <ffmpeg@mkarcher.dialup.fu-berlin.de>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
CC:libav-stable@libav.org

lavfi/showwaves: fail in case of push_frame() error

doc/filters: apply minor fixes