doc/muxers/segment: fix formula for computing the segment_time_delta value

lavfi/vidstabtransform: apply various documentation/option minor fixes

Improve consistency with the rest of the documentation.

avcodec/aacdec: Dont fail if channels arent known yet

Fixes Ticket3312

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

avcodec/mjpegdec: Dont treat the lack of a startcode differently from end of the bitstream

Fixes Ticket3303

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

avcodec/mjpegdec: only run EOI emulation code when there was a scan

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

avcodec/mjpegdec: update cur_scan also for non-LS jpeg

This should make no difference but the variable will be used in a subsequent commit

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

avcodec/dnxhdenc: return meaningful return codes

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  h264: check that an IDR NAL only contains I slices

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

Merge commit '9ecabd7892ff073ae60ded3fc0a1290f5914ed5c'

* commit '9ecabd7892ff073ae60ded3fc0a1290f5914ed5c':
  h264: reset num_reorder_frames if it is invalid

Note, num_reorder_frames is not used in the failure case

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

Merge commit '0652e024c680420d298cdf3719d0a0c030173fe3'

* commit '0652e024c680420d298cdf3719d0a0c030173fe3':
  h264: reset ref count if decoding the slice header fails

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

Merge commit '98cc9efc5f6b4dc847ed3b9b60b1c3bcd14e6791'

* commit '98cc9efc5f6b4dc847ed3b9b60b1c3bcd14e6791':
  h264: prevent two matching fields from being both a short/long ref combination

See: 92002db3eb437414281ad4fb6e84e34862f7fc92
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '00dbff4c3e048b4abd01bf805725aabff0fa5ee1'

* commit '00dbff4c3e048b4abd01bf805725aabff0fa5ee1':
  h264: do not call field_end if we do not have a current picture

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

Merge commit '7f0e81db3c4ee6f8ce15058bafa72ce928a89f3f'

* commit '7f0e81db3c4ee6f8ce15058bafa72ce928a89f3f':
  h264: limit allowed pred modes in ff_h264_check_intra_pred_mode() to 3

Conflicts:
libavcodec/h264.c

See: d6a33f5d20b6ef2eae2cbb959b001cb125a564b7
See: 2005fddcbb4e18e8f7c34326e40609e4a2d83c31
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit 'd1b3fabe6945e511bb20fc9ca52b47eb952526ee'

* commit 'd1b3fabe6945e511bb20fc9ca52b47eb952526ee':
  h264: reset first_field if frame_start() fails for missing refs

See: d7599bd8e240b923486bd130a33d38f66bb14eae
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '210881110d3e22cca36edeaca118b5e22c998266'

* commit '210881110d3e22cca36edeaca118b5e22c998266':
  Prepare for 10_alpha2 Release

Conflicts:
RELEASE

Not merged

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

h264: check that an IDR NAL only contains I slices

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

h264: reset num_reorder_frames if it is invalid

An invalid VUI is not considered a fatal error, so the SPS containing it
may still be used. Leaving an invalid value of num_reorder_frames there
can result in writing over the bounds of H264Context.delayed_pic.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

h264: reset ref count if decoding the slice header fails

Otherwise the ER code might try to use some already freed references.

Fixes possible access to freed memory.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

h264: prevent two matching fields from being both a short/long ref combination

Fixes possible access to freed memory.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

h264: do not call field_end if we do not have a current picture

Fixes invalid reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

h264: limit allowed pred modes in ff_h264_check_intra_pred_mode() to 3

Higher modes are not allowed for 16x16/chroma, which is what this
function is used for. Otherwise this function would return 0 (vertical
prediction) for invalid higher modes, which could result in invalid
reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

h264: reset first_field if frame_start() fails for missing refs

In this case we may not have a current frame, while first_field being
set implies we do.

Fixes invalid reads.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org

swresample: Add arm&x86 clobber tests

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

vp9/x86: rename ff_avg[48]_sse to ff_avg[48]_mmxext

pavgb is an sse integer instruction, so the mmxext flag is enough

Signed-off-by: James Almer <jamrial@gmail.com>
Reviewed-by: "Ronald S. Bultje" <rsbultje@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Prepare for 10_alpha2 Release

avcodec/mpegvideo_enc: fix custom matrixes with jpeg

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

x86inc: speed up compilation with yasm

Work around yasm's inefficiency with handling large numbers of variables
in the global scope.

ffmpeg: change ost->finished to an enum

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

ffmpeg: update statistics only when a packet is actually muxed

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

ffmpeg/flush_encoders: dont mux packets once ost->finished has been set

Fixes muxing frames after av_interleaved_write_frame() failure

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

ffmpeg: properly close down muxers on av_interleaved_write_frame() failure

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

ffmpeg: check ost->finished in check_output_constraints()

No testcase but it seems logic to stop when finished is set

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

ffmpeg: check ost->finished in reap_filters()

This avoids finished output streams continuing to receive frames

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

avformat/metadata: allow ff_metadata_conv() to be called with NULL saftely

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

avfilter/vf_elbg: Fixed seed range of elbg filter

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

avcodec/dnxhdenc: check that qmax is within the supported range

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

dnxhdenc: fix mb_rc size

Fixes out of array access with RC_VARIANCE set to 0

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

avformat/riff: fix demuxing of h264 INMC

Its said that there was a mpeg4 sample with the same fourcc, but noone has it
if someone finds it please tell me so i can fix detection of both.

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

Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  Fix libxvid crash on failing initialisation.

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  avisynth: fix setting packet properties

See: 4cb9c2013662b46e8101d6fdf6c69d41668c8b9a
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '104a97beaffa6348e6fd2c2d07d67c1402322bb3'

* commit '104a97beaffa6348e6fd2c2d07d67c1402322bb3':
  buffersrc: handle non-refcounted frames in av_buffersrc_add_frame() correctly

Conflicts:
libavfilter/buffersrc.c

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

Merge commit '5ef11b8dcc054b230deb9b20493255c14a80597d'

* commit '5ef11b8dcc054b230deb9b20493255c14a80597d':
  yuv4mpeg: set average frame rate

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

Merge commit '2ce8bca51f7264b47027f69d50dd8e49aa2fd683'

* commit '2ce8bca51f7264b47027f69d50dd8e49aa2fd683':
  avconv: print a warning when falling back to default 25fps

Conflicts:
ffmpeg.c

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

Merge commit '33018907bd07b34e0e70d5ae12097265eb3734d7'

* commit '33018907bd07b34e0e70d5ae12097265eb3734d7':
  mp3enc: allow omitting the id3v2 header with -id3v2_version 0

Conflicts:
doc/muxers.texi
libavformat/version.h

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

Merge commit 'f9cc6883a4e5cf72cbfa21d17e1908a2a432f6bd'

* commit 'f9cc6883a4e5cf72cbfa21d17e1908a2a432f6bd':
  mp3enc: add an option for disabling the Xing frame.

Conflicts:
doc/muxers.texi
libavformat/mp3enc.c

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

Merge commit '045654f422e74be8ed09a0819d39051d67633a09'

* commit '045654f422e74be8ed09a0819d39051d67633a09':
  doxy: Document better the available AVFrame flags

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

Merge commit 'ff23c4e4935e96e62d8ff2212a1955a43add88e1'

* commit 'ff23c4e4935e96e62d8ff2212a1955a43add88e1':
  doxy: Add AVFrame to the structured modules

Conflicts:
libavutil/frame.h

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

Fix libxvid crash on failing initialisation.

Fixes ticket #3297.

Merge commit '87acd33c092ab9e7d73686627e9105d99c1e4928'

* commit '87acd33c092ab9e7d73686627e9105d99c1e4928':
  aviocat: Add support for specifying the input duration

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

Merge commit '03f2de5856ec8571fcf5f4cf6dccc713294af545'

* commit '03f2de5856ec8571fcf5f4cf6dccc713294af545':
  aviocat: Check the argv array length before reading element i+1

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

vp9/x86: add ff_vp9_loop_filter_[vh]_16_16_sse2().

Similar gains in performance as the SSSE3 version

Signed-off-by: James Almer <jamrial@gmail.com>

avisynth: fix setting packet properties

Reviewed-by: Stephen Hutchinson <qyot27@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

buffersrc: handle non-refcounted frames in av_buffersrc_add_frame() correctly

yuv4mpeg: set average frame rate

avconv: print a warning when falling back to default 25fps

mp3enc: allow omitting the id3v2 header with -id3v2_version 0

mp3enc: add an option for disabling the Xing frame.

doxy: Document better the available AVFrame flags

doxy: Add AVFrame to the structured modules

aviocat: Add support for specifying the input duration

This avoids the caller having to calculate the byte rate if wanting
to push a file in a rate resembling realtime.

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

aviocat: Check the argv array length before reading element i+1

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

avcodec: make "bitrate tolerance too small for bitrate" error more verbose

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

avcodec/kgv1dec: fix memleak, reintroduce lost decode_flush() call

fixes regression since 80d44190c4d909e9685d04bcde693da3e2441dfd and 1a0370ad94de094a5ac754e790d4ec8d8d0d9ee7
this reverts the buggy changes in these 2 commits

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

avcodec/huffyuv: fix median prediction for >8bps

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

avcodec/huffyuv: add YUVA{420,422,444}P{9,10} support

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

avcodec/huffyuv: add YUV{420,422,444}P{9,10,12,14} support

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

libavcodec/huffyuv: >8 bit support

This adds only yuv420p10, others are trivial to add after this commit
and will be added in a subsequent commit.
Currently the implementation is not optimized, optimizations will be
added later

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

avcodec/huffyuvenc: init bps from pixel descriptor

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

avcodec/huffyuv: add a field that represents the number of symbols

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

vp9/x86: 16x16 iadst_idct, idct_iadst and iadst_iadst (ssse3+avx).

Sample timings on ped1080p.webm (of the ssse3 functions):
iadst_idct:  4672 -> 1175 cycles
idct_iadst:  4736 -> 1263 cycles
iadst_iadst: 4924 -> 1438 cycles
Total decoding time changed from 6.565s to 6.413s.

lavfi/vidstabtransform: apply various cosmetical nits

configure: add version check for pkg libraries, and use it for vidstab

Also fix trac ticket #3296.

Signed-off-by: Georg Martius <martius@mis.mpg.de>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

lavfi/vidstabdetect,vidstabtransform: update to vid.stab 0.98

In particular:
* set default value for accuracy to 15 (max)
* add zoomspeed for dynamic zoom (optzoom=2)
* make camera path optimization algorithm configurable
* update optzoom documenation in code to use new localmotions calculation function commandline arguments
* add debug option in vidstabtransform

Signed-off-by: Georg Martius <martius@mis.mpg.de>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

vp9/x86: simplify a few mc inits.

Warn if s16be is muxed into flv.

Players that conform to the specification can only playback such
files correctly on big-endian hardware.

Never favour an audio stream with 0 channels in av_find_best_stream().

Fixes ticket #3311.

Do not read mkv audio bit_depth if bits_per_coded_sample is already set.

This allows decoding broken mkv files containing G.726 audio.

Do not set mkv bit_depth to av_get_bytes_per_sample() for G.726.

The value is wrong and leads to broken files.

avformat/jvdec: clear packet padding after downsize

Fixes: use of uninitialized memeory
Fixes: msan_uninit-mem_7fbf26b5fefe_5981_intro.jv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/pgssubdec: Use av_fast_padded_malloc() for rle buffer

Fixes: use of uninitialized memeory
Fixes: msan_uninit-mem_7fa421d0e222_1765_Girl_With_The_Dragon_Tattoo_2_23_56.mkv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

fate: add WebP Exif metadata test

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  x86: dsputil: Simplify xvmc deprecation conditional

Conflicts:
libavcodec/x86/dsputil_init.c

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

Merge commit 'dc4d726bab59f349d366916ba01df16289e5c81f'

* commit 'dc4d726bab59f349d366916ba01df16289e5c81f':
  build: Add separate hidden config option for the intrax8 code

Conflicts:
libavcodec/Makefile

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

avformat/mxfdec: fix typo in error check of mxf_edit_unit_absolute_offset()

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  aarch64: port neon clobber test from arm

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

Merge commit 'f896bca03fc63b93851c1c14c9321c20b3cd44a6'

* commit 'f896bca03fc63b93851c1c14c9321c20b3cd44a6':
  aarch64: h264 (bi)weight NEON optimizations

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

Merge commit '36e3b1f2fd262028834a9d7b1eb533c1218ee6c2'

* commit '36e3b1f2fd262028834a9d7b1eb533c1218ee6c2':
  aarch64: h264 loop filter NEON optimizations

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

x86: dsputil: Simplify xvmc deprecation conditional

build: Add separate hidden config option for the intrax8 code

This allows for slightly cleaner dependency specification.

Merge commit 'c65d67ef50241886b9749e88fd333c52090f70c7'

* commit 'c65d67ef50241886b9749e88fd333c52090f70c7':
  aarch64: hpeldsp NEON optimizations

Conflicts:
libavcodec/hpeldsp.c
libavcodec/hpeldsp.h

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

Merge commit 'd5dd8c7bf0f0d77c581db3236e0d938f06fd5591'

* commit 'd5dd8c7bf0f0d77c581db3236e0d938f06fd5591':
  aarch64: h264 qpel NEON optimizations

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

Merge commit '8438b3f09f6b225d0886cc385117c38eb44ca0c1'

* commit '8438b3f09f6b225d0886cc385117c38eb44ca0c1':
  aarch64: h264 idct NEON assembler optimizations

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

Merge commit '71617884a2a673908bd5c0f73d4f91fdca3da82a'

* commit '71617884a2a673908bd5c0f73d4f91fdca3da82a':
  aarch64: h264 chroma motion compensation NEON optimizations

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

Merge commit 'b7b17ed66e199afc7246e642bf3b35c3f8eca217'

* commit 'b7b17ed66e199afc7246e642bf3b35c3f8eca217':
  aarch64: add cpuflags support for NEON and VFP

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

Merge commit '1e9265cd8f0821acbeca1db437be1361a3976b85'

* commit '1e9265cd8f0821acbeca1db437be1361a3976b85':
  dct-test: test ff_simple_idct_neon only on ARM for now

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

Merge commit '2620df13104ddaa136158eb6bb1195adbf9d7692'

* commit '2620df13104ddaa136158eb6bb1195adbf9d7692':
  mov: Free an earlier allocated array if allocating a new one

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

Merge commit 'd51f09962d5b4bc999fb70c040f330dd1873212e'

* commit 'd51f09962d5b4bc999fb70c040f330dd1873212e':
  mov: Free intermediate arrays in the normal cleanup function

Conflicts:
libavformat/mov.c

See: a6b3e6d0b49b47c9b874e59b88a8051af338f520
Merged-by: Michael Niedermayer <michaelni@gmx.at>

vp9/x86: add AVX for itxfm and lpf.

4412 decicycles in ff_vp9_loop_filter_h_16_16_ssse3, 4193462 runs, 842 skips
3600 decicycles in ff_vp9_loop_filter_h_16_16_avx, 4193621 runs, 683 skips

3010 decicycles in ff_vp9_loop_filter_v_16_16_ssse3, 4193528 runs, 776 skips
2678 decicycles in ff_vp9_loop_filter_v_16_16_avx, 4193742 runs, 562 skips

23025 decicycles in ff_vp9_idct_idct_32x32_add_ssse3, 2096871 runs, 281 skips
19943 decicycles in ff_vp9_idct_idct_32x32_add_avx, 2096815 runs, 337 skips

4675 decicycles in ff_vp9_idct_idct_16x16_add_ssse3, 4194018 runs, 286 skips
3980 decicycles in ff_vp9_idct_idct_16x16_add_avx, 4194022 runs, 282 skips

967 decicycles in ff_vp9_idct_idct_8x8_add_ssse3, 16776972 runs, 244 skips
887 decicycles in ff_vp9_idct_idct_8x8_add_avx, 16777002 runs, 214 skips

aarch64: port neon clobber test from arm

aarch64: h264 (bi)weight NEON optimizations

Ported from ARMv7 NEON.