swr: check that the context for swr_convert() has been initialized

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

swresample: add swr_is_initialized()

Idea-from/based-on: 7e86c27b4ee9e5a3fbe6cf5249b9d918b2a5e731
Reviewed-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

oggdec: validate VP8 keyframes

Fixes seeking with broken files

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: add detection for Bit Manipulation Instruction sets

Conflicts:
libavutil/x86/cpu.c

See: 0bc3de19ffe296254f214dc7615e624d8e401bcb
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '1b932eb1508f550fac9e911923a0383efda53aa3'

* commit '1b932eb1508f550fac9e911923a0383efda53aa3':
  x86: add detection for FMA3 instruction set

Conflicts:
configure
libavutil/cpu.h
libavutil/x86/cpu.c

See: a2af8eddab75f1eac712411e4dde89823c0845e8
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '10b0161d78148f46eaffb29ea022378947eaef2c'

* commit '10b0161d78148f46eaffb29ea022378947eaef2c':
  x86: add missing XOP checks and macros

Conflicts:
configure
libavutil/x86/cpu.h

See: 6c12b1de064d2604d19cb4c238a788cfed9679ac
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '5800ba0db667630e6ff81d30f03961ea10726aa6'

* commit '5800ba0db667630e6ff81d30f03961ea10726aa6':
  configure: disable cpunop if the check fails

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

configure: Move cpunop into ARCH_EXT_LIST_X86

It is a processor feature, so it belongs there.

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

Merge commit '8eeacf31c5ea37baf6b222dc38d20cf4fd33c455'

* commit '8eeacf31c5ea37baf6b222dc38d20cf4fd33c455':
  hevc: Do not left shift a negative value in hevc_loop_filter_chroma

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

Merge commit 'ff486c0f7f6b2ace3f0238660bc06cc35b389676'

* commit 'ff486c0f7f6b2ace3f0238660bc06cc35b389676':
  hevc: Do not right shift a negative value in get_pcm

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

Merge commit '50c988aa6d6c6f0ceb8f922bcea34800b56b85d9'

* commit '50c988aa6d6c6f0ceb8f922bcea34800b56b85d9':
  hevc: Drop unnecessary shifts in deblocking_filter_CTB

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

avcodec/pngenc: fix invalid read in sub filter.

First pixel was computed based on invalid address read, and then
corrected by the following memcpy. After the commit, it's not computed
anymore, and memcpy fills the appropriate area.

Fixes Ticket #3387

avcodec/h264: clear chroma planes when flags gray is used

Fixes Ticket3397
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/mpegvideo: fix buffer clear code so it should work with negative linesizes

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

x86: add detection for Bit Manipulation Instruction sets

Based on x264 code

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

x86: add detection for FMA3 instruction set

Based on x264 code

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

x86: add missing XOP checks and macros

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

configure: disable cpunop if the check fails

Moving cpunop from the HAVE_LIST to the ARCH_EXT_LIST_X86 has the side
effect of enabling it. The semantics of the check have to be changed
from enable if successful to disable if unsuccessful. This was missing
in 2b0bb69997c2416e74f41aa1400ce983bf8775c0 causing build errors with
nasm.

hevc: Do not left shift a negative value in hevc_loop_filter_chroma

hevc: Do not right shift a negative value in get_pcm

hevc: Drop unnecessary shifts in deblocking_filter_CTB

beta_offset is pre-multiplied by 2.

Add more Bayer colour spaces to the video4linux2 device wrapper.

avdevice/v4l2: add V4L2_PIX_FMT_SRGGB8

Issue-#3407 : Enhance precision for double to string conversion, useful for GEOTIFF double values

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

libswscale: bayer to rgb24 & yv12 colorspace converters

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

avcodec/rawdec: for 16-bit pix fmts, shift pixels when bits_per_coded_sample < 16

Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avutil/pixdesc: set bayer pixfmt descriptor flags

Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

configure: Revert commit 5176e9651bda5182df008a1226e2484fdd809985

This fixes cpunop detection and unbreaks NASM assembly

Signed-off-by: Dave Yeo <daveryeo@telus.net>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Support old qclp-in-mov files that do not store bytes_per_frame in the header.

Fixes ticket #2649.

Support MPEG-2 video mov files with sample description mp2v.

avformat/movenc: shift positive timestamps to 0 if edit lists cannot be used

Fix handling of timestamps which start  far away from 0

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

avformat/mux: support shifting timestamps so they start at 0

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

swresample: factorize clear_context() out

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  lavr: return an error if a avresample_open() is called on an open context

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

Merge commit '7e86c27b4ee9e5a3fbe6cf5249b9d918b2a5e731'

* commit '7e86c27b4ee9e5a3fbe6cf5249b9d918b2a5e731':
  lavr: add a function for checking whether AVAudioResampleContext is open

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

lavr: return an error if a avresample_open() is called on an open context

lavr: add a function for checking whether AVAudioResampleContext is open

avformat/nut: add bayer colorspaces

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

avcodec/raw: add bayer formats

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

x86: add detection for Bit Manipulation Instruction sets

Based on x264 code

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

x86: add detection for FMA3 instruction set

Based on x264 code

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  h264: Fix a typo from the previous commit

See: 76dd01ecd4ed51e0669773470ee0d8db2c2e4d3f
Merged-by: Michael Niedermayer <michaelni@gmx.at>

avformat/utils: compute_pkt_fields: Fix DTS for the case where has_b_frames is too large but the correct one is constant

Fixes issue1.m2ts

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

avformat/utils: reset pts_buffer in estimate_timings_from_pts()

This fixes the first few dts after find_stream_info

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

avformat/utils: factorize h264/hevc checks out in compute_pkt_fields()

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

SDR2 demuxer

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

h264: Fix a typo from the previous commit

f777504f640260337974848c7d5d7a3f064bbb45 changed a - in +

CC: libav-stable@libav.org

Fix FSF address in colormatrix and libzvbi license headers.

As reported by irc user aca.
The files in compat/avisynth are maintained elsewhere, no changes.

avcodec/h264_ps: fix printed num_reorder_frames value

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

avcodec/h264: use subsample factors of the used pixel format

Fixes out of array read
Fixes: 1cb91c36c4e55463f14aacb9bdf55b38-asan_heap-oob_106cbce_5617_cov_11212800_h264_mmx_chroma_intra_lf.mp4
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  mxf: Add DNxHD UL

See: 2ff540a0fe02c2d2588a7d2aa7820e66a615de95
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit 'a9099e04026f300924ac363fa6f8aef912677d90'

* commit 'a9099e04026f300924ac363fa6f8aef912677d90':
  mxf: Add uncompressed 422 8-bit rawvideo UL

Conflicts:
libavformat/mxf.c

See: 51d632cc8f4c8fa1556d7d8c18c5488700eb6154
Merged-by: Michael Niedermayer <michaelni@gmx.at>

qcelp: grammar

Signed-off-by: Reynaldo H. Verdejo Pinochet <r.verdejo@sisa.samsung.com>

qcelpdec: break some too-long lines

Signed-off-by: Reynaldo H. Verdejo Pinochet <r.verdejo@sisa.samsung.com>

Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  Do not warn about missing start time for unknown streams.
  Only complain about missing frame rate for video streams.

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

tests/tiny_ssim: drop isatty() support

tiny_ssim is build on the host, not the target and the HAVE_* are set for the
target.
This patch fixes building tiny_ssim when HAVE_* differed between target and host

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

Do not warn about missing start time for unknown streams.

Only complain about missing frame rate for video streams.

mxf: Add DNxHD UL

Note that the old DNxHD UL is actually JPEG 2000 according to RP224.
Leaving it as-is for now.

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

mxf: Add uncompressed 422 8-bit rawvideo UL

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  libvorbis: Give consistent names to all functions, structs, and defines

Conflicts:
libavcodec/libvorbisenc.c

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

libvorbis: Give consistent names to all functions, structs, and defines

avformat/movenc: assert that get_cluster_duration() value is valid

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

avformat/movenc: check that the input timestamps are within the range that can be stored in mov

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

avcodec/h264: fix sign error

regression since f777504f640260337974848c7d5d7a3f064bbb45

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

avcodec: fix dxva2 & vaapi after removing the +52 offset from the loop filter parameters

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  h264: Lower bound check for slice offsets

Conflicts:
libavcodec/h264.c

See: 91253839e14cce9793ee93f184cef609ca8195d5
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '5c79d2e12d13959fc6aed92d102c25194a06de05'

* commit '5c79d2e12d13959fc6aed92d102c25194a06de05':
  avconv: Do not divide by zero

Conflicts:
ffmpeg.c

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

Merge commit 'd6a27f885b5d4cba7a82e50af423c741d2f37c3e'

* commit 'd6a27f885b5d4cba7a82e50af423c741d2f37c3e':
  configure: Add usan to the toolchain presets

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

Merge commit '2b0bb69997c2416e74f41aa1400ce983bf8775c0'

* commit '2b0bb69997c2416e74f41aa1400ce983bf8775c0':
  configure: Move cpunop into ARCH_EXT_LIST_X86

Conflicts:
configure

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

Merge commit '6adf4290ebcf65ac8243d74f34ba0a508f561633'

* commit '6adf4290ebcf65ac8243d74f34ba0a508f561633':
  configure: Move inet_aton check into network function check block

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

Merge commit '9c029f67ca82147ddfa83a1546ee1e109e11fbd4'

* commit '9c029f67ca82147ddfa83a1546ee1e109e11fbd4':
  aarch64: use EXTERN_ASM consistently for exported symbols

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

Merge commit '996697e266c8adc0ad9b7fc7568406c7529c97cf'

* commit '996697e266c8adc0ad9b7fc7568406c7529c97cf':
  x86: float dsp: unroll SSE versions

See: 133b34207c2ca3ae214dfd429288ac6e31efa5dc
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit 'ef010f08ae53479c54e2f16be5a7e1a809a9e268'

* commit 'ef010f08ae53479c54e2f16be5a7e1a809a9e268':
  dca: replace some memcpy by AV_COPY128

See: 5a48caa34b0c2a2641ea3bd522802fa1df2c8866
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '982b596ea6640bfe218a31f6c3fc542d9fe61c31'

* commit '982b596ea6640bfe218a31f6c3fc542d9fe61c31':
  h264: avoid undefined behavior in chroma motion compensation

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

h264: Lower bound check for slice offsets

And use the value from the specification.

Sample-Id: 00000451-google
Found-by: Mateusz j00ru Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

avconv: Do not divide by zero

configure: Add usan to the toolchain presets

clang-3.4 and gcc-4.9 have it.

configure: Move cpunop into ARCH_EXT_LIST_X86

It is a processor feature, so it belongs there.

configure: Move inet_aton check into network function check block

avformat/mov: make invalid sampledelta error more verbose

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

Merge remote-tracking branch 'cigaes/master'

* cigaes/master:
  ffmpeg: make reading packets from thread blocking.

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  mpeg4video_parser: Drop pointless av_-prefix from static function

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

Merge commit '984e3398662d460e15904f9e4a6df9ef759070cb'

* commit '984e3398662d460e15904f9e4a6df9ef759070cb':
  avcodec: Consistently name encoder init functions foo_encode_init

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

aarch64: use EXTERN_ASM consistently for exported symbols

Based on e3fec3f095ab5ea08ee662942d98526aaf5e3635 for arm.

Merge commit '017a06a9ee86b047079166c2694c9c655ff03356'

* commit '017a06a9ee86b047079166c2694c9c655ff03356':
  x86: dsputil: Use correct file name as multiple inclusion guard

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

Merge commit 'ba42c852477e87f6e47a5587e8f7829c46c52032'

* commit 'ba42c852477e87f6e47a5587e8f7829c46c52032':
  bit_depth_template: Use file name as multiple inclusion guard

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

Merge commit '61e7c7f27b0a2652bf5cd282b97762ee99d025ef'

* commit '61e7c7f27b0a2652bf5cd282b97762ee99d025ef':
  svq3: Adjust #endif comment

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

Merge commit '192ccc5034ad4ac1b5022fc16c1162267add6a0f'

* commit '192ccc5034ad4ac1b5022fc16c1162267add6a0f':
  build: The MPEG-4 video parser depends on h263dsp

Conflicts:
configure

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

x86: float dsp: unroll SSE versions

vector_fmul and vector_fmac_scalar are guaranteed that they can process in
batch of 16 elements, but their SSE versions only does 8 at a time.

Therefore, unroll them a bit.
299 to 261c for 256 elements in vector_fmac_scalar on Arrandale/Win64.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

dca: replace some memcpy by AV_COPY128

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

h264: avoid undefined behavior in chroma motion compensation

Makes fate-h264 pass under valgrind --undef-value-errors=yes with
-cpuflags none. {avg,put}_h264_chroma_mc8_8 approximately 5% faster,
{avg,put}_h264_chroma_mc4_8 2% faster both on x86 and arm.

mpeg4video_parser: Drop pointless av_-prefix from static function

avcodec: Consistently name encoder init functions foo_encode_init

x86: dsputil: Use correct file name as multiple inclusion guard

bit_depth_template: Use file name as multiple inclusion guard

svq3: Adjust #endif comment

build: The MPEG-4 video parser depends on h263dsp

The dependency is indirect through the h263/mpegvideo code.
CC: libav-stable@libav.org

ffmpeg: make reading packets from thread blocking.

If a packet is not ready on the input selected by ffmpeg,
it will read from another input instead. If that happens
repeatedly, frames will accumulate somewhere later in the
processing to ensure streams synchronization. It can happen
in particular when reading from a slow medium or an
expensive lavfi filter graph.

Make reading from normal demuxers on non-streamed data and
from the lavfi pseudo-device blocking to avoid that.

Should fix trac ticket #3079.

avcodec/mpeg4videodec: Check for bitstream overread in decode_vol_header()

Fixes out of array read
Fixes: 08e48e9daae7d8f8ab6dbe3919e797e5-asan_heap-oob_157461c_5295_cov_1266798650_firefing.mpg
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>