libwebpenc_common: add header guards

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

libwebp: remove unneeded defines

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

WebP encoder: use WebPAnimEncoder API when available.

WebPAnimEncoder API is a combination of encoder (WebPEncoder) and muxer
(WebPMux). It performs several optimizations to make it more efficient
than the combination of WebPEncode() and native ffmpeg muxer.

When WebPAnimEncoder API is used:
- In the encoder layer: we use WebPAnimEncoderAdd() instead of
  WebPEncode().
- The muxer layer: works like a raw muxer.

On the other hand, when WebPAnimEncoder API isn't available, the old code is
used as it is:
- In the codec layer: WebPEncode is used to encode each frame
- In the muxer layer:  ffmpeg muxer is used

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

avformat/nutdec: Check X in 2nd branch of index reading

Prevents read of uninitialized variable

Based on patch by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '4e17946f10d39eec6cc03fb249ae8147373141b6'

* commit '4e17946f10d39eec6cc03fb249ae8147373141b6':
  mpegvideo: Rework various functions not to use MpegEncContext directly

Conflicts:
libavcodec/mpegvideo.c

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

Merge commit 'a3f4c930ac3f49f47b6e6ffda925d0dcf80320e2'

* commit 'a3f4c930ac3f49f47b6e6ffda925d0dcf80320e2':
  mpegvideo: Have ff_mpeg_ref_picture use AVCodecContext directly

Conflicts:
libavcodec/mpegvideo.c

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

Merge commit 'd528045558825f01472e9bee873f60c98d661e53'

* commit 'd528045558825f01472e9bee873f60c98d661e53':
  mpegvideo: Have ff_mpeg_unref_picture use AVCodecContext directly

Conflicts:
libavcodec/mpegvideo.c
libavcodec/mpegvideo_enc.c

The memset is left in place

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

Merge commit '6f54dc43cee6b2f5d183acf98b32a3cf8be4a4fc'

* commit '6f54dc43cee6b2f5d183acf98b32a3cf8be4a4fc':
  mpegvideo: Drop stream_codec_tag

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

Merge commit '9c1db92ad372d4cd69e0490e691c56e4097cb193'

* commit '9c1db92ad372d4cd69e0490e691c56e4097cb193':
  mpegvideo: Drop err_recognition

Conflicts:
libavcodec/h263dec.c
libavcodec/ituh263dec.c
libavcodec/mpeg4video.h
libavcodec/mpeg4videodec.c
libavcodec/msmpeg4dec.c

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

Merge commit '848e86f74d3e6e87fa592ee8ba8c184cc5fd9a42'

* commit '848e86f74d3e6e87fa592ee8ba8c184cc5fd9a42':
  mpegvideo: Drop flags and flags2

Conflicts:
libavcodec/mpeg12dec.c
libavcodec/mpeg12enc.c
libavcodec/mpegvideo.c
libavcodec/mpegvideo_enc.c
libavcodec/mpegvideo_motion.c
libavcodec/ratecontrol.c
libavcodec/vc1_block.c
libavcodec/vc1_loopfilter.c
libavcodec/vc1_mc.c
libavcodec/vc1dec.c

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

avcodec/movtextdec: Add support for large boxes(>32 bit)

Signed-off-by: Niklesh <niklesh.lalwani@iitb.ac.in>

mpegvideo: Rework various functions not to use MpegEncContext directly

mpegvideo: Have ff_mpeg_ref_picture use AVCodecContext directly

mpegvideo: Have ff_mpeg_unref_picture use AVCodecContext directly

This skips setting the memory to 0 but allows for reuse on different
contextes. Oracle did not report any unsual activity because of it.

mpegvideo: Drop stream_codec_tag

The field is unused.

mpegvideo: Drop err_recognition

It is just a duplicate of an AVCodecContext member so use it instead.

mpegvideo: Drop flags and flags2

They are just duplicates of AVCodecContext members so use those instead.

avformat/mxfenc: Add color siting element

Previous version Reviewed-by: tim nicholson <nichot20@yahoo.com>
Previous version Reviewed-by: Tomas Härdin <tomas.hardin@codemill.se>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/mux: Add ff_choose_chroma_location()

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

avcodec/mpeg12dec: Fix chroma location

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

avutil/pixfmt: Clarify DV example comments for AVChromaLocation

Signed-off-by: Tim Nicholson <tim.nicholson@bbc.co.uk>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '29216d7fd14d1cec16821867d17c90b5c49e8c07'

* commit '29216d7fd14d1cec16821867d17c90b5c49e8c07':
  tls: fix compilation when both gnutls and openssl are enabled

See: e91fbfd9cf17270d78c73add53fada4c217fdb5e
Merged-by: Michael Niedermayer <michaelni@gmx.at>

tls: fix compilation when both gnutls and openssl are enabled

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

tls: fix compilation when both gnutls and openssl are enabled

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

WebP encoder: extract out some methods into a separate helper library.

This is the 2nd patch in preparation for using WebPAnimEncoder API for encoding
and muxing WebP images.

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

Merge commit '94599a6de3822b13c94096d764868128f388ba28'

* commit '94599a6de3822b13c94096d764868128f388ba28':
  tls: Remove all the local polling loops

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

Merge commit 'd13b124eaf452b267480074b2e6946538ed03a6e'

* commit 'd13b124eaf452b267480074b2e6946538ed03a6e':
  tls: Remove the nonblocking code

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

Merge commit 'd15eec4d6bdfa3bd4c4b5b7dd2dbd699ba253d02'

* commit 'd15eec4d6bdfa3bd4c4b5b7dd2dbd699ba253d02':
  tls: Use custom IO to read from the URLContext

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

WebP muxer: support a packet containing animated WebP.

This is the 1st patch in preparation for using WebPAnimEncoder API for encoding
and muxing WebP images.

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

tls: Remove all the local polling loops

These aren't necessary any longer.

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

tls: Remove the nonblocking code

Since the underlying URLContext read functions are used,
they handle interruption, without having to handle it at
this level.

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

tls: Use custom IO to read from the URLContext

This avoids hijacking the fd, by reading using the normal
URLContext functions instead. This allowing reading data that has
been buffered in the underlying URLContext.

This avoids using the libraries own send functions that can
cause SIGPIPE.

The fd is still used for polling the lowlevel socket, for
waiting for retries.

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

doc/ffmpeg: basic documentation for -copy/ignore_unknown

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

avformat/mov: check result of avio_seek

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

ffmpeg: Support copying unknown streams

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

avcodec/mips: loongson fix bugs in mathops optimization

the incorrect UMULH, ff_sqrt, MAC64 and MLS64 to be optimized later, delete them just for now.

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

avutil/pixfmt: s/luma sample positions/horizontal luma sample positions/

Better to be explicit before someone thinks this could be the time axis ...

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

avutil/pixfmt: make luma sample positions even more explicit in the AVChromaLocation ASCII art

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

avutil/pixfmt: Clarify mpeg example comments for AVChromaLocation

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

avutil/pixfmt: clarify chroma location text further, as "first" is ambigous

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

avutil/pixfmt: Clarify that the ASCII art describes the location of the first chroma sample of AVChromaLocation

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

ffmpeg_opt: add missing space in error message

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

Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  lavc/qdrw: Do not fail decoding valid Quickdraw images.
  lavf/mov: Use AVCOL_SPC constants when checking color_space.
  lavf/mov: Write colour matrix "6" for color_space bt470bg.
  lavf/mkv: Only skip prores header if the packet is large enough.

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

ffmpeg_opt: fix the error message log level for the unsupported stream types

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

ffmpeg_opt: Give the user a hint on how to ignore unsupported streams

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

libvpx: add support for yuv440p and yuv440p10/12 encoding

Reviewed-by: James Zern <jzern@google.com>
Signed-off-by: James Almer <jamrial@gmail.com>

lavc/qdrw: Do not fail decoding valid Quickdraw images.

lavf/mov: Use AVCOL_SPC constants when checking color_space.

Suggested-by: Ronald Bultje

lavf/mov: Write colour matrix "6" for color_space bt470bg.

This matches the demuxer's behaviour.

ffmpeg: support ignoring unsupported mapped streams

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

lavf/mkv: Only skip prores header if the packet is large enough.

Fixes a possible endless loop.

Merge commit '3efe0393e4f0eaa27bac8833edbd7d3cff4704e1'

* commit '3efe0393e4f0eaa27bac8833edbd7d3cff4704e1':
  hevc: make avcodec_decode_video2() fail if get_format() fails

Conflicts:
libavcodec/hevc.c

See: cc5e4bb48476a89cc8ce0c41bc2bd2e8fda9b37c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

nutdec: abort if EOF is reached in decode_info_header/read_sm_data

These loops can take a lot of time if count is very large.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

avcodec/vmnc: Add back adapted comment about 24bit

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

Merge commit '7046bd9bc9ce04521edf453c9b603d84d69c7512'

* commit '7046bd9bc9ce04521edf453c9b603d84d69c7512':
  lavfi: Move avcodec header to the only filter needing it

Conflicts:
libavfilter/avfilter.h

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

nutdec: stop skipping bytes at EOF

This can unnecessarily waste a lot of time.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

nutdec: fix infinite resync loops

nut->last_syncpoint_pos doesn't necessarily change between resync
attempts, so find_any_startcode can return the same startcode again.

Thus remember where the last resync happened and don't try to resync
before that.

This can't be done locally in nut_read_packet, because this wouldn't
prevent infinite resync loops, where after the resync a packet is
returned and while reading a following packet the resync happens again.

Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

avcodec/vmnc: Simplify "24bit" support

This also makes the code more robust, removing potential out of
array writes.

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

Merge commit 'eafbc6716cede6d4a652f8bedf82f2901c68d06d'

* commit 'eafbc6716cede6d4a652f8bedf82f2901c68d06d':
  vmnc: Delay pixel size check

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

avcodec/hevc: Remove unused variable

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

configure: add cpuflags for loongson3 series cpu

Signed-off-by: ZhouXiaoyong <zhouxiaoyong@loongson.cn>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/nutdec: Fix recovery when immedeately after seeking a failure happens

Found-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/nutdec: Return error on EOF from get_str()

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

fate: Add fate-mathops test

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

avcodec: add mathops test

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

lavc/vmnc: Fix 32bit colour-space, there is no transparency.

configure: disable mipsfpu for loongson3

MIPSFPU optimization does't support FATE correctly on Loongson-3.

Signed-off-by: ZhouXiaoyong <zhouxiaoyong@loongson.cn>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

doc/encoders: add flac

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

Fix movtext crashes caused due to lack of proper bounds checking

Signed-off-by: Niklesh <niklesh.lalwani@iitb.ac.in>

avcodec/flacenc: Support Multi dimensional quantization

Now with exact bit computations if exact_rice_parameters is enabled

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

hevc: make avcodec_decode_video2() fail if get_format() fails

Personally, I need the decoder to back out if get_format() returns no
usable pixel format. This didn't work because the error code was not
propagated down the call chain. This in turn happened because the
variable declaration removed in this patch shadowed the variable, whose
value is returned at the end of the function. Consequently, failures of
decode_nal_unit() were ignored in this place.

Reviewed-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

lavfi: Move avcodec header to the only filter needing it

af_ashowinfo, due to the enum AVAudioServiceType use.

vmnc: Delay pixel size check

Some clients incorrectly set 24 as bits_per_coded_sample, while
the actual value is preserved in one of the codec headers.
In order to work around this, delay the check until decode_frame().

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

avcodec/flacenc: Mark pointers/array arguments const which are not changed

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

avcodec/flacenc: Simplify md5 calculation code by using AV_WL24()

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

avutil/pixfmt: Improve ascii art showing the meaning of the AVChromaLocation values

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

avcodec/flacenc: Move udata and sums to FlacSubframe

This significantly reduces the amount of stack space needed and
also permits to simply copy the rice context again without speed
penalty

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

fate: Add test for -exact_rice_parameters 1

avcodec/flacenc: Support calculating rice parameters exactly

Some files benefit by about 0.3% from this, and speedwise its ok
other files do not benefit and encode to the same size

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

avcodec/flacenc: Do not copy unused udata array -> 5x faster calc_rice_params()

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

avcodec/golomb: Remove disabled and broken code

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

avcodec/mss2: use < 0 instead of != 0 to check for error of vlc initialization

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

ffmpeg_opt: Compensate for DTS/PTS difference in seeking when its based on DTS

Fixes Ticket4554

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

libavcodec/x265: detect csps in libx265_encode_init_csp()

Without this change, if you link with an 8bit libx265 and try to specify
a 10bit input color space via:

  ffmpeg -i in.mov -c:v libx265 -pix_fmt yuv420p10le out.mp4

It will error with:

  Incompatible pixel format 'yuv420p10le' for codec 'libx265',
  auto-selecting format 'yuv420p'

With this fix, it will learn if a 10bit libx265 is available at startup,
and thus allow 10bit input color spaces.

Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

avcodec/snow_dwt: Remove ff_ prefix from ff_spatial_idwt_init() and ff_spatial_idwt_slice()

They are only used once in the file in which they are defined

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

avcodec/hevc_cabac: Rename ff_hevc_transform_skip_flag_decode() to hevc_transform_skip_flag_decode()

The function is static and used once in the file its defined in

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

avfilter/avfiltergraph: Rename ff_avfilter_graph_config_pointers to graph_config_pointers.

The function is static and only used once in the file its defined in.

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

avformat/mxfenc: Set horizontal chroma subsample value from pixel format if available

Reviewed-by: tim nicholson <nichot20@yahoo.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/mxfenc: Set the component depth from the pixel format if available

Reviewed-by: tim nicholson <nichot20@yahoo.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge remote-tracking branch 'rbultje/vp9-bugfixes'

* rbultje/vp9-bugfixes:
  vp9: match another find_ref_mvs() bug in libvpx.
  vp9: fix scaled motion vector clipping for sub8x8 blocks.
  vp9: improve signbias check.
  vp9: don't allow compound references if error_resilience is enabled.
  vp9: clamp segmented lflvl before applying ref/mode deltas.
  vp9: reset loopfilter mode/ref deltas on keyframe.
  vp9: fix crash when playing back 440/440 content with width%64<56.
  vp9: extend loopfilter workaround for vp9 h/v mix-up to work for 422.
  vp9: clip motion vectors in the same way as libvpx does.
  vp9: set skip flag if the block had no coded coefficients.
  vp9: apply mv scaling workaround only when subsampling is enabled.
  vp9: read all 4x4 blocks in sub8x8 blocks individually with scalability.
  vp9: fix segmentation map referencing upon framesize change.
  vp9: disable more pmulhrsw optimizations in idct16/32.
  vp9: disable all pmulhrsw in 8/16 iadst x86 optimizations.

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

cmdutils: Fix sign error in display matrix auto-rotation code

This makes the sample from Ticket4560 behave consistently with either branch

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

ffmpeg: Do not copy the display matrix if rotation meta-data is manually added

Fixes Ticket4560

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

avcodec/golomb: fix reading huge signed rice golomb values

No testcase is known, nor any case where such huge values would occur

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

avcodec/golomb: get_ur_golomb_jpegls: Fix reading huge k values

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

avformat/hlsenc: do not append an endlist tag when the stream ends

Reviewed-by: Thomas Volkert <silvo@gmx.net>

avformat/hlsenc: Add hls flag for starting a playlist with  a discontinuity on startup

Reviewed-by: Thomas Volkert <silvo@gmx.net>

avformat/hlsenc: Add hls flag for rounding m3u8 durations to whole numbers, problems with floats on some devices

Reviewed-by: Thomas Volkert <silvo@gmx.net>

avcodec/flacdec: Attempt to auto-detect old buggy flac

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

lavc/vc1: Never decode vc1 as gray if gray decoding was not enabled.

lavf/mpeg: Do not detect unknown audio in Hikvision streams as alaw.