avcodec/bitstream: Assert that there is enough space left in avpriv_copy_bits()

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

avcodec/put_bits: Assert that there is enough space left in skip_put_bytes()

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

avcodec/mpegvideo_enc: Update the buffer size as more slices are merged

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

avcodec/put_bits: Update size_in_bits in set_put_bits_buffer_size()

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

avformat/mov: Mark avio context of decompressed atoms as seekable

Fixes Ticket4329

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

avcodec/libutvideoenc: Fix memleak

Fixes: CID1257657
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libdcadec: search for frames that start late in a packet

Based on commit 4ae15605f6298d8369a1f1374596b52a3839c703

Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/ituh263enc: Pass PutBitContext into h263p_encode_umotion() instead of MpegEncContext

This avoids the need to dereference MpegEncContext->pb if it is
already available outside h263p_encode_umotion()

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

avcodec: Pass PutBitContext into ff_h263_encode_motion() instead of MpegEncContext

This avoids the need to dereference MpegEncContext->pb if it is
already available outside ff_h263_encode_motion()

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

avcodec/h263: Remove unused argument of h263_get_motion_length()

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

avcodec/mpeg4video: Reorder operations to reduce accesses to err_recognition

About 9 cpu cycle faster mpeg4_decode_mb()

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

mov: always check avio_read return value

If avio_read fails, the buffer can contain uninitialized data.

This fixes 'Conditional jump or move depends on uninitialised value(s)'
valgrind warnings.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

mov: fix two memleaks

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

mov: abort on EOF in ff_mov_read_chan

Otherwise the loop can take a lot of time if num_descr is very large.

Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

avformat/movenc: Remove float use from rgb_to_yuv()

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

avformat/swfenc: Remove another unneeded float computation

fewer chances for rounding differences between platforms is better

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

avformat/swfenc: Remove unneeded floats

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

avformat/avienc: Avoid float usage

reduces risk for rounding differences between platforms

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

avformat/4xm: Change fps to AVRational

This fixes the video timebase as well

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

avcodec/y41pdec: Avoid using float for size test

Floats are not bitexact

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

libwebp: simplify AVCodec.close functions

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

configure: simplify libwebp checks

The libwebpmux pkg-config file already has an explicit dependecy on libwebp >= 0.2.0.
Also remove the warning and silently disable the anim encoder when libwebpmux is not new enough.
This is more in line with other library components, like libvpx-vp9

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

nutdec: fix various memleaks on failure

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

avcodec/dcadec: Search and decode frame in case it starts later in a packet

This fixes decoding the first frame of some dts files

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

avformat/wavdec: Increase dts packet threshold to fix more misdetections

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

avformat/wavdec: Increase probe_packets limit

Fixes DTS detection of b2429e5ba9.dts

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

nutdec: always check the get_str return value

If it fails, the buffers can be (partially) uninitialized.

This fixes 'Conditional jump or move depends on uninitialised value(s)'
valgrind warnings.

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

libwebp: use a separate AVClass for each encoder

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

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.