There's no benefit from using blendps here except on CPUs with AVX, where
it's faster than shufps according to Intel's documentation.
As such, rename the sse4 functions to sse/sse2 and use shufps instead.
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>

Reviewed-by: Lou Logan <lou@lrcd.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '199d9f99':
  mjpegdec: fix undefined shift

Conflicts:
	libavcodec/mjpegdec.c

See: b4329605Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'ac4a5e3a':
  pthreads_frame: Do not leak on failure path

See: 11679e1bMerged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '5d29efe4':
  mpeg12dec: simplify context duplication

Not merged, theres no point in copying data and afterwards zeroing it
Also zeroing is not correct on its own
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '37b3361e':
  mpeg12enc: factor out check in encode_dc
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '0a666470':
  mpegvideo_enc: factor out denominator and explicitly cast operands

Conflicts:
	libavcodec/mpegvideo_enc.c

See: c753b56bMerged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'e0a1d0a2':
  mpegvideo_enc: rework direct mode check

Conflicts:
	libavcodec/mpegvideo_enc.c

See: ad985671Merged-by: Michael Niedermayer <michaelni@gmx.at>

Add a comment to explain the code.

CC: libav-stable@libav.org
Bug-Id: CID 1194388

CC: libav-stable@libav.org
Bug-Id: CID 1135767
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

CC: libav-stable@libav.org
Bug-Id: CID 717453 / CID 717454 / CID 717915

Makes coverity less confused and the code more readable.

CC: libav-stable@libav.org
Bug-Id: CID 751744

CC: libav-stable@libav.org
Bug-Id: CID 608053

Remove stray semicolon and share codepaths.

CC: libav-stable@libav.org
Bug-Id: CID 991857

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

We now use 'pixelformat' for V4L2_PIX_FMT_* (as they do in v4l2
documentation) and 'pix_fmt' for AVPixelFormat.

No functional change in the code.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

No testcase available but this seems more correct
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

Fixes "warning: passing argument 1 of avpriv_split_xiph_headers discards const qualifier from pointer target type"
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '05e59135':
  nutdec: do not set has_b_frames

Not merged, this change is not correct
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'acc897e6':
  lavc: make avpriv_flac_is_extradata_valid() private on the next bump
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'e839de0f':
  oggenc: accept only STREAMINFO extradata
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'c070a875':
  lavc: make avpriv_flac_parse_streaminfo() private on the next bump
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '7784f477':
  lavf: stop using avpriv_flac_parse_streaminfo()

Conflicts:
	libavcodec/Makefile
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '56dc46a1':
  riffenc: do not fall back on AVCodecContext.frame_size for MP3
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '91e8d2eb':
  lavf: use the format context strict_std_compliance instead of the codec one

Conflicts:
	libavformat/mux.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

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

* commit '2f3fadfb':
  lavc,lavf: switch to the new vorbis parse API

Conflicts:
	libavformat/oggparsevorbis.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

The other functions where changed in the previous merge
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '5e80fb7f':
  lavc: add a public API for parsing vorbis packets.

Conflicts:
	doc/APIchanges
	libavcodec/Makefile
	libavcodec/version.h
	libavcodec/vorbis_parser.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '6896f95b':
  vorbis_parser: add an AV prefix to VorbisParseContext

Conflicts:
	libavcodec/vorbis_parser.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '87479264':
  vorbis_parser: use a dedicated AVClass for logging

Conflicts:
	libavcodec/vorbis_parser.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

It is not supposed to be set by demuxers.

The reasoning is the same as for
0097cbea.

The only parameters needed by the demuxers are the sample rate and sample
count, which can be trivially extracted manually, without resorting to
an avpriv function.