rtmp: Allocate the prev_pkt arrays dynamically

Normally, all channel ids are between 0 and 10, while they in
uncommon cases can have values up to 64k.

This avoids allocating two arrays for up to 64k entries (at a total
of over 6 MB in size) each when most of them aren't used at all.

Signed-off-by: Martin Storsjö <martin@martin.st>
avresample/x86: Switch operand order for mulps

With the forthcoming VEX instruction emulation, mulps
must have only the third operand point to memory, as
this is what vmulps expects.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
x86inc: Use VEX-encoded instructions in AVX functions

Automatically use VEX-encoding in AVX/AVX2/XOP/FMA3/FMA4
functions for all instructions that exists in a VEX-encoded
version.

This change makes it easier to extend existing code to use AVX2.

Also add support for AVX emulation of a few instructions that
were missing before.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
x86inc: Remove our FMA4 support

This is so we can sync to x264's version of FMA4 support.

This partialy reverts commit 79687079a97a039c325ab79d7a95920d800b791f.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
x86inc: FMA3/4 Support

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
x86: more AVX2 framework

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Merge commit '84a125c4c28f3e3e215d2e6c32f7f0ec43bbc04c'

* commit '84a125c4c28f3e3e215d2e6c32f7f0ec43bbc04c':
  rtmp: Allocate the prev_pkt arrays dynamically

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '15748773bf33c110e6e2e9526c7ba5478274c74c'

* commit '15748773bf33c110e6e2e9526c7ba5478274c74c':
  avresample/x86: Switch operand order for mulps

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'c108ba0175d4fc3a3253a8b0f782fbfb96ba5098'

* commit 'c108ba0175d4fc3a3253a8b0f782fbfb96ba5098':
  x86inc: Use VEX-encoded instructions in AVX functions

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '206895708ea2b464755d340e44501daf9a07c310'

* commit '206895708ea2b464755d340e44501daf9a07c310':
  x86inc: Remove our FMA4 support

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'c6908d6b4b377a04a5d055ba874bdbcf06c80497'

* commit 'c6908d6b4b377a04a5d055ba874bdbcf06c80497':
  x86inc: FMA3/4 Support

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  x86: more AVX2 framework

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Support H.264 fourcc UMSV.

Fixes ticket #3046.
lavc: Adding seek_preroll to AVCodecContext

seek_preroll field is added to the AVCodecContext struct. It indicates
the number of samples to be discarded whenever there is a discontinuity.
The minor version is bumped accordingly.

Signed-off-by: Vignesh Venkatasubramanian <vigneshv@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>