The 4-tap filters should only access one row/column before the
reference block.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit e0e46cae)

GCC 4.3 and later are more particular about signedness matching
in vector operations.  The operations under if(rangered) were
missing assignments and thus had no effect.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 381efba0)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 0ac8e2bf)

In the name of consistency:
put_byte           -> avio_w8
put_<type>         -> avio_w<type>
put_buffer         -> avio_write

put_nbyte will be made private
put_tag will be merged with avio_put_str
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 77eb5504)

(cherry picked from commit 78e2380a)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit b3db9cee)

In the name of consistency:
get_byte           -> avio_r8
get_<type>         -> avio_r<type>
get_buffer         -> avio_read

get_partial_buffer will be made private later

get_strz is left out becase I want to change it later to return
something useful.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit b7effd4e)

Merging these functions allows merging some loops, which makes the
results (particularly after SIMD optimizations) much faster.
(cherry picked from commit f8bed30d)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 8d9ac969)

(cherry picked from commit 484a337c)

Advantage is that it allows us to combine several loops into a single
one, and these can eventually be merged into the IDCT itself. Also, it
allows us to remove vc1_put_block(), and makes CODEC_FLAG_GRAY faster.
(cherry picked from commit bbfd2e7a)

This ensures the tools are rebuilt when necessary.  Specifically,
lavfi-showfiltfmts was sometimes not rebuilt causing spurious test
failures.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 08df7f86)

lsf_r is an array of int16_t, not float.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 1efa772e)

This allows the CPU detection to work with assemblers not supporting
the xgetbv mnemonic.  These include clang and some BSD versions.

All AVX code will be written for yasm, where the main assembler
is not involved.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit ef669538)

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>

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

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

the following additions:
* support to anti-aliased glyph rendering
* support to UTF-8 text and Unicode chars rendering
* support for RGB packed formats
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Port fade filter from libavfilter soc repo, with minor fixes by
Stefano.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Move the color source code from vf_pad.c to vsrc_color.c.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Add drawutils.h and drawutils.c, and use them in the pad filter.
The new functions are going to be shared by other filters.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Update libavformat/version.h and doc/APIChanges after renaming
init_put_byte() and ByteIOContext to ffio_init_context() (private)
and AVIOContext, (public), and deprecating the originals.
(cherry picked from commit d2bbf82e)

init_put_byte should never be used outside of lavf, since
sizeof(AVIOContext) isn't part of public ABI.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit e731b8d8)

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit ae628ec1)

Advanced profile never uses "range reduction", so vc1_put_block() quite
literally just calls put_pixels_clamped() from vc1_decode_i_blocks_adv().
By inlining the function, we can prevent calling IDCT8x8 if
CODEC_FLAG_GRAY is set, and we don't have to scale the coeffs in the
[0,256] range, but can instead use put_signed_pixels_clamped().
(cherry picked from commit 70aa916e)

This adds configure and runtime checks for AVX support on x86 CPUs.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 87f1355f)

Allows playback of nonprimary audio streams in multiple bitrate sources,
such as mmsh://wmscr1.dr.dk/e02ch03mSigned-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 74d6871d)

Remove ff_vector128, it is identical to ff_pb_80.
(cherry picked from commit bf6fa732)

Patch discussed and taken from https://roundup.ffmpeg.org/issue2584
(cherry picked from commit 2bbec1ed)

With negative stride, the start of the edge_emu buffer should be pointing to
the last line, not the end of the buffer.
With positive stride, pointing to the end of the buffer was completely wrong.
(cherry picked from commit a89f4ca0)

(cherry picked from commit 9707f84f)

Also remove qscale_table code; this didn't make sense anyways as VP3 doesn't
use an MPEG-like quantizer scale.
(cherry picked from commit 902685b8)

regression introduced in 1762d9ceSigned-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 351423ae)

(cherry picked from commit ed040f35)

This one didn't actually need to be initialized.
(cherry picked from commit 891b1f15)

On some versions of gcc, these weren't always getting inlined due to hitting
the inline cap limit in some files.  This is generally bad, as most of these
functions are smaller inlined than not.
(cherry picked from commit eb3755a5)