This means that precision is retained when scaling between sample
formats with >8 bits per component (48bit RGB, 16bit grayscale,
9/10/16bit YUV).

GNU make 3.81 apparently does not support order-only prerequisites
with pattern rules, and thus fails to create the tools directory
if it is missing.  Naming the objects explicitly in the rule makes
it work properly.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Fixes draw_edges crashes with high-bit-depth 4:4:4 decoding.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

These blocks don't report audio stream parameters and they are not needed
for decoding.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

This was done to support gcc 2.95, which is an old legacy compiler
that fails to compile the current codebase anyway.

Choose band type (codebook) zero, count its bits, and mark the other
states as unnavigable.

Remove unused variables "flags" and "dstFormat" in yuv2packed1,
merge source rows per plane for yuv2packed[12], and make every
source argument int16_t (some where invalidly set to uint16_t).
This prevents stack pollution and is part of the Great Evil Plan
to simplify swscale.

This works through some non-obvious hacks in utils.c.

This is part of the Great Evil Plan to simplify swscale.

This is part of the Great Evil Plan to simplify swscale.

This will likely lead to a considerable performance boost,
since it removes a branch from the inner loop. Part of the
Great Evil Plan to simplify swscale.

This prevents a crash when converting to NV12/21 without the bitexact
flags enabled.

This avoids using function pointers for quite a few small functions, most of
which just call DSP functions.

They introduce too much complexity for very little benefit. The result is that
encoding will be more likely to fail at extremely low bitrates where quality
would be awful anyway.

This generates dependencies for the *-test.o files ensuring
rebuilds when necessary.
Signed-off-by: Mans Rullgard <mans@mansr.com>

These commands have the same form, and using a common macro allows
it to be used elsewhere without further duplication.
Signed-off-by: Mans Rullgard <mans@mansr.com>

2tap qpel isn't implemented yet for high bit depth, so it just breaks decoding.

As a nice sideeffect this fixes the following warning:
libavcodec/mpeg4videoenc.c:302:20: warning: variable ‘rl’ set but not used [-Wunused-but-set-variable]

when setting the -march flag.

This is to match gcc's {athlon64,k8,opteron}-sse3 -march flags.
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>

This avoids warnings about set-but-unused variables.

This silences warnings about pointer target sign mismatches as
already done for gcc with -Wno-pointer-sign.
Signed-off-by: Mans Rullgard <mans@mansr.com>