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>

The dependency was added conditional to a variable that is always defined,
so it is safe to add it directly.

config.mak is no longer included multiple times; the guards are pointless.

Calling Make from subdirectories is not supported and config.mak has
multiple inclusion guards anyway, so the top-level include is enough.

It is intentionally left in to allow adding 3GPP-style windowing in the future.
Marking it av_unused silences an annoying unused function warning.

The C standard specifies that zero-length format strings are allowed.

For a unicast udp stream to localhost:1234, currently
ffplay udp://:1234?localport=1234
works, but
ffplay udp://:1234
doesn't work.
Signed-off-by: Martin Storsjö <martin@martin.st>

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

This helps catching cases where the format string doesn't
match what is passed in, or injection bugs where user data
is passed in as format string.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

These CPUs are thumb-only and thus require this option.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This eliminates a warning about a set-but-unused variable.

Setting SRC_PATH to "." when building in-tree removes the need
for a quoted version of the source path since out-of-tree builds
are not possible if the pathname contains spaces.
Signed-off-by: Mans Rullgard <mans@mansr.com>

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

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

Show the invalid string in the error message.

While at it also prefer "Could not" over "Couldn't", plain forms are
preferred over contractions (simplify readability, especially for non
English-savvy people).
Signed-off-by: Anton Khirnov <anton@khirnov.net>

The variable is used for containing the parsed value of framerate,
using a lexically consistent name eases readability/understanding.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

The variable is used for containing the parsed value of framerate,
using a lexically consistent name eases readability/understanding.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

The variable is used for containing the parsed value of framerate,
using a lexically consistent name eases readability/understanding.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

The variable is used for containing the parsed value of s1->framerate,
using a lexically consistent name ease readability/understanding.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Currently quad, 5.0, 5.1 and 7.1 are implemented.
Implementing support for other formats/layouts and capture should be
straightforward.

5.0 and 7.1 support by Carl Eugen Hoyos.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Specifically, f32, f64, s32, s24, a-law and mu-law.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

This allows overriding the default optimisation flags selected by
configure.
Signed-off-by: Mans Rullgard <mans@mansr.com>