This work is sponsored by, and copyright, Google.

Previously all subpartitions except the eob=1 (DC) case ran with
the same runtime:

                                     Cortex A7       A8       A9      A53
vp9_inv_dct_dct_16x16_sub16_add_neon:   3188.1   2435.4   2499.0   1969.0
vp9_inv_dct_dct_32x32_sub32_add_neon:  18531.7  16582.3  14207.6  12000.3

By skipping individual 4x16 or 4x32 pixel slices in the first pass,
we reduce the runtime of these functions like this:

vp9_inv_dct_dct_16x16_sub1_add_neon:     274.6    189.5    211.7    235.8
vp9_inv_dct_dct_16x16_sub2_add_neon:    2064.0   1534.8   1719.4   1248.7
vp9_inv_dct_dct_16x16_sub4_add_neon:    2135.0   1477.2   1736.3   1249.5
vp9_inv_dct_dct_16x16_sub8_add_neon:    2446.7   1828.7   1993.6   1494.7
vp9_inv_dct_dct_16x16_sub12_add_neon:   2832.4   2118.3   2266.5   1735.1
vp9_inv_dct_dct_16x16_sub16_add_neon:   3211.7   2475.3   2523.5   1983.1
vp9_inv_dct_dct_32x32_sub1_add_neon:     756.2    456.7    862.0    553.9
vp9_inv_dct_dct_32x32_sub2_add_neon:   10682.2   8190.4   8539.2   6762.5
vp9_inv_dct_dct_32x32_sub4_add_neon:   10813.5   8014.9   8518.3   6762.8
vp9_inv_dct_dct_32x32_sub8_add_neon:   11859.6   9313.0   9347.4   7514.5
vp9_inv_dct_dct_32x32_sub12_add_neon:  12946.6  10752.4  10192.2   8280.2
vp9_inv_dct_dct_32x32_sub16_add_neon:  14074.6  11946.5  11001.4   9008.6
vp9_inv_dct_dct_32x32_sub20_add_neon:  15269.9  13662.7  11816.1   9762.6
vp9_inv_dct_dct_32x32_sub24_add_neon:  16327.9  14940.1  12626.7  10516.0
vp9_inv_dct_dct_32x32_sub28_add_neon:  17462.7  15776.1  13446.2  11264.7
vp9_inv_dct_dct_32x32_sub32_add_neon:  18575.5  17157.0  14249.3  12015.1

I.e. in general a very minor overhead for the full subpartition case due
to the additional loads and cmps, but a significant speedup for the cases
when we only need to process a small part of the actual input data.

In common VP9 content in a few inspected clips, 70-90% of the non-dc-only
16x16 and 32x32 IDCTs only have nonzero coefficients in the upper left
8x8 or 16x16 subpartitions respectively.
Signed-off-by: Martin Storsjö <martin@martin.st>

This avoids reloading them if they haven't been clobbered, if the
first pass also was idct.

This is similar to what was done in the aarch64 version.
Signed-off-by: Martin Storsjö <martin@martin.st>

before:

time ./avconv -v 0 -nostats -threads 1 -i sintel_vp9_500kbps.webm -f null -
real    0m11.125s
user    0m11.059s
sys     0m0.050s

time ./avconv -v 0 -nostats -threads 1 -i sintel_vp9_500kbps.webm -f null -
real    0m10.944s
user    0m10.819s
sys     0m0.064s

after:

time ./avconv -v 0 -nostats -threads 1 -i sintel_vp9_500kbps.webm -f null -
real    0m8.153s
user    0m8.034s
sys     0m0.050s

time ./avconv -v 0 -nostats -threads 1 -i sintel_vp9_500kbps.webm -f null -
real    0m8.038s
user    0m7.980s
sys     0m0.039s
Signed-off-by: Martin Storsjö <martin@martin.st>

Fixes a number of related warnings.

Fixes AAC AudioSpecificConfig passthrough.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

This fixes a heap-buffer-overflow in ff_er_frame_end when decoding mss2
with coded_width/coded_height larger than width/height.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Use the correct timebase.

CC: libav-stable@libav.org

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

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

GnuTLS in combination with gcrypt has been deprecated since 2010.

Also add a missing avcodec.h #include in the movie filter.

The warning has false positives but our asm does not trigger it. For
new code false positives can only be avoided by changing the register
allocation.

This disables warnings about potentially uninitialized local pointer
variables.  Disabling the warning is in line with what we do for gcc.

This eliminates a handful of warnings at every inclusion of the header.

These functions are not available on mingw32ce.
Signed-off-by: Diego Biurrun <diego@biurrun.de>

The rtmpdh code can use crypto libraries which may require
a process global init. (gcrypt is one of the libraries
where the rtmpdh test code can fail if global init hasn't been
done, depending on gcrypt version.)
Signed-off-by: Martin Storsjö <martin@martin.st>

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