Found-by-reviewing: CID1419833 Untrusted loop bound

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: CID1418336 Logically dead code

Sponsored-by: Sovereign Tech Fund
Reviewed-by: Timo Rothenpieler <timo@rothenpieler.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: CID1403238 Uninitialized pointer read
Fixes: CID1403239 Uninitialized pointer read

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: CID1403227 Division or modulo by float zero

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Sponsored-by: Sovereign Tech Fund
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This is neccesary on WSL, and has no averse effects in normal
environments.

Travis is no longer relevant for attempting to run CI jobs in our
setup.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>

The extradata is generated by encoding a dummy frame, then reset
the encoder state by mediacodec flush(). It only works for pixel
format other than AV_PIX_FMT_MEDIACODEC, since I'm not sure how
to create a dummy frame safely with AV_PIX_FMT_MEDIACODEC.
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>

Drop support of Android version before 5.0.

AImage_delete is introduced in API level 24, while AMediaFormat_new
is introduced in API level 21. We only need API level 21 to support
NDK mediacodec. This change doesn't break or change of
android_camera_indev since camera2ndk still needs API level 24.

The code was written in 2012, but seems to have been broken
for just as long. Compilation is broken on every MIPS/MIPS64
system with an FPU (which the code depends on).

The fixed decoder derives the values from floats anyway.

Unfortunately, although it's a purely decode function, it does
need to be templated.

All tables now initialized by aac/aacdec_fixed|float

Small cleanup to reduce number of arguments.

The function is called only internally in DSP, so we do not
need to expose it.

apply_ltp on MIPS uses this function, but due to the function
being just a glue function with no real optimizations,
duplicate it there.

Preparation to move all table init and support windowing functions.