Only enable code using mips32/mips64 instructions if the compiler is targetting
this ISA. (integer madd and msub instructions aren't available in the
``canonical'' mips ISAs)

The __aeabi_memcpy functions are already defined in Android libc.
Redefining them to call memcpy will become recursive when clang/llvm
converts the memcpy call to __aeabi_memcpy.
With this change, we can enable clang/llvm by removing LOCAL_CLANG from Android.mk.

BUG: 12216385
Change-Id: I8b8b4ba7f3ff1e66f8110fc3b6356865a582c1d8

* commit '1c6ab7db':
  Use gcc for the AAC decoder

clang generates crashing code for this.

Change-Id: I90355d6735403290e7c0d93ff4854520b7b80f4a

* commit '66091e46':
  Fix checks for {Front,Side,Back}ElementIsCpe

* commit '84851b23':
  Move back to C++98.

{Front,Side,Back}ElementIsCpe is an array (per-channel). The check for
pPce->{Front,Side,Back}ElementIsCpe without an index checks the address
of the array, and will always evaluate to true. The elTagSce++
statements are unreachable.

Change-Id: If530371788a44038c500d6f9f7ac67681f77cc71

This code depends on narrowing hex literals to a signed long, which
trips -Wc++11-narrowing (the fix would be to explicitly cast each
value to signed).

Change-Id: I581a02ef0eeee5a2d95ce0ff2ec6f7ff26f3a074

The AAC_PCM_OUTPUT_CHANNELS option no longer exists under the
same name nor enum value any longer, and the AUDIO_CHANNEL_TYPE
enum has been changed in a way which may break users.

* commit 'd149516e':

* commit '7e464956':
  Move Clang only flags into LOCAL_CLANG_CPPFLAGS.

* commit '7e464956':
  Move Clang only flags into LOCAL_CLANG_CPPFLAGS.

Gcc does not recognize -Wno-pointer-bool-conversion.

Change-Id: Ib6ffa321fff1947b6a098244f7d67fdeb45c2b41

* commit '4803bf75':
  Ignore Clang warning on checking address of arrays.

BUG: 17356808
Change-Id: I464ffcfb3fc4f44ac8115f9ae98a8c46189b41cd

* commit '2decc778':
  [MIPSR6] Skip assembler code using MFHI/MFLO on mips32r6

This is a bug fix patch from Fraunhofer, amending/replacing/extending
the previous commit which only extended the table to 55 elements.
(In my previous fix, 55 seemed to be enough for the issue at hand at
least. A few of the coefficients had slightly different rounding than
what Fraunhofer had used though).

This will show up in AOSP in the next code drop as well.

Change-Id: I3dacd96cf9d5cf9c3d34d612ebb0456d64bc23bc

For sample rates >= 64 kHz with short blocks, the largest sfb
width is 36, which after grouping can be multiplied with 3,
ending up as 108. GetInvInt needs to be able to support
the largest grouped sfb width, divided by two (3 * 36 / 2 = 54).

This fixes VBR encoding with sample rates >= 64 kHz.

This is used for multichannel wave files.

Sox writes the RIFF header size as a very large number, instead
of as 0 as in libavformat.

fseek(SEEK_CUR) doesn't work for nonseekable streams (such
as pipes).

Only do this for skipping past small chunks; don't use it for
skipping past the actual data for non-streamed input.

This is required in order to read streamed wav files produced by
the libavformat wav muxer.