Timothy B. Terriberry authored 9 years ago and Jean-Marc Valin committed 9 years ago

This library is linked statically with libopus.so, so nothing
 changes on an installed system.
This merely simplifies linking in the unit tests.
Based in part on a patch originally by Viswanath Puttagunta
 <viswanath.puttagunta@linaro.org>.

Timothy B. Terriberry authored 9 years ago and Jean-Marc Valin committed 9 years ago

This is needed for the SMALL_DIV_TABLE constants added in commit
 ec5d01cb.

Rhishikesh Agashe authored 9 years ago and Jean-Marc Valin committed 9 years ago

Brings MIPS in sync with the ARM/SSE optimizations that added "arch" parameters.

Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>

Mark Harris authored 9 years ago and Jean-Marc Valin committed 9 years ago

Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>

Mark Harris authored 9 years ago and Jean-Marc Valin committed 9 years ago

Fix out-of-bounds memory read in multichannel surround analysis
with float input that contains NaNs.  Found by afl-fuzz.

Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>

autoreconf looks for ACLOCAL_*FLAGS in Makefile.am and will
pass that on when it invokes aclocal. Furthermore, setting
a local like this doesn't make it available to subcommands,
so the line has no effect.

Jonathan Lennox authored 9 years ago and Jean-Marc Valin committed 9 years ago

This patch lets you pass paths for opus_demo and opus_compare to the
run_vectors.sh script.

The motivation for this was for my aarch64 patches (forthcoming),
which I've been testing under qemu.  I want to run an emulated
opus_demo, but a native opus_compare, so the script completes in a
reasonable amount of time.

Jonathan Lennox authored 9 years ago and Jean-Marc Valin committed 9 years ago

This patch adds a macro abstracting the condition under which the silk
math macros use opus_int64-based calculations rather than opus_int32.
No substantive change, but will make it easier to adjust if additional
such platforms are found in the future.

Jonathan Lennox authored 9 years ago and Jean-Marc Valin committed 9 years ago

Use ProjectReference rather than AdditionalDependencies for test programs, so build dependencies are right.

Actually add source code to opus_demo project, and fix its include paths.

Jonathan Lennox authored 9 years ago and Jean-Marc Valin committed 9 years ago

Enable x86 intrinsics when building in floating-point mode.
Support SSE as an arch value.
Use RTCD to conditionally enable existing floating-point Celt SSE code.
Call functions directly (without RTCD) when their architecture can be presumed.
Use SSE4.1 intrinsics optimized code for Silk even in floating-point mode.

Jonathan Lennox authored 9 years ago and Jean-Marc Valin committed 9 years ago

Move SSE2 and SSE4.1 intrinsics functions to separate files, to be compiled with appropriate compiler flags. Otherwise, compilers are allowed to take advantage of (e.g.) -msse4.1 to generate code that uses SSE4.1 instructions, even when no SSE4.1 intrinsics are explicitly used in the source.

Jonathan Lennox authored 9 years ago and Jean-Marc Valin committed 9 years ago

In optimized mode, don't force Clang to use explicit load/store for _mm_cvtepi16_epi32, only for _mm_cvtepi8_epi32. Adjust comment accordingly.

Jonathan Lennox authored 9 years ago and Jean-Marc Valin committed 9 years ago

Actually try to compile intrinsics rather than using the output of --help.
Allow caller of configure script to set custom compiler options to enable intrinsics.
Detect when intrinsics are always available, without needing special compiler options.
Make naming of #defines for detected intrinsics support more systematic.

Koen Vos authored 9 years ago and Jean-Marc Valin committed 9 years ago

Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>

Koen Vos authored 9 years ago and Jean-Marc Valin committed 9 years ago

The bug was caused by an improper feedback of the per-frame bitrate, causing
the bitrate to jump up and down from frame to frame, within a packet.
The patch avoids this, and also gives a slight improvement in general for
multi-frame packets, even without FEC.

Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>

Mark Harris authored 9 years ago and Jean-Marc Valin committed 9 years ago

This allows the libopus source files to be compiled with a C++ compiler,
by ensuring that the "extern const MLP net" declaration is visible at
the point of the "const MLP net" in src/mlp_data.c.  Otherwise it will
default to static linkage in C++, resulting in an undefined symbol.

Note that if compiled with a C++ compiler the symbols will be mangled,
so don't do that if you want to be able to call it from C code or run
the tests (which still require a C compiler).

Mark Harris authored 9 years ago and Timothy B. Terriberry committed 9 years ago

Signed-off-by: Timothy B. Terriberry <tterribe@xiph.org>

Jonathan Lennox authored 9 years ago and Timothy B. Terriberry committed 9 years ago

Simplify and generalize implementation of align(). Should be very efficient on sensible platforms, and correct everywhere.

Based on max size of void*, opus_int32 and opus_val32, rounded up to the
nearest power of two

This version resolves some issues with the packet size limits
 raised by Mark Harris.

We use at most 16 when using fixed-point (for the API or the
 internal implementation), but we didn't tell anyone this.

Keep a copy of the release tarball sha-256 checksums in the
repository for reference. Having a copy with the code in
distributed version control adds a verification path.

This should match http://downloads.xiph.org/releases/opus/SHA256SUMS.txt

1. Removed an inappropriate normative MAY.
2. Gave an explicit range of sample rates deemed to be "non-crazy".
3. Give explicit guidance on packet sizes that SHOULD and MAY be rejected.

We already needed these macros for gcc with optimizations disabled,
 but it appears clang needs them all the time.

Thanks to Jonathan Lennox for the report.

This way we won't break this by accident.