Jonathan Lennox authored 9 years ago and Timothy B. Terriberry committed 8 years ago

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

Jonathan Lennox authored 9 years ago and Timothy B. Terriberry committed 8 years ago

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

Jonathan Lennox authored 9 years ago and Timothy B. Terriberry committed 8 years ago

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

Jonathan Lennox authored 9 years ago and Timothy B. Terriberry committed 8 years ago

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

Jonathan Lennox authored 9 years ago and Timothy B. Terriberry committed 8 years ago

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

Jonathan Lennox authored 9 years ago and Timothy B. Terriberry committed 8 years ago

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

Jonathan Lennox authored 9 years ago and Timothy B. Terriberry committed 8 years ago

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

Coverity warns about the possibly-overlappying memcpy in this
block, presumedly because it can't prove predictLPCOrder <= MAX_LPC_ORDER
here. Add an assert to make the intent clear in code as well
as in the comment.

Reported by Durandal.

We just explicitly allow the overflow with silk_MLA_ovflw() since the result
seems to be correct because the overflows cancel each other.

Felicia Lim authored 8 years ago and Jean-Marc Valin committed 8 years ago

Slightly modified by Jean-Marc Valin

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

Felicia Lim authored 8 years ago and Jean-Marc Valin committed 8 years ago

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

Felicia Lim authored 9 years ago and Jean-Marc Valin committed 9 years ago

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

Avoids accidental name collisions

Radu Velea 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

Fixes build failure on platforms with MAY_HAVE_SSE4_1 (but not PRESUME_SSE4_1) with --enable-intrinsics.

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>

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

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.

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>

During review of c95c9a04, I replaced a call to
 _mm_cvtepi8_epi32() with the OP_CVTEPI16_EPI32_M64() macro (note
 the 16 instead of 8).
Make a separate OP_CVTEPI8_EPI32_M32() macro and use that instead.

Thaks to Wei Zhou for the report.

There is also no trailing whitespace.

xiangmingzhu authored 10 years ago and Jean-Marc Valin committed 10 years ago

1. Only for fixed point on x86 platform (32bit and 64bit, uses SIMD
   intrinsics up to SSE4.2)
2. Use "configure --enable-fixed-point --enable-intrinsics" to enable
   optimization, default is disabled.
3. Official test cases are verified and passed.

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

Marcello Caramma (mcaramma) authored 10 years ago and Jean-Marc Valin committed 10 years ago

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

Koen Vos authored 10 years ago and Jean-Marc Valin committed 10 years ago

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

Koen Vos authored 10 years ago and Jean-Marc Valin committed 10 years ago

- Bug fix: the CNG synthesis filter output consisted of only the prediction
  values, now added the input to that.
- CNG excitation level now takes into account the level from the PLC (since
  both PLC and CNG can be active at the same time).
- CNG is now called before PLC_glue() to smoothen the transition out of CNG.

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

Rhishikesh Agashe authored 10 years ago and Jean-Marc Valin committed 10 years ago

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

When an overflow happened in silk_sum_sqr_shift(), the sample pair causing
the overflow would be counted twice. This would lead to the C0 in
silk_burg_modified() being too large and cause problems on loud, tonal
signals. Thanks to Marcello Caramma for tracking down the problem.

maks authored 11 years ago and Jean-Marc Valin committed 11 years ago

The code was wrong, but did not have any impact on user-visible behaviour
because all it did was change an internal-only error code.

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

Also minor C89 fix for the previous commit

This saves 640 bytes on the peak stack usage.