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Benjamin, Thanks for the prompt response. Are there other recommended methods to verify encoder implementations? Regards, Chris From: benjamin.m.schwartz at gmail.com [mailto:benjamin.m.schwartz at gmail.com] On Behalf Of Benjamin Schwartz Sent: Sunday, November 10, 2013 1:53 PM To: Wang, Chris Cc: opus at xiph.org Subject: Re: [opus] Questions Regarding Opus Test Vectors On Sun, Nov 10,

Tim, et al, I have run into several problems with V0.8.0. I will address them seperately. 1. My compiler is complaining about the following code in celt.c which seems to define metric first as celt_word32, then as celt_word16. Am I mis-interpreting something? ?? VARDECL(celt_word32, metric); ?? ALLOC(metric, len, celt_word16); Thx MikeH -------------- next part -------------- An HTML attachment

...then use opus_demo to decode the files. It will check to make sure the final range coder state of the decoder matches. With high probability this will tell you if the decoder is decoding the same bitstream symbols the encoder thought it encoded. Slightly more complicated is to have the encoder resynthesize the coded audio from its internal state as it encodes, and compare that with what the decoder produces. In libopus this behavior can be enabled via the RESYNTH #define, at least for the CELT layer. http://www.ietf.org/proceedings/80/slides/codec-4.pdf covers a number of additional softwar...

...CELTMode *m, int i, celt_norm *X, c void quant_all_bands(int encode, const CELTMode *m, int start, int end, celt_norm *_X, celt_norm *_Y, unsigned char *collapse_masks, const celt_ener *bandE, int *pulses, int shortBlocks, int spread, int dual_stereo, int intensity, int *tf_res, int resynth, - celt_int32 total_bits, celt_int32 balance, ec_ctx *ec, int LM, int codedBands, ec_uint32 *seed) + celt_int32 total_bits, celt_int32 balance, ec_ctx *ec, int LM, int codedBands, celt_uint32 *seed) { int i; celt_int32 remaining_bits; diff --git a/libcelt/bands.h b/libcelt/bands....

...LL; for (i=0;i<st->lpcSize;i++) st->mem_sw[i]=0; st->first=1; st->bounded_pitch = 1; /* Final signal synthesis from excitation */ iir_mem2(st->exc, st->interp_qlpc, st->frame, st->frameSize, st->lpcSize, st->mem_sp); #ifdef RESYNTH for (i=0;i<st->frameSize;i++) in[i]=st->frame[i]; #endif return 0; } /* LSP Quantization */ if (st->first) { for (i=0;i<st->lpcSize;i++) st->old_lsp[i] = st->lsp[i]; } /*Quantize LSPs*/ #if 1 /*0 for unquantized*/...

...l_inner_prod(Y, X, Y, N, &xp, &side, arch); /* Compensating for the mid normalization */ xp = MULT16_32_Q15(mid, xp); /* mid and side are in Q15, not Q14 like X and Y */ @@ -1348,7 +1348,7 @@ static unsigned quant_band_stereo(struct band_ctx *ctx, celt_norm *X, celt_norm if (resynth) { if (N!=2) - stereo_merge(X, Y, mid, N); + stereo_merge(X, Y, mid, N, ctx->arch); if (inv) { int j; diff --git a/celt/celt.c b/celt/celt.c index a610de4..40c62ce 100644 --- a/celt/celt.c +++ b/celt/celt.c @@ -89,10 +89,12 @@ int resampling_fac...

...l_inner_prod(Y, X, Y, N, &xp, &side, arch); /* Compensating for the mid normalization */ xp = MULT16_32_Q15(mid, xp); /* mid and side are in Q15, not Q14 like X and Y */ @@ -1348,7 +1348,7 @@ static unsigned quant_band_stereo(struct band_ctx *ctx, celt_norm *X, celt_norm if (resynth) { if (N!=2) - stereo_merge(X, Y, mid, N); + stereo_merge(X, Y, mid, N, ctx->arch); if (inv) { int j; diff --git a/celt/celt.c b/celt/celt.c index a610de4..40c62ce 100644 --- a/celt/celt.c +++ b/celt/celt.c @@ -89,10 +89,12 @@ int resampling_fac...

The attached patch cleans up Opus's x86 intrinsics configury. It: * Makes ?enable-intrinsics work with clang and other non-GCC compilers * Enables RTCD for the floating-point-mode SSE code in Celt. * Disables use of RTCD in cases where the compiler targets an instruction set by default. * Enables the SSE4.1 Silk optimizations that apply to the common parts of Silk when Opus is built in

Hi All, Since I continue to base my work on top of Jonathan's patch, and my previous Ne10 fft/ifft/mdct_forward/backward patches, I thought it would be better to just post all new patches as a patch series. Please let me know if anyone disagrees with this approach. You can see wip branch of all latest patches at https://git.linaro.org/people/viswanath.puttagunta/opus.git Branch:

Hi Timothy, As I mentioned earlier [1], I now fixed compile issues with fixed point and resubmitting the patch. I also have new patch that does intrinsics optimizations for celt_pitch_xcorr targetting aarch64. You can find my latest work-in-progress branch at [2] For reference, you can use the Ne10 pre-built libraries at [3] Note that I am working with Phil at ARM to get my patch at [4]

Hi All, As per Timothy's suggestion, disabling mdct_forward for fixed point. Only effects armv7,armv8: Extend fixed fft NE10 optimizations to mdct Rest of patches are same as in [1] For reference, latest wip code for opus is at [2] Still working with NE10 team at ARM to get corner cases of mdct_forward. Will update with another patch when issue in NE10 gets fixed. Regards, Vish [1]:

Hi All, Changes from RFC v2 [1] armv7,armv8: Extend fixed fft NE10 optimizations to mdct - Overflow issue fixed by Phil at ARM. Ne10 wip at [2]. Should be upstream soon. - So, re-enabled using fixed fft for mdct_forward which was disabled in RFCv2 armv7,armv8: Optimize fixed point fft using NE10 library - Thanks to Jonathan Lennox, fixed some build fixes on iOS and some copy-paste errors Rest

Hello Timothy / Jean-Marc / opus-dev, This patch series is follow up on work I posted on [1]. In addition to what was posted on [1], this patch series mainly integrates Fixed point FFT implementations in NE10 library into opus. You can view my opus wip code at [2]. Note that while I found some issues both with the NE10 library(fixed fft) and with Linaro toolchain (armv8 intrinsics), the work