search for: shortblock

...52,13 +335,15 @@ void stereo_decision(const CELTMode *m, celt_norm_t * restrict X, int *stereo_mo /* Quantisation of the residual */ -void quant_bands(const CELTMode *m, celt_norm_t * restrict X, celt_norm_t *P, celt_mask_t *W, const celt_ener_t *bandE, const int *stereo_mode, int *pulses, int shortBlocks, int fold, int total_bits, ec_enc *enc) +void quant_bands(const CELTMode *m, celt_norm_t * restrict X, celt_norm_t *P, celt_mask_t *W, int pitch_used, celt_pgain_t *pgains, const celt_ener_t *bandE, const int *stereo_mode, int *pulses, int shortBlocks, int fold, int total_bits, ec_enc *enc) {...

...ide, celt_decode function. The "dec" structure is created at each function call and it's initialized with ec_dec_init function. The attribute "end_byte" is not initialized though. Decoding a file the behaviour is the following: decoding the first frame the variable "shortBlocks" is true and then transient_shift == 3 hence the function ec_dec_uint is executed. In this function the attribute "end_byte" is written first and read next. That's ok. The problem comes decoding the next frame. Since now "shortBlocks" is false, "end_byte&quot...

...nd, C, LM, st->arch); amp2Log2(mode, effEnd, end, bandE, bandLogE2, C); for (i=0;i<C*nbEBands;i++) bandLogE2[i] += HALF16(SHL16(LM, DB_SHIFT)); @@ -1615,7 +1615,7 @@ int celt_encode_with_ec(CELTEncoder * OPUS_RESTRICT st, const opus_val16 * pcm, compute_mdcts(mode, shortBlocks, in, freq, C, CC, LM, st->upsample, st->arch); if (CC==2&&C==1) tf_chan = 0; - compute_band_energies(mode, freq, bandE, effEnd, C, LM); + compute_band_energies(mode, freq, bandE, effEnd, C, LM, st->arch); if (st->lfe) { @@ -1739,7 +1739,7 @@ int celt_en...

...t performs poorly. I havn't had a chance to verify the mainline (network at home isn't working; System with good headphones isn't on net, and I've only sneakernetted the branch).. The gspi35_1 sounds like it's suffering from preecho. I changed the preecho threshold to make more shortblocks, but it sounds worse. I had believed that short blocks were fixed in hte branch.. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/

...4 --- a/celt/celt_encoder.c +++ b/celt/celt_encoder.c @@ -414,7 +414,8 @@ int patch_transient_decision(opus_val16 *newE, opus_val16 *oldE, int nbEBands, /** Apply window and compute the MDCT for all sub-frames and all channels in a frame */ static void compute_mdcts(const CELTMode *mode, int shortBlocks, celt_sig * OPUS_RESTRICT in, - celt_sig * OPUS_RESTRICT out, int C, int CC, int LM, int upsample) + celt_sig * OPUS_RESTRICT out, int C, int CC, int LM, int upsample, + int arch) { const int overlap = mode->overlap...

...4 --- a/celt/celt_encoder.c +++ b/celt/celt_encoder.c @@ -414,7 +414,8 @@ int patch_transient_decision(opus_val16 *newE, opus_val16 *oldE, int nbEBands, /** Apply window and compute the MDCT for all sub-frames and all channels in a frame */ static void compute_mdcts(const CELTMode *mode, int shortBlocks, celt_sig * OPUS_RESTRICT in, - celt_sig * OPUS_RESTRICT out, int C, int CC, int LM, int upsample) + celt_sig * OPUS_RESTRICT out, int C, int CC, int LM, int upsample, + int arch) { const int overlap = mode->overlap...

...4 --- a/celt/celt_encoder.c +++ b/celt/celt_encoder.c @@ -414,7 +414,8 @@ int patch_transient_decision(opus_val16 *newE, opus_val16 *oldE, int nbEBands, /** Apply window and compute the MDCT for all sub-frames and all channels in a frame */ static void compute_mdcts(const CELTMode *mode, int shortBlocks, celt_sig * OPUS_RESTRICT in, - celt_sig * OPUS_RESTRICT out, int C, int CC, int LM, int upsample) + celt_sig * OPUS_RESTRICT out, int C, int CC, int LM, int upsample, + int arch) { const int overlap = mode->overlap...

Changes from RFC PATCH v3 - Just rebased on tip - For all else, please see notes from RFC PATCH v3 at http://lists.xiph.org/pipermail/opus/2015-March/002902.html - latest wip opus tree/branch https://git.linaro.org/people/viswanath.puttagunta/Ne10.git branch: rfcv4_final_fft_ne10 Viswanath Puttagunta (1): armv7(float): Optimize encode usecase using NE10 library Makefile.am

Changes from RFC PATCH v1: - passing arch parameter explicitly - reduced stack usage by ~3.5K by using scaled NE10 fft version - moved all optimization array functions to arm_celt_map.c - Other cleanups pointed out by Timothy Phil, As you mentioned earlier, could you please address all compile and linker errors/warnings coming out of Ne10 library? You can find my working Ne10 repo at [1] You

Changes from RFC PATCH v2 - fixed compile issue when just compiling for --enable-intrinsics for ARMv7 without NE10 - Notes for NE10: - All compile/link warnings are now in upstream NE10 - Only patch pending upstream in NE10 is the one that needs to add -funsafe-math-optimizations for ARMv7 targets. - Phil Wang @ ARM is working on getting this fixed. - Note that even without

In case people on the list don't know it, A Vorbis tester (who's email I've lost! If you're on the list, speak up!) is maintaining a vorbis audio quality test page: http://hem.passagen.se/ingets1/vorbis.htm He's doing us the great service of hunting down samples that break Vorbis (so we don't have to :-) In any case, it turns out that the trumpets in the dr4 sample

...uant_pitch(id, gains, st->mode->nbPBands); ec_enc_bits(&enc, has_pitch, 1); /* Pitch flag */ ec_enc_bits(&enc, has_fold, 1); /* Folding flag */ - ec_enc_bits(&enc, id, 7); ec_enc_uint(&enc, pitch_index, MAX_PERIOD-(2*N-2*N4)); } else { if (!shortBlocks) @@ -618,6 +613,8 @@ int celt_encode_float(CELTEncoder * restrict st, const celt_sig_t * pcm, celt_si for (i=0;i<st->mode->nbEBands;i++) offsets[i] = 0; bits = nbCompressedBytes*8 - ec_enc_tell(&enc, 0) - 1; + if (has_pitch) + bits -= st->mode->nbPBands; #...

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]

...bands.c @@ -1161,7 +1161,7 @@ static unsigned quant_band(int encode, const 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; c...

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

...VE_RTCD */ +#endif /* !defined(FIXED_POINT) && defined(HAVE_ARM_NE10) */ + +#endif diff --git a/celt/celt_encoder.c b/celt/celt_encoder.c index 86a3fbb..9de9a92 100644 --- a/celt/celt_encoder.c +++ b/celt/celt_encoder.c @@ -435,7 +435,9 @@ static void compute_mdcts(const CELTMode *mode, int shortBlocks, celt_sig * OPUS for (b=0;b<B;b++) { /* Interleaving the sub-frames while doing the MDCTs */ - clt_mdct_forward(&mode->mdct, in+c*(B*N+overlap)+b*N, &out[b+c*N*B], mode->window, overlap, shift, B); + clt_mdct_forward(&mode->mdct, in+c...

Hello opus-dev, I've been cooking up this patchset to integrate NE10 library into opus. Current patchset focuses on encode use case mainly effecting performance of clt_mdct_forward() and opus_fft() (for float only) Glad to report the following on Encode use case: (Measured on my Beaglebone Black Cortex-A8 board) - Performance improvement for encode use case ~= 12.34% (Based on time -p