search for: qmf_decomp

...ults with just the top functions listed. Note that Speex distributes its CPU load across many functions... Speex 1.0.1: With preprocessor: (overall 2.51%) 0.43% split_cb_search_shape_sign 0.26% speex_preprocess 0.26% fir_mem_up 0.23% filter_mem2 0.23% vq_nbest 0.18% open_loop_nbest_pitch 0.12% qmf_decomp No preprocessor: (overall 2.12%) 0.43% split_cb_search_shape_sign 0.23% fir_mem_up 0.22% filter_mem2 0.21% vq_nbest 0.18% open_loop_nbest_pitch 0.11% qmf_decomp Speex 1.0.7: With preprocessor: (overall 2.33%) 0.28% speex_preprocess 0.25% vq_nbest 0.23% split_cb_search_shape_sign_N1 0.21% fir_mem...

...lush speex_bits_read_whole_bytes speex_bits_write speex_bits_write_whole_bytes speex_bits_unpack_signed speex_bits_peek_unsigned speex_bits_peek speex_bits_nbytes speex_bits_insert_terminator In cd_search.c: noise_codebook_quant noise_codebook_unquant In filters.c: compute_rms syn_percep_zero16 qmf_decomp qmf_synth In ltp.c: forced_pitch_quant forced_pitch_unquant In math_approx.c: spx_ilog2 _spx_cos_pi_2 spx_cos_norm spx_exp2 spx_atan In nb_celp.c: nb_encoder_destroy nb_decoder_destroy In quant_lsp.c: lsp_quant_nb lsp_unquant_nb lsp_quant_high lsp_unquant_high In speex.c: speex_encoder_de...

...void fir_mem2(float *x, float *num, float *y, int N, int ord, float *mem) void syn_percep_zero(float *xx, float *ak, float *awk1, float *awk2, float *y, int N, int ord, char *stack) void residue_percep_zero(float *xx, float *ak, float *awk1, float *awk2, float *y, int N, int ord, char *stack) void qmf_decomp(float *xx, float *aa, float *y1, float *y2, int N, int M, float *mem, char *stack) void comb_filter( thanks very much -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20060526/eb6be7df/attachment.htm

...s: vq_nbest 33.05% vq_nbest_sign 11.12% filter_mem16 4.14% inner_prod 4.07% iir_mem16 2.75% qmf_synth 2.32% lsp_to_lpc 2.32% open_loop_nbest_pitch 1.41% compute_impulse_response 1.37% qmf_decomp 1.28% lpc_to_lsp 1.26% fir_mem16 1.16% speex_bits_pack 1.07% speex_bits_unpack_unsigned 0.86% compute_rms16 0.79% 4. I'm using the echo-canceller + preprocessor, I'd really like to improve performance here: - I would...

...t least using speex_bits_init(), speex_bits_read_from() and speex_bits_write(). What are you using instead? > In cd_search.c: > noise_codebook_quant > noise_codebook_unquant No need for that (assuming you only want 8 kbps). > In filters.c: > compute_rms > syn_percep_zero16 > qmf_decomp > qmf_synth No need for that. > In ltp.c: > forced_pitch_quant > forced_pitch_unquant No need for that. > In math_approx.c: > spx_ilog2 > _spx_cos_pi_2 > spx_cos_norm > spx_exp2 > spx_atan No need for that. > In nb_celp.c: > nb_encoder_destroy > nb_decod...

...le_bytes > speex_bits_unpack_signed > speex_bits_peek_unsigned > speex_bits_peek > speex_bits_nbytes > speex_bits_insert_terminator > > In cd_search.c: > noise_codebook_quant > noise_codebook_unquant > > In filters.c: > compute_rms > syn_percep_zero16 > qmf_decomp > qmf_synth > > In ltp.c: > forced_pitch_quant > forced_pitch_unquant > > In math_approx.c: > spx_ilog2 > _spx_cos_pi_2 > spx_cos_norm > spx_exp2 > spx_atan > > In nb_celp.c: > nb_encoder_destroy > nb_decoder_destroy > > In quant_lsp.c:...

...x_bits_write_whole_bytes >> speex_bits_unpack_signed speex_bits_peek_unsigned speex_bits_peek >> speex_bits_nbytes speex_bits_insert_terminator >> >> In cd_search.c: noise_codebook_quant noise_codebook_unquant >> >> In filters.c: compute_rms syn_percep_zero16 qmf_decomp qmf_synth >> >> In ltp.c: forced_pitch_quant forced_pitch_unquant >> >> In math_approx.c: spx_ilog2 _spx_cos_pi_2 spx_cos_norm spx_exp2 >> spx_atan >> >> In nb_celp.c: nb_encoder_destroy nb_decoder_destroy >> >> In quant_lsp.c: lsp_quant_nb...

...codewords response and energy */ cb_search_update target - loop at the comment: /* New code: update the rest of the target only if it's worth it */ These functions represent 1/2 of the compute time at complexity 10 and 4/5 at complexity 4. The next hot functions at low complexity are: qmf_decomp, fir_mem_up and pitch_gain_search_3tap Some questions I have: 1. I haven't been able to get the version of iir_mem2 in filters_sse.h translated and working. Does this work with GCC, I'm burning my eyeballs trying to spot the difference in my version. 2. I don't have a good source of w...

...mb -T nb_decode -T nb_decoder_ctl -T nb_decoder_destroy -T nb_decoder_init -T nb_encode -T nb_encoder_ctl -T nb_encoder_destroy -T nb_encoder_init -T nb_mode_query -T noise_codebook_quant -T noise_codebook_unquant -T open_loop_nbest_pitch -T pitch_search_3tap -T pitch_unquant_3tap -T pitch_xcorr -T qmf_decomp -T qmf_synth -T residue_percep_zero16 -T sanitize_values32 -T sb_decode -T sb_decoder_ctl -T sb_decoder_destroy -T sb_decoder_init -T sb_encode -T sb_encoder_ctl -T sb_encoder_destroy -T sb_encoder_init -T scal_quant -T scal_quant32 -T signal_div -T signal_mul T speex_bits_advance T speex_bits_de...

...mb -T nb_decode -T nb_decoder_ctl -T nb_decoder_destroy -T nb_decoder_init -T nb_encode -T nb_encoder_ctl -T nb_encoder_destroy -T nb_encoder_init -T nb_mode_query -T noise_codebook_quant -T noise_codebook_unquant -T open_loop_nbest_pitch -T pitch_search_3tap -T pitch_unquant_3tap -T pitch_xcorr -T qmf_decomp -T qmf_synth -T residue_percep_zero16 -T sanitize_values32 -T sb_decode -T sb_decoder_ctl -T sb_decoder_destroy -T sb_decoder_init -T sb_encode -T sb_encoder_ctl -T sb_encoder_destroy -T sb_encoder_init -T scal_quant -T scal_quant32 -T signal_div -T signal_mul T speex_bits_advance T speex_bits_de...