search for: qmf_synth

Hi all, I've taken preglows ARM versions of qmf_synth and iir_mem16 from rockboxes speex codec, and tweaked them a bit further for some more speed. I attach them here so you can review and take on any changes you want. Please let me know if you have questions etc. Thanks, Robin -- Robin Watts, Email: <mailto:Robin.Watts@wss.co.uk&g...

...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_destroy spee...

...ood boost by using a scratch buffer in SRAM. 2. Wideband Encode+Decode takes 79.1 + 7.2 MIPS on my BF536 400/133 Mhz 3. Profiler says: 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_rms1...

...eex_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_decoder_destroy No...

...eex_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_...

...e_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_unqua...

...e -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_destroy T spee...

...e -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_destroy T spee...