/* * Copyright (C) 2003-2009 The Music Player Daemon Project * http://www.musicpd.org * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "pcm_resample_internal.h" #include "config.h" #ifdef HAVE_LIBSAMPLERATE #include "conf.h" #endif #include <string.h> #ifdef HAVE_LIBSAMPLERATE static bool pcm_resample_lsr_enabled(void) { return strcmp(config_get_string(CONF_SAMPLERATE_CONVERTER, ""), "internal") != 0; } #endif void pcm_resample_init(struct pcm_resample_state *state) { memset(state, 0, sizeof(*state)); #ifdef HAVE_LIBSAMPLERATE if (pcm_resample_lsr_enabled()) { pcm_buffer_init(&state->in); pcm_buffer_init(&state->out); } #endif pcm_buffer_init(&state->buffer); } void pcm_resample_deinit(struct pcm_resample_state *state) { #ifdef HAVE_LIBSAMPLERATE if (pcm_resample_lsr_enabled()) pcm_resample_lsr_deinit(state); else #endif pcm_resample_fallback_deinit(state); } const int16_t * pcm_resample_16(struct pcm_resample_state *state, uint8_t channels, unsigned src_rate, const int16_t *src_buffer, size_t src_size, unsigned dest_rate, size_t *dest_size_r) { #ifdef HAVE_LIBSAMPLERATE if (pcm_resample_lsr_enabled()) return pcm_resample_lsr_16(state, channels, src_rate, src_buffer, src_size, dest_rate, dest_size_r); #endif return pcm_resample_fallback_16(state, channels, src_rate, src_buffer, src_size, dest_rate, dest_size_r); } const int32_t * pcm_resample_32(struct pcm_resample_state *state, uint8_t channels, unsigned src_rate, const int32_t *src_buffer, size_t src_size, unsigned dest_rate, size_t *dest_size_r) { #ifdef HAVE_LIBSAMPLERATE if (pcm_resample_lsr_enabled()) return pcm_resample_lsr_32(state, channels, src_rate, src_buffer, src_size, dest_rate, dest_size_r); #endif return pcm_resample_fallback_32(state, channels, src_rate, src_buffer, src_size, dest_rate, dest_size_r); }