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Diffstat (limited to 'src/pcm_resample.h')
| -rw-r--r-- | src/pcm_resample.h | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/src/pcm_resample.h b/src/pcm_resample.h deleted file mode 100644 index 8e73659d..00000000 --- a/src/pcm_resample.h +++ /dev/null @@ -1,164 +0,0 @@ -/* - * Copyright (C) 2003-2011 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. - */ - -#ifndef MPD_PCM_RESAMPLE_H -#define MPD_PCM_RESAMPLE_H - -#include "check.h" -#include "pcm_buffer.h" - -#include <stdint.h> -#include <stddef.h> -#include <stdbool.h> - -#if CONFIG_LIBSAMPLERATE -#include <samplerate.h> -#endif - -/** - * This object is statically allocated (within another struct), and - * holds buffer allocations and the state for the resampler. - */ -struct pcm_resample_state { -#if CONFIG_LIBSAMPLERATE - SRC_STATE *state; - SRC_DATA data; - - struct pcm_buffer in, out; - - struct { - unsigned src_rate; - unsigned dest_rate; - unsigned channels; - } prev; - - int error; -#endif - - struct pcm_buffer buffer; -}; - -bool -pcm_resample_global_init(GError **error_r); - -/** - * Initializes a pcm_resample_state object. - */ -void pcm_resample_init(struct pcm_resample_state *state); - -/** - * Deinitializes a pcm_resample_state object and frees allocated - * memory. - */ -void pcm_resample_deinit(struct pcm_resample_state *state); - -/** - * @see pcm_convert_reset() - */ -void -pcm_resample_reset(struct pcm_resample_state *state); - -/** - * Resamples 32 bit float data. - * - * @param state an initialized pcm_resample_state object - * @param channels the number of channels - * @param src_rate the source sample rate - * @param src the source PCM buffer - * @param src_size the size of #src in bytes - * @param dest_rate the requested destination sample rate - * @param dest_size_r returns the number of bytes of the destination buffer - * @return the destination buffer - */ -const float * -pcm_resample_float(struct pcm_resample_state *state, - unsigned channels, - unsigned src_rate, - const float *src_buffer, size_t src_size, - unsigned dest_rate, size_t *dest_size_r, - GError **error_r); - -/** - * Resamples 16 bit PCM data. - * - * @param state an initialized pcm_resample_state object - * @param channels the number of channels - * @param src_rate the source sample rate - * @param src the source PCM buffer - * @param src_size the size of #src in bytes - * @param dest_rate the requested destination sample rate - * @param dest_size_r returns the number of bytes of the destination buffer - * @return the destination buffer - */ -const int16_t * -pcm_resample_16(struct pcm_resample_state *state, - unsigned channels, - unsigned src_rate, - const int16_t *src_buffer, size_t src_size, - unsigned dest_rate, size_t *dest_size_r, - GError **error_r); - -/** - * Resamples 32 bit PCM data. - * - * @param state an initialized pcm_resample_state object - * @param channels the number of channels - * @param src_rate the source sample rate - * @param src the source PCM buffer - * @param src_size the size of #src in bytes - * @param dest_rate the requested destination sample rate - * @param dest_size_r returns the number of bytes of the destination buffer - * @return the destination buffer - */ -const int32_t * -pcm_resample_32(struct pcm_resample_state *state, - unsigned channels, - unsigned src_rate, - const int32_t *src_buffer, size_t src_size, - unsigned dest_rate, size_t *dest_size_r, - GError **error_r); - -/** - * Resamples 24 bit PCM data. - * - * @param state an initialized pcm_resample_state object - * @param channels the number of channels - * @param src_rate the source sample rate - * @param src the source PCM buffer - * @param src_size the size of #src in bytes - * @param dest_rate the requested destination sample rate - * @param dest_size_r returns the number of bytes of the destination buffer - * @return the destination buffer - */ -static inline const int32_t * -pcm_resample_24(struct pcm_resample_state *state, - unsigned channels, - unsigned src_rate, - const int32_t *src_buffer, size_t src_size, - unsigned dest_rate, size_t *dest_size_r, - GError **error_r) -{ - /* reuse the 32 bit code - the resampler code doesn't care if - the upper 8 bits are actually used */ - return pcm_resample_32(state, channels, - src_rate, src_buffer, src_size, - dest_rate, dest_size_r, error_r); -} - -#endif |