From c654c7630aad220a4935c34b076e107b6b0561a5 Mon Sep 17 00:00:00 2001 From: Max Kellermann Date: Tue, 9 Apr 2013 01:24:52 +0200 Subject: pcm_*: move to src/pcm/ --- src/pcm_resample_fallback.c | 118 -------------------------------------------- 1 file changed, 118 deletions(-) delete mode 100644 src/pcm_resample_fallback.c (limited to 'src/pcm_resample_fallback.c') diff --git a/src/pcm_resample_fallback.c b/src/pcm_resample_fallback.c deleted file mode 100644 index 1d1dfdf59..000000000 --- a/src/pcm_resample_fallback.c +++ /dev/null @@ -1,118 +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. - */ - -#include "config.h" -#include "pcm_resample_internal.h" - -#include - -void -pcm_resample_fallback_init(struct pcm_resample_state *state) -{ - pcm_buffer_init(&state->buffer); -} - -void -pcm_resample_fallback_deinit(struct pcm_resample_state *state) -{ - pcm_buffer_deinit(&state->buffer); -} - -/* resampling code blatantly ripped from ESD */ -const int16_t * -pcm_resample_fallback_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) -{ - unsigned src_pos, dest_pos = 0; - unsigned src_frames = src_size / channels / sizeof(*src_buffer); - unsigned dest_frames = - (src_frames * dest_rate + src_rate - 1) / src_rate; - unsigned dest_samples = dest_frames * channels; - size_t dest_size = dest_samples * sizeof(*src_buffer); - int16_t *dest_buffer = pcm_buffer_get(&state->buffer, dest_size); - - assert((src_size % (sizeof(*src_buffer) * channels)) == 0); - - switch (channels) { - case 1: - while (dest_pos < dest_samples) { - src_pos = dest_pos * src_rate / dest_rate; - - dest_buffer[dest_pos++] = src_buffer[src_pos]; - } - break; - case 2: - while (dest_pos < dest_samples) { - src_pos = dest_pos * src_rate / dest_rate; - src_pos &= ~1; - - dest_buffer[dest_pos++] = src_buffer[src_pos]; - dest_buffer[dest_pos++] = src_buffer[src_pos + 1]; - } - break; - } - - *dest_size_r = dest_size; - return dest_buffer; -} - -const int32_t * -pcm_resample_fallback_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) -{ - unsigned src_pos, dest_pos = 0; - unsigned src_frames = src_size / channels / sizeof(*src_buffer); - unsigned dest_frames = - (src_frames * dest_rate + src_rate - 1) / src_rate; - unsigned dest_samples = dest_frames * channels; - size_t dest_size = dest_samples * sizeof(*src_buffer); - int32_t *dest_buffer = pcm_buffer_get(&state->buffer, dest_size); - - assert((src_size % (sizeof(*src_buffer) * channels)) == 0); - - switch (channels) { - case 1: - while (dest_pos < dest_samples) { - src_pos = dest_pos * src_rate / dest_rate; - - dest_buffer[dest_pos++] = src_buffer[src_pos]; - } - break; - case 2: - while (dest_pos < dest_samples) { - src_pos = dest_pos * src_rate / dest_rate; - src_pos &= ~1; - - dest_buffer[dest_pos++] = src_buffer[src_pos]; - dest_buffer[dest_pos++] = src_buffer[src_pos + 1]; - } - break; - } - - *dest_size_r = dest_size; - return dest_buffer; -} -- cgit v1.2.3