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-rw-r--r--src/pcm_channels.c246
1 files changed, 0 insertions, 246 deletions
diff --git a/src/pcm_channels.c b/src/pcm_channels.c
deleted file mode 100644
index ec2bd69a5..000000000
--- a/src/pcm_channels.c
+++ /dev/null
@@ -1,246 +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_channels.h"
-#include "pcm_buffer.h"
-#include "pcm_utils.h"
-
-#include <assert.h>
-
-static void
-pcm_convert_channels_16_1_to_2(int16_t *restrict dest,
- const int16_t *restrict src,
- const int16_t *restrict src_end)
-{
- while (src < src_end) {
- int16_t value = *src++;
-
- *dest++ = value;
- *dest++ = value;
- }
-}
-
-static void
-pcm_convert_channels_16_2_to_1(int16_t *restrict dest,
- const int16_t *restrict src,
- const int16_t *restrict src_end)
-{
- while (src < src_end) {
- int32_t a = *src++, b = *src++;
-
- *dest++ = (a + b) / 2;
- }
-}
-
-static void
-pcm_convert_channels_16_n_to_2(int16_t *restrict dest,
- unsigned src_channels,
- const int16_t *restrict src,
- const int16_t *restrict src_end)
-{
- unsigned c;
-
- assert(src_channels > 0);
-
- while (src < src_end) {
- int32_t sum = 0;
- int16_t value;
-
- for (c = 0; c < src_channels; ++c)
- sum += *src++;
- value = sum / (int)src_channels;
-
- /* XXX this is actually only mono ... */
- *dest++ = value;
- *dest++ = value;
- }
-}
-
-const int16_t *
-pcm_convert_channels_16(struct pcm_buffer *buffer,
- unsigned dest_channels,
- unsigned src_channels, const int16_t *src,
- size_t src_size, size_t *dest_size_r)
-{
- assert(src_size % (sizeof(*src) * src_channels) == 0);
-
- size_t dest_size = src_size / src_channels * dest_channels;
- *dest_size_r = dest_size;
-
- int16_t *dest = pcm_buffer_get(buffer, dest_size);
- const int16_t *src_end = pcm_end_pointer(src, src_size);
-
- if (src_channels == 1 && dest_channels == 2)
- pcm_convert_channels_16_1_to_2(dest, src, src_end);
- else if (src_channels == 2 && dest_channels == 1)
- pcm_convert_channels_16_2_to_1(dest, src, src_end);
- else if (dest_channels == 2)
- pcm_convert_channels_16_n_to_2(dest, src_channels, src,
- src_end);
- else
- return NULL;
-
- return dest;
-}
-
-static void
-pcm_convert_channels_24_1_to_2(int32_t *restrict dest,
- const int32_t *restrict src,
- const int32_t *restrict src_end)
-{
- while (src < src_end) {
- int32_t value = *src++;
-
- *dest++ = value;
- *dest++ = value;
- }
-}
-
-static void
-pcm_convert_channels_24_2_to_1(int32_t *restrict dest,
- const int32_t *restrict src,
- const int32_t *restrict src_end)
-{
- while (src < src_end) {
- int32_t a = *src++, b = *src++;
-
- *dest++ = (a + b) / 2;
- }
-}
-
-static void
-pcm_convert_channels_24_n_to_2(int32_t *restrict dest,
- unsigned src_channels,
- const int32_t *restrict src,
- const int32_t *restrict src_end)
-{
- unsigned c;
-
- assert(src_channels > 0);
-
- while (src < src_end) {
- int32_t sum = 0;
- int32_t value;
-
- for (c = 0; c < src_channels; ++c)
- sum += *src++;
- value = sum / (int)src_channels;
-
- /* XXX this is actually only mono ... */
- *dest++ = value;
- *dest++ = value;
- }
-}
-
-const int32_t *
-pcm_convert_channels_24(struct pcm_buffer *buffer,
- unsigned dest_channels,
- unsigned src_channels, const int32_t *src,
- size_t src_size, size_t *dest_size_r)
-{
- assert(src_size % (sizeof(*src) * src_channels) == 0);
-
- size_t dest_size = src_size / src_channels * dest_channels;
- *dest_size_r = dest_size;
-
- int32_t *dest = pcm_buffer_get(buffer, dest_size);
- const int32_t *src_end = pcm_end_pointer(src, src_size);
-
- if (src_channels == 1 && dest_channels == 2)
- pcm_convert_channels_24_1_to_2(dest, src, src_end);
- else if (src_channels == 2 && dest_channels == 1)
- pcm_convert_channels_24_2_to_1(dest, src, src_end);
- else if (dest_channels == 2)
- pcm_convert_channels_24_n_to_2(dest, src_channels, src,
- src_end);
- else
- return NULL;
-
- return dest;
-}
-
-static void
-pcm_convert_channels_32_1_to_2(int32_t *dest, const int32_t *src,
- const int32_t *src_end)
-{
- pcm_convert_channels_24_1_to_2(dest, src, src_end);
-}
-
-static void
-pcm_convert_channels_32_2_to_1(int32_t *restrict dest,
- const int32_t *restrict src,
- const int32_t *restrict src_end)
-{
- while (src < src_end) {
- int64_t a = *src++, b = *src++;
-
- *dest++ = (a + b) / 2;
- }
-}
-
-static void
-pcm_convert_channels_32_n_to_2(int32_t *dest,
- unsigned src_channels, const int32_t *src,
- const int32_t *src_end)
-{
- unsigned c;
-
- assert(src_channels > 0);
-
- while (src < src_end) {
- int64_t sum = 0;
- int32_t value;
-
- for (c = 0; c < src_channels; ++c)
- sum += *src++;
- value = sum / (int64_t)src_channels;
-
- /* XXX this is actually only mono ... */
- *dest++ = value;
- *dest++ = value;
- }
-}
-
-const int32_t *
-pcm_convert_channels_32(struct pcm_buffer *buffer,
- unsigned dest_channels,
- unsigned src_channels, const int32_t *src,
- size_t src_size, size_t *dest_size_r)
-{
- assert(src_size % (sizeof(*src) * src_channels) == 0);
-
- size_t dest_size = src_size / src_channels * dest_channels;
- *dest_size_r = dest_size;
-
- int32_t *dest = pcm_buffer_get(buffer, dest_size);
- const int32_t *src_end = pcm_end_pointer(src, src_size);
-
- if (src_channels == 1 && dest_channels == 2)
- pcm_convert_channels_32_1_to_2(dest, src, src_end);
- else if (src_channels == 2 && dest_channels == 1)
- pcm_convert_channels_32_2_to_1(dest, src, src_end);
- else if (dest_channels == 2)
- pcm_convert_channels_32_n_to_2(dest, src_channels, src,
- src_end);
- else
- return NULL;
-
- return dest;
-}