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-rw-r--r--src/pcm_utils.c158
1 files changed, 0 insertions, 158 deletions
diff --git a/src/pcm_utils.c b/src/pcm_utils.c
deleted file mode 100644
index 69add6073..000000000
--- a/src/pcm_utils.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/* the Music Player Daemon (MPD)
- * Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
- * This project's homepage is: 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "pcm_utils.h"
-#include "pcm_channels.h"
-#include "pcm_format.h"
-#include "conf.h"
-#include "audio_format.h"
-
-#include <assert.h>
-#include <string.h>
-#include <math.h>
-#include <glib.h>
-
-#undef G_LOG_DOMAIN
-#define G_LOG_DOMAIN "pcm"
-
-void pcm_convert_init(struct pcm_convert_state *state)
-{
- memset(state, 0, sizeof(*state));
-
- pcm_resample_init(&state->resample);
- pcm_dither_24_init(&state->dither);
-}
-
-static size_t
-pcm_convert_16(const struct audio_format *src_format,
- const void *src_buffer, size_t src_size,
- const struct audio_format *dest_format,
- int16_t *dest_buffer,
- struct pcm_convert_state *state)
-{
- const int16_t *buf;
- size_t len;
- size_t dest_size = pcm_convert_size(src_format, src_size, dest_format);
-
- assert(dest_format->bits == 16);
-
- buf = pcm_convert_to_16(&state->dither, src_format->bits,
- src_buffer, src_size, &len);
- if (!buf)
- g_error("pcm_convert_to_16() failed");
-
- if (src_format->channels != dest_format->channels) {
- buf = pcm_convert_channels_16(dest_format->channels,
- src_format->channels,
- buf, len, &len);
- if (!buf)
- g_error("pcm_convert_channels_16() failed");
- }
-
- if (src_format->sample_rate == dest_format->sample_rate) {
- assert(dest_size >= len);
- memcpy(dest_buffer, buf, len);
- } else {
- len = pcm_resample_16(dest_format->channels,
- src_format->sample_rate, buf, len,
- dest_format->sample_rate,
- dest_buffer, dest_size,
- &state->resample);
- }
-
- return len;
-}
-
-static size_t
-pcm_convert_24(const struct audio_format *src_format,
- const void *src_buffer, size_t src_size,
- const struct audio_format *dest_format,
- int32_t *dest_buffer,
- struct pcm_convert_state *state)
-{
- const int32_t *buf;
- size_t len;
- size_t dest_size = pcm_convert_size(src_format, src_size, dest_format);
-
- assert(dest_format->bits == 24);
-
- buf = pcm_convert_to_24(src_format->bits,
- src_buffer, src_size, &len);
- if (!buf)
- g_error("pcm_convert_to_24() failed");
-
- if (src_format->channels != dest_format->channels) {
- buf = pcm_convert_channels_24(dest_format->channels,
- src_format->channels,
- buf, len, &len);
- if (!buf)
- g_error("pcm_convert_channels_24() failed");
- }
-
- if (src_format->sample_rate == dest_format->sample_rate) {
- assert(dest_size >= len);
- memcpy(dest_buffer, buf, len);
- } else {
- len = pcm_resample_24(dest_format->channels,
- src_format->sample_rate, buf, len,
- dest_format->sample_rate,
- (int32_t*)dest_buffer, dest_size,
- &state->resample);
- }
-
- return len;
-}
-
-/* outFormat bits must be 16 and channels must be 1 or 2! */
-size_t pcm_convert(const struct audio_format *inFormat,
- const char *src, size_t src_size,
- const struct audio_format *outFormat,
- char *outBuffer,
- struct pcm_convert_state *convState)
-{
- switch (outFormat->bits) {
- case 16:
- return pcm_convert_16(inFormat, src, src_size,
- outFormat, (int16_t*)outBuffer,
- convState);
- case 24:
- return pcm_convert_24(inFormat, src, src_size,
- outFormat, (int32_t*)outBuffer,
- convState);
-
- default:
- g_error("cannot convert to %u bit\n", outFormat->bits);
- }
-}
-
-size_t pcm_convert_size(const struct audio_format *inFormat, size_t src_size,
- const struct audio_format *outFormat)
-{
- const double ratio = (double)outFormat->sample_rate /
- (double)inFormat->sample_rate;
- size_t dest_size = src_size;
-
- /* no partial frames allowed */
- assert((src_size % audio_format_frame_size(inFormat)) == 0);
-
- dest_size /= audio_format_frame_size(inFormat);
- dest_size = ceil((double)dest_size * ratio);
- dest_size *= audio_format_frame_size(outFormat);
-
- return dest_size;
-}