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-rw-r--r--src/pcm_volume.h81
1 files changed, 0 insertions, 81 deletions
diff --git a/src/pcm_volume.h b/src/pcm_volume.h
deleted file mode 100644
index 64e3c7641..000000000
--- a/src/pcm_volume.h
+++ /dev/null
@@ -1,81 +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 PCM_VOLUME_H
-#define PCM_VOLUME_H
-
-#include "pcm_prng.h"
-#include "audio_format.h"
-
-#include <stdint.h>
-#include <stdbool.h>
-
-enum {
- /** this value means "100% volume" */
- PCM_VOLUME_1 = 1024,
-};
-
-struct audio_format;
-
-/**
- * Converts a float value (0.0 = silence, 1.0 = 100% volume) to an
- * integer volume value (1000 = 100%).
- */
-static inline int
-pcm_float_to_volume(float volume)
-{
- return volume * PCM_VOLUME_1 + 0.5;
-}
-
-static inline float
-pcm_volume_to_float(int volume)
-{
- return (float)volume / (float)PCM_VOLUME_1;
-}
-
-/**
- * Returns the next volume dithering number, between -511 and +511.
- * This number is taken from a global PRNG, see pcm_prng().
- */
-static inline int
-pcm_volume_dither(void)
-{
- static unsigned long state;
- uint32_t r;
-
- r = state = pcm_prng(state);
-
- return (r & 511) - ((r >> 9) & 511);
-}
-
-/**
- * Adjust the volume of the specified PCM buffer.
- *
- * @param buffer the PCM buffer
- * @param length the length of the PCM buffer
- * @param format the sample format of the PCM buffer
- * @param volume the volume between 0 and #PCM_VOLUME_1
- * @return true on success, false if the audio format is not supported
- */
-bool
-pcm_volume(void *buffer, size_t length,
- enum sample_format format,
- int volume);
-
-#endif