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-rw-r--r--src/Makefile.am2
-rw-r--r--src/pcm_utils.c87
-rw-r--r--src/pcm_utils.h19
-rw-r--r--src/pcm_volume.c105
-rw-r--r--src/pcm_volume.h59
-rw-r--r--src/player_control.c2
-rw-r--r--src/player_thread.c2
-rw-r--r--src/replay_gain.c2
-rw-r--r--src/volume.c2
9 files changed, 171 insertions, 109 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index 7337d9150..2c2b14665 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -50,6 +50,7 @@ mpd_headers = \
path.h \
mapper.h \
pcm_utils.h \
+ pcm_volume.h \
pcm_channels.h \
pcm_resample.h \
pcm_dither.h \
@@ -129,6 +130,7 @@ mpd_SOURCES = \
path.c \
mapper.c \
pcm_utils.c \
+ pcm_volume.c \
pcm_channels.c \
pcm_resample.c \
pcm_dither.c \
diff --git a/src/pcm_utils.c b/src/pcm_utils.c
index 43690ef89..d619c9dd7 100644
--- a/src/pcm_utils.c
+++ b/src/pcm_utils.c
@@ -19,6 +19,7 @@
#include "pcm_utils.h"
#include "pcm_channels.h"
#include "pcm_prng.h"
+#include "pcm_volume.h"
#include "conf.h"
#include "audio_format.h"
@@ -30,92 +31,6 @@
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "pcm"
-static inline int
-pcm_dither(void)
-{
- static unsigned long state;
- uint32_t r;
-
- r = state = prng(state);
-
- return (r & 511) - ((r >> 9) & 511);
-}
-
-static void
-pcm_volume_change_8(int8_t *buffer, unsigned num_samples, int volume)
-{
- while (num_samples > 0) {
- int32_t sample = *buffer;
-
- sample = (sample * volume + pcm_dither() + PCM_VOLUME_1 / 2)
- / PCM_VOLUME_1;
-
- *buffer++ = pcm_range(sample, 8);
- --num_samples;
- }
-}
-
-static void
-pcm_volume_change_16(int16_t *buffer, unsigned num_samples, int volume)
-{
- while (num_samples > 0) {
- int32_t sample = *buffer;
-
- sample = (sample * volume + pcm_dither() + PCM_VOLUME_1 / 2)
- / PCM_VOLUME_1;
-
- *buffer++ = pcm_range(sample, 16);
- --num_samples;
- }
-}
-
-static void
-pcm_volume_change_24(int32_t *buffer, unsigned num_samples, int volume)
-{
- while (num_samples > 0) {
- int64_t sample = *buffer;
-
- sample = (sample * volume + pcm_dither() + PCM_VOLUME_1 / 2)
- / PCM_VOLUME_1;
-
- *buffer++ = pcm_range(sample, 24);
- --num_samples;
- }
-}
-
-void pcm_volume(char *buffer, int bufferSize,
- const struct audio_format *format,
- int volume)
-{
- if (volume == PCM_VOLUME_1)
- return;
-
- if (volume <= 0) {
- memset(buffer, 0, bufferSize);
- return;
- }
-
- switch (format->bits) {
- case 8:
- pcm_volume_change_8((int8_t *)buffer, bufferSize, volume);
- break;
-
- case 16:
- pcm_volume_change_16((int16_t *)buffer, bufferSize / 2,
- volume);
- break;
-
- case 24:
- pcm_volume_change_24((int32_t*)buffer, bufferSize / 4,
- volume);
- break;
-
- default:
- g_error("%u bits not supported by pcm_volume!\n",
- format->bits);
- }
-}
-
static void
pcm_add_8(int8_t *buffer1, const int8_t *buffer2,
unsigned num_samples, int volume1, int volume2)
diff --git a/src/pcm_utils.h b/src/pcm_utils.h
index 44ea5aa16..61262048f 100644
--- a/src/pcm_utils.h
+++ b/src/pcm_utils.h
@@ -29,11 +29,6 @@
struct audio_format;
-enum {
- /** this value means "100% volume" */
- PCM_VOLUME_1 = 1000,
-};
-
struct pcm_convert_state {
struct pcm_resample_state resample;
@@ -57,20 +52,6 @@ pcm_range(int32_t sample, unsigned bits)
return sample;
}
-/**
- * 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;
-}
-
-void pcm_volume(char *buffer, int bufferSize,
- const struct audio_format *format,
- int volume);
-
void pcm_mix(char *buffer1, const char *buffer2, size_t size,
const struct audio_format *format, float portion1);
diff --git a/src/pcm_volume.c b/src/pcm_volume.c
new file mode 100644
index 000000000..af7916b1f
--- /dev/null
+++ b/src/pcm_volume.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2003-2009 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "pcm_volume.h"
+#include "pcm_utils.h"
+#include "audio_format.h"
+
+#include <glib.h>
+
+#include <stdint.h>
+#include <string.h>
+
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "pcm_volume"
+
+static void
+pcm_volume_change_8(int8_t *buffer, unsigned num_samples, int volume)
+{
+ while (num_samples > 0) {
+ int32_t sample = *buffer;
+
+ sample = (sample * volume + pcm_dither() + PCM_VOLUME_1 / 2)
+ / PCM_VOLUME_1;
+
+ *buffer++ = pcm_range(sample, 8);
+ --num_samples;
+ }
+}
+
+static void
+pcm_volume_change_16(int16_t *buffer, unsigned num_samples, int volume)
+{
+ while (num_samples > 0) {
+ int32_t sample = *buffer;
+
+ sample = (sample * volume + pcm_dither() + PCM_VOLUME_1 / 2)
+ / PCM_VOLUME_1;
+
+ *buffer++ = pcm_range(sample, 16);
+ --num_samples;
+ }
+}
+
+static void
+pcm_volume_change_24(int32_t *buffer, unsigned num_samples, int volume)
+{
+ while (num_samples > 0) {
+ int64_t sample = *buffer;
+
+ sample = (sample * volume + pcm_dither() + PCM_VOLUME_1 / 2)
+ / PCM_VOLUME_1;
+
+ *buffer++ = pcm_range(sample, 24);
+ --num_samples;
+ }
+}
+
+void
+pcm_volume(char *buffer, int bufferSize,
+ const struct audio_format *format,
+ int volume)
+{
+ if (volume == PCM_VOLUME_1)
+ return;
+
+ if (volume <= 0) {
+ memset(buffer, 0, bufferSize);
+ return;
+ }
+
+ switch (format->bits) {
+ case 8:
+ pcm_volume_change_8((int8_t *)buffer, bufferSize, volume);
+ break;
+
+ case 16:
+ pcm_volume_change_16((int16_t *)buffer, bufferSize / 2,
+ volume);
+ break;
+
+ case 24:
+ pcm_volume_change_24((int32_t*)buffer, bufferSize / 4,
+ volume);
+ break;
+
+ default:
+ g_error("%u bits not supported by pcm_volume!\n",
+ format->bits);
+ }
+}
diff --git a/src/pcm_volume.h b/src/pcm_volume.h
new file mode 100644
index 000000000..eb3f8d6ee
--- /dev/null
+++ b/src/pcm_volume.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2003-2009 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef PCM_VOLUME_H
+#define PCM_VOLUME_H
+
+#include "pcm_prng.h"
+
+#include <stdint.h>
+
+enum {
+ /** this value means "100% volume" */
+ PCM_VOLUME_1 = 1000,
+};
+
+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 int
+pcm_dither(void)
+{
+ static unsigned long state;
+ uint32_t r;
+
+ r = state = prng(state);
+
+ return (r & 511) - ((r >> 9) & 511);
+}
+
+void
+pcm_volume(char *buffer, int bufferSize,
+ const struct audio_format *format,
+ int volume);
+
+#endif
diff --git a/src/player_control.c b/src/player_control.c
index e30ce6ec4..60b5b8350 100644
--- a/src/player_control.c
+++ b/src/player_control.c
@@ -22,7 +22,7 @@
#include "tag.h"
#include "song.h"
#include "idle.h"
-#include "pcm_utils.h"
+#include "pcm_volume.h"
#include "main.h"
#include <assert.h>
diff --git a/src/player_thread.c b/src/player_thread.c
index bdf36f43f..5c187ccd7 100644
--- a/src/player_thread.c
+++ b/src/player_thread.c
@@ -20,7 +20,7 @@
#include "player_control.h"
#include "decoder_control.h"
#include "audio.h"
-#include "pcm_utils.h"
+#include "pcm_volume.h"
#include "path.h"
#include "event_pipe.h"
#include "crossfade.h"
diff --git a/src/replay_gain.c b/src/replay_gain.c
index 74b7c7f34..cc2397b08 100644
--- a/src/replay_gain.c
+++ b/src/replay_gain.c
@@ -20,7 +20,7 @@
#include "replay_gain.h"
#include "conf.h"
#include "audio_format.h"
-#include "pcm_utils.h"
+#include "pcm_volume.h"
#include <glib.h>
#include <stdlib.h>
diff --git a/src/volume.c b/src/volume.c
index e76528d72..97b1ccd2b 100644
--- a/src/volume.c
+++ b/src/volume.c
@@ -20,7 +20,7 @@
#include "conf.h"
#include "player_control.h"
#include "idle.h"
-#include "pcm_utils.h"
+#include "pcm_volume.h"
#include "config.h"
#include "audio.h"
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 02:13:09 +0000