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authorMax Kellermann <max@duempel.org>2010-02-14 17:04:39 +0100
committerMax Kellermann <max@duempel.org>2010-02-17 07:23:13 +0100
commit752dfb3d95482c562e5d24c6ea839c4815de9a6d (patch)
tree46b62f26c4c68ebe81b72b9ca30366ffa14af1a5
parent5e0117b4441f257fcb1aab48b42a787567ebcbe6 (diff)
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replay_gain: reimplement as a filter plugin
Apply the replay gain in the output thread. This means a new setting will be active instantly, without going through the whole music pipe. And we might have different replay gain settings for each audio output device.
-rw-r--r--Makefile.am9
-rw-r--r--NEWS2
-rw-r--r--src/chunk.c1
-rw-r--r--src/chunk.h15
-rw-r--r--src/decoder_api.c27
-rw-r--r--src/decoder_internal.c9
-rw-r--r--src/decoder_internal.h9
-rw-r--r--src/decoder_thread.c6
-rw-r--r--src/filter/replay_gain_filter_plugin.c193
-rw-r--r--src/filter/replay_gain_filter_plugin.h (renamed from src/replay_gain_state.h)35
-rw-r--r--src/filter_registry.c1
-rw-r--r--src/filter_registry.h1
-rw-r--r--src/output_init.c11
-rw-r--r--src/output_internal.h12
-rw-r--r--src/output_thread.c11
-rw-r--r--src/replay_gain_state.c117
-rw-r--r--test/run_filter.c6
-rw-r--r--test/run_output.c6
18 files changed, 310 insertions, 161 deletions
diff --git a/Makefile.am b/Makefile.am
index 0cbfffd49..ddb27a689 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -55,6 +55,7 @@ mpd_headers = \
src/filter/autoconvert_filter_plugin.h \
src/filter/chain_filter_plugin.h \
src/filter/convert_filter_plugin.h \
+ src/filter/replay_gain_filter_plugin.h \
src/filter/volume_filter_plugin.h \
src/command.h \
src/idle.h \
@@ -175,7 +176,6 @@ mpd_headers = \
src/queue_save.h \
src/replay_gain_config.h \
src/replay_gain_info.h \
- src/replay_gain_state.h \
src/sig_handlers.h \
src/song.h \
src/song_print.h \
@@ -306,7 +306,6 @@ src_mpd_SOURCES = \
src/queue_save.c \
src/replay_gain_config.c \
src/replay_gain_info.c \
- src/replay_gain_state.c \
src/sig_handlers.c \
src/song.c \
src/song_update.c \
@@ -744,6 +743,7 @@ FILTER_SRC = \
src/filter/convert_filter_plugin.c \
src/filter/route_filter_plugin.c \
src/filter/normalize_filter_plugin.c \
+ src/filter/replay_gain_filter_plugin.c \
src/filter/volume_filter_plugin.c
@@ -900,6 +900,8 @@ test_run_filter_SOURCES = test/run_filter.c \
src/audio_check.c \
src/audio_format.c \
src/audio_parser.c \
+ src/replay_gain_config.c \
+ src/replay_gain_info.c \
src/AudioCompress/compress.c \
$(FILTER_SRC)
@@ -985,10 +987,13 @@ test_run_output_SOURCES = test/run_output.c \
src/filter_config.c \
src/filter/autoconvert_filter_plugin.c \
src/filter/convert_filter_plugin.c \
+ src/filter/replay_gain_filter_plugin.c \
src/filter/normalize_filter_plugin.c \
src/filter/volume_filter_plugin.c \
src/pcm_volume.c \
src/AudioCompress/compress.c \
+ src/replay_gain_info.c \
+ src/replay_gain_config.c \
src/fd_util.c \
$(OUTPUT_SRC)
diff --git a/NEWS b/NEWS
index 7cc25808e..4000a1933 100644
--- a/NEWS
+++ b/NEWS
@@ -70,6 +70,8 @@ ver 0.16 (20??/??/??)
- rescan after metadata_to_use change
* normalize: upgraded to AudioCompress 2.0
- automatically convert to 16 bit samples
+* replay gain:
+ - reimplemented as a filter plugin
* log unused/unknown block parameters
* removed the deprecated "error_file" option
* save state when stopped
diff --git a/src/chunk.c b/src/chunk.c
index 8fff3c7dd..5418b6cda 100644
--- a/src/chunk.c
+++ b/src/chunk.c
@@ -29,6 +29,7 @@ music_chunk_init(struct music_chunk *chunk)
{
chunk->length = 0;
chunk->tag = NULL;
+ chunk->replay_gain_serial = 0;
}
void
diff --git a/src/chunk.h b/src/chunk.h
index 58bab3dc2..23f6321fb 100644
--- a/src/chunk.h
+++ b/src/chunk.h
@@ -20,6 +20,8 @@
#ifndef MPD_CHUNK_H
#define MPD_CHUNK_H
+#include "replay_gain_info.h"
+
#ifndef NDEBUG
#include "audio_format.h"
#endif
@@ -59,6 +61,19 @@ struct music_chunk {
*/
struct tag *tag;
+ /**
+ * Replay gain information associated with this chunk.
+ * Only valid if the serial is not 0.
+ */
+ struct replay_gain_info replay_gain_info;
+
+ /**
+ * A serial number for checking if replay gain info has
+ * changed since the last chunk. The magic value 0 indicates
+ * that there is no replay gain info available.
+ */
+ unsigned replay_gain_serial;
+
/** the data (probably PCM) */
char data[CHUNK_SIZE];
diff --git a/src/decoder_api.c b/src/decoder_api.c
index 7dfe84062..285e21a6b 100644
--- a/src/decoder_api.c
+++ b/src/decoder_api.c
@@ -27,8 +27,6 @@
#include "buffer.h"
#include "pipe.h"
#include "chunk.h"
-#include "replay_gain_state.h"
-#include "replay_gain_config.h"
#include <glib.h>
@@ -343,13 +341,6 @@ decoder_data(struct decoder *decoder,
memcpy(dest, data, nbytes);
- /* apply replay gain or normalization */
-
- replay_gain_state_set_mode(decoder->replay_gain,
- replay_gain_mode);
- replay_gain_state_apply(decoder->replay_gain,
- dest, nbytes, &dc->out_audio_format);
-
/* expand the music pipe chunk */
full = music_chunk_expand(chunk, &dc->out_audio_format, nbytes);
@@ -418,5 +409,21 @@ decoder_replay_gain(struct decoder *decoder,
{
assert(decoder != NULL);
- replay_gain_state_set_info(decoder->replay_gain, replay_gain_info);
+ if (replay_gain_info != NULL) {
+ static unsigned serial;
+ if (++serial == 0)
+ serial = 1;
+
+ decoder->replay_gain_info = *replay_gain_info;
+ decoder->replay_gain_serial = serial;
+
+ if (decoder->chunk != NULL) {
+ /* flush the current chunk because the new
+ replay gain values affect the following
+ samples */
+ decoder_flush_chunk(decoder);
+ player_lock_signal();
+ }
+ } else
+ decoder->replay_gain_serial = 0;
}
diff --git a/src/decoder_internal.c b/src/decoder_internal.c
index 7829b4d76..990d728e9 100644
--- a/src/decoder_internal.c
+++ b/src/decoder_internal.c
@@ -86,8 +86,15 @@ decoder_get_chunk(struct decoder *decoder, struct input_stream *is)
do {
decoder->chunk = music_buffer_allocate(dc->buffer);
- if (decoder->chunk != NULL)
+ if (decoder->chunk != NULL) {
+ decoder->chunk->replay_gain_serial =
+ decoder->replay_gain_serial;
+ if (decoder->replay_gain_serial != 0)
+ decoder->chunk->replay_gain_info =
+ decoder->replay_gain_info;
+
return decoder->chunk;
+ }
decoder_lock(dc);
cmd = need_chunks(dc, is, true);
diff --git a/src/decoder_internal.h b/src/decoder_internal.h
index 159b40b92..9e7e2037a 100644
--- a/src/decoder_internal.h
+++ b/src/decoder_internal.h
@@ -22,6 +22,7 @@
#include "decoder_command.h"
#include "pcm_convert.h"
+#include "replay_gain_info.h"
struct input_stream;
@@ -53,7 +54,13 @@ struct decoder {
/** the chunk currently being written to */
struct music_chunk *chunk;
- struct replay_gain_state *replay_gain;
+ struct replay_gain_info replay_gain_info;
+
+ /**
+ * A positive serial number for checking if replay gain info
+ * has changed since the last check.
+ */
+ unsigned replay_gain_serial;
};
/**
diff --git a/src/decoder_thread.c b/src/decoder_thread.c
index 42a537ffe..99fa2c7e2 100644
--- a/src/decoder_thread.c
+++ b/src/decoder_thread.c
@@ -31,8 +31,6 @@
#include "mapper.h"
#include "path.h"
#include "uri.h"
-#include "replay_gain_state.h"
-#include "replay_gain_config.h"
#include <glib.h>
@@ -351,8 +349,6 @@ decoder_run_song(struct decoder_control *dc,
{
struct decoder decoder = {
.dc = dc,
- .replay_gain = replay_gain_state_new(replay_gain_preamp,
- replay_gain_missing_preamp),
};
int ret;
@@ -380,8 +376,6 @@ decoder_run_song(struct decoder_control *dc,
pcm_convert_deinit(&decoder.conv_state);
/* flush the last chunk */
- if (decoder.replay_gain != NULL)
- replay_gain_state_free(decoder.replay_gain);
if (decoder.chunk != NULL)
decoder_flush_chunk(&decoder);
diff --git a/src/filter/replay_gain_filter_plugin.c b/src/filter/replay_gain_filter_plugin.c
new file mode 100644
index 000000000..396f185cc
--- /dev/null
+++ b/src/filter/replay_gain_filter_plugin.c
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2003-2010 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 "filter/replay_gain_filter_plugin.h"
+#include "filter_plugin.h"
+#include "filter_internal.h"
+#include "filter_registry.h"
+#include "audio_format.h"
+#include "pcm_buffer.h"
+#include "pcm_volume.h"
+#include "replay_gain_info.h"
+#include "replay_gain_config.h"
+
+#include <string.h>
+
+#undef G_LOG_DOMAIN
+#define G_LOG_DOMAIN "replay_gain"
+
+struct replay_gain_filter {
+ struct filter filter;
+
+ enum replay_gain_mode mode;
+
+ struct replay_gain_info info;
+
+ /**
+ * The current volume, between 0 and #PCM_VOLUME_1 (both
+ * including).
+ */
+ unsigned volume;
+
+ struct audio_format audio_format;
+
+ struct pcm_buffer buffer;
+};
+
+static inline GQuark
+replay_gain_quark(void)
+{
+ return g_quark_from_static_string("replay_gain");
+}
+
+/**
+ * Recalculates the new volume after a property was changed.
+ */
+static void
+replay_gain_filter_update(struct replay_gain_filter *filter)
+{
+ if (filter->mode != REPLAY_GAIN_OFF) {
+ const struct replay_gain_tuple *tuple =
+ &filter->info.tuples[filter->mode];
+ float scale = replay_gain_tuple_defined(tuple)
+ ? replay_gain_tuple_scale(tuple, replay_gain_preamp)
+ : replay_gain_missing_preamp;
+ g_debug("scale=%f\n", (double)scale);
+
+ filter->volume = pcm_float_to_volume(scale);
+ } else
+ filter->volume = PCM_VOLUME_1;
+}
+
+static struct filter *
+replay_gain_filter_init(G_GNUC_UNUSED const struct config_param *param,
+ G_GNUC_UNUSED GError **error_r)
+{
+ struct replay_gain_filter *filter = g_new(struct replay_gain_filter, 1);
+
+ filter_init(&filter->filter, &replay_gain_filter_plugin);
+
+ filter->mode = replay_gain_mode;
+ replay_gain_info_init(&filter->info);
+ filter->volume = PCM_VOLUME_1;
+
+ return &filter->filter;
+}
+
+static void
+replay_gain_filter_finish(struct filter *filter)
+{
+ g_free(filter);
+}
+
+static const struct audio_format *
+replay_gain_filter_open(struct filter *_filter,
+ struct audio_format *audio_format,
+ G_GNUC_UNUSED GError **error_r)
+{
+ struct replay_gain_filter *filter =
+ (struct replay_gain_filter *)_filter;
+
+ audio_format->reverse_endian = false;
+
+ filter->audio_format = *audio_format;
+ pcm_buffer_init(&filter->buffer);
+
+ return &filter->audio_format;
+}
+
+static void
+replay_gain_filter_close(struct filter *_filter)
+{
+ struct replay_gain_filter *filter =
+ (struct replay_gain_filter *)_filter;
+
+ pcm_buffer_deinit(&filter->buffer);
+}
+
+static const void *
+replay_gain_filter_filter(struct filter *_filter,
+ const void *src, size_t src_size,
+ size_t *dest_size_r, GError **error_r)
+{
+ struct replay_gain_filter *filter =
+ (struct replay_gain_filter *)_filter;
+ bool success;
+ void *dest;
+
+ /* check if the mode has been changed since the last call */
+ if (filter->mode != replay_gain_mode) {
+ filter->mode = replay_gain_mode;
+ replay_gain_filter_update(filter);
+ }
+
+ *dest_size_r = src_size;
+
+ if (filter->volume >= PCM_VOLUME_1)
+ /* optimized special case: 100% volume = no-op */
+ return src;
+
+ dest = pcm_buffer_get(&filter->buffer, src_size);
+ *dest_size_r = src_size;
+
+ if (filter->volume <= 0) {
+ /* optimized special case: 0% volume = memset(0) */
+ /* XXX is this valid for all sample formats? What
+ about floating point? */
+ memset(dest, 0, src_size);
+ return dest;
+ }
+
+ memcpy(dest, src, src_size);
+
+ success = pcm_volume(dest, src_size, &filter->audio_format,
+ filter->volume);
+ if (!success) {
+ g_set_error(error_r, replay_gain_quark(), 0,
+ "pcm_volume() has failed");
+ return NULL;
+ }
+
+ return dest;
+}
+
+const struct filter_plugin replay_gain_filter_plugin = {
+ .name = "replay_gain",
+ .init = replay_gain_filter_init,
+ .finish = replay_gain_filter_finish,
+ .open = replay_gain_filter_open,
+ .close = replay_gain_filter_close,
+ .filter = replay_gain_filter_filter,
+};
+
+void
+replay_gain_filter_set_info(struct filter *_filter,
+ const struct replay_gain_info *info)
+{
+ struct replay_gain_filter *filter =
+ (struct replay_gain_filter *)_filter;
+
+ if (info != NULL)
+ filter->info = *info;
+ else
+ replay_gain_info_init(&filter->info);
+
+ replay_gain_filter_update(filter);
+}
diff --git a/src/replay_gain_state.h b/src/filter/replay_gain_filter_plugin.h
index bf687aa05..4ab9f42a6 100644
--- a/src/replay_gain_state.h
+++ b/src/filter/replay_gain_filter_plugin.h
@@ -17,34 +17,21 @@
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#ifndef MPD_REPLAY_GAIN_STATE_H
-#define MPD_REPLAY_GAIN_STATE_H
+#ifndef REPLAY_GAIN_FILTER_PLUGIN_H
+#define REPLAY_GAIN_FILTER_PLUGIN_H
-#include "check.h"
#include "replay_gain_info.h"
-#include <stddef.h>
-
-struct replay_gain_state;
-struct audio_format;
-
-struct replay_gain_state *
-replay_gain_state_new(float preamp, float missing_preamp);
-
-void
-replay_gain_state_free(struct replay_gain_state *state);
-
-void
-replay_gain_state_set_mode(struct replay_gain_state *state,
- enum replay_gain_mode mode);
-
-void
-replay_gain_state_set_info(struct replay_gain_state *state,
- const struct replay_gain_info *info);
+struct filter;
+/**
+ * Sets a new #replay_gain_info at the beginning of a new song.
+ *
+ * @param info the new #replay_gain_info value, or NULL if no replay
+ * gain data is available for the current song
+ */
void
-replay_gain_state_apply(const struct replay_gain_state *state,
- void *buffer, size_t size,
- const struct audio_format *format);
+replay_gain_filter_set_info(struct filter *filter,
+ const struct replay_gain_info *info);
#endif
diff --git a/src/filter_registry.c b/src/filter_registry.c
index 577e69bad..150043cc5 100644
--- a/src/filter_registry.c
+++ b/src/filter_registry.c
@@ -29,6 +29,7 @@ const struct filter_plugin *const filter_plugins[] = {
&route_filter_plugin,
&normalize_filter_plugin,
&volume_filter_plugin,
+ &replay_gain_filter_plugin,
NULL,
};
diff --git a/src/filter_registry.h b/src/filter_registry.h
index 938afefb3..551a7afa1 100644
--- a/src/filter_registry.h
+++ b/src/filter_registry.h
@@ -32,6 +32,7 @@ extern const struct filter_plugin convert_filter_plugin;
extern const struct filter_plugin route_filter_plugin;
extern const struct filter_plugin normalize_filter_plugin;
extern const struct filter_plugin volume_filter_plugin;
+extern const struct filter_plugin replay_gain_filter_plugin;
const struct filter_plugin *
filter_plugin_by_name(const char *name);
diff --git a/src/output_init.c b/src/output_init.c
index 2ce6b30f9..387915ddc 100644
--- a/src/output_init.c
+++ b/src/output_init.c
@@ -194,6 +194,17 @@ audio_output_init(struct audio_output *ao, const struct config_param *param,
ao->filter = filter_chain_new();
assert(ao->filter != NULL);
+ /* create the replay_gain filter */
+
+ ao->replay_gain_filter = filter_new(&replay_gain_filter_plugin,
+ param, NULL);
+ assert(ao->replay_gain_filter != NULL);
+
+ filter_chain_append(ao->filter, ao->replay_gain_filter);
+ ao->replay_gain_serial = 0;
+
+ /* create the normalization filter (if configured) */
+
if (config_get_bool(CONF_VOLUME_NORMALIZATION, false)) {
struct filter *normalize_filter =
filter_new(&normalize_filter_plugin, NULL, NULL);
diff --git a/src/output_internal.h b/src/output_internal.h
index 804fd8cdc..2a438c62f 100644
--- a/src/output_internal.h
+++ b/src/output_internal.h
@@ -135,6 +135,18 @@ struct audio_output {
struct filter *filter;
/**
+ * The replay_gain_filter_plugin instance of this audio
+ * output.
+ */
+ struct filter *replay_gain_filter;
+
+ /**
+ * The serial number of the last replay gain info. 0 means no
+ * replay gain info was available.
+ */
+ unsigned replay_gain_serial;
+
+ /**
* The convert_filter_plugin instance of this audio output.
* It is the last item in the filter chain, and is responsible
* for converting the input data into the appropriate format
diff --git a/src/output_thread.c b/src/output_thread.c
index eb44d4c87..0e34c64b7 100644
--- a/src/output_thread.c
+++ b/src/output_thread.c
@@ -26,6 +26,7 @@
#include "player_control.h"
#include "filter_plugin.h"
#include "filter/convert_filter_plugin.h"
+#include "filter/replay_gain_filter_plugin.h"
#include <glib.h>
@@ -261,6 +262,16 @@ ao_play_chunk(struct audio_output *ao, const struct music_chunk *chunk)
g_mutex_lock(ao->mutex);
}
+ /* update replay gain */
+
+ if (chunk->replay_gain_serial != ao->replay_gain_serial) {
+ replay_gain_filter_set_info(ao->replay_gain_filter,
+ chunk->replay_gain_serial != 0
+ ? &chunk->replay_gain_info
+ : NULL);
+ ao->replay_gain_serial = chunk->replay_gain_serial;
+ }
+
if (size == 0)
return true;
diff --git a/src/replay_gain_state.c b/src/replay_gain_state.c
deleted file mode 100644
index cfb2ce120..000000000
--- a/src/replay_gain_state.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * Copyright (C) 2003-2010 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 "replay_gain_state.h"
-#include "pcm_volume.h"
-
-#include <glib.h>
-
-#include <assert.h>
-
-struct replay_gain_state {
- float preamp, missing_preamp;
-
- enum replay_gain_mode mode;
-
- struct replay_gain_info info;
-
- float scale;
-};
-
-struct replay_gain_state *
-replay_gain_state_new(float preamp, float missing_preamp)
-{
- struct replay_gain_state *state = g_new(struct replay_gain_state, 1);
-
- state->preamp = preamp;
- state->scale = state->missing_preamp = missing_preamp;
- state->mode = REPLAY_GAIN_OFF;
- replay_gain_info_init(&state->info);
-
- return state;
-}
-
-void
-replay_gain_state_free(struct replay_gain_state *state)
-{
- assert(state != NULL);
-
- g_free(state);
-}
-
-static void
-replay_gain_state_calc_scale(struct replay_gain_state *state)
-{
- assert(state != NULL);
-
- if (state->mode == REPLAY_GAIN_OFF)
- return;
-
- const struct replay_gain_tuple *tuple =
- &state->info.tuples[state->mode];
- if (replay_gain_tuple_defined(tuple)) {
- g_debug("computing ReplayGain scale with gain %f, peak %f",
- tuple->gain, tuple->peak);
-
- state->scale = replay_gain_tuple_scale(tuple, state->preamp);
- } else
- state->scale = state->missing_preamp;
-}
-
-void
-replay_gain_state_set_mode(struct replay_gain_state *state,
- enum replay_gain_mode mode)
-{
- assert(state != NULL);
-
- if (mode == state->mode)
- return;
-
- state->mode = mode;
-
- replay_gain_state_calc_scale(state);
-}
-
-void
-replay_gain_state_set_info(struct replay_gain_state *state,
- const struct replay_gain_info *info)
-{
- assert(state != NULL);
-
- if (info != NULL)
- state->info = *info;
- else
- replay_gain_info_init(&state->info);
-
- replay_gain_state_calc_scale(state);
-}
-
-void
-replay_gain_state_apply(const struct replay_gain_state *state,
- void *buffer, size_t size,
- const struct audio_format *format)
-{
- assert(state != NULL);
-
- if (state->mode == REPLAY_GAIN_OFF)
- return;
-
- pcm_volume(buffer, size, format, pcm_float_to_volume(state->scale));
-}
diff --git a/test/run_filter.c b/test/run_filter.c
index 9b4d79510..dd22312d5 100644
--- a/test/run_filter.c
+++ b/test/run_filter.c
@@ -23,6 +23,7 @@
#include "audio_format.h"
#include "filter_plugin.h"
#include "pcm_volume.h"
+#include "idle.h"
#include <glib.h>
@@ -31,6 +32,11 @@
#include <errno.h>
#include <unistd.h>
+void
+idle_add(G_GNUC_UNUSED unsigned flags)
+{
+}
+
static void
my_log_func(const gchar *log_domain, G_GNUC_UNUSED GLogLevelFlags log_level,
const gchar *message, G_GNUC_UNUSED gpointer user_data)
diff --git a/test/run_output.c b/test/run_output.c
index 774ce99f9..6e0fffbd0 100644
--- a/test/run_output.c
+++ b/test/run_output.c
@@ -26,6 +26,7 @@
#include "filter_registry.h"
#include "pcm_convert.h"
#include "event_pipe.h"
+#include "idle.h"
#include <glib.h>
@@ -34,6 +35,11 @@
#include <unistd.h>
void
+idle_add(G_GNUC_UNUSED unsigned flags)
+{
+}
+
+void
event_pipe_emit(G_GNUC_UNUSED enum pipe_event event)
{
}