sink, source: Assign to reference_volume from only one place

[pulseaudio] / src / pulsecore / source.h

diff --git a/src/pulsecore/source.h b/src/pulsecore/source.h
index 479cade228d15fd9128d22db752c81c7bfb2431b..63185950dffc6d3cbaf78a5580c70da802776ba3 100644 (file)
--- a/src/pulsecore/source.h
+++ b/src/pulsecore/source.h
@@ -9,7 +9,7 @@
 
   PulseAudio is free software; you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as published
 
   PulseAudio is free software; you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as published

-  by the Free Software Foundation; either version 2 of the License,
+  by the Free Software Foundation; either version 2.1 of the License,

   or (at your option) any later version.
 
   PulseAudio is distributed in the hope that it will be useful, but
   or (at your option) any later version.
 
   PulseAudio is distributed in the hope that it will be useful, but


@@ -24,40 +24,49 @@
 ***/
 
 typedef struct pa_source pa_source;
 ***/
 
 typedef struct pa_source pa_source;

+typedef struct pa_source_volume_change pa_source_volume_change;

 
 #include <inttypes.h>
 
 
 #include <inttypes.h>
 

+#include <pulse/def.h>
+#include <pulse/format.h>

 #include <pulse/sample.h>
 #include <pulse/channelmap.h>
 #include <pulse/volume.h>
 
 #include <pulsecore/core.h>
 #include <pulsecore/idxset.h>
 #include <pulse/sample.h>
 #include <pulse/channelmap.h>
 #include <pulse/volume.h>
 
 #include <pulsecore/core.h>
 #include <pulsecore/idxset.h>

-#include <pulsecore/memblock.h>

 #include <pulsecore/memchunk.h>
 #include <pulsecore/sink.h>
 #include <pulsecore/module.h>
 #include <pulsecore/asyncmsgq.h>
 #include <pulsecore/msgobject.h>
 #include <pulsecore/rtpoll.h>
 #include <pulsecore/memchunk.h>
 #include <pulsecore/sink.h>
 #include <pulsecore/module.h>
 #include <pulsecore/asyncmsgq.h>
 #include <pulsecore/msgobject.h>
 #include <pulsecore/rtpoll.h>

-#include <pulsecore/source-output.h>

 #include <pulsecore/card.h>
 #include <pulsecore/card.h>

+#include <pulsecore/device-port.h>

 #include <pulsecore/queue.h>
 #include <pulsecore/queue.h>

+#include <pulsecore/thread-mq.h>
+#include <pulsecore/source-output.h>

 
 

-#define PA_MAX_OUTPUTS_PER_SOURCE 32
+#define PA_MAX_OUTPUTS_PER_SOURCE 256

 
 /* Returns true if source is linked: registered and accessible from client side. */
 
 /* Returns true if source is linked: registered and accessible from client side. */

-static inline pa_bool_t PA_SOURCE_IS_LINKED(pa_source_state_t x) {
+static inline bool PA_SOURCE_IS_LINKED(pa_source_state_t x) {

     return x == PA_SOURCE_RUNNING || x == PA_SOURCE_IDLE || x == PA_SOURCE_SUSPENDED;
 }
 
     return x == PA_SOURCE_RUNNING || x == PA_SOURCE_IDLE || x == PA_SOURCE_SUSPENDED;
 }
 

+/* A generic definition for void callback functions */
+typedef void(*pa_source_cb_t)(pa_source *s);
+

 struct pa_source {
     pa_msgobject parent;
 
     uint32_t index;
     pa_core *core;
 struct pa_source {
     pa_msgobject parent;
 
     uint32_t index;
     pa_core *core;

+

     pa_source_state_t state;
     pa_source_flags_t flags;
     pa_source_state_t state;
     pa_source_flags_t flags;

+    pa_suspend_cause_t suspend_cause;

 
     char *name;
     char *driver;                             /* may be NULL */
 
     char *name;
     char *driver;                             /* may be NULL */


@@ -68,64 +77,130 @@ struct pa_source {
 
     pa_sample_spec sample_spec;
     pa_channel_map channel_map;
 
     pa_sample_spec sample_spec;
     pa_channel_map channel_map;

+    uint32_t default_sample_rate;
+    uint32_t alternate_sample_rate;

 
     pa_idxset *outputs;
     unsigned n_corked;
     pa_sink *monitor_of;                     /* may be NULL */
 
     pa_idxset *outputs;
     unsigned n_corked;
     pa_sink *monitor_of;                     /* may be NULL */

-
-    pa_cvolume volume;
-    pa_bool_t muted;
+    pa_source_output *output_from_master;    /* non-NULL only for filter sources */

 
     pa_volume_t base_volume; /* shall be constant */
 
     pa_volume_t base_volume; /* shall be constant */

+    unsigned n_volume_steps; /* shall be constant */

 
 

-    pa_bool_t refresh_volume:1;
-    pa_bool_t refresh_muted:1;
+    /* Also see http://pulseaudio.org/wiki/InternalVolumes */
+    pa_cvolume reference_volume; /* The volume exported and taken as reference base for relative source output volumes */
+    pa_cvolume real_volume;      /* The volume that the hardware is configured to  */
+    pa_cvolume soft_volume;      /* The internal software volume we apply to all PCM data while it passes through */
+
+    bool muted:1;
+
+    bool refresh_volume:1;
+    bool refresh_muted:1;
+    bool save_port:1;
+    bool save_volume:1;
+    bool save_muted:1;
+
+    /* Saved volume state while we're in passthrough mode */
+    pa_cvolume saved_volume;
+    bool saved_save_volume:1;

 
     pa_asyncmsgq *asyncmsgq;
 
     pa_asyncmsgq *asyncmsgq;

-    pa_rtpoll *rtpoll;

 
     pa_memchunk silence;
 
 
     pa_memchunk silence;
 

+    pa_hashmap *ports;
+    pa_device_port *active_port;
+    pa_atomic_t mixer_dirty;
+
+    /* The latency offset is inherited from the currently active port */
+    int64_t latency_offset;
+
+    unsigned priority;
+

     /* Called when the main loop requests a state change. Called from
      * main loop context. If returns -1 the state change will be
      * inhibited */
     int (*set_state)(pa_source*source, pa_source_state_t state); /* may be NULL */
 
     /* Called when the main loop requests a state change. Called from
      * main loop context. If returns -1 the state change will be
      * inhibited */
     int (*set_state)(pa_source*source, pa_source_state_t state); /* may be NULL */
 

-    /* Callled when the volume is queried. Called from main loop
+    /* Called when the volume is queried. Called from main loop

      * context. If this is NULL a PA_SOURCE_MESSAGE_GET_VOLUME message
      * will be sent to the IO thread instead. If refresh_volume is
      * context. If this is NULL a PA_SOURCE_MESSAGE_GET_VOLUME message
      * will be sent to the IO thread instead. If refresh_volume is

-     * FALSE neither this function is called nor a message is sent. */
-    int (*get_volume)(pa_source *s);         /* dito */
+     * false neither this function is called nor a message is sent.
+     *
+     * You must use the function pa_source_set_get_volume_callback() to
+     * set this callback. */
+    pa_source_cb_t get_volume; /* may be NULL */

 
     /* Called when the volume shall be changed. Called from main loop
      * context. If this is NULL a PA_SOURCE_MESSAGE_SET_VOLUME message
 
     /* Called when the volume shall be changed. Called from main loop
      * context. If this is NULL a PA_SOURCE_MESSAGE_SET_VOLUME message

-     * will be sent to the IO thread instead. */
-    int (*set_volume)(pa_source *s);         /* dito */
+     * will be sent to the IO thread instead.
+     *
+     * You must use the function pa_source_set_set_volume_callback() to
+     * set this callback. */
+    pa_source_cb_t set_volume; /* may be NULL */
+
+    /* Source drivers that set PA_SOURCE_DEFERRED_VOLUME must provide this
+     * callback. This callback is not used with source that do not set
+     * PA_SOURCE_DEFERRED_VOLUME. This is called from the IO thread when a
+     * pending hardware volume change has to be written to the
+     * hardware. The requested volume is passed to the callback
+     * implementation in s->thread_info.current_hw_volume.
+     *
+     * The call is done inside pa_source_volume_change_apply(), which is
+     * not called automatically - it is the driver's responsibility to
+     * schedule that function to be called at the right times in the
+     * IO thread.
+     *
+     * You must use the function pa_source_set_write_volume_callback() to
+     * set this callback. */
+    pa_source_cb_t write_volume; /* may be NULL */

 
     /* Called when the mute setting is queried. Called from main loop
      * context. If this is NULL a PA_SOURCE_MESSAGE_GET_MUTE message
      * will be sent to the IO thread instead. If refresh_mute is
 
     /* Called when the mute setting is queried. Called from main loop
      * context. If this is NULL a PA_SOURCE_MESSAGE_GET_MUTE message
      * will be sent to the IO thread instead. If refresh_mute is

-     * FALSE neither this function is called nor a message is sent.*/
-    int (*get_mute)(pa_source *s);           /* dito */
+     * false neither this function is called nor a message is sent.
+     *
+     * You must use the function pa_source_set_get_mute_callback() to
+     * set this callback. */
+    pa_source_cb_t get_mute; /* may be NULL */

 
     /* Called when the mute setting shall be changed. Called from main
      * loop context. If this is NULL a PA_SOURCE_MESSAGE_SET_MUTE
 
     /* Called when the mute setting shall be changed. Called from main
      * loop context. If this is NULL a PA_SOURCE_MESSAGE_SET_MUTE

-     * message will be sent to the IO thread instead. */
-    int (*set_mute)(pa_source *s);           /* dito */
+     * message will be sent to the IO thread instead.
+     *
+     * You must use the function pa_source_set_set_mute_callback() to
+     * set this callback. */
+    pa_source_cb_t set_mute; /* may be NULL */

 
     /* Called when a the requested latency is changed. Called from IO
      * thread context. */
 
     /* Called when a the requested latency is changed. Called from IO
      * thread context. */

-    void (*update_requested_latency)(pa_source *s); /* dito */
+    pa_source_cb_t update_requested_latency; /* may be NULL */
+
+    /* Called whenever the port shall be changed. Called from IO
+     * thread if deferred volumes are enabled, and main thread otherwise. */
+    int (*set_port)(pa_source *s, pa_device_port *port); /*ditto */
+
+    /* Called to get the list of formats supported by the source, sorted
+     * in descending order of preference. */
+    pa_idxset* (*get_formats)(pa_source *s); /* ditto */
+
+    /* Called whenever the sampling frequency shall be changed. Called from
+     * main thread. */
+    int (*update_rate)(pa_source *s, uint32_t rate);

 
     /* Contains copies of the above data so that the real-time worker
      * thread can work without access locking */
     struct {
         pa_source_state_t state;
         pa_hashmap *outputs;
 
     /* Contains copies of the above data so that the real-time worker
      * thread can work without access locking */
     struct {
         pa_source_state_t state;
         pa_hashmap *outputs;

+
+        pa_rtpoll *rtpoll;
+

         pa_cvolume soft_volume;
         pa_cvolume soft_volume;

-        pa_bool_t soft_muted:1;
+        bool soft_muted:1;

 
 

-        pa_bool_t requested_latency_valid:1;
+        bool requested_latency_valid:1;

         pa_usec_t requested_latency;
 
         /* Then number of bytes this source will be rewound for at
         pa_usec_t requested_latency;
 
         /* Then number of bytes this source will be rewound for at


@@ -134,33 +209,62 @@ struct pa_source {
 
         pa_usec_t min_latency; /* we won't go below this latency */
         pa_usec_t max_latency; /* An upper limit for the latencies */
 
         pa_usec_t min_latency; /* we won't go below this latency */
         pa_usec_t max_latency; /* An upper limit for the latencies */

+
+        pa_usec_t fixed_latency; /* for sources with PA_SOURCE_DYNAMIC_LATENCY this is 0 */
+
+        /* This latency offset is a direct copy from s->latency_offset */
+        int64_t latency_offset;
+
+        /* Delayed volume change events are queued here. The events
+         * are stored in expiration order. The one expiring next is in
+         * the head of the list. */
+        PA_LLIST_HEAD(pa_source_volume_change, volume_changes);
+        pa_source_volume_change *volume_changes_tail;
+        /* This value is updated in pa_source_volume_change_apply() and
+         * used only by sources with PA_SOURCE_DEFERRED_VOLUME. */
+        pa_cvolume current_hw_volume;
+
+        /* The amount of usec volume up events are delayed and volume
+         * down events are made earlier. */
+        uint32_t volume_change_safety_margin;
+        /* Usec delay added to all volume change events, may be negative. */
+        int32_t volume_change_extra_delay;

     } thread_info;
 
     void *userdata;
 };
 
     } thread_info;
 
     void *userdata;
 };
 

-PA_DECLARE_CLASS(pa_source);
+PA_DECLARE_PUBLIC_CLASS(pa_source);

 #define PA_SOURCE(s) pa_source_cast(s)
 
 typedef enum pa_source_message {
     PA_SOURCE_MESSAGE_ADD_OUTPUT,
     PA_SOURCE_MESSAGE_REMOVE_OUTPUT,
     PA_SOURCE_MESSAGE_GET_VOLUME,
 #define PA_SOURCE(s) pa_source_cast(s)
 
 typedef enum pa_source_message {
     PA_SOURCE_MESSAGE_ADD_OUTPUT,
     PA_SOURCE_MESSAGE_REMOVE_OUTPUT,
     PA_SOURCE_MESSAGE_GET_VOLUME,

+    PA_SOURCE_MESSAGE_SET_SHARED_VOLUME,
+    PA_SOURCE_MESSAGE_SET_VOLUME_SYNCED,

     PA_SOURCE_MESSAGE_SET_VOLUME,
     PA_SOURCE_MESSAGE_SET_VOLUME,

+    PA_SOURCE_MESSAGE_SYNC_VOLUMES,

     PA_SOURCE_MESSAGE_GET_MUTE,
     PA_SOURCE_MESSAGE_SET_MUTE,
     PA_SOURCE_MESSAGE_GET_LATENCY,
     PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY,
     PA_SOURCE_MESSAGE_SET_STATE,
     PA_SOURCE_MESSAGE_GET_MUTE,
     PA_SOURCE_MESSAGE_SET_MUTE,
     PA_SOURCE_MESSAGE_GET_LATENCY,
     PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY,
     PA_SOURCE_MESSAGE_SET_STATE,

-    PA_SOURCE_MESSAGE_ATTACH,
-    PA_SOURCE_MESSAGE_DETACH,

     PA_SOURCE_MESSAGE_SET_LATENCY_RANGE,
     PA_SOURCE_MESSAGE_GET_LATENCY_RANGE,
     PA_SOURCE_MESSAGE_SET_LATENCY_RANGE,
     PA_SOURCE_MESSAGE_GET_LATENCY_RANGE,

+    PA_SOURCE_MESSAGE_SET_FIXED_LATENCY,
+    PA_SOURCE_MESSAGE_GET_FIXED_LATENCY,

     PA_SOURCE_MESSAGE_GET_MAX_REWIND,
     PA_SOURCE_MESSAGE_GET_MAX_REWIND,

+    PA_SOURCE_MESSAGE_SET_MAX_REWIND,
+    PA_SOURCE_MESSAGE_SET_PORT,
+    PA_SOURCE_MESSAGE_UPDATE_VOLUME_AND_MUTE,
+    PA_SOURCE_MESSAGE_SET_LATENCY_OFFSET,

     PA_SOURCE_MESSAGE_MAX
 } pa_source_message_t;
 
 typedef struct pa_source_new_data {
     PA_SOURCE_MESSAGE_MAX
 } pa_source_message_t;
 
 typedef struct pa_source_new_data {

+    pa_suspend_cause_t suspend_cause;
+

     char *name;
     pa_proplist *proplist;
 
     char *name;
     pa_proplist *proplist;
 


@@ -168,34 +272,52 @@ typedef struct pa_source_new_data {
     pa_module *module;
     pa_card *card;
 
     pa_module *module;
     pa_card *card;
 

+    pa_hashmap *ports;
+    char *active_port;
+

     pa_sample_spec sample_spec;
     pa_channel_map channel_map;
     pa_sample_spec sample_spec;
     pa_channel_map channel_map;

+    uint32_t alternate_sample_rate;

     pa_cvolume volume;
     pa_cvolume volume;

-    pa_bool_t muted:1;
+    bool muted:1;
+
+    bool volume_is_set:1;
+    bool muted_is_set:1;
+    bool sample_spec_is_set:1;
+    bool channel_map_is_set:1;
+    bool alternate_sample_rate_is_set:1;

 
 

-    pa_bool_t volume_is_set:1;
-    pa_bool_t muted_is_set:1;
-    pa_bool_t sample_spec_is_set:1;
-    pa_bool_t channel_map_is_set:1;
+    bool namereg_fail:1;

 
 

-    pa_bool_t namereg_fail:1;
+    bool save_port:1;
+    bool save_volume:1;
+    bool save_muted:1;

 } pa_source_new_data;
 
 pa_source_new_data* pa_source_new_data_init(pa_source_new_data *data);
 void pa_source_new_data_set_name(pa_source_new_data *data, const char *name);
 void pa_source_new_data_set_sample_spec(pa_source_new_data *data, const pa_sample_spec *spec);
 void pa_source_new_data_set_channel_map(pa_source_new_data *data, const pa_channel_map *map);
 } pa_source_new_data;
 
 pa_source_new_data* pa_source_new_data_init(pa_source_new_data *data);
 void pa_source_new_data_set_name(pa_source_new_data *data, const char *name);
 void pa_source_new_data_set_sample_spec(pa_source_new_data *data, const pa_sample_spec *spec);
 void pa_source_new_data_set_channel_map(pa_source_new_data *data, const pa_channel_map *map);

+void pa_source_new_data_set_alternate_sample_rate(pa_source_new_data *data, const uint32_t alternate_sample_rate);

 void pa_source_new_data_set_volume(pa_source_new_data *data, const pa_cvolume *volume);
 void pa_source_new_data_set_volume(pa_source_new_data *data, const pa_cvolume *volume);

-void pa_source_new_data_set_muted(pa_source_new_data *data, pa_bool_t mute);
+void pa_source_new_data_set_muted(pa_source_new_data *data, bool mute);
+void pa_source_new_data_set_port(pa_source_new_data *data, const char *port);

 void pa_source_new_data_done(pa_source_new_data *data);
 
 void pa_source_new_data_done(pa_source_new_data *data);
 

-/* To be called exclusively by the source driver, from main context */
+/*** To be called exclusively by the source driver, from main context */

 
 pa_source* pa_source_new(
         pa_core *core,
         pa_source_new_data *data,
         pa_source_flags_t flags);
 
 
 pa_source* pa_source_new(
         pa_core *core,
         pa_source_new_data *data,
         pa_source_flags_t flags);
 

+void pa_source_set_get_volume_callback(pa_source *s, pa_source_cb_t cb);
+void pa_source_set_set_volume_callback(pa_source *s, pa_source_cb_t cb);
+void pa_source_set_write_volume_callback(pa_source *s, pa_source_cb_t cb);
+void pa_source_set_get_mute_callback(pa_source *s, pa_source_cb_t cb);
+void pa_source_set_set_mute_callback(pa_source *s, pa_source_cb_t cb);
+void pa_source_enable_decibel_volume(pa_source *s, bool enable);
+

 void pa_source_put(pa_source *s);
 void pa_source_unlink(pa_source *s);
 
 void pa_source_put(pa_source *s);
 void pa_source_unlink(pa_source *s);
 


@@ -203,31 +325,59 @@ void pa_source_set_description(pa_source *s, const char *description);
 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q);
 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p);
 
 void pa_source_set_asyncmsgq(pa_source *s, pa_asyncmsgq *q);
 void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p);
 

+void pa_source_set_max_rewind(pa_source *s, size_t max_rewind);

 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency);
 void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency);

+void pa_source_set_fixed_latency(pa_source *s, pa_usec_t latency);
+
+void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume);
+void pa_source_volume_changed(pa_source *s, const pa_cvolume *new_volume);
+void pa_source_mute_changed(pa_source *s, bool new_muted);
+
+int pa_source_sync_suspend(pa_source *s);
+
+void pa_source_update_flags(pa_source *s, pa_source_flags_t mask, pa_source_flags_t value);

 
 

-void pa_source_detach(pa_source *s);
-void pa_source_attach(pa_source *s);
+/*** May be called by everyone, from main context */

 
 

-/* May be called by everyone, from main context */
+void pa_source_set_latency_offset(pa_source *s, int64_t offset);

 
 /* The returned value is supposed to be in the time domain of the sound card! */
 pa_usec_t pa_source_get_latency(pa_source *s);
 pa_usec_t pa_source_get_requested_latency(pa_source *s);
 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency);
 
 /* The returned value is supposed to be in the time domain of the sound card! */
 pa_usec_t pa_source_get_latency(pa_source *s);
 pa_usec_t pa_source_get_requested_latency(pa_source *s);
 void pa_source_get_latency_range(pa_source *s, pa_usec_t *min_latency, pa_usec_t *max_latency);

+pa_usec_t pa_source_get_fixed_latency(pa_source *s);

 
 size_t pa_source_get_max_rewind(pa_source *s);
 
 int pa_source_update_status(pa_source*s);
 
 size_t pa_source_get_max_rewind(pa_source *s);
 
 int pa_source_update_status(pa_source*s);

-int pa_source_suspend(pa_source *s, pa_bool_t suspend);
-int pa_source_suspend_all(pa_core *c, pa_bool_t suspend);
+int pa_source_suspend(pa_source *s, bool suspend, pa_suspend_cause_t cause);
+int pa_source_suspend_all(pa_core *c, bool suspend, pa_suspend_cause_t cause);

 
 

-void pa_source_set_volume(pa_source *source, const pa_cvolume *volume);
-void pa_source_set_soft_volume(pa_source *s, const pa_cvolume *volume);
-const pa_cvolume *pa_source_get_volume(pa_source *source, pa_bool_t force_refresh);
-void pa_source_set_mute(pa_source *source, pa_bool_t mute);
-pa_bool_t pa_source_get_mute(pa_source *source, pa_bool_t force_refresh);
+/* Use this instead of checking s->flags & PA_SOURCE_FLAT_VOLUME directly. */
+bool pa_source_flat_volume_enabled(pa_source *s);
+
+/* Get the master source when sharing volumes */
+pa_source *pa_source_get_master(pa_source *s);
+
+/* Is the source in passthrough mode? (that is, is this a monitor source for a sink
+ * that has a passthrough sink input connected to it. */
+bool pa_source_is_passthrough(pa_source *s);
+/* These should be called when a source enters/leaves passthrough mode */
+void pa_source_enter_passthrough(pa_source *s);
+void pa_source_leave_passthrough(pa_source *s);
+
+void pa_source_set_volume(pa_source *source, const pa_cvolume *volume, bool sendmsg, bool save);
+const pa_cvolume *pa_source_get_volume(pa_source *source, bool force_refresh);
+
+void pa_source_set_mute(pa_source *source, bool mute, bool save);
+bool pa_source_get_mute(pa_source *source, bool force_refresh);

 
 

-pa_bool_t pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p);
+bool pa_source_update_proplist(pa_source *s, pa_update_mode_t mode, pa_proplist *p);
+
+int pa_source_set_port(pa_source *s, const char *name, bool save);
+void pa_source_set_mixer_dirty(pa_source *s, bool is_dirty);
+
+int pa_source_update_rate(pa_source *s, uint32_t rate, bool passthrough);

 
 unsigned pa_source_linked_by(pa_source *s); /* Number of connected streams */
 unsigned pa_source_used_by(pa_source *s); /* Number of connected streams that are not corked */
 
 unsigned pa_source_linked_by(pa_source *s); /* Number of connected streams */
 unsigned pa_source_used_by(pa_source *s); /* Number of connected streams that are not corked */


@@ -235,11 +385,21 @@ unsigned pa_source_check_suspend(pa_source *s); /* Returns how many streams are
 #define pa_source_get_state(s) ((pa_source_state_t) (s)->state)
 
 /* Moves all inputs away, and stores them in pa_queue */
 #define pa_source_get_state(s) ((pa_source_state_t) (s)->state)
 
 /* Moves all inputs away, and stores them in pa_queue */

-pa_queue *pa_source_move_all_start(pa_source *s);
-void pa_source_move_all_finish(pa_source *s, pa_queue *q);
+pa_queue *pa_source_move_all_start(pa_source *s, pa_queue *q);
+void pa_source_move_all_finish(pa_source *s, pa_queue *q, bool save);

 void pa_source_move_all_fail(pa_queue *q);
 
 void pa_source_move_all_fail(pa_queue *q);
 

-/* To be called exclusively by the source driver, from IO context */
+/* Returns a copy of the source formats. TODO: Get rid of this function (or at
+ * least get rid of the copying). There's no good reason to copy the formats
+ * every time someone wants to know what formats the source supports. The
+ * formats idxset could be stored directly in the pa_source struct.
+ * https://bugs.freedesktop.org/show_bug.cgi?id=71924 */
+pa_idxset* pa_source_get_formats(pa_source *s);
+
+bool pa_source_check_format(pa_source *s, pa_format_info *f);
+pa_idxset* pa_source_check_formats(pa_source *s, pa_idxset *in_formats);
+
+/*** To be called exclusively by the source driver, from IO context */

 
 void pa_source_post(pa_source*s, const pa_memchunk *chunk);
 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk);
 
 void pa_source_post(pa_source*s, const pa_memchunk *chunk);
 void pa_source_post_direct(pa_source*s, pa_source_output *o, const pa_memchunk *chunk);


@@ -252,11 +412,28 @@ void pa_source_detach_within_thread(pa_source *s);
 
 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s);
 
 
 pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s);
 

-void pa_source_set_max_rewind(pa_source *s, size_t max_rewind);
-void pa_source_update_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency);
+void pa_source_set_max_rewind_within_thread(pa_source *s, size_t max_rewind);
+
+void pa_source_set_latency_range_within_thread(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency);
+void pa_source_set_fixed_latency_within_thread(pa_source *s, pa_usec_t latency);
+
+void pa_source_update_volume_and_mute(pa_source *s);
+
+bool pa_source_volume_change_apply(pa_source *s, pa_usec_t *usec_to_next);
+
+/*** To be called exclusively by source output drivers, from IO context */
+
+void pa_source_invalidate_requested_latency(pa_source *s, bool dynamic);
+pa_usec_t pa_source_get_latency_within_thread(pa_source *s);

 
 

-/* To be called exclusively by source output drivers, from IO context */
+/* Called from the main thread, from source-output.c only. The normal way to
+ * set the source reference volume is to call pa_source_set_volume(), but the
+ * flat volume logic in source-output.c needs also a function that doesn't do
+ * all the extra stuff that pa_source_set_volume() does. This function simply
+ * sets s->reference_volume and fires change notifications. */
+void pa_source_set_reference_volume_direct(pa_source *s, const pa_cvolume *volume);

 
 

-void pa_source_invalidate_requested_latency(pa_source *s);
+#define pa_source_assert_io_context(s) \
+    pa_assert(pa_thread_mq_get() || !PA_SOURCE_IS_LINKED((s)->state))

 
 #endif
 
 #endif