1 files changed, 74 insertions, 25 deletions

diff --git a/src/pulsecore/source-output.h b/src/pulsecore/source-output.h
index d6da8d00..61825b22 100644
--- a/src/pulsecore/source-output.h
+++ b/src/pulsecore/source-output.h
@@ -1,8 +1,6 @@
 #ifndef foopulsesourceoutputhfoo
 #define foopulsesourceoutputhfoo
 
-/* $Id$ */
-
 /***
   This file is part of PulseAudio.
 
@@ -42,7 +40,7 @@ typedef enum pa_source_output_state {
     PA_SOURCE_OUTPUT_UNLINKED
 } pa_source_output_state_t;
 
-static inline pa_bool_t PA_SOURCE_OUTPUT_LINKED(pa_source_output_state_t x) {
+static inline pa_bool_t PA_SOURCE_OUTPUT_IS_LINKED(pa_source_output_state_t x) {
     return x == PA_SOURCE_OUTPUT_RUNNING || x == PA_SOURCE_OUTPUT_CORKED;
 }
 
@@ -62,21 +60,45 @@ struct pa_source_output {
 
     uint32_t index;
     pa_core *core;
+
     pa_source_output_state_t state;
     pa_source_output_flags_t flags;
 
-    char *name, *driver;                  /* may be NULL */
+    char *driver;                         /* may be NULL */
+    pa_proplist *proplist;
+
     pa_module *module;                    /* may be NULL */
     pa_client *client;                    /* may be NULL */
 
     pa_source *source;
 
+    /* A source output can monitor just a single input of a sink, in which case we find it here */
+    pa_sink_input *direct_on_input;       /* may be NULL */
+
     pa_sample_spec sample_spec;
     pa_channel_map channel_map;
 
+    pa_resample_method_t resample_method;
+
     /* Pushes a new memchunk into the output. Called from IO thread
      * context. */
-    void (*push)(pa_source_output *o, const pa_memchunk *chunk);
+    void (*push)(pa_source_output *o, const pa_memchunk *chunk); /* may NOT be NULL */
+
+    /* Only relevant for monitor sources right now: called when the
+     * recorded stream is rewound. Called from IO context */
+    void (*process_rewind)(pa_source_output *o, size_t nbytes); /* may be NULL */
+
+    /* Called whenever the maximum rewindable size of the source
+     * changes. Called from IO thread context. */
+    void (*update_max_rewind) (pa_source_output *o, size_t nbytes); /* may be NULL */
+
+    /* Called whenever the configured latency of the source
+     * changes. Called from IO context. */
+    void (*update_source_requested_latency) (pa_source_output *o); /* may be NULL */
+
+    /* Called whenver the latency range of the source changes. Called
+     * from IO context. */
+    void (*update_source_latency_range) (pa_source_output *o); /* may be NULL */
 
     /* If non-NULL this function is called when the output is first
      * connected to a source. Called from IO thread context */
@@ -87,24 +109,26 @@ struct pa_source_output {
     void (*detach) (pa_source_output *o);           /* may be NULL */
 
     /* If non-NULL called whenever the the source this output is attached
-     * to changes. Called from main context */
-    void (*moved) (pa_source_output *o);   /* may be NULL */
-
-    /* If non-NULL called whenever the the source this output is attached
      * to suspends or resumes. Called from main context */
     void (*suspend) (pa_source_output *o, pa_bool_t b);   /* may be NULL */
 
+    /* If non-NULL called whenever the the source this output is attached
+     * to changes. Called from main context */
+    void (*moved) (pa_source_output *o);   /* may be NULL */
+
     /* Supposed to unlink and destroy this stream. Called from main
      * context. */
-    void (*kill)(pa_source_output* o);              /* may be NULL */
+    void (*kill)(pa_source_output* o);              /* may NOT be NULL */
 
     /* Return the current latency (i.e. length of bufferd audio) of
-    this stream. Called from main context. If NULL a
-    PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY message is sent to the IO
-    thread instead. */
+    this stream. Called from main context. This is added to what the
+    PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY message sent to the IO thread
+    returns */
     pa_usec_t (*get_latency) (pa_source_output *o); /* may be NULL */
 
-    pa_resample_method_t resample_method;
+    /* If non_NULL this function is called from thread context if the
+     * state changes. The old state is found in thread_info.state.  */
+    void (*state_change) (pa_source_output *o, pa_source_output_state_t state); /* may be NULL */
 
     struct {
         pa_source_output_state_t state;
@@ -114,6 +138,15 @@ struct pa_source_output {
         pa_sample_spec sample_spec;
 
         pa_resampler* resampler;              /* may be NULL */
+
+        /* We maintain a delay memblockq here for source outputs that
+         * don't implement rewind() */
+        pa_memblockq *delay_memblockq;
+
+        /* The requested latency for the source */
+        pa_usec_t requested_source_latency;
+
+        pa_sink_input *direct_on_input;       /* may be NULL */
     } thread_info;
 
     void *userdata;
@@ -126,11 +159,16 @@ enum {
     PA_SOURCE_OUTPUT_MESSAGE_GET_LATENCY,
     PA_SOURCE_OUTPUT_MESSAGE_SET_RATE,
     PA_SOURCE_OUTPUT_MESSAGE_SET_STATE,
+    PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY,
+    PA_SOURCE_OUTPUT_MESSAGE_GET_REQUESTED_LATENCY,
     PA_SOURCE_OUTPUT_MESSAGE_MAX
 };
 
 typedef struct pa_source_output_new_data {
-    const char *name, *driver;
+    pa_proplist *proplist;
+    pa_sink_input *direct_on_input;
+
+    const char *driver;
     pa_module *module;
     pa_client *client;
 
@@ -144,16 +182,16 @@ typedef struct pa_source_output_new_data {
     pa_resample_method_t resample_method;
 } pa_source_output_new_data;
 
+pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_data *data);
+void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data *data, const pa_sample_spec *spec);
+void pa_source_output_new_data_set_channel_map(pa_source_output_new_data *data, const pa_channel_map *map);
+void pa_source_output_new_data_done(pa_source_output_new_data *data);
+
 typedef struct pa_source_output_move_hook_data {
     pa_source_output *source_output;
     pa_source *destination;
 } pa_source_output_move_hook_data;
 
-pa_source_output_new_data* pa_source_output_new_data_init(pa_source_output_new_data *data);
-void pa_source_output_new_data_set_sample_spec(pa_source_output_new_data *data, const pa_sample_spec *spec);
-void pa_source_output_new_data_set_channel_map(pa_source_output_new_data *data, const pa_channel_map *map);
-void pa_source_output_new_data_set_volume(pa_source_output_new_data *data, const pa_cvolume *volume);
-
 /* To be called by the implementing module only */
 
 pa_source_output* pa_source_output_new(
@@ -166,16 +204,18 @@ void pa_source_output_unlink(pa_source_output*o);
 
 void pa_source_output_set_name(pa_source_output *i, const char *name);
 
+pa_usec_t pa_source_output_set_requested_latency(pa_source_output *i, pa_usec_t usec);
+
+void pa_source_output_cork(pa_source_output *i, pa_bool_t b);
+
+int pa_source_output_set_rate(pa_source_output *o, uint32_t rate);
+
 /* Callable by everyone */
 
 /* External code may request disconnection with this funcion */
 void pa_source_output_kill(pa_source_output*o);
 
-pa_usec_t pa_source_output_get_latency(pa_source_output *i);
-
-void pa_source_output_cork(pa_source_output *i, pa_bool_t b);
-
-int pa_source_output_set_rate(pa_source_output *o, uint32_t rate);
+pa_usec_t pa_source_output_get_latency(pa_source_output *i, pa_usec_t *source_latency);
 
 pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o);
 
@@ -183,9 +223,18 @@ int pa_source_output_move_to(pa_source_output *o, pa_source *dest);
 
 #define pa_source_output_get_state(o) ((o)->state)
 
+pa_usec_t pa_source_output_get_requested_latency(pa_source_output *o);
+
 /* To be used exclusively by the source driver thread */
 
 void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk);
+void pa_source_output_process_rewind(pa_source_output *o, size_t nbytes);
+void pa_source_output_update_max_rewind(pa_source_output *o, size_t nbytes);
+
+void pa_source_output_set_state_within_thread(pa_source_output *o, pa_source_output_state_t state);
+
 int pa_source_output_process_msg(pa_msgobject *mo, int code, void *userdata, int64_t offset, pa_memchunk *chunk);
 
+pa_usec_t pa_source_output_set_requested_latency_within_thread(pa_source_output *o, pa_usec_t usec);
+
 #endif