volume ramp: adding volume ramping to sink-input

Change-Id: I9376f531f3585c9ba5fb6d1b384589a8d123b292
Signed-off-by: Jaska Uimonen <jaska.uimonen@intel.com>

diff --git a/src/pulsecore/sink-input.c b/src/pulsecore/sink-input.c
index f85b2c7..05ab25d 100644 (file)
--- a/src/pulsecore/sink-input.c
+++ b/src/pulsecore/sink-input.c
@@ -527,6 +527,11 @@ int pa_sink_input_new(
     reset_callbacks(i);
     i->userdata = NULL;
 
+    if (data->flags & PA_SINK_INPUT_START_RAMP_MUTED)
+        pa_cvolume_ramp_int_init(&i->ramp, PA_VOLUME_MUTED, data->sink->sample_spec.channels);
+    else
+        pa_cvolume_ramp_int_init(&i->ramp, PA_VOLUME_NORM, data->sink->sample_spec.channels);
+
     i->thread_info.state = i->state;
     i->thread_info.attached = false;
     pa_atomic_store(&i->thread_info.drained, 1);
@@ -543,6 +548,8 @@ int pa_sink_input_new(
     i->thread_info.playing_for = 0;
     i->thread_info.direct_outputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
 
+    i->thread_info.ramp = i->ramp;
+
     pa_assert_se(pa_idxset_put(core->sink_inputs, i, &i->index) == 0);
     pa_assert_se(pa_idxset_put(i->sink->inputs, pa_sink_input_ref(i), NULL) == 0);
 
@@ -924,6 +931,8 @@ void pa_sink_input_peek(pa_sink_input *i, size_t slength /* in sink bytes */, pa
         while (tchunk.length > 0) {
             pa_memchunk wchunk;
             bool nvfs = need_volume_factor_sink;
+            pa_cvolume target;
+            bool tmp;
 
             wchunk = tchunk;
             pa_memblock_ref(wchunk.memblock);
@@ -960,6 +969,16 @@ void pa_sink_input_peek(pa_sink_input *i, size_t slength /* in sink bytes */, pa
                     pa_volume_memchunk(&wchunk, &i->sink->sample_spec, &i->volume_factor_sink);
                 }
 
+                /* check for possible volume ramp */
+                if (pa_cvolume_ramp_active(&i->thread_info.ramp)) {
+                    pa_memchunk_make_writable(&wchunk, 0);
+                    pa_volume_ramp_memchunk(&wchunk, &i->sink->sample_spec, &(i->thread_info.ramp));
+                } else if ((tmp = pa_cvolume_ramp_target_active(&(i->thread_info.ramp)))) {
+                    pa_memchunk_make_writable(&wchunk, 0);
+                    pa_cvolume_ramp_get_targets(&i->thread_info.ramp, &target);
+                    pa_volume_memchunk(&wchunk, &i->sink->sample_spec, &target);
+                }
+
                 pa_memblockq_push_align(i->thread_info.render_memblockq, &wchunk);
             } else {
                 pa_memchunk rchunk;
@@ -976,6 +995,16 @@ void pa_sink_input_peek(pa_sink_input *i, size_t slength /* in sink bytes */, pa
                         pa_volume_memchunk(&rchunk, &i->sink->sample_spec, &i->volume_factor_sink);
                     }
 
+                    /* check for possible volume ramp */
+                    if (pa_cvolume_ramp_active(&(i->thread_info.ramp))) {
+                        pa_memchunk_make_writable(&rchunk, 0);
+                        pa_volume_ramp_memchunk(&rchunk, &i->sink->sample_spec, &(i->thread_info.ramp));
+                    } else if (pa_cvolume_ramp_target_active(&(i->thread_info.ramp))) {
+                        pa_memchunk_make_writable(&rchunk, 0);
+                        pa_cvolume_ramp_get_targets(&i->thread_info.ramp, &target);
+                        pa_volume_memchunk(&rchunk, &i->sink->sample_spec, &target);
+                    }
+
                     pa_memblockq_push_align(i->thread_info.render_memblockq, &rchunk);
                     pa_memblock_unref(rchunk.memblock);
                 }
@@ -1351,6 +1380,29 @@ int pa_sink_input_remove_volume_factor(pa_sink_input *i, const char *key) {
     return 0;
 }
 
+/* Called from main thread */
+void pa_sink_input_set_volume_ramp(
+        pa_sink_input *i,
+        const pa_cvolume_ramp *ramp,
+        bool send_msg,
+        bool save) {
+
+    pa_sink_input_assert_ref(i);
+    pa_assert_ctl_context();
+    pa_assert(PA_SINK_INPUT_IS_LINKED(i->state));
+    pa_assert(ramp);
+
+    pa_cvolume_ramp_convert(ramp, &i->ramp, i->sample_spec.rate);
+
+    pa_log_debug("setting volume ramp with target vol:%d and length:%ld",
+                i->ramp.ramps[0].target,
+                i->ramp.ramps[0].length);
+
+    /* This tells the sink that volume ramp changed */
+    if (send_msg)
+        pa_assert_se(pa_asyncmsgq_send(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_VOLUME_RAMP, NULL, 0, NULL) == 0);
+}
+
 /* Called from main context */
 static void set_real_ratio(pa_sink_input *i, const pa_cvolume *v) {
     pa_sink_input_assert_ref(i);
@@ -1968,6 +2020,13 @@ int pa_sink_input_process_msg(pa_msgobject *o, int code, void *userdata, int64_t
             }
             return 0;
 
+        case PA_SINK_INPUT_MESSAGE_SET_VOLUME_RAMP:
+            /* we have ongoing ramp where we take current start values */
+            pa_cvolume_ramp_start_from(&i->thread_info.ramp, &i->ramp);
+            i->thread_info.ramp = i->ramp;
+            pa_sink_input_request_rewind(i, 0, TRUE, FALSE, FALSE);
+            return 0;
+
         case PA_SINK_INPUT_MESSAGE_SET_SOFT_MUTE:
             if (i->thread_info.muted != i->muted) {
                 i->thread_info.muted = i->muted;

diff --git a/src/pulsecore/sink-input.h b/src/pulsecore/sink-input.h
index da33717..3f74054 100644 (file)
--- a/src/pulsecore/sink-input.h
+++ b/src/pulsecore/sink-input.h
@@ -35,6 +35,7 @@ typedef struct pa_sink_input pa_sink_input;
 #include <pulsecore/client.h>
 #include <pulsecore/sink.h>
 #include <pulsecore/core.h>
+#include <pulsecore/mix.h>
 
 typedef enum pa_sink_input_state {
     PA_SINK_INPUT_INIT,         /*< The stream is not active yet, because pa_sink_input_put() has not been called yet */
@@ -61,7 +62,8 @@ typedef enum pa_sink_input_flags {
     PA_SINK_INPUT_DONT_INHIBIT_AUTO_SUSPEND = 256,
     PA_SINK_INPUT_NO_CREATE_ON_SUSPEND = 512,
     PA_SINK_INPUT_KILL_ON_SUSPEND = 1024,
-    PA_SINK_INPUT_PASSTHROUGH = 2048
+    PA_SINK_INPUT_PASSTHROUGH = 2048,
+    PA_SINK_INPUT_START_RAMP_MUTED = 4096,
 } pa_sink_input_flags_t;
 
 struct pa_sink_input {
@@ -124,6 +126,9 @@ struct pa_sink_input {
      * this.*/
     bool save_sink:1, save_volume:1, save_muted:1;
 
+    /* for volume ramps */
+    pa_cvolume_ramp_int ramp;
+
     pa_resample_method_t requested_resample_method, actual_resample_method;
 
     /* Returns the chunk of audio data and drops it from the
@@ -252,6 +257,8 @@ struct pa_sink_input {
         pa_usec_t requested_sink_latency;
 
         pa_hashmap *direct_outputs;
+
+        pa_cvolume_ramp_int ramp;
     } thread_info;
 
     void *userdata;
@@ -268,6 +275,7 @@ enum {
     PA_SINK_INPUT_MESSAGE_SET_STATE,
     PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY,
     PA_SINK_INPUT_MESSAGE_GET_REQUESTED_LATENCY,
+    PA_SINK_INPUT_MESSAGE_SET_VOLUME_RAMP,
     PA_SINK_INPUT_MESSAGE_MAX
 };
 
@@ -377,6 +385,8 @@ pa_cvolume *pa_sink_input_get_volume(pa_sink_input *i, pa_cvolume *volume, bool
 void pa_sink_input_set_mute(pa_sink_input *i, bool mute, bool save);
 bool pa_sink_input_get_mute(pa_sink_input *i);
 
+void pa_sink_input_set_volume_ramp(pa_sink_input *i, const pa_cvolume_ramp *ramp, bool send_msg, bool save);
+
 void pa_sink_input_update_proplist(pa_sink_input *i, pa_update_mode_t mode, pa_proplist *p);
 
 pa_resample_method_t pa_sink_input_get_resample_method(pa_sink_input *i);