Support querying active record sources

Add support for querying whether there is currently a recording
 underway from the specified audio source.

Bug 7314859

Change-Id: I986b231a10ffd368b08ec2f9c7f348d28eaeb892

2 files changed, 13 insertions, 0 deletions

diff --git a/services/audioflinger/AudioPolicyService.cpp b/services/audioflinger/AudioPolicyService.cpp
index 155a0b8..8b99bd2 100644
--- a/services/audioflinger/AudioPolicyService.cpp
+++ b/services/audioflinger/AudioPolicyService.cpp
@@ -483,6 +483,18 @@ bool AudioPolicyService::isStreamActive(audio_stream_type_t stream, uint32_t inP
     return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs);
 }
 
+bool AudioPolicyService::isSourceActive(audio_source_t source) const
+{
+    if (mpAudioPolicy == NULL) {
+        return false;
+    }
+    if (mpAudioPolicy->is_source_active == 0) {
+        return false;
+    }
+    Mutex::Autolock _l(mLock);
+    return mpAudioPolicy->is_source_active(mpAudioPolicy, source);
+}
+
 status_t AudioPolicyService::queryDefaultPreProcessing(int audioSession,
                                                        effect_descriptor_t *descriptors,
                                                        uint32_t *count)
diff --git a/services/audioflinger/AudioPolicyService.h b/services/audioflinger/AudioPolicyService.h
index a086734..63f9549 100644
--- a/services/audioflinger/AudioPolicyService.h
+++ b/services/audioflinger/AudioPolicyService.h
@@ -104,6 +104,7 @@ public:
     virtual status_t unregisterEffect(int id);
     virtual status_t setEffectEnabled(int id, bool enabled);
     virtual bool isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const;
+    virtual bool isSourceActive(audio_source_t source) const;
 
     virtual status_t queryDefaultPreProcessing(int audioSession,
                                               effect_descriptor_t *descriptors,