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-rw-r--r--include/media/AudioEffect.h31
-rw-r--r--include/media/IAudioPolicyService.h3
-rw-r--r--media/libmedia/AudioEffect.cpp9
-rw-r--r--media/libmedia/IAudioPolicyService.cpp49
-rw-r--r--services/audioflinger/AudioPolicyService.cpp37
-rw-r--r--services/audioflinger/AudioPolicyService.h3
6 files changed, 132 insertions, 0 deletions
diff --git a/include/media/AudioEffect.h b/include/media/AudioEffect.h
index 496b23e..1417416 100644
--- a/include/media/AudioEffect.h
+++ b/include/media/AudioEffect.h
@@ -21,6 +21,7 @@
#include <sys/types.h>
#include <media/IAudioFlinger.h>
+#include <media/IAudioPolicyService.h>
#include <media/IEffect.h>
#include <media/IEffectClient.h>
#include <hardware/audio_effect.h>
@@ -111,6 +112,36 @@ public:
/*
+ * Returns a list of descriptors corresponding to the pre processings enabled by default
+ * on an AudioRecord with the supplied audio session ID.
+ *
+ * Parameters:
+ * audioSession: audio session ID.
+ * descriptors: address where the effect descriptors should be returned.
+ * count: as input, the maximum number of descriptor than should be returned
+ * as output, the number of descriptor returned if status is NO_ERROR or the actual
+ * number of enabled pre processings if status is NO_MEMORY
+ *
+ * Returned status (from utils/Errors.h) can be:
+ * NO_ERROR successful operation.
+ * NO_MEMORY the number of descriptor to return is more than the maximum number
+ * indicated by count.
+ * PERMISSION_DENIED could not get AudioFlinger interface
+ * NO_INIT effect library failed to initialize
+ * BAD_VALUE invalid audio session or descriptor pointers
+ *
+ * Returned value
+ * *descriptor updated with descriptors of pre processings enabled by default
+ * *count number of descriptors returned if returned status is N_ERROR.
+ * total number of pre processing enabled by default if returned status is
+ * NO_MEMORY. This happens if the count passed as input is less than the number
+ * of descriptors to return
+ */
+ static status_t queryDefaultPreProcessing(int audioSession,
+ effect_descriptor_t *descriptors,
+ uint32_t *count);
+
+ /*
* Events used by callback function (effect_callback_t).
*/
enum event_type {
diff --git a/include/media/IAudioPolicyService.h b/include/media/IAudioPolicyService.h
index 86b9f85..ed265e1 100644
--- a/include/media/IAudioPolicyService.h
+++ b/include/media/IAudioPolicyService.h
@@ -85,6 +85,9 @@ public:
int id) = 0;
virtual status_t unregisterEffect(int id) = 0;
virtual bool isStreamActive(int stream, uint32_t inPastMs = 0) const = 0;
+ virtual status_t queryDefaultPreProcessing(int audioSession,
+ effect_descriptor_t *descriptors,
+ uint32_t *count) = 0;
};
diff --git a/media/libmedia/AudioEffect.cpp b/media/libmedia/AudioEffect.cpp
index 3919551..0633744 100644
--- a/media/libmedia/AudioEffect.cpp
+++ b/media/libmedia/AudioEffect.cpp
@@ -419,6 +419,15 @@ status_t AudioEffect::getEffectDescriptor(effect_uuid_t *uuid, effect_descriptor
return af->getEffectDescriptor(uuid, descriptor);
}
+
+status_t AudioEffect::queryDefaultPreProcessing(int audioSession,
+ effect_descriptor_t *descriptors,
+ uint32_t *count)
+{
+ const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+ if (aps == 0) return PERMISSION_DENIED;
+ return aps->queryDefaultPreProcessing(audioSession, descriptors, count);
+}
// -------------------------------------------------------------------------
status_t AudioEffect::stringToGuid(const char *str, effect_uuid_t *guid)
diff --git a/media/libmedia/IAudioPolicyService.cpp b/media/libmedia/IAudioPolicyService.cpp
index 49d410f..15f4be0 100644
--- a/media/libmedia/IAudioPolicyService.cpp
+++ b/media/libmedia/IAudioPolicyService.cpp
@@ -53,6 +53,7 @@ enum {
UNREGISTER_EFFECT,
IS_STREAM_ACTIVE,
GET_DEVICES_FOR_STREAM,
+ QUERY_DEFAULT_PRE_PROCESSING
};
class BpAudioPolicyService : public BpInterface<IAudioPolicyService>
@@ -321,6 +322,31 @@ public:
remote()->transact(IS_STREAM_ACTIVE, data, &reply);
return reply.readInt32();
}
+
+ virtual status_t queryDefaultPreProcessing(int audioSession,
+ effect_descriptor_t *descriptors,
+ uint32_t *count)
+ {
+ if (descriptors == NULL || count == NULL) {
+ return BAD_VALUE;
+ }
+ Parcel data, reply;
+ data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+ data.writeInt32(audioSession);
+ data.writeInt32(*count);
+ status_t status = remote()->transact(QUERY_DEFAULT_PRE_PROCESSING, data, &reply);
+ if (status != NO_ERROR) {
+ return status;
+ }
+ status = static_cast <status_t> (reply.readInt32());
+ uint32_t retCount = reply.readInt32();
+ if (retCount != 0) {
+ uint32_t numDesc = (retCount < *count) ? retCount : *count;
+ reply.read(descriptors, sizeof(effect_descriptor_t) * numDesc);
+ }
+ *count = retCount;
+ return status;
+ }
};
IMPLEMENT_META_INTERFACE(AudioPolicyService, "android.media.IAudioPolicyService");
@@ -559,6 +585,29 @@ status_t BnAudioPolicyService::onTransact(
return NO_ERROR;
} break;
+ case QUERY_DEFAULT_PRE_PROCESSING: {
+ CHECK_INTERFACE(IAudioPolicyService, data, reply);
+ int audioSession = data.readInt32();
+ uint32_t count = data.readInt32();
+ uint32_t retCount = count;
+ effect_descriptor_t *descriptors =
+ (effect_descriptor_t *)new char[count * sizeof(effect_descriptor_t)];
+ status_t status = queryDefaultPreProcessing(audioSession, descriptors, &retCount);
+ reply->writeInt32(status);
+ if (status != NO_ERROR && status != NO_MEMORY) {
+ retCount = 0;
+ }
+ reply->writeInt32(retCount);
+ if (retCount) {
+ if (retCount < count) {
+ count = retCount;
+ }
+ reply->write(descriptors, sizeof(effect_descriptor_t) * count);
+ }
+ delete[] descriptors;
+ return status;
+ }
+
default:
return BBinder::onTransact(code, data, reply, flags);
}
diff --git a/services/audioflinger/AudioPolicyService.cpp b/services/audioflinger/AudioPolicyService.cpp
index dd1e153..6d06d83 100644
--- a/services/audioflinger/AudioPolicyService.cpp
+++ b/services/audioflinger/AudioPolicyService.cpp
@@ -497,6 +497,43 @@ bool AudioPolicyService::isStreamActive(int stream, uint32_t inPastMs) const
return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs);
}
+status_t AudioPolicyService::queryDefaultPreProcessing(int audioSession,
+ effect_descriptor_t *descriptors,
+ uint32_t *count)
+{
+
+ if (mpAudioPolicy == NULL) {
+ *count = 0;
+ return NO_INIT;
+ }
+ Mutex::Autolock _l(mLock);
+ status_t status = NO_ERROR;
+
+ size_t index;
+ for (index = 0; index < mInputs.size(); index++) {
+ if (mInputs.valueAt(index)->mSessionId == audioSession) {
+ break;
+ }
+ }
+ if (index == mInputs.size()) {
+ *count = 0;
+ return BAD_VALUE;
+ }
+ Vector< sp<AudioEffect> > effects = mInputs.valueAt(index)->mEffects;
+
+ for (size_t i = 0; i < effects.size(); i++) {
+ effect_descriptor_t desc = effects[i]->descriptor();
+ if (i < *count) {
+ memcpy(descriptors + i, &desc, sizeof(effect_descriptor_t));
+ }
+ }
+ if (effects.size() > *count) {
+ status = NO_MEMORY;
+ }
+ *count = effects.size();
+ return status;
+}
+
void AudioPolicyService::binderDied(const wp<IBinder>& who) {
LOGW("binderDied() %p, tid %d, calling tid %d", who.unsafe_get(), gettid(),
IPCThreadState::self()->getCallingPid());
diff --git a/services/audioflinger/AudioPolicyService.h b/services/audioflinger/AudioPolicyService.h
index 62ad29e..834b794 100644
--- a/services/audioflinger/AudioPolicyService.h
+++ b/services/audioflinger/AudioPolicyService.h
@@ -104,6 +104,9 @@ public:
virtual status_t unregisterEffect(int id);
virtual bool isStreamActive(int stream, uint32_t inPastMs = 0) const;
+ virtual status_t queryDefaultPreProcessing(int audioSession,
+ effect_descriptor_t *descriptors,
+ uint32_t *count);
virtual status_t onTransact(
uint32_t code,
const Parcel& data,
generated by cgit v1.1 at 2024-05-16 04:35:52 +0000