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author | Steve Kondik <steve@cyngn.com> | 2016-01-14 02:46:40 -0800 |
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committer | Steve Kondik <shade@chemlab.org> | 2016-03-08 17:34:16 -0800 |
commit | 0479d7c79a7fd6f112e8dc7e45c009cf6602dbaa (patch) | |
tree | 6ad8d2cd4abd2f7f2fe6beb8348fd696426f76b2 /media/libmedia/IAudioPolicyService.cpp | |
parent | 51aee1e55bee9cf8e4fd30ecf19fccd7ab7bfc15 (diff) | |
download | frameworks_av-0479d7c79a7fd6f112e8dc7e45c009cf6602dbaa.zip frameworks_av-0479d7c79a7fd6f112e8dc7e45c009cf6602dbaa.tar.gz frameworks_av-0479d7c79a7fd6f112e8dc7e45c009cf6602dbaa.tar.bz2 |
audiopolicy: Add notification when default effects are updated
* In M, we now have the ability to define a default set of audio effect
on a per-stream basis. This allows us to get around the problem of
apps not sending the control intents so we can implement smart
global effects for specific media types.
* We still need a session id in order to get a handle and configure them
from an app like AudioFX, so we'll need to add some plumbing in
order to send an event to interested applications.
* This patch implements the native side of this. The Java layer will
call down thru AudioSystem and register a callback which will be
invoked by the audio policy when default effects are updated on
a stream. This callback will receive both the stream type as well
as the session id.
* Attaching this listener requires that the caller hold the
MODIFY_AUDIO_ROUTING permission.
Change-Id: I142b15f2585ffca6a953c3e828e2a7c07b24f56c
Diffstat (limited to 'media/libmedia/IAudioPolicyService.cpp')
-rw-r--r-- | media/libmedia/IAudioPolicyService.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/media/libmedia/IAudioPolicyService.cpp b/media/libmedia/IAudioPolicyService.cpp index 76b5924..6ff8149 100644 --- a/media/libmedia/IAudioPolicyService.cpp +++ b/media/libmedia/IAudioPolicyService.cpp @@ -74,6 +74,7 @@ enum { START_AUDIO_SOURCE, STOP_AUDIO_SOURCE, SET_AUDIO_PORT_CALLBACK_ENABLED, + SET_EFFECT_SESSION_CALLBACK_ENABLED, }; #define MAX_ITEMS_PER_LIST 1024 @@ -655,6 +656,18 @@ public: remote()->transact(SET_AUDIO_PORT_CALLBACK_ENABLED, data, &reply); } + virtual status_t setEffectSessionCallbacksEnabled(bool enabled) + { + Parcel data, reply; + data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor()); + data.writeInt32(enabled ? 1 : 0); + status_t status = remote()->transact(SET_EFFECT_SESSION_CALLBACK_ENABLED, data, &reply); + if (status != NO_ERROR) { + return status; + } + return (status_t)reply.readInt32(); + } + virtual status_t acquireSoundTriggerSession(audio_session_t *session, audio_io_handle_t *ioHandle, audio_devices_t *device) @@ -1238,6 +1251,13 @@ status_t BnAudioPolicyService::onTransact( return NO_ERROR; } break; + case SET_EFFECT_SESSION_CALLBACK_ENABLED: { + CHECK_INTERFACE(IAudioPolicyService, data, reply); + status_t status = setEffectSessionCallbacksEnabled(data.readInt32() == 1); + reply->writeInt32(status); + return NO_ERROR; + } break; + case ACQUIRE_SOUNDTRIGGER_SESSION: { CHECK_INTERFACE(IAudioPolicyService, data, reply); sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>( |