@ -23,6 +23,7 @@
# include <memory>
# include <cutils/misc.h>
# include <media/AudioEffect.h>
# include <media/AudioPolicyHelper.h>
# include <media/EffectsConfig.h>
# include <mediautils/ServiceUtilities.h>
# include <system/audio.h>
@ -317,6 +318,102 @@ status_t AudioPolicyEffects::releaseOutputSessionEffects(audio_io_handle_t outpu
return status ;
}
status_t AudioPolicyEffects : : addStreamDefaultEffect ( const effect_uuid_t * type ,
const String16 & opPackageName ,
const effect_uuid_t * uuid ,
int32_t priority ,
audio_usage_t usage ,
audio_unique_id_t * id )
{
if ( uuid = = NULL | | type = = NULL ) {
ALOGE ( " addStreamDefaultEffect(): Null uuid or type uuid pointer " ) ;
return BAD_VALUE ;
}
audio_stream_type_t stream = audio_usage_to_stream_type ( usage ) ;
if ( stream < AUDIO_STREAM_MIN | | stream > = AUDIO_STREAM_PUBLIC_CNT ) {
ALOGE ( " addStreamDefaultEffect(): Unsupported stream type %d " , stream ) ;
return BAD_VALUE ;
}
// Check that |uuid| or |type| corresponds to an effect on the system.
effect_descriptor_t descriptor = { } ;
status_t res = AudioEffect : : getEffectDescriptor (
uuid , type , EFFECT_FLAG_TYPE_INSERT , & descriptor ) ;
if ( res ! = OK ) {
ALOGE ( " addStreamDefaultEffect(): Failed to find effect descriptor matching uuid/type. " ) ;
return res ;
}
// Only insert effects can be added dynamically as stream defaults.
if ( ( descriptor . flags & EFFECT_FLAG_TYPE_MASK ) ! = EFFECT_FLAG_TYPE_INSERT ) {
ALOGE ( " addStreamDefaultEffect(): Desired effect cannot be attached "
" as a stream default effect. " ) ;
return BAD_VALUE ;
}
Mutex : : Autolock _l ( mLock ) ;
// Find the EffectDescVector for the given stream type, or create a new one if necessary.
ssize_t index = mOutputStreams . indexOfKey ( stream ) ;
EffectDescVector * desc = NULL ;
if ( index < 0 ) {
// No effects for this stream type yet.
desc = new EffectDescVector ( ) ;
mOutputStreams . add ( stream , desc ) ;
} else {
desc = mOutputStreams . valueAt ( index ) ;
}
// Create a new effect and add it to the vector.
res = AudioEffect : : newEffectUniqueId ( id ) ;
if ( res ! = OK ) {
ALOGE ( " addStreamDefaultEffect(): failed to get new unique id. " ) ;
return res ;
}
EffectDesc * effect = new EffectDesc (
descriptor . name , * type , opPackageName , * uuid , priority , * id ) ;
desc - > mEffects . add ( effect ) ;
// TODO(b/71813697): Support setting params as well.
// TODO(b/71814300): Retroactively attach to any existing streams of the given type.
// This requires tracking the stream type of each session id in addition to what is
// already being tracked.
return NO_ERROR ;
}
status_t AudioPolicyEffects : : removeStreamDefaultEffect ( audio_unique_id_t id )
{
if ( id = = AUDIO_UNIQUE_ID_ALLOCATE ) {
// ALLOCATE is not a unique identifier, but rather a reserved value indicating
// a real id has not been assigned. For default effects, this value is only used
// by system-owned defaults from the loaded config, which cannot be removed.
return BAD_VALUE ;
}
Mutex : : Autolock _l ( mLock ) ;
// Check each stream type.
size_t numStreams = mOutputStreams . size ( ) ;
for ( size_t i = 0 ; i < numStreams ; + + i ) {
// Check each effect for each stream.
EffectDescVector * descVector = mOutputStreams [ i ] ;
for ( auto desc = descVector - > mEffects . begin ( ) ; desc ! = descVector - > mEffects . end ( ) ; + + desc ) {
if ( ( * desc ) - > mId = = id ) {
// Found it!
// TODO(b/71814300): Remove from any streams the effect was attached to.
descVector - > mEffects . erase ( desc ) ;
// Handles are unique; there can only be one match, so return early.
return NO_ERROR ;
}
}
}
// Effect wasn't found, so it's been trivially removed successfully.
return NO_ERROR ;
}
void AudioPolicyEffects : : EffectVector : : setProcessorEnabled ( bool enabled )
{
Ari Hausman-Cohen
6 years ago