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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <hardware/audio.h>
#include <hardware/audio_effect.h>
#include "EffectsFactory.h"
namespace android {
enum {
SUB_FX_HOST, // Index of HOST in the descriptor and handle arrays
// of the Proxy context
SUB_FX_OFFLOAD, // Index of OFFLOAD in the descriptor and handle arrays
// of the Proxy context
SUB_FX_COUNT // The number of sub effects for a Proxy(1 HW, 1 SW)
};
#if __cplusplus
extern "C" {
#endif
int EffectProxyCreate(const effect_uuid_t *uuid,
int32_t sessionId,
int32_t ioId,
effect_handle_t *pHandle);
int EffectProxyRelease(effect_handle_t handle);
int EffectProxyGetDescriptor(const effect_uuid_t *uuid,
effect_descriptor_t *pDescriptor);
/* Effect Control Interface Implementation: Process */
int Effect_process(effect_handle_t self,
audio_buffer_t *inBuffer,
audio_buffer_t *outBuffer);
/* Effect Control Interface Implementation: Command */
int Effect_command(effect_handle_t self,
uint32_t cmdCode,
uint32_t cmdSize,
void *pCmdData,
uint32_t *replySize,
void *pReplyData);
int Effect_getDescriptor(effect_handle_t self,
effect_descriptor_t *pDescriptor);
const struct effect_interface_s gEffectInterface = {
Effect_process,
Effect_command,
Effect_getDescriptor,
NULL,
};
#define PROXY_REPLY_SIZE_MAX (64 * 1024) // must be power of two
#define PROXY_REPLY_SIZE_DEFAULT 32 // must be power of two
struct EffectContext {
const struct effect_interface_s *common_itfe; // Holds the itfe of the Proxy
sub_effect_entry_t** sube; // Points to the sub effects
effect_descriptor_t* desc; // Points to the sub effect descriptors
audio_effect_library_t** aeli; // Points to the sub effect aeli
effect_handle_t eHandle[SUB_FX_COUNT]; // The effect handles of the sub effects
int index; // The index that is currently active - HOST or OFFLOAD
int32_t sessionId; // The sessiond in which the effect is created.
// Stored in context to pass on to sub effect creation
int32_t ioId; // The ioId in which the effect is created.
// Stored in context to pass on to sub effect creation
effect_uuid_t uuid; // UUID of the Proxy
char* replyData; // temporary buffer for non active sub effect command reply
uint32_t replySize; // current size of temporary reply buffer
};
#if __cplusplus
} // extern "C"
#endif
} //namespace android
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