102 lines
4 KiB
C
102 lines
4 KiB
C
/******************************************************************************
|
|
*
|
|
* Copyright (C) 2016 The Android Open Source Project
|
|
* Copyright (C) 2009-2012 Broadcom Corporation
|
|
*
|
|
* 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.
|
|
*
|
|
******************************************************************************/
|
|
|
|
#ifndef BTIF_A2DP_SOURCE_H
|
|
#define BTIF_A2DP_SOURCE_H
|
|
|
|
#include <stdbool.h>
|
|
|
|
#include "bta_av_api.h"
|
|
|
|
// Initialize and startup the A2DP Source module.
|
|
// This function should be called by the BTIF state machine prior to using the
|
|
// module.
|
|
bool btif_a2dp_source_startup(void);
|
|
|
|
// Shutdown and cleanup the A2DP Source module.
|
|
// This function should be called by the BTIF state machine during
|
|
// graceful shutdown and cleanup.
|
|
void btif_a2dp_source_shutdown(void);
|
|
|
|
// Check whether the A2DP Source media task is running.
|
|
// Returns true if the A2DP Source media task is running, otherwise false.
|
|
bool btif_a2dp_source_media_task_is_running(void);
|
|
|
|
// Check whether the A2DP Source media task is shutting down.
|
|
// Returns true if the A2DP Source media task is shutting down.
|
|
bool btif_a2dp_source_media_task_is_shutting_down(void);
|
|
|
|
// Return true if the A2DP Source module is streaming.
|
|
bool btif_a2dp_source_is_streaming(void);
|
|
|
|
// Setup the A2DP Source codec, and prepare the encoder.
|
|
// This function should be called prior to starting A2DP streaming.
|
|
void btif_a2dp_source_setup_codec(void);
|
|
|
|
// Process a request to start the A2DP audio encoding task.
|
|
void btif_a2dp_source_start_audio_req(void);
|
|
|
|
// Process a request to stop the A2DP audio encoding task.
|
|
void btif_a2dp_source_stop_audio_req(void);
|
|
|
|
// Process a request to update the A2DP audio encoder with user preferred
|
|
// codec configuration.
|
|
// |codec_user_config| contains the preferred codec user configuration.
|
|
void btif_a2dp_source_encoder_user_config_update_req(
|
|
const btav_a2dp_codec_config_t& codec_user_config);
|
|
|
|
// Process a request to update the A2DP audio encoding with new audio
|
|
// configuration feeding parameters stored in |codec_audio_config|.
|
|
// The fields that are used are: |codec_audio_config.sample_rate|,
|
|
// |codec_audio_config.bits_per_sample| and |codec_audio_config.channel_mode|.
|
|
void btif_a2dp_source_feeding_update_req(
|
|
const btav_a2dp_codec_config_t& codec_audio_config);
|
|
|
|
// Process 'idle' request from the BTIF state machine during initialization.
|
|
void btif_a2dp_source_on_idle(void);
|
|
|
|
// Process 'stop' request from the BTIF state machine to stop A2DP streaming.
|
|
// |p_av_suspend| is the data associated with the request - see
|
|
// |tBTA_AV_SUSPEND|.
|
|
void btif_a2dp_source_on_stopped(tBTA_AV_SUSPEND* p_av_suspend);
|
|
|
|
// Process 'suspend' request from the BTIF state machine to suspend A2DP
|
|
// streaming.
|
|
// |p_av_suspend| is the data associated with the request - see
|
|
// |tBTA_AV_SUSPEND|.
|
|
void btif_a2dp_source_on_suspended(tBTA_AV_SUSPEND* p_av_suspend);
|
|
|
|
// Enable/disable discarding of transmitted frames.
|
|
// If |enable| is true, the discarding is enabled, otherwise is disabled.
|
|
void btif_a2dp_source_set_tx_flush(bool enable);
|
|
|
|
// Get the next A2DP buffer to send.
|
|
// Returns the next A2DP buffer to send if available, otherwise NULL.
|
|
BT_HDR* btif_a2dp_source_audio_readbuf(void);
|
|
|
|
// Dump debug-related information for the A2DP Source module.
|
|
// |fd| is the file descriptor to use for writing the ASCII formatted
|
|
// information.
|
|
void btif_a2dp_source_debug_dump(int fd);
|
|
|
|
// Update the A2DP Source related metrics.
|
|
// This function should be called before collecting the metrics.
|
|
void btif_a2dp_source_update_metrics(void);
|
|
|
|
#endif /* BTIF_A2DP_SOURCE_H */
|