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102 lines
4.0 KiB
102 lines
4.0 KiB
/****************************************************************************** |
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* |
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* Copyright (C) 2016 The Android Open Source Project |
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* Copyright (C) 2009-2012 Broadcom Corporation |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at: |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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******************************************************************************/ |
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#ifndef BTIF_A2DP_SOURCE_H |
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#define BTIF_A2DP_SOURCE_H |
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#include <stdbool.h> |
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#include "bta_av_api.h" |
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// Initialize and startup the A2DP Source module. |
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// This function should be called by the BTIF state machine prior to using the |
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// module. |
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bool btif_a2dp_source_startup(void); |
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// Shutdown and cleanup the A2DP Source module. |
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// This function should be called by the BTIF state machine during |
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// graceful shutdown and cleanup. |
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void btif_a2dp_source_shutdown(void); |
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// Check whether the A2DP Source media task is running. |
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// Returns true if the A2DP Source media task is running, otherwise false. |
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bool btif_a2dp_source_media_task_is_running(void); |
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// Check whether the A2DP Source media task is shutting down. |
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// Returns true if the A2DP Source media task is shutting down. |
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bool btif_a2dp_source_media_task_is_shutting_down(void); |
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// Return true if the A2DP Source module is streaming. |
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bool btif_a2dp_source_is_streaming(void); |
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// Setup the A2DP Source codec, and prepare the encoder. |
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// This function should be called prior to starting A2DP streaming. |
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void btif_a2dp_source_setup_codec(void); |
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// Process a request to start the A2DP audio encoding task. |
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void btif_a2dp_source_start_audio_req(void); |
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// Process a request to stop the A2DP audio encoding task. |
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void btif_a2dp_source_stop_audio_req(void); |
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// Process a request to update the A2DP audio encoder with user preferred |
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// codec configuration. |
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// |codec_user_config| contains the preferred codec user configuration. |
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void btif_a2dp_source_encoder_user_config_update_req( |
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const btav_a2dp_codec_config_t& codec_user_config); |
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// Process a request to update the A2DP audio encoding with new audio |
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// configuration feeding parameters stored in |codec_audio_config|. |
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// The fields that are used are: |codec_audio_config.sample_rate|, |
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// |codec_audio_config.bits_per_sample| and |codec_audio_config.channel_mode|. |
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void btif_a2dp_source_feeding_update_req( |
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const btav_a2dp_codec_config_t& codec_audio_config); |
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// Process 'idle' request from the BTIF state machine during initialization. |
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void btif_a2dp_source_on_idle(void); |
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// Process 'stop' request from the BTIF state machine to stop A2DP streaming. |
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// |p_av_suspend| is the data associated with the request - see |
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// |tBTA_AV_SUSPEND|. |
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void btif_a2dp_source_on_stopped(tBTA_AV_SUSPEND* p_av_suspend); |
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// Process 'suspend' request from the BTIF state machine to suspend A2DP |
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// streaming. |
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// |p_av_suspend| is the data associated with the request - see |
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// |tBTA_AV_SUSPEND|. |
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void btif_a2dp_source_on_suspended(tBTA_AV_SUSPEND* p_av_suspend); |
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// Enable/disable discarding of transmitted frames. |
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// If |enable| is true, the discarding is enabled, otherwise is disabled. |
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void btif_a2dp_source_set_tx_flush(bool enable); |
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// Get the next A2DP buffer to send. |
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// Returns the next A2DP buffer to send if available, otherwise NULL. |
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BT_HDR* btif_a2dp_source_audio_readbuf(void); |
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// Dump debug-related information for the A2DP Source module. |
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// |fd| is the file descriptor to use for writing the ASCII formatted |
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// information. |
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void btif_a2dp_source_debug_dump(int fd); |
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// Update the A2DP Source related metrics. |
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// This function should be called before collecting the metrics. |
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void btif_a2dp_source_update_metrics(void); |
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#endif /* BTIF_A2DP_SOURCE_H */
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