1 /****************************************************************************** 2 * 3 * Copyright 2016 The Android Open Source Project 4 * Copyright 2009-2012 Broadcom Corporation 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at: 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 * 18 ******************************************************************************/ 19 20 // 21 // Interface to the A2DP SBC Encoder 22 // 23 24 #ifndef A2DP_SBC_ENCODER_H 25 #define A2DP_SBC_ENCODER_H 26 27 #include "a2dp_codec_api.h" 28 #include "osi/include/time.h" 29 30 // Loads the A2DP SBC encoder. 31 // Return true on success, otherwise false. 32 bool A2DP_LoadEncoderSbc(void); 33 34 // Unloads the A2DP SBC encoder. 35 void A2DP_UnloadEncoderSbc(void); 36 37 // Initialize the A2DP SBC encoder. 38 // |p_peer_params| contains the A2DP peer information 39 // The current A2DP codec config is in |a2dp_codec_config|. 40 // |read_callback| is the callback for reading the input audio data. 41 // |enqueue_callback| is the callback for enqueueing the encoded audio data. 42 void a2dp_sbc_encoder_init(const tA2DP_ENCODER_INIT_PEER_PARAMS* p_peer_params, 43 A2dpCodecConfig* a2dp_codec_config, 44 a2dp_source_read_callback_t read_callback, 45 a2dp_source_enqueue_callback_t enqueue_callback); 46 47 // Cleanup the A2DP SBC encoder. 48 void a2dp_sbc_encoder_cleanup(void); 49 50 // Reset the feeding for the A2DP SBC encoder. 51 void a2dp_sbc_feeding_reset(void); 52 53 // Flush the feeding for the A2DP SBC encoder. 54 void a2dp_sbc_feeding_flush(void); 55 56 // Get the A2DP SBC encoder interval (in milliseconds). 57 period_ms_t a2dp_sbc_get_encoder_interval_ms(void); 58 59 // Prepare and send A2DP SBC encoded frames. 60 // |timestamp_us| is the current timestamp (in microseconds). 61 void a2dp_sbc_send_frames(uint64_t timestamp_us); 62 63 // Get SBC bitrate 64 // Returns |uint32_t| bitrate in bits per second 65 uint32_t a2dp_sbc_get_bitrate(); 66 #endif // A2DP_SBC_ENCODER_H 67
