AudioTrackShared.h revision 88e209dcf8c2ebddda5c272f46d1bd5478bc639c
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#ifndef ANDROID_AUDIO_TRACK_SHARED_H 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define ANDROID_AUDIO_TRACK_SHARED_H 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <stdint.h> 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <sys/types.h> 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <utils/threads.h> 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectnamespace android { 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// ---------------------------------------------------------------------------- 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define THREAD_PRIORITY_AUDIO_CLIENT (ANDROID_PRIORITY_AUDIO) 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// Maximum cumulated timeout milliseconds before restarting audioflinger thread 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define MAX_STARTUP_TIMEOUT_MS 3000 // Longer timeout period at startup to cope with A2DP init time 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define MAX_RUN_TIMEOUT_MS 1000 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define WAIT_PERIOD_MS 10 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstruct audio_track_cblk_t 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project{ 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data members are grouped so that members accessed frequently and in the same context 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // are in the same line of data cache. 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Mutex lock; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Condition cv; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project volatile uint32_t user; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project volatile uint32_t server; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t userBase; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t serverBase; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void* buffers; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t frameCount; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Cache line boundary 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t loopStart; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t loopEnd; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int loopCount; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project volatile union { 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint16_t volume[2]; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t volumeLR; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 5788e209dcf8c2ebddda5c272f46d1bd5478bc639cEric Laurent uint32_t sampleRate; 5888e209dcf8c2ebddda5c272f46d1bd5478bc639cEric Laurent uint8_t channels; 5988e209dcf8c2ebddda5c272f46d1bd5478bc639cEric Laurent uint8_t flowControlFlag; // underrun (out) or overrrun (in) indication 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint8_t out; // out equals 1 for AudioTrack and 0 for AudioRecord 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint8_t forceReady; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint16_t bufferTimeoutMs; // Maximum cumulated timeout before restarting audioflinger 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint16_t waitTimeMs; // Cumulated wait time 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Padding ensuring that data buffer starts on a cache line boundary (32 bytes). 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See AudioFlinger::TrackBase constructor 66105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project int32_t Padding[1]; 67105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project // Cache line boundary 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project audio_track_cblk_t(); 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t stepUser(uint32_t frameCount); 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project bool stepServer(uint32_t frameCount); 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void* buffer(uint32_t offset) const; 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t framesAvailable(); 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t framesAvailable_l(); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project uint32_t framesReady(); 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project// ---------------------------------------------------------------------------- 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; // namespace android 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#endif // ANDROID_AUDIO_TRACK_SHARED_H 84