1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef DVB_MANAGER_H_ 18 #define DVB_MANAGER_H_ 19 20 #include <jni.h> 21 #include <map> 22 23 #include "mutex.h" 24 #include "tunertvinput_jni.h" 25 26 class DvbManager { 27 static const int NUM_POLLFDS = 1; 28 static const int FE_LOCK_CHECK_INTERNAL_US = 100 * 1000; 29 static const int FE_CONSECUTIVE_LOCK_SUCCESS_COUNT = 1; 30 static const int DVB_ERROR_RETRY_INTERVAL_MS = 100 * 1000; 31 static const int DVB_TUNE_STOP_DELAY_MS = 100 * 1000; 32 static const int FE_POLL_TIMEOUT_MS = 100; 33 static const int PAT_PID = 0; 34 35 static const int FILTER_TYPE_OTHER = 36 com_android_tv_tuner_TunerHal_FILTER_TYPE_OTHER; 37 static const int FILTER_TYPE_AUDIO = 38 com_android_tv_tuner_TunerHal_FILTER_TYPE_AUDIO; 39 static const int FILTER_TYPE_VIDEO = 40 com_android_tv_tuner_TunerHal_FILTER_TYPE_VIDEO; 41 static const int FILTER_TYPE_PCR = 42 com_android_tv_tuner_TunerHal_FILTER_TYPE_PCR; 43 44 int mFeFd; 45 int mDemuxFd; 46 int mDvrFd; 47 int mPatFilterFd; 48 bool mFeHasLock; 49 // Flag for pending tune request. Used for canceling the current tune operation. 50 bool volatile mHasPendingTune; 51 std::map<int, int> mPidFilters; 52 Mutex mFilterLock; 53 jmethodID mOpenDvbFrontEndMethodID; 54 jmethodID mOpenDvbDemuxMethodID; 55 jmethodID mOpenDvbDvrMethodID; 56 57 public: 58 DvbManager(JNIEnv *env, jobject thiz); 59 ~DvbManager(); 60 int tune(JNIEnv *env, jobject thiz, 61 const int frequency, const char *modulationStr, int timeout_ms); 62 int stopTune(); 63 int readTsStream(JNIEnv *env, jobject thiz, 64 uint8_t *tsBuffer, int tsBufferSize, int timeout_ms); 65 int startTsPidFilter(JNIEnv *env, jobject thiz, int pid, int filterType); 66 void closeAllDvbPidFilter(); 67 void setHasPendingTune(bool hasPendingTune); 68 69 private: 70 int openDvbFe(JNIEnv *env, jobject thiz); 71 int openDvbDvr(JNIEnv *env, jobject thiz); 72 void closePatFilter(); 73 void closeDvbFe(); 74 void closeDvbDvr(); 75 void reset(); 76 void resetExceptFe(); 77 bool isFeLocked(); 78 // Call to java method 79 int openDvbFeFromSystemApi(JNIEnv *env, jobject thiz); 80 int openDvbDemuxFromSystemApi(JNIEnv *env, jobject thiz); 81 int openDvbDvrFromSystemApi(JNIEnv *env, jobject thiz); 82 }; 83 84 #endif // DVB_MANAGER_H_ 85
