1 /* 2 * Copyright (C) 2010 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 #include "AnotherPacketSource.h" 18 19 #include <media/stagefright/foundation/ABuffer.h> 20 #include <media/stagefright/foundation/ADebug.h> 21 #include <media/stagefright/foundation/AMessage.h> 22 #include <media/stagefright/foundation/AString.h> 23 #include <media/stagefright/foundation/hexdump.h> 24 #include <media/stagefright/MediaBuffer.h> 25 #include <media/stagefright/MediaDefs.h> 26 #include <media/stagefright/MetaData.h> 27 #include <utils/Vector.h> 28 29 namespace android { 30 31 AnotherPacketSource::AnotherPacketSource(const sp<MetaData> &meta) 32 : mFormat(meta), 33 mEOSResult(OK) { 34 } 35 36 void AnotherPacketSource::setFormat(const sp<MetaData> &meta) { 37 CHECK(mFormat == NULL); 38 mFormat = meta; 39 } 40 41 AnotherPacketSource::~AnotherPacketSource() { 42 } 43 44 status_t AnotherPacketSource::start(MetaData *params) { 45 return OK; 46 } 47 48 status_t AnotherPacketSource::stop() { 49 return OK; 50 } 51 52 sp<MetaData> AnotherPacketSource::getFormat() { 53 return mFormat; 54 } 55 56 status_t AnotherPacketSource::dequeueAccessUnit(sp<ABuffer> *buffer) { 57 buffer->clear(); 58 59 Mutex::Autolock autoLock(mLock); 60 while (mEOSResult == OK && mBuffers.empty()) { 61 mCondition.wait(mLock); 62 } 63 64 if (!mBuffers.empty()) { 65 *buffer = *mBuffers.begin(); 66 mBuffers.erase(mBuffers.begin()); 67 68 int32_t discontinuity; 69 if ((*buffer)->meta()->findInt32("discontinuity", &discontinuity)) { 70 71 if (discontinuity == ATSParser::DISCONTINUITY_FORMATCHANGE) { 72 mFormat.clear(); 73 } 74 75 return INFO_DISCONTINUITY; 76 } 77 78 return OK; 79 } 80 81 return mEOSResult; 82 } 83 84 status_t AnotherPacketSource::read( 85 MediaBuffer **out, const ReadOptions *) { 86 *out = NULL; 87 88 Mutex::Autolock autoLock(mLock); 89 while (mEOSResult == OK && mBuffers.empty()) { 90 mCondition.wait(mLock); 91 } 92 93 if (!mBuffers.empty()) { 94 const sp<ABuffer> buffer = *mBuffers.begin(); 95 mBuffers.erase(mBuffers.begin()); 96 97 int32_t discontinuity; 98 if (buffer->meta()->findInt32("discontinuity", &discontinuity)) { 99 if (discontinuity == ATSParser::DISCONTINUITY_FORMATCHANGE) { 100 mFormat.clear(); 101 } 102 103 return INFO_DISCONTINUITY; 104 } else { 105 int64_t timeUs; 106 CHECK(buffer->meta()->findInt64("timeUs", &timeUs)); 107 108 MediaBuffer *mediaBuffer = new MediaBuffer(buffer); 109 110 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs); 111 112 *out = mediaBuffer; 113 return OK; 114 } 115 } 116 117 return mEOSResult; 118 } 119 120 void AnotherPacketSource::queueAccessUnit(const sp<ABuffer> &buffer) { 121 int32_t damaged; 122 if (buffer->meta()->findInt32("damaged", &damaged) && damaged) { 123 // LOG(VERBOSE) << "discarding damaged AU"; 124 return; 125 } 126 127 int64_t timeUs; 128 CHECK(buffer->meta()->findInt64("timeUs", &timeUs)); 129 LOGV("queueAccessUnit timeUs=%lld us (%.2f secs)", timeUs, timeUs / 1E6); 130 131 Mutex::Autolock autoLock(mLock); 132 mBuffers.push_back(buffer); 133 mCondition.signal(); 134 } 135 136 void AnotherPacketSource::queueDiscontinuity( 137 ATSParser::DiscontinuityType type, 138 const sp<AMessage> &extra) { 139 Mutex::Autolock autoLock(mLock); 140 141 // Leave only discontinuities in the queue. 142 List<sp<ABuffer> >::iterator it = mBuffers.begin(); 143 while (it != mBuffers.end()) { 144 sp<ABuffer> oldBuffer = *it; 145 146 int32_t oldDiscontinuityType; 147 if (!oldBuffer->meta()->findInt32( 148 "discontinuity", &oldDiscontinuityType)) { 149 it = mBuffers.erase(it); 150 continue; 151 } 152 153 ++it; 154 } 155 156 mEOSResult = OK; 157 158 sp<ABuffer> buffer = new ABuffer(0); 159 buffer->meta()->setInt32("discontinuity", static_cast<int32_t>(type)); 160 buffer->meta()->setMessage("extra", extra); 161 162 mBuffers.push_back(buffer); 163 mCondition.signal(); 164 } 165 166 void AnotherPacketSource::signalEOS(status_t result) { 167 CHECK(result != OK); 168 169 Mutex::Autolock autoLock(mLock); 170 mEOSResult = result; 171 mCondition.signal(); 172 } 173 174 bool AnotherPacketSource::hasBufferAvailable(status_t *finalResult) { 175 Mutex::Autolock autoLock(mLock); 176 if (!mBuffers.empty()) { 177 return true; 178 } 179 180 *finalResult = mEOSResult; 181 return false; 182 } 183 184 status_t AnotherPacketSource::nextBufferTime(int64_t *timeUs) { 185 *timeUs = 0; 186 187 Mutex::Autolock autoLock(mLock); 188 189 if (mBuffers.empty()) { 190 return mEOSResult != OK ? mEOSResult : -EWOULDBLOCK; 191 } 192 193 sp<ABuffer> buffer = *mBuffers.begin(); 194 CHECK(buffer->meta()->findInt64("timeUs", timeUs)); 195 196 return OK; 197 } 198 199 } // namespace android 200
