AnotherPacketSource.cpp revision bff07d0b22a5ee2d9f044f6cb5e4be1532017ab0
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 29namespace android { 30 31AnotherPacketSource::AnotherPacketSource(const sp<MetaData> &meta) 32 : mFormat(meta), 33 mEOSResult(OK) { 34} 35 36AnotherPacketSource::~AnotherPacketSource() { 37} 38 39status_t AnotherPacketSource::start(MetaData *params) { 40 return OK; 41} 42 43status_t AnotherPacketSource::stop() { 44 return OK; 45} 46 47sp<MetaData> AnotherPacketSource::getFormat() { 48 return mFormat; 49} 50 51status_t AnotherPacketSource::read( 52 MediaBuffer **out, const ReadOptions *) { 53 *out = NULL; 54 55 Mutex::Autolock autoLock(mLock); 56 while (mEOSResult == OK && mBuffers.empty()) { 57 mCondition.wait(mLock); 58 } 59 60 if (!mBuffers.empty()) { 61 const sp<ABuffer> buffer = *mBuffers.begin(); 62 mBuffers.erase(mBuffers.begin()); 63 64 int32_t discontinuity; 65 if (buffer->meta()->findInt32("discontinuity", &discontinuity) 66 && discontinuity) { 67 return INFO_DISCONTINUITY; 68 } else { 69 uint64_t timeUs; 70 CHECK(buffer->meta()->findInt64( 71 "time", (int64_t *)&timeUs)); 72 73 MediaBuffer *mediaBuffer = new MediaBuffer(buffer->size()); 74 mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs); 75 76 // hexdump(buffer->data(), buffer->size()); 77 78 memcpy(mediaBuffer->data(), buffer->data(), buffer->size()); 79 *out = mediaBuffer; 80 return OK; 81 } 82 } 83 84 return mEOSResult; 85} 86 87void AnotherPacketSource::queueAccessUnit(const sp<ABuffer> &buffer) { 88 int32_t damaged; 89 if (buffer->meta()->findInt32("damaged", &damaged) && damaged) { 90 // LOG(VERBOSE) << "discarding damaged AU"; 91 return; 92 } 93 94 int64_t timeUs; 95 CHECK(buffer->meta()->findInt64("time", &timeUs)); 96 LOGV("queueAccessUnit timeUs=%lld us (%.2f secs)", timeUs, timeUs / 1E6); 97 98 Mutex::Autolock autoLock(mLock); 99 mBuffers.push_back(buffer); 100 mCondition.signal(); 101} 102 103void AnotherPacketSource::queueDiscontinuity() { 104 sp<ABuffer> buffer = new ABuffer(0); 105 buffer->meta()->setInt32("discontinuity", true); 106 107 Mutex::Autolock autoLock(mLock); 108 109 mBuffers.push_back(buffer); 110 mCondition.signal(); 111} 112 113void AnotherPacketSource::clear() { 114 Mutex::Autolock autoLock(mLock); 115 mBuffers.clear(); 116 mEOSResult = OK; 117} 118 119void AnotherPacketSource::signalEOS(status_t result) { 120 CHECK(result != OK); 121 122 Mutex::Autolock autoLock(mLock); 123 mEOSResult = result; 124 mCondition.signal(); 125} 126 127bool AnotherPacketSource::hasBufferAvailable(status_t *finalResult) { 128 Mutex::Autolock autoLock(mLock); 129 if (!mBuffers.empty()) { 130 return true; 131 } 132 133 *finalResult = mEOSResult; 134 return false; 135} 136 137} // namespace android 138