HTTPLiveSource.cpp revision 43c3e6ce02215ca99d506458f596cb1211639f29
15bc087c573c70c84c6a39946457590b42d392a33Andreas Huber/* 25bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * Copyright (C) 2010 The Android Open Source Project 35bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * 45bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * Licensed under the Apache License, Version 2.0 (the "License"); 55bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * you may not use this file except in compliance with the License. 65bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * You may obtain a copy of the License at 75bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * 85bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * http://www.apache.org/licenses/LICENSE-2.0 95bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * 105bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * Unless required by applicable law or agreed to in writing, software 115bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * distributed under the License is distributed on an "AS IS" BASIS, 125bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 135bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * See the License for the specific language governing permissions and 145bc087c573c70c84c6a39946457590b42d392a33Andreas Huber * limitations under the License. 155bc087c573c70c84c6a39946457590b42d392a33Andreas Huber */ 165bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 175bc087c573c70c84c6a39946457590b42d392a33Andreas Huber//#define LOG_NDEBUG 0 185bc087c573c70c84c6a39946457590b42d392a33Andreas Huber#define LOG_TAG "HTTPLiveSource" 195bc087c573c70c84c6a39946457590b42d392a33Andreas Huber#include <utils/Log.h> 205bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 215bc087c573c70c84c6a39946457590b42d392a33Andreas Huber#include "HTTPLiveSource.h" 225bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 235bc087c573c70c84c6a39946457590b42d392a33Andreas Huber#include "ATSParser.h" 245bc087c573c70c84c6a39946457590b42d392a33Andreas Huber#include "AnotherPacketSource.h" 255bc087c573c70c84c6a39946457590b42d392a33Andreas Huber#include "LiveDataSource.h" 265bc087c573c70c84c6a39946457590b42d392a33Andreas Huber#include "LiveSession.h" 275bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 285bc087c573c70c84c6a39946457590b42d392a33Andreas Huber#include <media/stagefright/foundation/ABuffer.h> 295bc087c573c70c84c6a39946457590b42d392a33Andreas Huber#include <media/stagefright/foundation/ADebug.h> 305bc087c573c70c84c6a39946457590b42d392a33Andreas Huber#include <media/stagefright/foundation/AMessage.h> 315bc087c573c70c84c6a39946457590b42d392a33Andreas Huber#include <media/stagefright/MediaErrors.h> 325bc087c573c70c84c6a39946457590b42d392a33Andreas Huber#include <media/stagefright/MetaData.h> 335bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 345bc087c573c70c84c6a39946457590b42d392a33Andreas Hubernamespace android { 355bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 365bc087c573c70c84c6a39946457590b42d392a33Andreas HuberNuPlayer::HTTPLiveSource::HTTPLiveSource(const char *url) 375bc087c573c70c84c6a39946457590b42d392a33Andreas Huber : mURL(url), 385bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mEOS(false), 395bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mOffset(0) { 405bc087c573c70c84c6a39946457590b42d392a33Andreas Huber} 415bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 425bc087c573c70c84c6a39946457590b42d392a33Andreas HuberNuPlayer::HTTPLiveSource::~HTTPLiveSource() { 435bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mLiveSession->disconnect(); 445bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mLiveLooper->stop(); 455bc087c573c70c84c6a39946457590b42d392a33Andreas Huber} 465bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 475bc087c573c70c84c6a39946457590b42d392a33Andreas Hubervoid NuPlayer::HTTPLiveSource::start() { 485bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mLiveLooper = new ALooper; 495bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mLiveLooper->setName("http live"); 505bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mLiveLooper->start(); 515bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 525bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mLiveSession = new LiveSession; 535bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mLiveLooper->registerHandler(mLiveSession); 545bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 555bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mLiveSession->connect(mURL.c_str()); 565bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 575bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mTSParser = new ATSParser; 585bc087c573c70c84c6a39946457590b42d392a33Andreas Huber} 595bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 605bc087c573c70c84c6a39946457590b42d392a33Andreas Hubersp<MetaData> NuPlayer::HTTPLiveSource::getFormat(bool audio) { 615bc087c573c70c84c6a39946457590b42d392a33Andreas Huber ATSParser::SourceType type = 625bc087c573c70c84c6a39946457590b42d392a33Andreas Huber audio ? ATSParser::MPEG2ADTS_AUDIO : ATSParser::AVC_VIDEO; 635bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 645bc087c573c70c84c6a39946457590b42d392a33Andreas Huber sp<AnotherPacketSource> source = 655bc087c573c70c84c6a39946457590b42d392a33Andreas Huber static_cast<AnotherPacketSource *>(mTSParser->getSource(type).get()); 665bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 675bc087c573c70c84c6a39946457590b42d392a33Andreas Huber if (source == NULL) { 685bc087c573c70c84c6a39946457590b42d392a33Andreas Huber return NULL; 695bc087c573c70c84c6a39946457590b42d392a33Andreas Huber } 705bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 715bc087c573c70c84c6a39946457590b42d392a33Andreas Huber return source->getFormat(); 725bc087c573c70c84c6a39946457590b42d392a33Andreas Huber} 735bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 745bc087c573c70c84c6a39946457590b42d392a33Andreas Huberbool NuPlayer::HTTPLiveSource::feedMoreTSData() { 755bc087c573c70c84c6a39946457590b42d392a33Andreas Huber if (mEOS) { 765bc087c573c70c84c6a39946457590b42d392a33Andreas Huber return false; 775bc087c573c70c84c6a39946457590b42d392a33Andreas Huber } 785bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 795bc087c573c70c84c6a39946457590b42d392a33Andreas Huber sp<LiveDataSource> source = 805bc087c573c70c84c6a39946457590b42d392a33Andreas Huber static_cast<LiveDataSource *>(mLiveSession->getDataSource().get()); 815bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 825bc087c573c70c84c6a39946457590b42d392a33Andreas Huber for (int32_t i = 0; i < 10; ++i) { 835bc087c573c70c84c6a39946457590b42d392a33Andreas Huber char buffer[188]; 845bc087c573c70c84c6a39946457590b42d392a33Andreas Huber ssize_t n = source->readAtNonBlocking(mOffset, buffer, sizeof(buffer)); 855bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 865bc087c573c70c84c6a39946457590b42d392a33Andreas Huber if (n == -EWOULDBLOCK) { 875bc087c573c70c84c6a39946457590b42d392a33Andreas Huber break; 885bc087c573c70c84c6a39946457590b42d392a33Andreas Huber } else if (n < 0) { 895bc087c573c70c84c6a39946457590b42d392a33Andreas Huber LOGI("input data EOS reached."); 901aef211b4e5dc952081727bfd2318b2cb5ca4506Andreas Huber mTSParser->signalEOS(n); 915bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mEOS = true; 925bc087c573c70c84c6a39946457590b42d392a33Andreas Huber break; 935bc087c573c70c84c6a39946457590b42d392a33Andreas Huber } else { 945bc087c573c70c84c6a39946457590b42d392a33Andreas Huber if (buffer[0] == 0x00) { 955bc087c573c70c84c6a39946457590b42d392a33Andreas Huber // XXX legacy 965bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mTSParser->signalDiscontinuity( 975bc087c573c70c84c6a39946457590b42d392a33Andreas Huber buffer[1] == 0x00 985bc087c573c70c84c6a39946457590b42d392a33Andreas Huber ? ATSParser::DISCONTINUITY_SEEK 995bc087c573c70c84c6a39946457590b42d392a33Andreas Huber : ATSParser::DISCONTINUITY_FORMATCHANGE); 1005bc087c573c70c84c6a39946457590b42d392a33Andreas Huber } else { 1015bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mTSParser->feedTSPacket(buffer, sizeof(buffer)); 1025bc087c573c70c84c6a39946457590b42d392a33Andreas Huber } 1035bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 1045bc087c573c70c84c6a39946457590b42d392a33Andreas Huber mOffset += n; 1055bc087c573c70c84c6a39946457590b42d392a33Andreas Huber } 1065bc087c573c70c84c6a39946457590b42d392a33Andreas Huber } 1075bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 1085bc087c573c70c84c6a39946457590b42d392a33Andreas Huber return true; 1095bc087c573c70c84c6a39946457590b42d392a33Andreas Huber} 1105bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 1115bc087c573c70c84c6a39946457590b42d392a33Andreas Huberstatus_t NuPlayer::HTTPLiveSource::dequeueAccessUnit( 1125bc087c573c70c84c6a39946457590b42d392a33Andreas Huber bool audio, sp<ABuffer> *accessUnit) { 1135bc087c573c70c84c6a39946457590b42d392a33Andreas Huber ATSParser::SourceType type = 1145bc087c573c70c84c6a39946457590b42d392a33Andreas Huber audio ? ATSParser::MPEG2ADTS_AUDIO : ATSParser::AVC_VIDEO; 1155bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 1165bc087c573c70c84c6a39946457590b42d392a33Andreas Huber sp<AnotherPacketSource> source = 1175bc087c573c70c84c6a39946457590b42d392a33Andreas Huber static_cast<AnotherPacketSource *>(mTSParser->getSource(type).get()); 1185bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 1195bc087c573c70c84c6a39946457590b42d392a33Andreas Huber if (source == NULL) { 1205bc087c573c70c84c6a39946457590b42d392a33Andreas Huber return -EWOULDBLOCK; 1215bc087c573c70c84c6a39946457590b42d392a33Andreas Huber } 1225bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 1235bc087c573c70c84c6a39946457590b42d392a33Andreas Huber status_t finalResult; 1245bc087c573c70c84c6a39946457590b42d392a33Andreas Huber if (!source->hasBufferAvailable(&finalResult)) { 1255bc087c573c70c84c6a39946457590b42d392a33Andreas Huber return finalResult == OK ? -EWOULDBLOCK : finalResult; 1265bc087c573c70c84c6a39946457590b42d392a33Andreas Huber } 1275bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 1285bc087c573c70c84c6a39946457590b42d392a33Andreas Huber return source->dequeueAccessUnit(accessUnit); 1295bc087c573c70c84c6a39946457590b42d392a33Andreas Huber} 1305bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 13143c3e6ce02215ca99d506458f596cb1211639f29Andreas Huberstatus_t NuPlayer::HTTPLiveSource::getDuration(int64_t *durationUs) { 13243c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber return mLiveSession->getDuration(durationUs); 13343c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber} 13443c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 13543c3e6ce02215ca99d506458f596cb1211639f29Andreas Huberstatus_t NuPlayer::HTTPLiveSource::seekTo(int64_t seekTimeUs) { 13643c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber // We need to make sure we're not seeking until we have seen the very first 13743c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber // PTS timestamp in the whole stream (from the beginning of the stream). 13843c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber while (!mTSParser->PTSTimeDeltaEstablished() && feedMoreTSData()) { 13943c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber usleep(100000); 14043c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber } 14143c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 14243c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber mLiveSession->seekTo(seekTimeUs); 14343c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 14443c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber return OK; 14543c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber} 14643c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 14743c3e6ce02215ca99d506458f596cb1211639f29Andreas Huberbool NuPlayer::HTTPLiveSource::isSeekable() { 14843c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber return mLiveSession->isSeekable(); 14943c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber} 15043c3e6ce02215ca99d506458f596cb1211639f29Andreas Huber 1515bc087c573c70c84c6a39946457590b42d392a33Andreas Huber} // namespace android 1525bc087c573c70c84c6a39946457590b42d392a33Andreas Huber 153