SDPLoader.cpp revision db43b34c3428e480f8c4c66e7e88f4001f37f91e
131b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org/* 231b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * Copyright (C) 2012 The Android Open Source Project 331b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * 431b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * Licensed under the Apache License, Version 2.0 (the "License"); 531b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * you may not use this file except in compliance with the License. 631b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * You may obtain a copy of the License at 731b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * 831b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * http://www.apache.org/licenses/LICENSE-2.0 931b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * 1031b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * Unless required by applicable law or agreed to in writing, software 1131b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * distributed under the License is distributed on an "AS IS" BASIS, 1231b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1331b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * See the License for the specific language governing permissions and 1431b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org * limitations under the License. 1531b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org */ 1631b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 1731b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org//#define LOG_NDEBUG 0 1831b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org#define LOG_TAG "SDPLoader" 1931b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org#include <utils/Log.h> 2031b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 2131b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org#include "SDPLoader.h" 2231b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 2331b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org#include "ASessionDescription.h" 2431b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org#include "HTTPBase.h" 2531b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 2631b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org#include <media/stagefright/foundation/ABuffer.h> 2731b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org#include <media/stagefright/foundation/ADebug.h> 2831b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 2931b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org#define DEFAULT_SDP_SIZE 100000 3031b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 3131b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.orgnamespace android { 3231b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 3331b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.orgSDPLoader::SDPLoader(const sp<AMessage> ¬ify, uint32_t flags, bool uidValid, uid_t uid) 3431b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org : mNotify(notify), 3531b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org mFlags(flags), 3631b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org mUIDValid(uidValid), 3731b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org mUID(uid), 3831b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org mNetLooper(new ALooper), 3931b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org mCancelled(false), 4031b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org mHTTPDataSource( 4131b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org HTTPBase::Create( 4231b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org (mFlags & kFlagIncognito) 4331b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org ? HTTPBase::kFlagIncognito 4431b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org : 0)) { 4531b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org if (mUIDValid) { 4631b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org mHTTPDataSource->setUID(mUID); 4731b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org } 4831b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 4931b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org mNetLooper->setName("sdp net"); 5031b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org mNetLooper->start(false /* runOnCallingThread */, 5131b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org false /* canCallJava */, 5231b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org PRIORITY_HIGHEST); 5331b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org} 5431b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 5531b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.orgvoid SDPLoader::load(const char *url, const KeyedVector<String8, String8> *headers) { 5631b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org mNetLooper->registerHandler(this); 5731b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 5831b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org sp<AMessage> msg = new AMessage(kWhatLoad, id()); 5931b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org msg->setString("url", url); 6031b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 6131b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org if (headers != NULL) { 6231b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org msg->setPointer( 6331b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org "headers", 6431b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org new KeyedVector<String8, String8>(*headers)); 6531b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org } 6631b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 6731b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org msg->post(); 6831b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org} 6931b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org 7031b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.orgvoid SDPLoader::cancel() { 7131b38da0e2ba9778d241267f0cf1ba8dd2f36e83minyue@webrtc.org mCancelled = true; 72 sp<HTTPBase> HTTPDataSource = mHTTPDataSource; 73 HTTPDataSource->disconnect(); 74} 75 76void SDPLoader::onMessageReceived(const sp<AMessage> &msg) { 77 switch (msg->what()) { 78 case kWhatLoad: 79 onLoad(msg); 80 break; 81 82 default: 83 TRESPASS(); 84 break; 85 } 86} 87 88void SDPLoader::onLoad(const sp<AMessage> &msg) { 89 status_t err = OK; 90 sp<ASessionDescription> desc = NULL; 91 AString url; 92 CHECK(msg->findString("url", &url)); 93 94 KeyedVector<String8, String8> *headers = NULL; 95 msg->findPointer("headers", (void **)&headers); 96 97 if (!(mFlags & kFlagIncognito)) { 98 ALOGV("onLoad '%s'", url.c_str()); 99 } else { 100 ALOGI("onLoad <URL suppressed>"); 101 } 102 103 if (!mCancelled) { 104 err = mHTTPDataSource->connect(url.c_str(), headers); 105 106 if (err != OK) { 107 ALOGE("connect() returned %d", err); 108 } 109 } 110 111 if (headers != NULL) { 112 delete headers; 113 headers = NULL; 114 } 115 116 off64_t sdpSize; 117 if (err == OK && !mCancelled) { 118 err = mHTTPDataSource->getSize(&sdpSize); 119 120 if (err != OK) { 121 //We did not get the size of the sdp file, default to a large value 122 sdpSize = DEFAULT_SDP_SIZE; 123 err = OK; 124 } 125 } 126 127 sp<ABuffer> buffer = new ABuffer(sdpSize); 128 129 if (err == OK && !mCancelled) { 130 ssize_t readSize = mHTTPDataSource->readAt(0, buffer->data(), sdpSize); 131 132 if (readSize < 0) { 133 ALOGE("Failed to read SDP, error code = %zu", readSize); 134 err = UNKNOWN_ERROR; 135 } else { 136 desc = new ASessionDescription; 137 138 if (desc == NULL || !desc->setTo(buffer->data(), (size_t)readSize)) { 139 err = UNKNOWN_ERROR; 140 ALOGE("Failed to parse SDP"); 141 } 142 } 143 } 144 145 mHTTPDataSource.clear(); 146 147 sp<AMessage> notify = mNotify->dup(); 148 notify->setInt32("what", kWhatSDPLoaded); 149 notify->setInt32("result", err); 150 notify->setObject("description", desc); 151 notify->post(); 152} 153 154} // namespace android 155