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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "SDPLoader"
#include <utils/Log.h>
#include "include/SDPLoader.h"
#include "ASessionDescription.h"
#include <media/IMediaHTTPConnection.h>
#include <media/IMediaHTTPService.h>
#include <media/stagefright/MediaHTTP.h>
#include <media/stagefright/foundation/ABuffer.h>
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/Utils.h>
#define DEFAULT_SDP_SIZE 100000
namespace android {
SDPLoader::SDPLoader(
const sp<AMessage> ¬ify,
uint32_t flags,
const sp<IMediaHTTPService> &httpService)
: mNotify(notify),
mFlags(flags),
mNetLooper(new ALooper),
mCancelled(false),
mHTTPDataSource(new MediaHTTP(httpService->makeHTTPConnection())) {
mNetLooper->setName("sdp net");
mNetLooper->start(false /* runOnCallingThread */,
false /* canCallJava */,
PRIORITY_HIGHEST);
}
void SDPLoader::load(const char *url, const KeyedVector<String8, String8> *headers) {
mNetLooper->registerHandler(this);
sp<AMessage> msg = new AMessage(kWhatLoad, id());
msg->setString("url", url);
if (headers != NULL) {
msg->setPointer(
"headers",
new KeyedVector<String8, String8>(*headers));
}
msg->post();
}
void SDPLoader::cancel() {
mCancelled = true;
sp<HTTPBase> HTTPDataSource = mHTTPDataSource;
HTTPDataSource->disconnect();
}
void SDPLoader::onMessageReceived(const sp<AMessage> &msg) {
switch (msg->what()) {
case kWhatLoad:
onLoad(msg);
break;
default:
TRESPASS();
break;
}
}
void SDPLoader::onLoad(const sp<AMessage> &msg) {
status_t err = OK;
sp<ASessionDescription> desc = NULL;
AString url;
CHECK(msg->findString("url", &url));
KeyedVector<String8, String8> *headers = NULL;
msg->findPointer("headers", (void **)&headers);
ALOGV("onLoad %s", uriDebugString(url, mFlags & kFlagIncognito).c_str());
if (!mCancelled) {
err = mHTTPDataSource->connect(url.c_str(), headers);
if (err != OK) {
ALOGE("connect() returned %d", err);
}
}
if (headers != NULL) {
delete headers;
headers = NULL;
}
off64_t sdpSize;
if (err == OK && !mCancelled) {
err = mHTTPDataSource->getSize(&sdpSize);
if (err != OK) {
//We did not get the size of the sdp file, default to a large value
sdpSize = DEFAULT_SDP_SIZE;
err = OK;
}
}
sp<ABuffer> buffer = new ABuffer(sdpSize);
if (err == OK && !mCancelled) {
ssize_t readSize = mHTTPDataSource->readAt(0, buffer->data(), sdpSize);
if (readSize < 0) {
ALOGE("Failed to read SDP, error code = %zu", readSize);
err = UNKNOWN_ERROR;
} else {
desc = new ASessionDescription;
if (desc == NULL || !desc->setTo(buffer->data(), (size_t)readSize)) {
err = UNKNOWN_ERROR;
ALOGE("Failed to parse SDP");
}
}
}
mHTTPDataSource.clear();
sp<AMessage> notify = mNotify->dup();
notify->setInt32("what", kWhatSDPLoaded);
notify->setInt32("result", err);
notify->setObject("description", desc);
notify->post();
}
} // namespace android
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