blob: 655ee559c0616d39bffb6d2f7fd026b017ddfd58 [file] [log] [blame]
/*
* Copyright (C) 2010 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 "HTTPLiveSource"
#include <utils/Log.h>
#include "HTTPLiveSource.h"
#include "ATSParser.h"
#include "AnotherPacketSource.h"
#include "LiveDataSource.h"
#include "LiveSession.h"
#include <media/stagefright/foundation/ABuffer.h>
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/foundation/AMessage.h>
#include <media/stagefright/MediaErrors.h>
#include <media/stagefright/MetaData.h>
namespace android {
NuPlayer::HTTPLiveSource::HTTPLiveSource(
const sp<AMessage> &notify,
const char *url,
const KeyedVector<String8, String8> *headers,
bool uidValid, uid_t uid)
: Source(notify),
mURL(url),
mUIDValid(uidValid),
mUID(uid),
mFlags(0),
mFinalResult(OK),
mOffset(0) {
if (headers) {
mExtraHeaders = *headers;
ssize_t index =
mExtraHeaders.indexOfKey(String8("x-hide-urls-from-log"));
if (index >= 0) {
mFlags |= kFlagIncognito;
mExtraHeaders.removeItemsAt(index);
}
}
}
NuPlayer::HTTPLiveSource::~HTTPLiveSource() {
if (mLiveSession != NULL) {
mLiveSession->disconnect();
mLiveLooper->stop();
}
}
void NuPlayer::HTTPLiveSource::prepareAsync() {
mLiveLooper = new ALooper;
mLiveLooper->setName("http live");
mLiveLooper->start();
sp<AMessage> notify = new AMessage(kWhatSessionNotify, id());
mLiveSession = new LiveSession(
notify,
(mFlags & kFlagIncognito) ? LiveSession::kFlagIncognito : 0,
mUIDValid, mUID);
mLiveLooper->registerHandler(mLiveSession);
mLiveSession->connect(
mURL.c_str(), mExtraHeaders.isEmpty() ? NULL : &mExtraHeaders);
mTSParser = new ATSParser;
}
void NuPlayer::HTTPLiveSource::start() {
}
sp<MetaData> NuPlayer::HTTPLiveSource::getFormatMeta(bool audio) {
ATSParser::SourceType type =
audio ? ATSParser::AUDIO : ATSParser::VIDEO;
sp<AnotherPacketSource> source =
static_cast<AnotherPacketSource *>(mTSParser->getSource(type).get());
if (source == NULL) {
return NULL;
}
return source->getFormat();
}
status_t NuPlayer::HTTPLiveSource::feedMoreTSData() {
if (mFinalResult != OK) {
return mFinalResult;
}
sp<LiveDataSource> source =
static_cast<LiveDataSource *>(mLiveSession->getDataSource().get());
for (int32_t i = 0; i < 50; ++i) {
char buffer[188];
ssize_t n = source->readAtNonBlocking(mOffset, buffer, sizeof(buffer));
if (n == -EWOULDBLOCK) {
break;
} else if (n < 0) {
if (n != ERROR_END_OF_STREAM) {
ALOGI("input data EOS reached, error %ld", n);
} else {
ALOGI("input data EOS reached.");
}
mTSParser->signalEOS(n);
mFinalResult = n;
break;
} else {
if (buffer[0] == 0x00) {
// XXX legacy
uint8_t type = buffer[1];
sp<AMessage> extra = new AMessage;
if (type & 2) {
int64_t mediaTimeUs;
memcpy(&mediaTimeUs, &buffer[2], sizeof(mediaTimeUs));
extra->setInt64(IStreamListener::kKeyMediaTimeUs, mediaTimeUs);
}
mTSParser->signalDiscontinuity(
((type & 1) == 0)
? ATSParser::DISCONTINUITY_SEEK
: ATSParser::DISCONTINUITY_FORMATCHANGE,
extra);
} else {
status_t err = mTSParser->feedTSPacket(buffer, sizeof(buffer));
if (err != OK) {
ALOGE("TS Parser returned error %d", err);
mTSParser->signalEOS(err);
mFinalResult = err;
break;
}
}
mOffset += n;
}
}
return OK;
}
status_t NuPlayer::HTTPLiveSource::dequeueAccessUnit(
bool audio, sp<ABuffer> *accessUnit) {
ATSParser::SourceType type =
audio ? ATSParser::AUDIO : ATSParser::VIDEO;
sp<AnotherPacketSource> source =
static_cast<AnotherPacketSource *>(mTSParser->getSource(type).get());
if (source == NULL) {
return -EWOULDBLOCK;
}
status_t finalResult;
if (!source->hasBufferAvailable(&finalResult)) {
return finalResult == OK ? -EWOULDBLOCK : finalResult;
}
return source->dequeueAccessUnit(accessUnit);
}
status_t NuPlayer::HTTPLiveSource::getDuration(int64_t *durationUs) {
return mLiveSession->getDuration(durationUs);
}
status_t NuPlayer::HTTPLiveSource::seekTo(int64_t seekTimeUs) {
// We need to make sure we're not seeking until we have seen the very first
// PTS timestamp in the whole stream (from the beginning of the stream).
while (!mTSParser->PTSTimeDeltaEstablished() && feedMoreTSData() == OK) {
usleep(100000);
}
mLiveSession->seekTo(seekTimeUs);
return OK;
}
void NuPlayer::HTTPLiveSource::onMessageReceived(const sp<AMessage> &msg) {
switch (msg->what()) {
case kWhatSessionNotify:
{
onSessionNotify(msg);
break;
}
default:
Source::onMessageReceived(msg);
break;
}
}
void NuPlayer::HTTPLiveSource::onSessionNotify(const sp<AMessage> &msg) {
int32_t what;
CHECK(msg->findInt32("what", &what));
switch (what) {
case LiveSession::kWhatPrepared:
{
notifyVideoSizeChanged(0, 0);
uint32_t flags = FLAG_CAN_PAUSE;
if (mLiveSession->isSeekable()) {
flags |= FLAG_CAN_SEEK;
flags |= FLAG_CAN_SEEK_BACKWARD;
flags |= FLAG_CAN_SEEK_FORWARD;
}
if (mLiveSession->hasDynamicDuration()) {
flags |= FLAG_DYNAMIC_DURATION;
}
notifyFlagsChanged(flags);
notifyPrepared();
break;
}
case LiveSession::kWhatPreparationFailed:
{
status_t err;
CHECK(msg->findInt32("err", &err));
notifyPrepared(err);
break;
}
default:
TRESPASS();
}
}
} // namespace android