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/*
* 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 "StreamingSource"
#include <utils/Log.h>
#include "StreamingSource.h"
#include "ATSParser.h"
#include "AnotherPacketSource.h"
#include "NuPlayerStreamListener.h"
#include <media/stagefright/foundation/ABuffer.h>
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/foundation/AMessage.h>
#include <media/stagefright/MediaSource.h>
#include <media/stagefright/MetaData.h>
namespace android {
NuPlayer::StreamingSource::StreamingSource(const sp<IStreamSource> &source)
: mSource(source),
mFinalResult(OK) {
}
NuPlayer::StreamingSource::~StreamingSource() {
}
void NuPlayer::StreamingSource::start() {
mStreamListener = new NuPlayerStreamListener(mSource, 0);
mTSParser = new ATSParser(ATSParser::TS_TIMESTAMPS_ARE_ABSOLUTE);
mStreamListener->start();
}
status_t NuPlayer::StreamingSource::feedMoreTSData() {
if (mFinalResult != OK) {
return mFinalResult;
}
for (int32_t i = 0; i < 50; ++i) {
char buffer[188];
sp<AMessage> extra;
ssize_t n = mStreamListener->read(buffer, sizeof(buffer), &extra);
if (n == 0) {
LOGI("input data EOS reached.");
mTSParser->signalEOS(ERROR_END_OF_STREAM);
mFinalResult = ERROR_END_OF_STREAM;
break;
} else if (n == INFO_DISCONTINUITY) {
int32_t type = ATSParser::DISCONTINUITY_SEEK;
int32_t mask;
if (extra != NULL
&& extra->findInt32(
IStreamListener::kKeyDiscontinuityMask, &mask)) {
if (mask == 0) {
LOGE("Client specified an illegal discontinuity type.");
return ERROR_UNSUPPORTED;
}
type = mask;
}
mTSParser->signalDiscontinuity(
(ATSParser::DiscontinuityType)type, extra);
} else if (n < 0) {
CHECK_EQ(n, -EWOULDBLOCK);
break;
} else {
if (buffer[0] == 0x00) {
// XXX legacy
mTSParser->signalDiscontinuity(
buffer[1] == 0x00
? ATSParser::DISCONTINUITY_SEEK
: ATSParser::DISCONTINUITY_FORMATCHANGE,
extra);
} else {
status_t err = mTSParser->feedTSPacket(buffer, sizeof(buffer));
if (err != OK) {
LOGE("TS Parser returned error %d", err);
mTSParser->signalEOS(err);
mFinalResult = err;
break;
}
}
}
}
return OK;
}
sp<MetaData> NuPlayer::StreamingSource::getFormat(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::StreamingSource::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);
}
} // namespace android
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