eeddb0e504
this change intends to support its very limited case and signals an error in all other cases of unexpected PID changes that we cannot recover from. Change-Id: Icbfdf9fe7461969e2a8781ed416f54d891dd789a
141 lines
4.0 KiB
C++
141 lines
4.0 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "StreamingSource"
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#include <utils/Log.h>
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#include "StreamingSource.h"
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#include "ATSParser.h"
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#include "AnotherPacketSource.h"
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#include "NuPlayerStreamListener.h"
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#include <media/stagefright/foundation/ABuffer.h>
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#include <media/stagefright/foundation/ADebug.h>
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#include <media/stagefright/foundation/AMessage.h>
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#include <media/stagefright/MediaSource.h>
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#include <media/stagefright/MetaData.h>
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namespace android {
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NuPlayer::StreamingSource::StreamingSource(const sp<IStreamSource> &source)
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: mSource(source),
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mEOS(false) {
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}
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NuPlayer::StreamingSource::~StreamingSource() {
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}
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void NuPlayer::StreamingSource::start() {
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mStreamListener = new NuPlayerStreamListener(mSource, 0);
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mTSParser = new ATSParser(ATSParser::TS_TIMESTAMPS_ARE_ABSOLUTE);
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mStreamListener->start();
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}
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bool NuPlayer::StreamingSource::feedMoreTSData() {
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if (mEOS) {
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return false;
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}
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for (int32_t i = 0; i < 10; ++i) {
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char buffer[188];
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sp<AMessage> extra;
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ssize_t n = mStreamListener->read(buffer, sizeof(buffer), &extra);
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if (n == 0) {
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LOGI("input data EOS reached.");
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mTSParser->signalEOS(ERROR_END_OF_STREAM);
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mEOS = true;
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break;
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} else if (n == INFO_DISCONTINUITY) {
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ATSParser::DiscontinuityType type = ATSParser::DISCONTINUITY_SEEK;
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int32_t formatChange;
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if (extra != NULL
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&& extra->findInt32(
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IStreamListener::kKeyFormatChange, &formatChange)
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&& formatChange != 0) {
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type = ATSParser::DISCONTINUITY_FORMATCHANGE;
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}
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mTSParser->signalDiscontinuity(type, extra);
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} else if (n < 0) {
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CHECK_EQ(n, -EWOULDBLOCK);
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break;
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} else {
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if (buffer[0] == 0x00) {
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// XXX legacy
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mTSParser->signalDiscontinuity(
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buffer[1] == 0x00
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? ATSParser::DISCONTINUITY_SEEK
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: ATSParser::DISCONTINUITY_FORMATCHANGE,
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extra);
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} else {
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status_t err = mTSParser->feedTSPacket(buffer, sizeof(buffer));
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if (err != OK) {
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LOGE("TS Parser returned error %d", err);
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mTSParser->signalEOS(err);
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mEOS = true;
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break;
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}
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}
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}
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}
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return true;
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}
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sp<MetaData> NuPlayer::StreamingSource::getFormat(bool audio) {
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ATSParser::SourceType type =
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audio ? ATSParser::AUDIO : ATSParser::VIDEO;
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sp<AnotherPacketSource> source =
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static_cast<AnotherPacketSource *>(mTSParser->getSource(type).get());
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if (source == NULL) {
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return NULL;
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}
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return source->getFormat();
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}
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status_t NuPlayer::StreamingSource::dequeueAccessUnit(
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bool audio, sp<ABuffer> *accessUnit) {
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ATSParser::SourceType type =
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audio ? ATSParser::AUDIO : ATSParser::VIDEO;
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sp<AnotherPacketSource> source =
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static_cast<AnotherPacketSource *>(mTSParser->getSource(type).get());
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if (source == NULL) {
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return -EWOULDBLOCK;
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}
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status_t finalResult;
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if (!source->hasBufferAvailable(&finalResult)) {
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return finalResult == OK ? -EWOULDBLOCK : finalResult;
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}
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return source->dequeueAccessUnit(accessUnit);
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}
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} // namespace android
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