86 lines
3.2 KiB
C++
86 lines
3.2 KiB
C++
/**********
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This library is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
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This library is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this library; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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**********/
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// "liveMedia"
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// Copyright (c) 1996-2016 Live Networks, Inc. All rights reserved.
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// A simplified version of "H264VideoStreamFramer" that takes only complete,
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// discrete frames (rather than an arbitrary byte stream) as input.
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// This avoids the parsing and data copying overhead of the full
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// "H264VideoStreamFramer".
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// Implementation
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#include "include/H264VideoNaluFramer.hh"
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#include <iostream>
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#include "../IPCProgram/interface/H264FrameParser.h"
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#include "string.h"
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using namespace std;
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using namespace Byl;
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H264VideoNaluFramer* H264VideoNaluFramer::createNew(UsageEnvironment& env, FramedSource* inputSource)
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{
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return new H264VideoNaluFramer(env, inputSource);
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}
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H264VideoNaluFramer::H264VideoNaluFramer(UsageEnvironment& env, FramedSource* inputSource)
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: H264or5VideoStreamDiscreteFramer(264, env, inputSource),
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_parser(new H264FrameParser(H264FrameParser::NotManagerBuffer))
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{
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}
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H264VideoNaluFramer::~H264VideoNaluFramer() { delete _parser; }
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Boolean H264VideoNaluFramer::isH264VideoStreamFramer() const { return True; }
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void H264VideoNaluFramer::doGetNextFrame()
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{
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if (_parser->findNalu()) {
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fillData();
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} else {
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fInputSource->getNextFrame(fTo, fMaxSize, H264VideoNaluFramer::afterGettingFrame, this,
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FramedSource::handleClosure, this);
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}
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}
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void H264VideoNaluFramer::afterGettingFrame(void* clientData, unsigned frameSize, unsigned numTruncatedBytes,
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struct timeval presentationTime, unsigned durationInMicroseconds)
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{
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H264VideoNaluFramer* source = (H264VideoNaluFramer*)clientData;
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source->afterGettingFrame1(frameSize, numTruncatedBytes, presentationTime, durationInMicroseconds);
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}
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void H264VideoNaluFramer::afterGettingFrame1(unsigned frameSize, unsigned numTruncatedBytes,
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struct timeval presentationTime, unsigned durationInMicroseconds)
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{
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_parser->setBuffer(fTo, frameSize);
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fPresentationTime = presentationTime;
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if (_parser->findNalu()) {
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fillData();
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}
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}
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void H264VideoNaluFramer::fillData()
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{
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uint8_t* data = NULL;
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uint32_t size = 0;
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bool isLast = false;
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_parser->getNextNaluBuffer(data, size, isLast);
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memmove(fTo, data, size);
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fFrameSize = size;
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fPictureEndMarker = isLast;
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if (isLast) _parser->dumpStartcode();
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envir().taskScheduler().scheduleDelayedTask(0, (TaskFunc*)afterGetting, this);
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}
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