75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
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/**********
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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 filter for converting a stream of MPEG PES packets to a MPEG-2 Transport Stream
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// Implementation
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#include "MPEG2TransportStreamFromPESSource.hh"
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#define MAX_PES_PACKET_SIZE (6+65535)
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MPEG2TransportStreamFromPESSource* MPEG2TransportStreamFromPESSource
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::createNew(UsageEnvironment& env, MPEG1or2DemuxedElementaryStream* inputSource) {
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return new MPEG2TransportStreamFromPESSource(env, inputSource);
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}
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MPEG2TransportStreamFromPESSource
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::MPEG2TransportStreamFromPESSource(UsageEnvironment& env,
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MPEG1or2DemuxedElementaryStream* inputSource)
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: MPEG2TransportStreamMultiplexor(env),
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fInputSource(inputSource) {
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fInputBuffer = new unsigned char[MAX_PES_PACKET_SIZE];
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}
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MPEG2TransportStreamFromPESSource::~MPEG2TransportStreamFromPESSource() {
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Medium::close(fInputSource);
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delete[] fInputBuffer;
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}
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void MPEG2TransportStreamFromPESSource::doStopGettingFrames() {
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fInputSource->stopGettingFrames();
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}
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void MPEG2TransportStreamFromPESSource
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::awaitNewBuffer(unsigned char* /*oldBuffer*/) {
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fInputSource->getNextFrame(fInputBuffer, MAX_PES_PACKET_SIZE,
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afterGettingFrame, this,
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FramedSource::handleClosure, this);
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}
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void MPEG2TransportStreamFromPESSource
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::afterGettingFrame(void* clientData, unsigned frameSize,
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unsigned numTruncatedBytes,
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struct timeval presentationTime,
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unsigned durationInMicroseconds) {
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MPEG2TransportStreamFromPESSource* source
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= (MPEG2TransportStreamFromPESSource*)clientData;
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source->afterGettingFrame1(frameSize, numTruncatedBytes,
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presentationTime, durationInMicroseconds);
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}
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void MPEG2TransportStreamFromPESSource
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::afterGettingFrame1(unsigned frameSize,
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unsigned /*numTruncatedBytes*/,
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struct timeval /*presentationTime*/,
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unsigned /*durationInMicroseconds*/) {
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if (frameSize < 4) return;
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handleNewBuffer(fInputBuffer, frameSize,
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fInputSource->mpegVersion(), fInputSource->lastSeenSCR());
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}
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