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/**********
This library is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2.1 of the License, or (at your
option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation, Inc.,
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
**********/
// "liveMedia"
// Copyright (c) 1996-2005 Live Networks, Inc. All rights reserved.
// A filter for converting a stream of MPEG PES packets to a MPEG-2 Transport Stream
// Implementation
#include "MPEG2TransportStreamFromPESSource.hh"
#define MAX_PES_PACKET_SIZE 65536
MPEG2TransportStreamFromPESSource* MPEG2TransportStreamFromPESSource
::createNew(UsageEnvironment& env, MPEG1or2DemuxedElementaryStream* inputSource) {
return new MPEG2TransportStreamFromPESSource(env, inputSource);
}
MPEG2TransportStreamFromPESSource
::MPEG2TransportStreamFromPESSource(UsageEnvironment& env,
MPEG1or2DemuxedElementaryStream* inputSource)
: MPEG2TransportStreamMultiplexor(env),
fInputSource(inputSource) {
fInputBuffer = new unsigned char[MAX_PES_PACKET_SIZE];
}
MPEG2TransportStreamFromPESSource::~MPEG2TransportStreamFromPESSource() {
Medium::close(fInputSource);
delete[] fInputBuffer;
}
void MPEG2TransportStreamFromPESSource::doStopGettingFrames() {
fInputSource->stopGettingFrames();
}
void MPEG2TransportStreamFromPESSource
::awaitNewBuffer(unsigned char* /*oldBuffer*/) {
fInputSource->getNextFrame(fInputBuffer, MAX_PES_PACKET_SIZE,
afterGettingFrame, this,
FramedSource::handleClosure, this);
}
void MPEG2TransportStreamFromPESSource
::afterGettingFrame(void* clientData, unsigned frameSize,
unsigned numTruncatedBytes,
struct timeval presentationTime,
unsigned durationInMicroseconds) {
MPEG2TransportStreamFromPESSource* source
= (MPEG2TransportStreamFromPESSource*)clientData;
source->afterGettingFrame1(frameSize, numTruncatedBytes,
presentationTime, durationInMicroseconds);
}
void MPEG2TransportStreamFromPESSource
::afterGettingFrame1(unsigned frameSize,
unsigned /*numTruncatedBytes*/,
struct timeval /*presentationTime*/,
unsigned /*durationInMicroseconds*/) {
if (frameSize < 4) return;
handleNewBuffer(fInputBuffer, frameSize,
fInputSource->mpegVersion(), fInputSource->lastSeenSCR());
}
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