liveMedia/MatroskaDemuxedTrack.cpp

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00001 /**********
00002 This library is free software; you can redistribute it and/or modify it under
00003 the terms of the GNU Lesser General Public License as published by the
00004 Free Software Foundation; either version 2.1 of the License, or (at your
00005 option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
00006 
00007 This library is distributed in the hope that it will be useful, but WITHOUT
00008 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
00009 FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
00010 more details.
00011 
00012 You should have received a copy of the GNU Lesser General Public License
00013 along with this library; if not, write to the Free Software Foundation, Inc.,
00014 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
00015 **********/
00016 // "liveMedia"
00017 // Copyright (c) 1996-2012 Live Networks, Inc.  All rights reserved.
00018 // A media track, demultiplexed from a Matroska file
00019 // Implementation
00020 
00021 #include "MatroskaDemuxedTrack.hh"
00022 #include "MatroskaFile.hh"
00023 
00024 void MatroskaDemuxedTrack::seekToTime(double& seekNPT) {
00025   fOurSourceDemux.seekToTime(seekNPT);
00026 }
00027 
00028 MatroskaDemuxedTrack::MatroskaDemuxedTrack(UsageEnvironment& env, unsigned trackNumber, MatroskaDemux& sourceDemux)
00029   : FramedSource(env),
00030     fOurTrackNumber(trackNumber), fOurSourceDemux(sourceDemux) {
00031 }
00032 
00033 MatroskaDemuxedTrack::~MatroskaDemuxedTrack() {
00034   fOurSourceDemux.removeTrack(fOurTrackNumber);
00035 }
00036 
00037 void MatroskaDemuxedTrack::doGetNextFrame() {
00038   fOurSourceDemux.continueReading();
00039 }
00040 
00041 char const* MatroskaDemuxedTrack::MIMEtype() const {
00042   MatroskaTrack* track = fOurSourceDemux.fOurFile.lookup(fOurTrackNumber);
00043   if (track == NULL) return NULL; // shouldn't happen
00044   return track->mimeType;
00045 }

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