65 lines
2.3 KiB
C++
65 lines
2.3 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 3 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) 1996-2020 Live Networks, Inc. All rights reserved.
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#include "JPEG2000VideoRTPSource.hh"
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JPEG2000VideoRTPSource*
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JPEG2000VideoRTPSource::createNew(UsageEnvironment& env,
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Groupsock* RTPgs,
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unsigned char rtpPayloadFormat,
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unsigned rtpTimestampFrequency,
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char const* sampling) {
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return new JPEG2000VideoRTPSource(env, RTPgs, rtpPayloadFormat, rtpTimestampFrequency, sampling);
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}
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JPEG2000VideoRTPSource
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::JPEG2000VideoRTPSource(UsageEnvironment& env, Groupsock* RTPgs,
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unsigned char rtpPayloadFormat, unsigned rtpTimestampFrequency,
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char const* sampling)
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: MultiFramedRTPSource(env, RTPgs, rtpPayloadFormat, rtpTimestampFrequency) {
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fSampling = strDup(sampling);
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}
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JPEG2000VideoRTPSource::~JPEG2000VideoRTPSource() {
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delete[] fSampling;
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}
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#define JPEG2000_PAYLOAD_HEADER_SIZE 8
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Boolean JPEG2000VideoRTPSource
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::processSpecialHeader(BufferedPacket* packet,
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unsigned& resultSpecialHeaderSize) {
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unsigned char* headerStart = packet->data();
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unsigned packetSize = packet->dataSize();
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// There should be enough space for a payload header:
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if (packetSize < JPEG2000_PAYLOAD_HEADER_SIZE) return False;
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u_int32_t fragmentOffset = (headerStart[5]<<16)|(headerStart[6]<<8)|(headerStart[7]);
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fCurrentPacketBeginsFrame = fragmentOffset == 0;
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fCurrentPacketCompletesFrame = packet->rtpMarkerBit();
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resultSpecialHeaderSize = JPEG2000_PAYLOAD_HEADER_SIZE;
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return True;
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}
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char const* JPEG2000VideoRTPSource::MIMEtype() const {
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return "video/JPEG2000";
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}
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