/**********
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
**********/
// "liveMedia"
// Copyright (c) 1996-2015 Live Networks, Inc.  All rights reserved.
// H.264 or H.265 Video File sinks
// Implementation

#include "H264or5VideoStreamSink.hh"
#include "H264VideoRTPSource.hh" // for "parseSPropParameterSets()"

////////// H264or5VideoFileSink //////////

H264or5VideoStreamSink
::H264or5VideoStreamSink(UsageEnvironment& env,
unsigned bufferSize,live555responseHandler* handler,void* live555responseData,
char const* sPropParameterSetsStr1,
char const* sPropParameterSetsStr2,
char const* sPropParameterSetsStr3)
: StreamSink(env, bufferSize),
fHaveWrittenFirstFrame(False) {
	live555response = handler;
	phwnd = live555responseData;
	fSPropParameterSetsStr[0] = sPropParameterSetsStr1;
	fSPropParameterSetsStr[1] = sPropParameterSetsStr2;
	fSPropParameterSetsStr[2] = sPropParameterSetsStr3;
}

H264or5VideoStreamSink::~H264or5VideoStreamSink() {
}

void H264or5VideoStreamSink::afterGettingFrame(unsigned frameSize, unsigned numTruncatedBytes, struct timeval presentationTime) {
	unsigned char const start_code[4] = { 0x00, 0x00, 0x00, 0x01 };

	if (!fHaveWrittenFirstFrame) {
		// If we have NAL units encoded in "sprop parameter strings", prepend these to the file:
		for (unsigned j = 0; j < 3; ++j) {
			unsigned numSPropRecords;
			SPropRecord* sPropRecords
				= parseSPropParameterSets(fSPropParameterSetsStr[j], numSPropRecords);
			for (unsigned i = 0; i < numSPropRecords; ++i) {
				addData(start_code, 4, presentationTime);
				addData(sPropRecords[i].sPropBytes, sPropRecords[i].sPropLength, presentationTime);
			}
			delete [] sPropRecords;
		}
		fHaveWrittenFirstFrame = True; // for next time
	}

	// Write the input data to the file, with the start code in front:
	addData(start_code, 4, presentationTime);

	// Call the parent class to complete the normal file write with the input data:
	StreamSink::afterGettingFrame(frameSize, numTruncatedBytes, presentationTime);
}