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// Copyright (C) 2010 Dirk Vanden Boer <dirk.vdb@gmail.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#include "rgbwriter.h"
#include <stdexcept>
#include <cassert>
#include <cstring>
using namespace std;
namespace ffmpegthumbnailer
{
RgbWriter::RgbWriter(const string& outputFile)
: ImageWriter()
, m_OutputBuffer(nullptr)
{
m_FilePtr = outputFile == "-" ? stdout : fopen(outputFile.c_str(), "wb");
if (!m_FilePtr)
{
throw logic_error(string("Failed to open output file: ") + outputFile);
}
}
RgbWriter::RgbWriter(std::vector<uint8_t>& outputBuffer)
: ImageWriter()
, m_FilePtr(nullptr)
, m_OutputBuffer(&outputBuffer)
{
}
RgbWriter::~RgbWriter()
{
if (m_FilePtr)
{
fclose(m_FilePtr);
}
}
void RgbWriter::setText(const string& /*key*/, const string& /*value*/)
{
}
void RgbWriter::writeFrame(uint8_t** rgbData, int width, int height, int /*quality*/)
{
const auto lineSize = static_cast<size_t>(width * 3);
if (m_FilePtr)
{
for (int i = 0; i < height; ++i)
{
fwrite(rgbData[i], sizeof(uint8_t), lineSize, m_FilePtr);
}
}
else
{
m_OutputBuffer->resize(width * height * 3);
for (int i = 0; i < height; ++i)
{
memcpy(m_OutputBuffer->data() + (lineSize * i), rgbData[i], lineSize);
}
}
}
}
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