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/*
* Simple program to grab images from VDR Recording
*
* Copyright (c) 2015 Andreas Brachold
*
* This code is distributed under the terms and conditions of the
* GNU GENERAL PUBLIC LICENSE. See the file COPYING for details.
*
*/
#include <stdlib.h>
#include <iostream>
#include <sstream>
#include "ffm.h"
#define STRING(s) #s
#ifndef FFMPEG_BIN
#define FFMPEG_BIN "ffmpeg"
#endif
bool decode (const char* szMPVfile, /* const tPackedList & packed, */
const char* szTmpMask,
int width, int height)
{
int frame_width = 0;
int frame_height = 0;
int keep_aspect_ratio = 1;
#if 0
std::cerr << "szMPVfile:" << szMPVfile << std::endl;
std::cerr << "szTmpMask:" << szTmpMask << std::endl;
std::cerr << "width:" << width << std::endl;
std::cerr << "height:" << height << std::endl;
#endif
if (width > 0 || height > 0) {
if (width > 0) {
frame_width = width;
keep_aspect_ratio |= 1;
} else {
keep_aspect_ratio &= ~1;
}
if (height > 0) {
frame_height = height;
keep_aspect_ratio |= 2;
} else {
keep_aspect_ratio &= ~2;
}
}
std::stringstream ss;
ss << FFMPEG_BIN;
ss << " -loglevel ";
#ifdef DEBUG
ss << "verbose -report";
#else
ss << "quiet";
#endif
ss << " -an -i '" << szMPVfile << "'";
if((keep_aspect_ratio & 2) == keep_aspect_ratio) { // Nur Höhe wurde definiert
ss << " -vf scale=-1:" << frame_height;
} else if((keep_aspect_ratio & 1) == keep_aspect_ratio) { // Nur Weite wurde definiert
ss << " -vf scale=" << frame_width << ":-1";
} else {
ss << " -vf scale=" << frame_width << ":" << frame_height;
}
ss << " '" << szTmpMask << "'";
#ifdef DEBUG
std::cerr << ss.str();
#endif
return (0 == system(ss.str().c_str()));
}
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