mirror of
https://github.com/outbackdingo/UltraGrid.git
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55 lines
2.0 KiB
C++
55 lines
2.0 KiB
C++
#include <cassert>
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#include <fstream>
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#include <iostream>
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#include <string>
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#include <vector>
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#include "../src/config_unix.h"
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#include "../src/video_codec.h"
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using std::cout;
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using std::cerr;
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using std::ifstream;
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using std::ofstream;
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using std::stoi;
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int main(int argc, char *argv[]) {
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if (argc < 7) {
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cout << "Usage:\n"
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"\t" << argv[0] << " <width> <height> <in_codec> <out_codec> <in_file> <out_file>\n";
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return 1;
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}
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int width = stoi(argv[1]);
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int height = stoi(argv[2]);
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codec_t in_codec = get_codec_from_name(argv[3]);
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codec_t out_codec = get_codec_from_name(argv[4]);
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ifstream in(argv[5], ifstream::ate | ifstream::binary);
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std::ofstream out(argv[6], ofstream::binary);
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in.exceptions(ifstream::failbit | ifstream::badbit | ifstream::eofbit);
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out.exceptions(ofstream::failbit | ofstream::badbit);
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assert (width && height && in_codec && out_codec && in && out);
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size_t in_size = vc_get_datalen(width, height, in_codec);
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assert(in.tellg() >= in_size);
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in.seekg (0, ifstream::beg);
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std::vector<char> in_data(in_size);
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in.read(in_data.data(), in_size);
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std::vector<char> out_data(vc_get_datalen(width, height, out_codec));
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auto *decode = get_decoder_from_to(in_codec, out_codec, true);
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if (decode == nullptr) {
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cerr << "Cannot find decoder from " << argv[3] << " to " << argv[4] << "!\n";
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return 1;
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}
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size_t dst_linesize = vc_get_linesize(width, out_codec);
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for (int y = 0; y < height; ++y) {
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decode(reinterpret_cast<unsigned char *>(&out_data[y * dst_linesize]),
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reinterpret_cast<unsigned char *>(&in_data[y * vc_get_linesize(width, in_codec)]),
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dst_linesize, 0, 8, 16);
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}
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out.write(out_data.data(), out_data.size());
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}
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