#include <cstdlib>

#include "TLibCommon/TComPicYuv.h"
#include "TLibVideoIO/TVideoIOYuv.h"
#include "../../App/TAppCommon/program_options_lite.h"

using namespace std;
namespace po = df::program_options_lite;

int main(int argc, const char** argv)
{
  bool do_help;
  string filename_in, filename_out;
  unsigned int width, height;
  unsigned int bitdepth_in, bitdepth_out;
  unsigned int num_frames;
  unsigned int num_frames_skip;

  po::Options opts;
  opts.addOptions()
  ("help", do_help, false, "this help text")
  ("InputFile,i", filename_in, string(""), "input file to convert")
  ("OutputFile,o", filename_out, string(""), "output file")
  ("SourceWidth", width, 0u, "source picture width")
  ("SourceHeight", height, 0u, "source picture height")
  ("InputBitDepth", bitdepth_in, 8u, "bit-depth of input file")
  ("OutputBitDepth", bitdepth_out, 8u, "bit-depth of output file")
  ("NumFrames", num_frames, 0xffffffffu, "number of frames to process")
  ("FrameSkip,-fs", num_frames_skip, 0u, "Number of frames to skip at start of input YUV")
  ;

  po::setDefaults(opts);
  po::scanArgv(opts, argc, argv);

  if (argc == 1 || do_help)
  {
    /* argc == 1: no options have been specified */
    po::doHelp(cout, opts);
    return EXIT_FAILURE;
  }

  TVideoIOYuv input;
  TVideoIOYuv output;

  input.open((char*)filename_in.c_str(), false, bitdepth_in, bitdepth_out);
  output.open((char*)filename_out.c_str(), true, bitdepth_out, bitdepth_out);

  input.skipFrames(num_frames_skip, width, height);

  TComPicYuv frame;
  frame.create( width, height, 1, 1, 0 );

  int pad[2] = {0, 0};

  unsigned int num_frames_processed = 0;
  while (!input.isEof()) {
    TComPicYuv *stupid = &frame;
    input.read(stupid, pad);

#if 0
    Pel* img = frame.getLumaAddr();
    for (int y = 0; y < height; y++) {
      for (int x = 0; x < height; x++)
        img[x] = 0;
      img += frame.getStride();
    }
    img = frame.getLumaAddr();
    img[0] = 1;
#endif

    output.write(&frame, pad);
    num_frames_processed++;
    if (num_frames_processed == num_frames)
      break;
  }

  input.close();
  output.close();

  return EXIT_SUCCESS;
}