#include <config.h>
#include <stdlib.h>
#include <unistd.h>
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#include <sys/stat.h>

#include <mjpeg_logging.h>
#include <format_codes.h>

#include "interact.hh"
#include "videostrm.hh"
#include "audiostrm.hh"
#include "mplexconsts.hh"


#if 0
int opt_verbosity = 1;
int opt_buffer_size = 46;
int opt_data_rate = 0;		/* 3486 = 174300B/sec would be right for VCD */
int opt_video_offset = 0;
int opt_audio_offset = 0;
int opt_sector_size = 2324;
int opt_VBR = 0;
int opt_mpeg = 1;
int opt_mux_format = 0;		/* Generic MPEG-1 stream as default */
int opt_multifile_segment = 0;
int opt_always_system_headers = 0;
int opt_packets_per_pack = 20;
bool opt_ignore_underrun = false;
off_t opt_max_segment_size = 0;

/*************************************************************************
    Startbildschirm und Anzahl der Argumente

    Intro Screen and argument check
*************************************************************************/

static void
Usage (char *str)
{
  fprintf (stderr,
	   "mjpegtools mplex version " VERSION "\n"
	   "Usage: %s [params] -o <output filename pattern> <input file>... \n"
	   "         %%d in the output file name is by segment count\n"
	   "  where possible params are:\n"
	   "--verbose|-v num\n"
	   "  Level of verbosity. 0 = quiet, 1 = normal 2 = verbose/debug\n"
	   "--format|-f fmt\n"
	   "  Set defaults for particular MPEG profiles\n"
	   "  [0 = Generic MPEG1, 1 = VCD, 2 = user-rate VCD, 3 = Generic MPEG2,\n"
	   "   4 = SVCD, 5 = user-rate SVCD\n"
	   "   6 = VCD Stills, 7 = SVCD Stills, 8 = DVD]\n"
	   "--mux-bitrate|-r num\n"
	   "  Specify data rate of output stream in kbit/sec\n"
	   "    (default 0=Compute from source streams)\n"
	   "--video-buffer|-b num\n"
	   "  Specifies decoder buffers size in kB.  [ 20...2000]\n"
	   "--mux-limit|-l num\n"
	   "  Multiplex only num seconds of material (default 0=multiplex all)\n"
	   "--sync-offset|-O num\n"
	   "  Specify offset of timestamps (video-audio) in mSec\n"
	   "--sector-size|-s num\n"
	   "  Specify sector size in bytes for generic formats [256..16384]\n"
	   "--vbr|-V\n"
	   "  Multiplex variable bit-rate video\n"
	   "--packets-per-pack|-p num\n"
	   "  Number of packets per pack generic formats [1..100]\n"
	   "--system-headers|-h\n"
	   "  Create System header in every pack in generic formats\n"
	   "--max-segment-size|-S size\n"
	   "  Maximum size of output file(s) in Mbyte (default: 2000) (0 = no limit)\n"
	   "--split-segment|-M\n"
	   "  Simply split a sequence across files rather than building run-out/run-in\n"
	   "--help|-?\n" "  Print this lot out!\n", str);
  exit (1);
}

static const char short_options[] = "o:b:r:O:v:m:f:l:s:S:q:p:VXMeh";

#if defined(HAVE_GETOPT_LONG)
static struct option long_options[] = {
  {"verbose", 1, 0, 'v'},
  {"format", 1, 0, 'f'},
  {"mux-bitrate", 1, 0, 'r'},
  {"video-buffer", 1, 0, 'b'},
  {"output", 1, 0, 'o'},
  {"sync-offset", 1, 0, 'O'},
  {"vbr", 1, 0, 'V'},
  {"system-headers", 1, 0, 'h'},
  {"split-segment", 0, &opt_multifile_segment, 1},
  {"max-segment-size", 1, 0, 'S'},
  {"mux-upto", 1, 0, 'l'},
  {"packets-per-pack", 1, 0, 'p'},
  {"sector-size", 1, 0, 's'},
  {"help", 0, 0, '?'},
  {0, 0, 0, 0}
};
#endif

int
intro_and_options (int argc, char *argv[], char **multplex_outfile)
{
  int n;

#if defined(HAVE_GETOPT_LONG)
  while ((n = getopt_long (argc, argv, short_options, long_options, NULL)) != -1)
#else
  while ((n = getopt (argc, argv, short_options)) != -1)
#endif
  {
    switch (n) {
      case 0:
	break;
      case 'm':
	opt_mpeg = atoi (optarg);
	if (opt_mpeg < 1 || opt_mpeg > 2)
	  Usage (argv[0]);

	break;
      case 'v':
	opt_verbosity = atoi (optarg);
	if (opt_verbosity < 0 || opt_verbosity > 2)
	  Usage (argv[0]);
	break;

      case 'V':
	opt_VBR = 1;
	break;

      case 'h':
	opt_always_system_headers = 1;
	break;

      case 'b':
	opt_buffer_size = atoi (optarg);
	if (opt_buffer_size < 0 || opt_buffer_size > 1000)
	  Usage (argv[0]);
	break;

      case 'r':
	opt_data_rate = atoi (optarg);
	if (opt_data_rate < 0)
	  Usage (argv[0]);
	/* Convert from kbit/sec (user spec) to 50B/sec units... */
	opt_data_rate = ((opt_data_rate * 1000 / 8 + 49) / 50) * 50;
	break;

      case 'O':
	opt_video_offset = atoi (optarg);
	if (opt_video_offset < 0) {
	  opt_audio_offset = -opt_video_offset;
	  opt_video_offset = 0;
	}
	break;

      case 'p':
	opt_packets_per_pack = atoi (optarg);
	if (opt_packets_per_pack < 1 || opt_packets_per_pack > 100)
	  Usage (argv[0]);
	break;


      case 'f':
	opt_mux_format = atoi (optarg);
	if (opt_mux_format != MPEG_FORMAT_DVD &&
	    (opt_mux_format < MPEG_FORMAT_MPEG1 || opt_mux_format > MPEG_FORMAT_LAST)
	  )
	  Usage (argv[0]);
	break;
      case 's':
	opt_sector_size = atoi (optarg);
	if (opt_sector_size < 256 || opt_sector_size > 16384)
	  Usage (argv[0]);
	break;
      case 'S':
	opt_max_segment_size = atoi (optarg);
	if (opt_max_segment_size < 0)
	  Usage (argv[0]);
	opt_max_segment_size *= 1024 * 1024;
	break;
      case 'M':
	opt_multifile_segment = 1;
	break;
      case '?':
      default:
	Usage (argv[0]);
	break;
    }
  }
  (void) mjpeg_default_handler_verbosity (opt_verbosity);
  mjpeg_info ("mplex version %s (%s)", MPLEX_VER, MPLEX_DATE);
  return optind - 1;
}
#endif