#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h>

#include <dos/rdargs.h>
#include <exec/memory.h>
#include <workbench/startup.h>
#include <workbench/workbench.h>
#include <utility/hooks.h>
#include <utility/tagitem.h>

#include <proto/exec.h>
#include <proto/dos.h>
#include <proto/utility.h>
#include <proto/icon.h>
#include <proto/wb.h>

#include <clib/macros.h>
#include <clib/alib_protos.h>

#include "mplay.h"
#include "commandline.h"


long opts[OPT_COUNT];

void *ParseCommandLine(void)
{
	struct RDArgs *rdargs;

	memset((char *)opts, 0, sizeof(opts));
	
	if (rdargs = ReadArgs(TEMPLATE, opts, NULL))
	{
		return (APTR) rdargs;
	}
	else
	{
		printf(PROGNAME __VERSION__ " - mpeg video 1 and 2 player\n");

		printf("based upon the work of the MPEG Software Simulation Group.\n");

		printf("Amiga version by Frank 'Copper' Pagels / Defect Softworks\n");
		printf("and Bifat / TEK neoscientists.\n");

		printf("FILE/A         - mpeg video file\n");
		printf("GREY/S         - use grayscale output\n");
		printf("PIP/S          - open a Picasso96 PiP window\n");
		printf("SNAP/S         - snap window to the animations's size\n");
		printf("LOOP/S         - loop eternally\n");
		printf("FPS/S          - display Frames-Per-Second counter\n");
		printf("FRAMERATE/N    - limit to frames per second\n");
		printf("IGNOREFPS/S    - play with maximum speed\n");
		printf("CUSTOMSCREEN/S - open an own (public) screen\n");
		printf("SCRWIDTH/N     - screen width\n");
		printf("SCRHEIGHT/N    - screen height\n");
		printf("DEPTH/N        - screen depth\n");
		printf("HAM/S          - open a HAM screen (DEPTH required)\n");
		printf("PUBSCREEN/K    - name of a public screen to open on\n");
		printf("BORDERLESS/S   - open a borderless window\n");
		printf("WINSIZE/K      - SMALL, HALF, LARGE, VISIBLE or FULL\n");
		printf("SAVE/K         - file name to save single frames\n");
		printf("                 file patterns: for sequential filenames\n");
		printf("                 \"printf\" style, e.g. name%%d or name%%d%%c for fieldwise storage\n");
		printf("SAVEFORMAT/K   - format for saved frames, PPM or YUV\n");
		return NULL;
	}
}


void FreeCommandLine(void *rdargs)
{
	if (rdargs)
	{
		FreeArgs((struct RDArgs *) rdargs);
	}
}









#if 0


/* option processing */
static void Process_Options(argc,argv)
int argc;                  /* argument count  */
char *argv[];              /* argument vector */
{
  int i, LastArg, NextArg;

  /* at least one argument should be present */
  if (argc<2)
  {
    printf("\n%s, %s\n",Version,Author);
    printf("Usage:  mpeg2decode {options}\n\
Options: -b  file  main bitstream (base or spatial enhancement layer)\n\
         -cn file  conformance report (n: level)\n\
         -e  file  enhancement layer bitstream (SNR or Data Partitioning)\n\
         -f        store/display interlaced video in frame format\n\
         -g        display in grey\n\
         -in file  information & statistics report  (n: level)\n\
         -l  file  file name pattern for lower layer sequence\n\
                   (for spatial scalability)\n\
         -on file  output format (0:YUV 1:SIF 2:TGA 3:PPM 4:X11 5:X11HiQ)\n\
         -q        disable warnings to stderr\n\
         -r        use double precision reference IDCT\n\
         -t        enable low level tracing to stdout\n\
         -u  file  print user_data to stdio or file\n\
         -vn       verbose output (n: level)\n\
         -x  file  filename pattern of picture substitution sequence\n\n\
File patterns:  for sequential filenames, \"printf\" style, e.g. rec%%d\n\
                 or rec%%d%%c for fieldwise storage\n\
Levels:        0:none 1:sequence 2:picture 3:slice 4:macroblock 5:block\n\n\
Example:       mpeg2decode -b bitstream.mpg -f -r -o0 rec%%d\n\
         \n");
    exit(0);
  }


  Output_Type = -1;
  i = 1;
 
  gray = 0;

  /* command-line options are proceeded by '-' */

  while(i < argc)
  {
    /* check if this is the last argument */
    LastArg = ((argc-i)==1);

    /* parse ahead to see if another flag immediately follows current
       argument (this is used to tell if a filename is missing) */

    if(!LastArg)
      NextArg = (argv[i+1][0]=='-');
    else
      NextArg = 0;

    /* second character, [1], after '-' is the switch */

    if(argv[i][0]=='-')
    {
      switch(toupper(argv[i][1]))
      {
        /* third character. [2], is the value */
      case 'B':
        Main_Bitstream_Flag = 1;

        if(NextArg || LastArg)
        {
          printf("ERROR: -b must be followed the main bitstream filename\n");
	}
        else
          Main_Bitstream_Filename = argv[++i]; 

        break;


      case 'C':

#ifdef VERIFY
        Verify_Flag = atoi(&argv[i][2]); 

        if((Verify_Flag < NO_LAYER) || (Verify_Flag > ALL_LAYERS))
        {
          printf("ERROR: -c level (%d) out of range [%d,%d]\n",
            Verify_Flag, NO_LAYER, ALL_LAYERS);
          exit(ERROR);
        }
#else  /* VERIFY */
        printf("This program not compiled for Verify_Flag option\n");
#endif /* VERIFY */
        break;

      case 'E':
        Two_Streams = 1; /* either Data Partitioning (DP) or SNR Scalability enhancment */
	                   
        if(NextArg || LastArg)
        {
          printf("ERROR: -e must be followed by filename\n");
          exit(ERROR);
        }
        else
          Enhancement_Layer_Bitstream_Filename = argv[++i]; 

        break;


      case 'F':
        Frame_Store_Flag = 1;
        break;

      case 'G':
        gray = 1;		// bild in grau anzeigen
        break;


      case 'I':
#ifdef VERIFY
        Stats_Flag = atoi(&argv[i][2]); 
#else /* VERIFY */
        printf("WARNING: This program not compiled for -i option\n");
#endif /* VERIFY */     
        break;
    
      case 'L':  /* spatial scalability flag */
        Spatial_Flag = 1;

       if(NextArg || LastArg)
       {
         printf("ERROR: -l must be followed by filename\n");
         exit(ERROR);
       }
       else
         Lower_Layer_Picture_Filename = argv[++i]; 

        break;

      case 'O':
  
        Output_Type = atoi(&argv[i][2]); 
	dnormal = 0;  

        if((Output_Type==4) || (Output_Type==5))
          Output_Picture_Filename = "";  /* no need of filename */
        else if(NextArg || LastArg)  
        {
          printf("ERROR: -o must be followed by filename\n");
          exit(ERROR);
        }
        else
        /* filename is separated by space, so it becomes the next argument */
          Output_Picture_Filename = argv[++i]; 

#ifdef DISPLAY
        if (Output_Type==T_X11HIQ)
        {
          dnormal = 1;	//hiQdither = 1;
          Output_Type=T_X11;
        }
#endif /* DISPLAY */
        break;

      case 'Q':
        Quiet_Flag = 1;
        break;

      case 'R':
        Reference_IDCT_Flag = 1;
        break;
    
      case 'T':
#ifdef TRACE
        Trace_Flag = 1;
#else /* TRACE */
        printf("WARNING: This program not compiled for -t option\n");
#endif /* TRACE */
        break;

      case 'U':
        User_Data_Flag = 1;

      case 'V':
#ifdef VERBOSE
        Verbose_Flag = atoi(&argv[i][2]); 
#else /* VERBOSE */
        printf("This program not compiled for -v option\n");
#endif /* VERBOSE */
        break;


      case 'X':
        Ersatz_Flag = 1;

       if(NextArg || LastArg)
       {
         printf("ERROR: -x must be followed by filename\n"); 
         exit(ERROR);
       }
       else
        Substitute_Picture_Filename = argv[++i]; 

        break;



      default:
        fprintf(stderr,"undefined option -%c ignored. Exiting program\n", 
          argv[i][1]);

        exit(ERROR);
    
      } /* switch() */
    } /* if argv[i][0] == '-' */
    
    i++;

  	/* check for bitstream filename argument (there must always be one, at the very end
	   of the command line arguments */

  } /* while() */


  /* options sense checking */

  if(Main_Bitstream_Flag!=1)
  {
    printf("There must be a main bitstream specified (-b filename)\n");
  }

  /* force display process to show frame pictures */
  if((Output_Type==4 || Output_Type==5) && Frame_Store_Flag)
    Display_Progressive_Flag = 1;
  else
    Display_Progressive_Flag = 0;

#ifdef VERIFY
  /* parse the bitstream, do not actually decode it completely */
  

#if 0
  if(Output_Type==-1)
  {
    Decode_Layer = Verify_Flag;
    printf("FYI: Decoding bitstream elements up to: %s\n", 
      Layer_Table[Decode_Layer]);
  }
  else
#endif
    Decode_Layer = ALL_LAYERS;

#endif /* VERIFY */

  /* no output type specified */
  if(Output_Type==-1)
  {
    Output_Type = 9; 
    Output_Picture_Filename = "";
  }


#ifdef DISPLAY
  if (Output_Type==T_X11)
  {
    if(Frame_Store_Flag)
      Display_Progressive_Flag = 1;
    else
      Display_Progressive_Flag = 0;

    Frame_Store_Flag = 1; /* to avoid calling dither() twice */
  }
#endif


}

#endif