X-Git-Url: https://git.llucax.com/z.facultad/75.06/jacu.git/blobdiff_plain/0f7b83372a77836665757c3b4037f63204e349f0..50b99b153d4e8d299e999eca83678ae23b2accbc:/src/ppmc/ppmcmain.c

diff --git a/src/ppmc/ppmcmain.c b/src/ppmc/ppmcmain.c
index 3e83e7c..7a99d12 100644
--- a/src/ppmc/ppmcmain.c
+++ b/src/ppmc/ppmcmain.c
@@ -1,16 +1,16 @@
 /*
- Copyright (C) Arturo San Emeterio Campos 1999. All rights reserved.
- Permission is granted to make verbatim copies of this file for private 
- use only. There is ABSOLUTELY NO WARRANTY. Use it at your OWN RISK.
+   Copyright (C) Arturo San Emeterio Campos 1999. All rights reserved.
+   Permission is granted to make verbatim copies of this file for private 
+   use only. There is ABSOLUTELY NO WARRANTY. Use it at your OWN RISK.
 
- This file is: "ppmcmain.c"
- Email: arturo@arturocampos.com
- Web: http://www.arturocampos.com
+   This file is: "ppmcmain.c"
+Email: arturo@arturocampos.com
+Web: http://www.arturocampos.com
 
- Part of the ppmc encoder only.
+Part of the ppmc encoder only.
 
- This module is the main module and calls the different modules to do
- the encoding of a file. When done prints bpb and kbyps.
+This module is the main module and calls the different modules to do
+the encoding of a file. When done prints bpb and kbyps.
 */
 
 
@@ -27,133 +27,133 @@ long filesize(FILE *stream);
 //Main
 int main (char argc, char *argv[])
 {
- unsigned long counter, //temporal counter for loops like for or while
-          counter2,     //another temporal counter for sub loops
-          size_file_input;     //the size of the input file
+	unsigned long counter, //temporal counter for loops like for or while
+		      counter2,     //another temporal counter for sub loops
+		      size_file_input;     //the size of the input file
 
 
- // Print title, version and copyright
- printf("PPMC using range coder. (without exclusion)\n");
- printf("Copyright (C) Arturo San Emeterio Campos 1999. All rights reserved.\n");
- printf("Permission is granted to make verbatim copies of this program for private\n");
- printf("use only. There is ABSOLUTELY NO WARRANTY. Use it at your OWN RISK.\n");
+	// Print title, version and copyright
+	printf("PPMC using range coder. (without exclusion)\n");
+	printf("Copyright (C) Arturo San Emeterio Campos 1999. All rights reserved.\n");
+	printf("Permission is granted to make verbatim copies of this program for private\n");
+	printf("use only. There is ABSOLUTELY NO WARRANTY. Use it at your OWN RISK.\n");
 
- // Check for correct number of parameters
- if(argc!=3)
-   {
-   printf("Bad number of arguments.\n");
-   exit(1);
-   }
+	// Check for correct number of parameters
+	if(argc!=3)
+	{
+		printf("Bad number of arguments.\n");
+		exit(1);
+	}
 
 
- // Try to open input and output files
- if((file_input=fopen(argv[1],"r+b"))==NULL)
-   {
-   printf("Couldn't open %s.\n",argv[1]);
-   exit(1);
-   }
+	// Try to open input and output files
+	if((file_input=fopen(argv[1],"r+b"))==NULL)
+	{
+		printf("Couldn't open %s.\n",argv[1]);
+		exit(1);
+	}
 
- if((file_output=fopen(argv[2],"w+b"))==NULL)
-   {
-   printf("Couldn't create %s.\n",argv[2]);
-   exit(1);
-   }
+	if((file_output=fopen(argv[2],"w+b"))==NULL)
+	{
+		printf("Couldn't create %s.\n",argv[2]);
+		exit(1);
+	}
 
 
- // Check input file length and not accept 0 length files
- size_file_input=filesize(file_input);
+	// Check input file length and not accept 0 length files
+	size_file_input=filesize(file_input);
 
- if(size_file_input<5)
-   {
-   printf("Can't work with files below than 5 bytes!");
-   exit(1);
-   }
+	if(size_file_input<5)
+	{
+		printf("Can't work with files below than 5 bytes!");
+		exit(1);
+	}
 
 
- // First output file length
- fwrite(&size_file_input,1,4,file_output);      //input length
+	// First output file length
+	fwrite(&size_file_input,1,4,file_output);      //input length
 
 
- // Initialize ppmc encoder
- ppmc_alloc_memory();           //get memory
- ppmc_initialize_contexts();    //initialize model
- ppmc_encoder_initialize();
+	// Initialize ppmc encoder
+	ppmc_alloc_memory();           //get memory
+	ppmc_initialize_contexts();    //initialize model
+	ppmc_encoder_initialize();
 
- // Initialize range coder
- range_coder_init(&rc_coder,file_output);
+	// Initialize range coder
+	range_coder_init(&rc_coder,file_output);
 
 
- // Start main loop which codes the file
- while((byte=fgetc(file_input))!=EOF)
- {
+	// Start main loop which codes the file
+	while((byte=fgetc(file_input))!=EOF)
+	{
 
- // Try to code current byte under order-4 if possible then go to lower orders
- if(ppmc_code_byte_order4()==0)
- if(ppmc_code_byte_order3()==0)
- if(ppmc_code_byte_order2()==0)
- if(ppmc_code_byte_order1()==0)
-   if(ppmc_code_byte_order0()==0) //else try to code under order-0
-     {
-     // Code under order-(-1)
-     ppmc_get_prob_ordern1();
-     range_coder_encode(&rc_coder,total_cump,symb_cump,symb_prob);
-     coded_in_order=0;   //update all the tables (unless order-(-1))
-     }
+		// Try to code current byte under order-4 if possible then go to lower orders
+		if(ppmc_code_byte_order4()==0)
+			if(ppmc_code_byte_order3()==0)
+				if(ppmc_code_byte_order2()==0)
+					if(ppmc_code_byte_order1()==0)
+						if(ppmc_code_byte_order0()==0) //else try to code under order-0
+						{
+							// Code under order-(-1)
+							ppmc_get_prob_ordern1();
+							range_coder_encode(&rc_coder,total_cump,symb_cump,symb_prob);
+							coded_in_order=0;   //update all the tables (unless order-(-1))
+						}
 
 
- // Now do update exclusion
+		// Now do update exclusion
 
- switch(coded_in_order)
-   {
-   case 0: ppmc_update_order0();        //update only order-0
-   case 1: ppmc_update_order1();        //update order-0 and order-1
-   case 2: ppmc_update_order2();        //update order-2 1 and 0...
-   case 3: ppmc_update_order3();
-   case 4: ppmc_update_order4();
-   default: break;
-   };
+		switch(coded_in_order)
+		{
+			case 0: ppmc_update_order0();        //update only order-0
+			case 1: ppmc_update_order1();        //update order-0 and order-1
+			case 2: ppmc_update_order2();        //update order-2 1 and 0...
+			case 3: ppmc_update_order3();
+			case 4: ppmc_update_order4();
+			default: break;
+		};
 
 
 
- // Update order variables
+		// Update order variables
 
- o4_byte=o3_byte;
- o3_byte=o2_byte;
- o2_byte=o1_byte;
- o1_byte=byte;  //current one is next time order-1
+		o4_byte=o3_byte;
+		o3_byte=o2_byte;
+		o2_byte=o1_byte;
+		o1_byte=byte;  //current one is next time order-1
 
 
- // Check if we run out of memory, in that case, flush the encoder
+		// Check if we run out of memory, in that case, flush the encoder
 
- if(ppmc_out_of_memory==1)
-   {
-   printf("Flushing memory! Output file might be not decodable.\n");
-   ppmc_flush_mem_enc();
-   }
+		if(ppmc_out_of_memory==1)
+		{
+			printf("Flushing memory! Output file might be not decodable.\n");
+			ppmc_flush_mem_enc();
+		}
 
 
- }
+	}
 
 
- // Flush range coder
- range_coder_flush(&rc_coder);
+	// Flush range coder
+	range_coder_flush(&rc_coder);
 
- // Free memory
- ppmc_free_memory();
+	// Free memory
+	ppmc_free_memory();
 
 
- // Print bpb and kbyps
- printf("%s at %f bpb.\n",argv[1],((float)filesize(file_output)/(float)size_file_input)*(float)8);
+	// Print bpb and kbyps
+	printf("%s at %f bpb.\n",argv[1],((float)filesize(file_output)/(float)size_file_input)*(float)8);
 
 
- // Close file handles
- fclose(file_input);
- fclose(file_output);
+	// Close file handles
+	fclose(file_input);
+	fclose(file_output);
 
 
 
- // Nicely exit
- return 0;
+	// Nicely exit
+	return 0;
 }
 
 
@@ -164,13 +164,13 @@ int main (char argc, char *argv[])
 // Returns the file size of a given file.
 long filesize(FILE *stream)
 {
-   long curpos, length;
+	long curpos, length;
 
-   curpos = ftell(stream);
-   fseek(stream, 0L, SEEK_END);
-   length = ftell(stream);
-   fseek(stream, curpos, SEEK_SET);
-   return length;
+	curpos = ftell(stream);
+	fseek(stream, 0L, SEEK_END);
+	length = ftell(stream);
+	fseek(stream, curpos, SEEK_SET);
+	return length;
 }