Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.0 / libzmpeg3 / mpeg3split.c

diff --git a/cinelerra-5.0/libzmpeg3/mpeg3split.c b/cinelerra-5.0/libzmpeg3/mpeg3split.c
deleted file mode 100644 (file)
index 96f2431..0000000
--- a/cinelerra-5.0/libzmpeg3/mpeg3split.c
+++ /dev/null
@@ -1,165 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "mpeg3private.inc"
-
-void copy_data(FILE *out, FILE *in, long bytes)
-{
-       long fragment_size = 0x100000;
-       char *buffer = malloc(fragment_size);
-       long i;
-       
-       for(i = 0; i < bytes; i += fragment_size)
-       {
-               if(i + fragment_size > bytes) fragment_size = bytes - i;
-               if(!fread(buffer, 1, fragment_size, in))
-               {
-                       perror("copy_data");
-               }
-               if(!fwrite(buffer, 1, fragment_size, out))
-               {
-                       perror("copy_data");
-               }
-       }
-       
-       free(buffer);
-}
-
-void split_video(char *path, long default_fragment_size)
-{
-       long current_byte = 0;
-       int result = 0;
-       int i = 0;
-       long total_bytes;
-       FILE *in = fopen(path, "r");
-       char *sequence_hdr;
-       long sequence_hdr_size;
-       unsigned long header = 0;
-       long header_start;
-       long header_end;
-
-       if(!in)
-       {
-               perror("split_file");
-               return;
-       }
-       fseek(in, 0, SEEK_END);
-       total_bytes = ftell(in);
-       fseek(in, 0, SEEK_SET);
-
-// Copy sequence header
-       do{
-               header <<= 8;
-               header = (header & 0xffffffff) | getc(in);
-       }while(header != MPEG3_SEQUENCE_START_CODE && !feof(in));
-
-       header_start = ftell(in) - 4;
-       do{
-               header <<= 8;
-               header = (header & 0xffffffff) | getc(in);
-       }while(header != MPEG3_GOP_START_CODE && !feof(in));
-       header_end = ftell(in) - 4;
-
-       sequence_hdr_size = header_end - header_start;
-       sequence_hdr = malloc(sequence_hdr_size);
-       fseek(in, header_start, SEEK_SET);
-       fread(sequence_hdr, 1, sequence_hdr_size, in);
-       fseek(in, 0, SEEK_SET);
-
-       while(current_byte < total_bytes && !result)
-       {
-               FILE *out;
-               char outpath[1024];
-               long fragment_size;
-
-               sprintf(outpath, "%s%02d", path, i);
-               out = fopen(outpath, "w");
-               if(!out)
-               {
-                       perror("split_file");
-                       break;
-               }
-
-// Default fragment size
-               fragment_size = default_fragment_size;
-// Corrected fragment size
-               if(current_byte + fragment_size >= total_bytes)
-               {
-                       fragment_size = total_bytes - current_byte;
-               }
-               else
-               {
-                       header = 0;
-
-// Get GOP header
-                       fseek(in, current_byte + fragment_size, SEEK_SET);
-                       do
-                       {
-                               fseek(in, -1, SEEK_CUR);
-                               header >>= 8;
-                               header |= ((unsigned long)fgetc(in)) << 24;
-                               fseek(in, -1, SEEK_CUR);
-                       }while(ftell(in) > 0 && header != MPEG3_GOP_START_CODE);
-                       fragment_size = ftell(in) - current_byte;
-                       fseek(in, current_byte, SEEK_SET);
-               }
-
-// Put sequence header
-               if(current_byte > 0)
-               {
-                       fwrite(sequence_hdr, 1, sequence_hdr_size, out);
-               }
-
-// Put data
-               copy_data(out, in, fragment_size);
-
-               fclose(out);
-               i++;
-               current_byte += fragment_size; 
-       }
-       free(sequence_hdr);
-}
-
-int main(int argc, char *argv[])
-{
-       long bytes = 0;
-       int i;
-       
-       if(argc < 2)
-       {
-               fprintf(stderr, "Split elementary streams into chunks of bytes.\n"
-                       "Usage: mpeg3split -b bytes <infile>\n");
-               exit(1);
-       }
-       
-       for(i = 1; i < argc; i++)
-       {
-               if(!strcmp(argv[i], "-b"))
-               {
-                       if(i < argc - 1)
-                       {
-                               i++;
-                               bytes = atol(argv[i]);
-                       }
-                       else
-                       {
-                               fprintf(stderr, "-b must be paired with a value\n");
-                               exit(1);
-                       }
-               }
-               else
-               if(bytes > 0)
-               {
-// Split a file
-                       split_video(argv[i], bytes);
-               }
-               else
-               {
-                       fprintf(stderr, "No value for bytes specified,\n");
-                       exit(1);
-               }
-       }
-}
-
-