mpv/TOOLS/360m_convert.c

42 lines
1.0 KiB
C

/**
* convert D-Cinema Video (MPEG2 in GXF, SMPTE 360M) to a
* MPEG-ES file that MPlayer can play (use -demuxer mpeges).
* Usage: 360m_convert <infile> <outfile>
*/
#include <stdlib.h>
#include <stdio.h>
int main(int argc, char *argv[]) {
FILE *in = fopen(argv[1], "r");
FILE *out = fopen(argv[2], "w");
int discard = 0;
unsigned char buf[4];
if (!in) {
printf("Could not open %s for reading\n", argv[1]);
return EXIT_FAILURE;
}
if (!out) {
printf("Could not open %s for writing\n", argv[2]);
return EXIT_FAILURE;
}
fread(buf, 4, 1, in);
do {
if (buf[0] == 0 && buf[1] == 0 && buf[2] == 1) {
// encountered a header
// skip data between a 0xbf or 0xbc header and the next 0x00 header
if (buf[3] == 0xbc || buf[3] == 0xbf)
discard = 1;
else if (buf[3] == 0)
discard = 0;
}
if (!discard)
fwrite(&buf[0], 1, 1, out);
buf[0] = buf[1];
buf[1] = buf[2];
buf[2] = buf[3];
fread(&buf[3], 1, 1, in);
} while (!feof(in));
return EXIT_SUCCESS;
}