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116 lines
2.2 KiB
116 lines
2.2 KiB
/*
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* tool to check and gain some basic information about videodum-files
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*/
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/* enable files > 2GB on 32 bit systems */
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#define _LARGEFILE64_SOURCE 1
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#define _FILE_OFFSET_BITS 64
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#ifdef BUILD_WINDOWS
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#else
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#include <arpa/inet.h>
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#endif
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#include <string>
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std::string convert_from_pixelformat (uint32_t fmt) {
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char txt[5];
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snprintf (txt, 5, "%c%c%c%c", ((char*)&fmt)[0], ((char*)&fmt)[1], ((char*)&fmt)[2], ((char*)&fmt)[3]);
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return txt;
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};
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int main(int argc, char **argv) {
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int fd;
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int cnt = 0;
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char *inbuf = NULL;
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int inbufsize = 0;
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uint32_t i;
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uint32_t size;
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if (argc != 2) {
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printf ("please give a file name as parameter.\n");
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printf ("checkdumpfile FILE\n");
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printf ("\n");
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return -1;
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}
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printf ("reading file :'%s'\n", argv[1]);
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if ((fd = open (argv[1], O_RDONLY)) < 0) {
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printf ("could not open file: %s\n", strerror(errno));
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}
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//
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// read header w, h, pixfmt
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if (read (fd, &i, 4) != 4) {
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printf ("could not read all bytes.\n");
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close (fd);
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return -1;
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}
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printf (" Width: %d\n", ntohl(i));
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if (read (fd, &i, 4) != 4) {
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printf ("could not read all bytes.\n");
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close (fd);
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return -1;
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}
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printf (" Height: %d\n", ntohl(i));
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if (read (fd, &i, 4) != 4) {
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printf ("could not read all bytes.\n");
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close (fd);
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return -1;
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}
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printf(" Pixfmt: %s\n", convert_from_pixelformat(ntohl(i)).c_str());
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//
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// read frame
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while (read (fd, &size, 4) == 4) {
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size = ntohl(size);
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if (read (fd, &i, 4) != 4) {
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printf ("could not read all bytes.\n");
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close (fd);
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return -1;
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}
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i = ntohl(i);
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if (inbuf == NULL){
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inbuf = (char*) malloc (size);
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inbufsize = size;
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}
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else if (inbufsize < size) {
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inbuf = (char*)realloc(inbuf, size);
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inbufsize = size;
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}
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if (inbuf == NULL) {
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printf ("Error could not allocate enough memory\n");
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close (fd);
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return -1;
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}
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if (read (fd, inbuf, size) != size) {
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printf ("could not read to next frame.\n");
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close (fd);
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return -1;
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}
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printf ("Frame: %-9d Timestamp:%-9d Size:%d\n", cnt++, i, size);
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}
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printf ("\nFile seems to be fine.\n");
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close (fd);
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return 0;
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}
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