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dvd_title [2013/08/01 16:44] – created beandogdvd_title [2018/03/28 05:53] (current) – beandog
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 ====== DVD Title ====== ====== DVD Title ======
  
-Each disc will have a title assigned to it.  This is a small string.  The disc title is **not** a unique identifer in itself, but it can be used as an element in creating one if you are archiving your titles.+  * [[dvd_info]] 
 +  * [[lsdvd]] 
 +  * [[volname]] 
 + 
 +I used to have a ''dvd_title'' binary I wrote, but I merged it into [[dvd_info]] instead. It returns the UDF volume name. It must be an ISO or the DVD itself in the drive to print it. 
 + 
 +<code> 
 +$ dvd_info --title 
 +BATMAN_BEYOND_SEASON_1_DISC_2 
 +</code> 
 + 
 +Each disc will have a title assigned to it.  This is a small string.  The disc title is **not** a unique identifer in itself, but it can be used as an element in creating one if you are archiving your titles. I recommend using the [[dvd_id|DVD id instead]]. 
 + 
 +Most of this page content is old, since I have [[dvd_info]] now. 
 + 
 +Most programs that access your DVD will at some point usually spit it out as part of displaying the metadata.
  
 There are a few ways to get the title from a disc.  In this case, I'm using Ruby Spears Superman, disc one. There are a few ways to get the title from a disc.  In this case, I'm using Ruby Spears Superman, disc one.
 +
 +Volname is the simplest one, if you are looking to use it for a shell script:
  
 <code> <code>
Line 9: Line 26:
 RUBY_SPEARS_SUPERMAN_DISC_01 RUBY_SPEARS_SUPERMAN_DISC_01
 </code> </code>
 +
 +Some other ways to get it:
 +
 +<code>
 +lsdvd dvd.iso 2> /dev/null | grep "^Disc Title" | cut -d " " -f 3-
 +</code>
 +
 +Or you can use ''dd'':
 +
 +<code>
 +dd if=VIDEO_TS.IFO bs=1 count=32 skip=64 2> /dev/null
 +</code>
 +
 +Also, here's a small C program I <del>wrote</del> cobbled together from multiple sources to get it as well:
 +
 +<code c>
 +#include <stdio.h>
 +#include <stdlib.h>
 +#include <unistd.h>
 +#include <string.h>
 +#include <sys/ioctl.h>
 +#include <fcntl.h>
 +#include <linux/cdrom.h>
 +
 +/**
 + * A simple little program to get the DVD title
 + *
 + * Checks if the device is a DVD drive or not, and if it is, also looks to see
 + * if it can be polled or not.
 + */
 +
 +int main(int argc, char **argv) {
 +
 + int cdrom;
 + int drive_status;
 + int disc_status;
 + char* dvd_device;
 + char* status;
 + char title[33];
 + FILE* filehandle = 0;
 + int x, y, z;
 +
 + if(argc == 1)
 + dvd_device = "/dev/dvd";
 + else
 + dvd_device = argv[1];
 +
 + // Check if device exists
 + if(access(dvd_device, F_OK) != 0) {
 + fprintf(stderr, "cannot access %s\n", dvd_device);
 + return 1;
 + }
 +
 + // Open device
 + cdrom = open(dvd_device, O_RDONLY | O_NONBLOCK);
 + if(cdrom < 0) {
 + fprintf(stderr, "error opening %s\n", dvd_device);
 + return 1;
 + }
 +
 + drive_status = ioctl(cdrom, CDROM_DRIVE_STATUS);
 +
 + // If the device is a DVD drive, then wait up to 30 seconds for it to be ready (not opening or closing),
 + // and then check if there is a disc in the tray.  If there's no disc, exit quietly.
 + // If the drive is open, then it just quietly exits.
 + if(drive_status > 0) {
 + int max_sleepy_time = 30;
 + int num_sleepy_times = 0;
 + while(ioctl(cdrom, CDROM_DRIVE_STATUS) == CDS_DRIVE_NOT_READY && num_sleepy_times < max_sleepy_time) {
 + sleep(1);
 + num_sleepy_times++;
 + }
 + if(ioctl(cdrom, CDROM_DRIVE_STATUS) != CDS_DISC_OK) {
 + close(cdrom);
 + return 1;
 + }
 + }
 +
 + close(cdrom);
 +
 + filehandle = fopen(dvd_device, "r");
 + if(filehandle == NULL) {
 + fprintf(stderr, "could not open device %s for reading\n", dvd_device);
 + return 1;
 + }
 +
 + if(fseek(filehandle, 32808, SEEK_SET) == -1) {
 + fprintf(stderr, "could not seek on device %s\n", dvd_device);
 + fclose(filehandle);
 + return 1;
 + }
 +
 + x = fread(title, 1, 32, filehandle);
 + if(x == 0) {
 + fprintf(stderr, "could not read device %s\n", dvd_device);
 + fclose(filehandle);
 + return 1;
 + }
 + title[32] = '\0';
 +
 + fclose(filehandle);
 +
 + y = sizeof(title);
 + while(y-- > 2) {
 + if(title[y] == ' ') {
 + title[y] = '\0';
 + }
 + }
 +
 + for(z = 0; z < strlen(title); z++) {
 + printf("%c", title[z]);
 + }
 + printf("\n");
 +
 + return 0;
 +}
 +</code>
 +

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