Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision		Previous revision
vmg [2014/05/17 01:01] – beandogvmg [2015/01/16 16:49] (current) – beandog
Line 4: Line 4:
   * [[libdvdread]]   * [[libdvdread]]
  
-  * Video Manager Group (VMG) +The VMG is the collection of both the primary IFO and VOB.  It is the first IFO on the disc.
-    * [[VMGI|Video Manager Group IFO]] (VMGI): ''VIDEO_TS.IFO'', ''VIDEO_TS.BUP'' +
-    * [[VMGM|Video Manager Group Menu]] (VMGM): ''VIDEO_TS.VOB''+
  
-  * [[http://stnsoft.com/DVD/ifo.html]]+  * [[VMGI|Video Manager Group IFO]] (VMGI): ''VIDEO_TS.IFO'', ''VIDEO_TS.BUP'' 
 +  * [[VMGM|Video Manager Group Menu]] (VMGM): ''VIDEO_TS.VOB''
  
-Using above link, ''ifo_types.h'' and ''ifo_print.c'' as references. +  * [[VMG]] 
- +    * [[VMGI]] 
-<code> +      * ''VIDEO_TS.BUP'' 
-ifo_handle_t *ifo_zero; +      * ''VIDEO_TS.IFO'' 
-ifo_zero = ifoOpen(dvdread_dvd, 0); +    * [[VMGM]] 
-</code> +      * ''VIDEO_TS.VOB''
- +
-** VMG ID ** +
- +
-  * Example: DVDVIDEO-VMG +
- +
-<code> +
-char *id; +
-id = ifo_zero->vmgi_mat->vmg_identifier; +
-</code> +
- +
-** Last sector of VMG set ** +
- +
-The last sector of the BUP. +
- +
-<code> +
-uint32t i; +
-i = ifo_zero->vmgi_mat->vmg_last_sector; +
-</code> +
- +
-** Last sector of IFO ** +
- +
-Current IFO?  Not sure... +
- +
-<code> +
-uint32t i; +
-i = ifo_zero->vmgi_mat->vmgi_last_sector; +
-</code> +
- +
-** Version number ** +
- +
-  * [[http://stnsoft.com/DVD/ifo.html#ver]] +
- +
-<code> +
-uint8t i; +
-i = ifo_zero->vmgi_mat->specification_version; +
-</code> +
- +
-** VMG category ** +
- +
-<code> +
-uint32_t i; +
-i = ifo_zero->vmgi_mat->vmg_category; +
-</code> +
- +
-** Number of volumes ** +
- +
-Not sure if I've seen this one yet, where it is positvely set (todo: search IFOs).  It's the number of volumes for an entire set of the DVDs that this one is a part of a collection. +
- +
-<code> +
-uint16_t i; +
-i = ifo_zero->vmgi_mat->vmg_nr_of_volumes +
-</code> +
- +
-** Volume number ** +
- +
-<code> +
-uint16_t i; +
-i = ifo_zero->vmgi_mat->vmg_this_volume_nr; +
-</code> +
- +
-** Disc side ** +
- +
-This should obviously be a 1 or a 2. +
- +
-<code> +
-uint8t i; +
-i = ifo_zero->vmgi_mat->disc_side; +
-</code> +
- +
-** Number of title sets ** +
- +
-Number of VTSs, aka IFOs.  **For debugging**, this number should match the actual amount of IFOs on a DVD. +
- +
-<code> +
-uint16_t i; +
-i = ifo_zero->vmgi_mat->vmg_nr_of_title_sets; +
-</code> +
- +
-** Provider ID ** +
- +
-Example: ''DEFENDERS_OF_THE_EARTH_V2D2A''.  Often blank.  32 characters not including a NULL terminator. +
- +
-<code> +
-char *id; +
-id = ifo_zero->vmgi_mat->provider_identifier; +
-</code> +
- +
-** VMG POS ** +
- +
-Dunno what this one is.  8-bytes. +
- +
-<code> +
-uint64_t i; +
-i = ifo_zero->vmgi_mat->vmg_pos_code; +
-</code> +
- +
-** Last byte of VMG IFO (IFO Zero) ** +
- +
-<code> +
-uint32_t i; +
-i = ifo_zero->vmgi_mat->vmgi_last_byte; +
-</code> +
- +
-** Start address of first PGC ** +
- +
-First Play program chain. +
- +
-  * [[http://stnsoft.com/DVD/pgc.html]] +
- +
-<code> +
-uint32_t i; +
-i = ifo_zero->vmgi_mat->first_play_pgc; +
-</code> +
- +
-** Start sector of menu VOB ** +
- +
-Dunno what this is yet. +
- +
-<code> +
-uint32_t i; +
-i = ifo_zero->vmgi_mat->vmgm_vobs; +
-</code> +
- +
-** Sector pointer to TT_SRPT, table of titles ** +
- +
-  * [[http://stnsoft.com/DVD/ifo_vmg.html#tt]] +
- +
-<code> +
-uint32_t i; +
-i = ifo_zero->vmgi_mat->tt_srpt; +
-</code> +
- +
-** Sector pointer to Menu Program Chain Table (VMGM_PGCI_UT) ** +
- +
-  * [[http://stnsoft.com/DVD/ifo_vmg.html#pgciut]] +
- +
-<code> +
-uint32_t i; +
-i = ifo_zero->vmgi_mat->vmgm_pgci_ut; +
-</code> +
- +
-** Sector pointer to Parental Management masks (VMG_PTL_MAIT) ** +
- +
-  * [[http://stnsoft.com/DVD/ifo_vmg.html#mait]] +
- +
-<code> +
-uint32_t i; +
-i = ifo_zero->vmgi_mat->ptl_mait; +
-</code> +
- +
-** Sector pointer to copies of VTS audio/sub-picture attributes (VMG_VTS_ATRT) ** +
- +
-  * [[http://stnsoft.com/DVD/ifo_vmg.html#atrt]] +
- +
-<code> +
-uint32_t i; +
-i = ifo_zero->vmgi_mat->vts_atrt; +
-</code> +
- +
-** Sector pointer to VMG_TXTDT_MG ** +
- +
-Text data.  No idea what this one is. +
- +
-<code> +
-uint32_t i; +
-i = ifo_zero->vmgi_mat->txtdt_mgi; +
-</code> +
- +
-** Sector pointer to menu cell address table (VMGM_C_ADT) ** +
- +
-  * [[http://stnsoft.com/DVD/ifo.html#c_adt]] +
- +
-<code> +
-uint32_t i; +
-i = ifo_zero->vmgi_mat->vmgm_c_adt; +
-</code> +
- +
-** Sector pointer to menu VOBU address map (VMGM_VOBU_ADMAP) ** +
- +
-  * [[http://stnsoft.com/DVD/ifo.html#vam]] +
- +
-<code> +
-uint32_t i; +
-i = ifo_zero->vmgi_mat->vmgm_vobu_admap; +
-</code> +
- +
-** Video attributes of menu VOBs (VMGM_VOBS) ** +
- +
-  * [[http://stnsoft.com/DVD/ifo.html#vidatt]] +
- +
-<code> +
-video_attr_t *a; +
-a = ifo_zero->vmgi_mat->vmgm_video_attr; +
-</code> +
- +
-** Number of audio streams in menu VOBs (VMGM_VOBS) ** +
- +
-Should be 0 or 1 (**debugging checks**). +
- +
-<code> +
-uint8_t i; +
-i = ifo_zero->vmgi_mat->nr_of_vmgm_audio_streams; +
-</code> +
- +
-** Audio attributes of menu VOBs (VMGM_VOBS) ** +
- +
-  * [[http://stnsoft.com/DVD/ifo.html#maudatt]] +
- +
-For //channels// the most common integer value (from my findings) is 0 or 1.  Need to find out if that means integer + 1 (so, 0 = mono, 1 = stereo) or what. +
- +
-<code> +
-audio_attr_t *a; +
-a = ifo_zero->vmgi_mat->vmgm_audio_attr; +
-</code> +
- +
-** Number of subpicture streams in menu VOBs (VMGM_VOBS) ** +
- +
-Should be 0 or 1 (**debugging checks**). +
- +
-<code> +
-uint8_t i; +
-i = ifo_zero->vmgi_mat->nr_of_vmgm_subp_streams; +
-</code> +
- +
-** Subpicture attributes of menu VOBs (VMGM_VOBS) ** +
- +
-<code> +
-subp_attr_t *a; +
-a = ifo_zero->vmgi_mat->vmgm_subp_attr; +
-</code>+

Trace: