Jean-Baptiste Kempf pushed to branch master at VideoLAN / libdvdnav
Commits:
8d1e595a by Miguel Borges de Freitas at 2022-03-06T18:48:27+00:00
add dvdnav_get_number_of_streams
Allows to obtain the stream count provided its type (subtitles, audio)
for vts titles and dvdmenus
- - - - -
3 changed files:
- src/dvdnav.c
- src/dvdnav/dvd_types.h
- src/dvdnav/dvdnav.h
Changes:
=====================================
src/dvdnav.c
=====================================
@@ -1111,6 +1111,54 @@ int8_t dvdnav_get_audio_logical_stream(dvdnav_t *this, uint8_t audio_num) {
return retval;
}
+int8_t dvdnav_get_number_of_streams(dvdnav_t *this, dvdnav_stream_type_t stream_type) {
+
+ if (stream_type != DVD_SUBTITLE_STREAM && stream_type != DVD_AUDIO_STREAM) {
+ printerr("Invalid provided stream type");
+ return -1;
+ }
+
+ if (!this->started) {
+ printerr("Virtual DVD machine not started.");
+ return -1;
+ }
+
+ pthread_mutex_lock(&this->vm_lock);
+ if (!this->vm->state.pgc) {
+ printerr("No current PGC.");
+ pthread_mutex_unlock(&this->vm_lock);
+ return -1;
+ }
+
+ if (this->vm->state.domain != DVD_DOMAIN_VTSTitle &&
+ this->vm->state.domain != DVD_DOMAIN_VTSMenu)
+ {
+ printerr("Invalid domain provided");
+ pthread_mutex_unlock(&this->vm_lock);
+ return -1;
+ }
+
+ int8_t count = 0;
+ switch (stream_type) {
+ case DVD_SUBTITLE_STREAM:
+ for (int i = 0; i < 32; i++)
+ {
+ if (this->vm->state.pgc->subp_control[i] & (1<<31))
+ count++;
+ }
+ break;
+ case DVD_AUDIO_STREAM:
+ for (int i = 0; i < 8; i++)
+ {
+ if (this->vm->state.pgc->audio_control[i] & (1<<15))
+ count++;
+ }
+ break;
+ }
+ pthread_mutex_unlock(&this->vm_lock);
+ return count;
+}
+
dvdnav_status_t dvdnav_get_audio_attr(dvdnav_t *this, uint8_t audio_num, audio_attr_t *audio_attr) {
if(!this->started) {
printerr("Virtual DVD machine not started.");
=====================================
src/dvdnav/dvd_types.h
=====================================
@@ -44,6 +44,15 @@ typedef enum {
DVD_MENU_Part = 7
} DVDMenuID_t;
+/*
+ * Stream Types
+ * (see dvdnav_get_number_of_streams())
+ */
+typedef enum {
+ DVD_SUBTITLE_STREAM = 0,
+ DVD_AUDIO_STREAM = 1
+} dvdnav_stream_type_t;
+
/* Domain */
typedef enum {
DVD_DOMAIN_FirstPlay = 1, /* First Play Domain */
=====================================
src/dvdnav/dvdnav.h
=====================================
@@ -673,6 +673,11 @@ int8_t dvdnav_get_active_spu_stream(dvdnav_t *self);
*/
user_ops_t dvdnav_get_restrictions(dvdnav_t *self);
+/*
+ * Returns the number of streams provided its type (e.g. subtitles, audio, etc)
+ */
+int8_t dvdnav_get_number_of_streams(dvdnav_t *self, dvdnav_stream_type_t stream_type);
+
/*********************************************************************
* multiple angles *
View it on GitLab: https://code.videolan.org/videolan/libdvdnav/-/commit/8d1e595aa39e15fda408c83de9539658944ef42d
--
View it on GitLab: https://code.videolan.org/videolan/libdvdnav/-/commit/8d1e595aa39e15fda408c83de9539658944ef42d
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