static int dvd_seek_to_time(stream_t *stream, ifo_handle_t *vts_file, double sec) { unsigned int i, j, k, timeunit, ac_time, tmap_sector=0, cell_sector=0, vobu_sector=0; int t=0; double tm, duration; int64_t pos = -1; dvd_priv_t *d = stream->priv; vts_tmapt_t *vts_tmapt = vts_file->vts_tmapt; if(!vts_file->vts_tmapt || sec < 0) return 0; duration = (double) mp_get_titleset_length(d->vts_file, d->tt_srpt, d->cur_title) / 1000.0f; if(sec > duration) return 0; i=d->cur_pgc_idx; timeunit = vts_tmapt->tmap[i].tmu; for(j = 0; j < vts_tmapt->tmap[i].nr_of_entries; j++) { ac_time = timeunit * (j + 1); if(ac_time >= sec) break; tmap_sector = vts_tmapt->tmap[i].map_ent[j] & 0x7fffffff; } //search enclosing cell for(i=0; i<d->cur_pgc->nr_of_cells; i++) { if(tmap_sector >= d->cur_pgc->cell_playback[i].first_sector && tmap_sector <= d->cur_pgc->cell_playback[i].last_sector) { cell_sector = d->cur_pgc->cell_playback[i].first_sector; break; } } pos = ((int64_t)cell_sector)<<11; do_seek(stream, pos); do { char buf[2048]; if (dvd_read_sector(stream, stream->priv, buf) < 0) // skip break; t = mp_dvdtimetomsec(&d->dsi_pack.dsi_gi.c_eltm); } while(!t); tm = dvd_get_current_time(stream, -1); pos = ((int64_t)tmap_sector)<<11; do_seek(stream, pos); //now get current time in terms of the cell+cell time offset memset(&d->dsi_pack.dsi_gi.c_eltm, 0, sizeof(dvd_time_t)); while(tm <= sec) { char buf[2048]; if (dvd_read_sector(stream, stream->priv, buf) < 0) // skip break; pos += 2048; tm = dvd_get_current_time(stream, -1); }; tmap_sector = pos >> 11; //search closest VOBU sector k=(vts_file->vts_vobu_admap->last_byte + 1 - VOBU_ADMAP_SIZE)/4; //entries in the vobu admap for(i=1; i<k; i++) { if(vts_file->vts_vobu_admap->vobu_start_sectors[i] > tmap_sector) break; } vobu_sector = vts_file->vts_vobu_admap->vobu_start_sectors[i-1]; pos = ((int64_t)vobu_sector) << 11; do_seek(stream, pos); return 1; }
static int control(stream_t *stream,int cmd,void* arg) { dvd_priv_t *d = stream->priv; switch(cmd) { case STREAM_CTRL_GET_TIME_LENGTH: { *((double *)arg) = (double) mp_get_titleset_length(d->vts_file, d->tt_srpt, d->cur_title)/1000.0; return 1; } case STREAM_CTRL_GET_START_TIME: { *((double *)arg) = 0; return 1; } case STREAM_CTRL_GET_NUM_TITLES: { *((unsigned int *)arg) = d->vmg_file->tt_srpt->nr_of_srpts; return 1; } case STREAM_CTRL_GET_NUM_CHAPTERS: { int r; r = get_num_chapter(d->vts_file, d->tt_srpt, d->cur_title); if(! r) return STREAM_UNSUPPORTED; *((unsigned int *)arg) = r; return 1; } case STREAM_CTRL_GET_CHAPTER_TIME: { int r; r = get_chapter_time(d->vts_file, d->tt_srpt, d->cur_title, (double *)arg); if(! r) return STREAM_UNSUPPORTED; return 1; } case STREAM_CTRL_GET_CURRENT_TITLE: { *((unsigned int *)arg) = d->cur_title; return 1; } case STREAM_CTRL_GET_CURRENT_TIME: { double tm; tm = dvd_get_current_time(stream, -1); if(tm != -1) { *((double *)arg) = tm; return 1; } break; } case STREAM_CTRL_SEEK_TO_TIME: { if(dvd_seek_to_time(stream, d->vts_file, *((double*)arg))) return 1; break; } case STREAM_CTRL_GET_ASPECT_RATIO: { *((double *)arg) = !d->vts_file->vtsi_mat->vts_video_attr.display_aspect_ratio ? 4.0/3.0 : 16.0/9.0; return 1; } case STREAM_CTRL_GET_NUM_ANGLES: { *((int *)arg) = d->vmg_file->tt_srpt->title[d->dvd_title].nr_of_angles; return 1; } case STREAM_CTRL_GET_ANGLE: { *((int *)arg) = d->dvd_angle; return 1; } case STREAM_CTRL_SET_ANGLE: { int ang = *((int *)arg); if(ang>d->vmg_file->tt_srpt->title[d->dvd_title].nr_of_angles || ang<=0) break; d->dvd_angle = ang; d->angle_seek = 1; return 1; } case STREAM_CTRL_GET_LANG: { struct stream_lang_req *req = arg; int lang = 0; switch(req->type) { case STREAM_AUDIO: lang = dvd_lang_from_aid(stream, req->id); break; case STREAM_SUB: lang = dvd_lang_from_sid(stream, req->id); break; } if (!lang) break; snprintf(req->name, sizeof(req->name), "%c%c", lang >> 8, lang); return STREAM_OK; } case STREAM_CTRL_GET_DVD_INFO: { struct stream_dvd_info_req *req = arg; memset(req, 0, sizeof(*req)); req->num_subs = dvd_number_of_subs(stream); memcpy(req->palette, d->cur_pgc->palette, sizeof(req->palette)); return STREAM_OK; } case STREAM_CTRL_GET_DISC_NAME: { char buffer[128]; if (DVDUDFVolumeInfo(d->dvd, buffer, sizeof(buffer), NULL, 0) < 0 && DVDISOVolumeInfo(d->dvd, buffer, sizeof(buffer), NULL, 0) < 0) break; if (!buffer[0]) break; *(char**)arg = talloc_strdup(NULL, buffer); return STREAM_OK; } } return STREAM_UNSUPPORTED; }
static int control(stream_t *stream,int cmd,void* arg) { dvd_priv_t *d = stream->priv; switch(cmd) { case STREAM_CTRL_GET_TIME_LENGTH: { *((double *)arg) = (double) mp_get_titleset_length(d->vts_file, d->tt_srpt, d->cur_title-1)/1000.0; return 1; } case STREAM_CTRL_GET_NUM_CHAPTERS: { int r; r = get_num_chapter(d->vts_file, d->tt_srpt, d->cur_title-1); if(! r) return STREAM_UNSUPPORTED; *((unsigned int *)arg) = r; return 1; } case STREAM_CTRL_SEEK_TO_CHAPTER: { int r; r = seek_to_chapter(stream, d->vts_file, d->tt_srpt, d->cur_title-1, *((unsigned int *)arg)); if(! r) return STREAM_UNSUPPORTED; return 1; } case STREAM_CTRL_GET_CURRENT_CHAPTER: { *((unsigned int *)arg) = dvd_chapter_from_cell(d, d->cur_title-1, d->cur_cell); return 1; } case STREAM_CTRL_GET_CURRENT_TIME: { double tm; tm = dvd_get_current_time(stream, 0); if(tm != -1) { *((double *)arg) = tm; return 1; } break; } case STREAM_CTRL_SEEK_TO_TIME: { if(dvd_seek_to_time(stream, d->vts_file, *((double*)arg))) return 1; break; } case STREAM_CTRL_GET_ASPECT_RATIO: { *((double *)arg) = !d->vts_file->vtsi_mat->vts_video_attr.display_aspect_ratio ? 4.0/3.0 : 16.0/9.0; return 1; } case STREAM_CTRL_GET_NUM_ANGLES: { *((int *)arg) = d->vmg_file->tt_srpt->title[dvd_title].nr_of_angles; return 1; } case STREAM_CTRL_GET_ANGLE: { *((int *)arg) = dvd_angle+1; return 1; } case STREAM_CTRL_SET_ANGLE: { int ang = *((int *)arg); if(ang>d->vmg_file->tt_srpt->title[dvd_title].nr_of_angles || ang<=0) break; dvd_angle = ang - 1; d->angle_seek = 1; return 1; } } return STREAM_UNSUPPORTED; }