void mp_dvdnav_update_mouse_pos(stream_t *stream, int32_t x, int32_t y, int* button) {
dvdnav_priv_t * priv=(dvdnav_priv_t*)stream->priv;
dvdnav_t *nav = priv->dvdnav;
dvdnav_status_t status;
pci_t *pci = dvdnav_get_current_nav_pci(nav);
if(!pci) return;
status = dvdnav_mouse_select(nav, pci, x, y);
if(status == DVDNAV_STATUS_OK) dvdnav_get_current_highlight(nav, button);
else *button = -1;
priv->mousex = x;
priv->mousey = y;
}
static void dvdnav_get_highlight (dvdnav_priv_t *priv, int display_mode) {
pci_t *pnavpci = NULL;
dvdnav_highlight_event_t *hlev = &(priv->hlev);
int btnum;
if (!priv || !priv->dvdnav)
return;
pnavpci = dvdnav_get_current_nav_pci (priv->dvdnav);
if (!pnavpci)
return;
dvdnav_get_current_highlight (priv->dvdnav, &(hlev->buttonN));
hlev->display = display_mode; /* show */
#ifdef GEKKO
// always hide button highlight
hlev->sx = hlev->ex = 0;
hlev->sy = hlev->ey = 0;
hlev->palette = hlev->buttonN = 0;
#else
if (hlev->buttonN > 0 && pnavpci->hli.hl_gi.btn_ns > 0 && hlev->display) {
for (btnum = 0; btnum < pnavpci->hli.hl_gi.btn_ns; btnum++) {
btni_t *btni = &(pnavpci->hli.btnit[btnum]);
if (hlev->buttonN == btnum + 1) {
hlev->sx = FFMIN (btni->x_start, btni->x_end);
hlev->ex = FFMAX (btni->x_start, btni->x_end);
hlev->sy = FFMIN (btni->y_start, btni->y_end);
hlev->ey = FFMAX (btni->y_start, btni->y_end);
hlev->palette = (btni->btn_coln == 0) ? 0 :
pnavpci->hli.btn_colit.btn_coli[btni->btn_coln - 1][0];
break;
}
}
} else { /* hide button or no button */
hlev->sx = hlev->ex = 0;
hlev->sy = hlev->ey = 0;
hlev->palette = hlev->buttonN = 0;
}
#endif
}
static int dvdnav_stream_read(dvdnav_priv_t * priv, unsigned char *buf, int *len) {
int event = DVDNAV_NOP;
*len=-1;
if (dvdnav_get_next_block(priv->dvdnav,buf,&event,len)!=DVDNAV_STATUS_OK) {
mp_msg(MSGT_OPEN,MSGL_V, "Error getting next block from DVD %d (%s)\n",event, dvdnav_err_to_string(priv->dvdnav) );
*len=-1;
}
else if (event!=DVDNAV_BLOCK_OK) {
// need to handle certain events internally (like skipping stills)
switch (event) {
case DVDNAV_NAV_PACKET:
return event;
case DVDNAV_STILL_FRAME: {
dvdnav_still_event_t *still_event = (dvdnav_still_event_t *) buf;
priv->still_length = still_event->length;
/* set still frame duration */
priv->duration = dvdnav_get_duration (priv->still_length);
if (priv->still_length <= 1) {
pci_t *pnavpci = dvdnav_get_current_nav_pci (priv->dvdnav);
priv->duration = mp_dvdtimetomsec (&pnavpci->pci_gi.e_eltm);
}
break;
}
case DVDNAV_HIGHLIGHT: {
dvdnav_get_highlight (priv, 1);
break;
}
case DVDNAV_CELL_CHANGE: {
dvdnav_cell_change_event_t *ev = (dvdnav_cell_change_event_t*)buf;
uint32_t nextstill;
priv->state &= ~NAV_FLAG_WAIT_SKIP;
priv->state |= NAV_FLAG_STREAM_CHANGE;
if(ev->pgc_length)
priv->duration = ev->pgc_length/90;
if (dvdnav_is_domain_vts(priv->dvdnav)) {
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "DVDNAV_TITLE_IS_MOVIE\n");
priv->state &= ~NAV_FLAG_VTS_DOMAIN;
} else {
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "DVDNAV_TITLE_IS_MENU\n");
priv->state |= NAV_FLAG_VTS_DOMAIN;
}
nextstill = dvdnav_get_next_still_flag (priv->dvdnav);
if (nextstill) {
priv->duration = dvdnav_get_duration (nextstill);
priv->still_length = nextstill;
if (priv->still_length <= 1) {
pci_t *pnavpci = dvdnav_get_current_nav_pci (priv->dvdnav);
priv->duration = mp_dvdtimetomsec (&pnavpci->pci_gi.e_eltm);
}
}
break;
}
case DVDNAV_SPU_CLUT_CHANGE: {
memcpy(priv->spu_clut, buf, 16*sizeof(unsigned int));
priv->state |= NAV_FLAG_SPU_SET;
break;
}
case DVDNAV_WAIT: {
if ((priv->state & NAV_FLAG_WAIT_SKIP) &&
!(priv->state & NAV_FLAG_WAIT))
dvdnav_wait_skip (priv->dvdnav);
else
priv->state |= NAV_FLAG_WAIT;
break;
}
case DVDNAV_VTS_CHANGE: {
priv->state &= ~NAV_FLAG_WAIT_SKIP;
priv->state |= NAV_FLAG_STREAM_CHANGE;
break;
}
case DVDNAV_SPU_STREAM_CHANGE: {
priv->state |= NAV_FLAG_STREAM_CHANGE;
break;
}
}
*len=0;
}
return event;
}
int mp_dvdnav_handle_input(stream_t *stream, int cmd, int *button) {
dvdnav_priv_t * priv=(dvdnav_priv_t*)stream->priv;
dvdnav_t *nav = priv->dvdnav;
dvdnav_status_t status=DVDNAV_STATUS_ERR;
pci_t *pci = dvdnav_get_current_nav_pci(nav);
int reset = 0;
if(cmd != MP_CMD_DVDNAV_SELECT && !pci)
return 0;
switch(cmd) {
case MP_CMD_DVDNAV_UP:
status = dvdnav_upper_button_select(nav, pci);
break;
case MP_CMD_DVDNAV_DOWN:
status = dvdnav_lower_button_select(nav, pci);
break;
case MP_CMD_DVDNAV_LEFT:
status = dvdnav_left_button_select(nav, pci);
break;
case MP_CMD_DVDNAV_RIGHT:
status = dvdnav_right_button_select(nav, pci);
break;
case MP_CMD_DVDNAV_MENU:
status = dvdnav_menu_call(nav,DVD_MENU_Root);
reset = 1;
break;
case MP_CMD_DVDNAV_PREVMENU: {
int title=0, part=0;
dvdnav_current_title_info(nav, &title, &part);
if(title) {
if(dvdnav_menu_call(nav, DVD_MENU_Part) == DVDNAV_STATUS_OK
|| dvdnav_menu_call(nav, DVD_MENU_Title) == DVDNAV_STATUS_OK) {
reset = 1;
break;
}
}
if(dvdnav_menu_call(nav, DVD_MENU_Root) == DVDNAV_STATUS_OK)
reset = 1;
}
break;
case MP_CMD_DVDNAV_SELECT:
status = dvdnav_button_activate(nav, pci);
if(status == DVDNAV_STATUS_OK) reset = 1;
break;
case MP_CMD_DVDNAV_MOUSECLICK:
/*
this is a workaround: in theory the simple dvdnav_lower_button_select()+dvdnav_button_activate()
should be enough (and generally it is), but there are cases when the calls to dvdnav_lower_button_select()
and friends fail! Hence we have to call dvdnav_mouse_activate(priv->mousex, priv->mousey) with
the coodinates saved by mp_dvdnav_update_mouse_pos().
This last call always works well
*/
status = dvdnav_mouse_activate(nav, pci, priv->mousex, priv->mousey);
if(status == DVDNAV_STATUS_OK) reset = 1;
break;
default:
mp_msg(MSGT_CPLAYER, MSGL_V, "Unknown DVDNAV cmd %d\n", cmd);
break;
}
if(status == DVDNAV_STATUS_OK)
dvdnav_get_current_highlight(nav, button);
return reset;
}
int main(int argc, char **argv) {
dvdnav_t *dvdnav;
uint8_t mem[DVD_VIDEO_LB_LEN];
int finished = 0;
int output_fd = 0;
int dump = 0, tt_dump = 0;
/* open dvdnav handle */
printf("Opening DVD...\n");
if (dvdnav_open(&dvdnav, "/dev/dvd") != DVDNAV_STATUS_OK) {
printf("Error on dvdnav_open\n");
return 1;
}
/* set read ahead cache usage */
if (dvdnav_set_readahead_flag(dvdnav, DVD_READ_CACHE) != DVDNAV_STATUS_OK) {
printf("Error on dvdnav_set_readahead_flag: %s\n", dvdnav_err_to_string(dvdnav));
return 2;
}
/* set the language */
if (dvdnav_menu_language_select(dvdnav, DVD_LANGUAGE) != DVDNAV_STATUS_OK ||
dvdnav_audio_language_select(dvdnav, DVD_LANGUAGE) != DVDNAV_STATUS_OK ||
dvdnav_spu_language_select(dvdnav, DVD_LANGUAGE) != DVDNAV_STATUS_OK) {
printf("Error on setting languages: %s\n", dvdnav_err_to_string(dvdnav));
return 2;
}
/* set the PGC positioning flag to have position information relatively to the
* whole feature instead of just relatively to the current chapter */
if (dvdnav_set_PGC_positioning_flag(dvdnav, 1) != DVDNAV_STATUS_OK) {
printf("Error on dvdnav_set_PGC_positioning_flag: %s\n", dvdnav_err_to_string(dvdnav));
return 2;
}
/* the read loop which regularly calls dvdnav_get_next_block
* and handles the returned events */
printf("Reading...\n");
while (!finished) {
int result, event, len;
uint8_t *buf = mem;
/* the main reading function */
#if DVD_READ_CACHE
result = dvdnav_get_next_cache_block(dvdnav, &buf, &event, &len);
#else
result = dvdnav_get_next_block(dvdnav, buf, &event, &len);
#endif
if (result == DVDNAV_STATUS_ERR) {
printf("Error getting next block: %s\n", dvdnav_err_to_string(dvdnav));
return 3;
}
switch (event) {
case DVDNAV_BLOCK_OK:
/* We have received a regular block of the currently playing MPEG stream.
* A real player application would now pass this block through demuxing
* and decoding. We simply write it to disc here. */
if (!output_fd) {
printf("Opening output...\n");
output_fd = open("libdvdnav.mpg", O_CREAT | O_WRONLY, S_IRWXU | S_IRWXG);
if (output_fd == -1) {
printf("Error opening output\n");
return 4;
}
}
if (dump || tt_dump)
write(output_fd, buf, len);
break;
case DVDNAV_NOP:
/* Nothing to do here. */
break;
case DVDNAV_STILL_FRAME:
/* We have reached a still frame. A real player application would wait
* the amount of time specified by the still's length while still handling
* user input to make menus and other interactive stills work.
* A length of 0xff means an indefinite still which has to be skipped
* indirectly by some user interaction. */
{
dvdnav_still_event_t *still_event = (dvdnav_still_event_t *)buf;
if (still_event->length < 0xff)
printf("Skipping %d seconds of still frame\n", still_event->length);
else
printf("Skipping indefinite length still frame\n");
dvdnav_still_skip(dvdnav);
}
break;
case DVDNAV_WAIT:
/* We have reached a point in DVD playback, where timing is critical.
* Player application with internal fifos can introduce state
* inconsistencies, because libdvdnav is always the fifo's length
* ahead in the stream compared to what the application sees.
* Such applications should wait until their fifos are empty
* when they receive this type of event. */
printf("Skipping wait condition\n");
dvdnav_wait_skip(dvdnav);
break;
case DVDNAV_SPU_CLUT_CHANGE:
/* Player applications should pass the new colour lookup table to their
* SPU decoder */
break;
case DVDNAV_SPU_STREAM_CHANGE:
/* Player applications should inform their SPU decoder to switch channels */
break;
case DVDNAV_AUDIO_STREAM_CHANGE:
/* Player applications should inform their audio decoder to switch channels */
break;
case DVDNAV_HIGHLIGHT:
/* Player applications should inform their overlay engine to highlight the
* given button */
{
dvdnav_highlight_event_t *highlight_event = (dvdnav_highlight_event_t *)buf;
printf("Selected button %d\n", highlight_event->buttonN);
}
break;
case DVDNAV_VTS_CHANGE:
/* Some status information like video aspect and video scale permissions do
* not change inside a VTS. Therefore this event can be used to query such
* information only when necessary and update the decoding/displaying
* accordingly. */
break;
case DVDNAV_CELL_CHANGE:
/* Some status information like the current Title and Part numbers do not
* change inside a cell. Therefore this event can be used to query such
* information only when necessary and update the decoding/displaying
* accordingly. */
{
int tt = 0, ptt = 0, pos, len;
char input = '\0';
dvdnav_current_title_info(dvdnav, &tt, &ptt);
dvdnav_get_position(dvdnav, &pos, &len);
printf("Cell change: Title %d, Chapter %d\n", tt, ptt);
printf("At position %.0f%% inside the feature\n", 100 * (double)pos / (double)len);
dump = 0;
if (tt_dump && tt != tt_dump)
tt_dump = 0;
if (!dump && !tt_dump) {
fflush(stdin);
while ((input != 'a') && (input != 's') && (input != 'q') && (input != 't')) {
printf("(a)ppend cell to output\n(s)kip cell\nappend until end of (t)itle\n(q)uit\n");
scanf("%c", &input);
}
switch (input) {
case 'a':
dump = 1;
break;
case 't':
tt_dump = tt;
break;
case 'q':
finished = 1;
}
}
}
break;
case DVDNAV_NAV_PACKET:
/* A NAV packet provides PTS discontinuity information, angle linking information and
* button definitions for DVD menus. Angles are handled completely inside libdvdnav.
* For the menus to work, the NAV packet information has to be passed to the overlay
* engine of the player so that it knows the dimensions of the button areas. */
{
pci_t *pci;
dsi_t *dsi;
/* Applications with fifos should not use these functions to retrieve NAV packets,
* they should implement their own NAV handling, because the packet you get from these
* functions will already be ahead in the stream which can cause state inconsistencies.
* Applications with fifos should therefore pass the NAV packet through the fifo
* and decoding pipeline just like any other data. */
pci = dvdnav_get_current_nav_pci(dvdnav);
dsi = dvdnav_get_current_nav_dsi(dvdnav);
if(pci->hli.hl_gi.btn_ns > 0) {
int button;
printf("Found %i DVD menu buttons...\n", pci->hli.hl_gi.btn_ns);
for (button = 0; button < pci->hli.hl_gi.btn_ns; button++) {
btni_t *btni = &(pci->hli.btnit[button]);
printf("Button %i top-left @ (%i,%i), bottom-right @ (%i,%i)\n",
button + 1, btni->x_start, btni->y_start,
btni->x_end, btni->y_end);
}
button = 0;
while ((button <= 0) || (button > pci->hli.hl_gi.btn_ns)) {
printf("Which button (1 to %i): ", pci->hli.hl_gi.btn_ns);
scanf("%i", &button);
}
printf("Selecting button %i...\n", button);
/* This is the point where applications with fifos have to hand in a NAV packet
* which has traveled through the fifos. See the notes above. */
dvdnav_button_select_and_activate(dvdnav, pci, button);
}
}
break;
case DVDNAV_HOP_CHANNEL:
/* This event is issued whenever a non-seamless operation has been executed.
* Applications with fifos should drop the fifos content to speed up responsiveness. */
break;
case DVDNAV_STOP:
/* Playback should end here. */
{
finished = 1;
}
break;
default:
printf("Unknown event (%i)\n", event);
finished = 1;
break;
}
#if DVD_READ_CACHE
dvdnav_free_cache_block(dvdnav, buf);
#endif
}
/* destroy dvdnav handle */
if (dvdnav_close(dvdnav) != DVDNAV_STATUS_OK) {
printf("Error on dvdnav_close: %s\n", dvdnav_err_to_string(dvdnav));
return 5;
}
close(output_fd);
return 0;
}
