static int dvdnav_stream_read(dvdnav_priv_t * priv, unsigned char *buf, int *len) {
int event = DVDNAV_NOP;
if (!len) return -1;
*len=-1;
if (!priv) return -1;
if (!buf) return -1;
if (dvd_nav_still) {
mp_msg(MSGT_OPEN,MSGL_V, "%s: got a stream_read while I should be asleep!\n",__FUNCTION__);
*len=0;
return -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);
//if (priv->started) dvd_nav_still=1;
//else
dvdnav_still_skip(priv->dvdnav); // don't let dvdnav stall on this image
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;
if(ev->pgc_length)
priv->duration = ev->pgc_length/90;
break;
}
case DVDNAV_SPU_CLUT_CHANGE: {
memcpy(priv->spu_clut, buf, 16*sizeof(unsigned int));
priv->spu_set = 1;
break;
}
case DVDNAV_WAIT:
dvdnav_wait_skip(priv->dvdnav);
break;
}
*len=0;
}
return event;
}
static int open_s(stream_t *stream,int mode, void* opts, int* file_format) {
struct stream_priv_s* p = (struct stream_priv_s*)opts;
char *filename;
dvdnav_priv_t *priv;
if(p->device) filename = p->device;
else if(dvd_device) filename= dvd_device;
else filename = DEFAULT_DVD_DEVICE;
if(!(priv=new_dvdnav_stream(filename))) {
mp_msg(MSGT_OPEN,MSGL_ERR,MSGTR_CantOpenDVD,filename, strerror(errno));
return STREAM_UNSUPPORTED;
}
if(p->track > 0) {
if(dvd_chapter > 0 && dvd_last_chapter > 0 && dvd_chapter > dvd_last_chapter) {
mp_msg(MSGT_OPEN,MSGL_FATAL,"dvdnav_stream, invalid chapter range: %d > %d\n", dvd_chapter, dvd_last_chapter);
return STREAM_UNSUPPORTED;
}
priv->title = p->track;
if(dvdnav_title_play(priv->dvdnav, p->track) != DVDNAV_STATUS_OK) {
mp_msg(MSGT_OPEN,MSGL_FATAL,"dvdnav_stream, couldn't select title %d, error '%s'\n", p->track, dvdnav_err_to_string(priv->dvdnav));
return STREAM_UNSUPPORTED;
}
if(dvd_chapter > 0)
dvdnav_part_play(priv->dvdnav, p->track, dvd_chapter);
} else if(p->track == -1)
dvdnav_menu_call(priv->dvdnav, DVD_MENU_Root);
else {
mp_msg(MSGT_OPEN,MSGL_INFO,"dvdnav_stream, you didn't specify a track number (as in dvdnav://1), playing whole disc\n");
dvdnav_menu_call(priv->dvdnav, DVD_MENU_Title);
}
if(mp_msg_test(MSGT_IDENTIFY, MSGL_INFO))
identify(priv, p);
if(dvd_angle > 1)
dvdnav_angle_change(priv->dvdnav, dvd_angle);
stream->sector_size = 2048;
stream->flags = STREAM_READ | STREAM_SEEK;
stream->fill_buffer = fill_buffer;
stream->seek = seek;
stream->control = control;
stream->close = stream_dvdnav_close;
stream->type = STREAMTYPE_DVDNAV;
stream->priv=(void*)priv;
*file_format = DEMUXER_TYPE_MPEG_PS;
update_title_len(stream);
if(!stream->pos)
mp_msg(MSGT_OPEN,MSGL_ERR, "INIT ERROR: couldn't get init pos %s\r\n", dvdnav_err_to_string(priv->dvdnav));
mp_msg(MSGT_OPEN,MSGL_INFO, "Remember to disable MPlayer's cache when playing dvdnav:// streams (adding -nocache to your command line)\r\n");
return STREAM_OK;
}
static int seek(stream_t *s, off_t newpos) {
uint32_t sector = 0;
dvdnav_priv_t *priv = s->priv;
if(s->end_pos && newpos > s->end_pos)
newpos = s->end_pos;
sector = newpos / 2048ULL;
if(dvdnav_sector_search(priv->dvdnav, (uint64_t) sector, SEEK_SET) != DVDNAV_STATUS_OK)
goto fail;
s->pos = newpos;
return 1;
fail:
mp_msg(MSGT_STREAM,MSGL_INFO,"dvdnav_stream, seeking to %"PRIu64" failed: %s\n", newpos, dvdnav_err_to_string(priv->dvdnav));
return 1;
}
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 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;
}
void k9PlayMPEG2::playTitle() {
dvdnav_t *dvdnav;
uint8_t mem[DVD_VIDEO_LB_LEN];
int finished = 0;
int32_t tt = 0,ptt=0;
uint32_t pos, lgr;
int title=m_title->getnumTitle();
/* open dvdnav handle */
if (dvdnav_open(&dvdnav, m_device,m_dvd) != DVDNAV_STATUS_OK) {
setError("ERR:Error on dvdnav_open\n");
return ;
}
/* set read ahead cache usage */
if (dvdnav_set_readahead_flag(dvdnav, DVD_READ_CACHE) != DVDNAV_STATUS_OK) {
setError(QString("ERR:Error on dvdnav_set_readahead_flag: %1\n").arg(dvdnav_err_to_string(dvdnav)));
return;
}
/* 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) {
setError(QString("ERR:Error on setting languages: %1\n").arg(dvdnav_err_to_string(dvdnav)));
return ;
}
/* 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) {
setError(QString("ERR:Error on dvdnav_set_PGC_positioning_flag: %1\n").arg(dvdnav_err_to_string(dvdnav)));
return ;
}
int32_t parts;
dvdnav_get_number_of_parts(dvdnav , title, &parts);
if (m_chapter==0)
dvdnav_title_play(dvdnav , title);
else
dvdnav_part_play(dvdnav , title,m_chapter);
/* the read loop which regularly calls dvdnav_get_next_block
* and handles the returned events */
while (!finished && !m_stopped && qApp!=NULL) {
int result, event, len;
uint8_t *buf = mem;
if (m_idxLect !=0xFFFFFFFF) {
dvdnav_sector_search(dvdnav, m_idxLect,SEEK_SET);
m_idxLect=0xFFFFFFFF;
}
/* the main reading function */
#ifdef 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) {
setError(QString("ERR:Error getting next block: %1\n").arg(dvdnav_err_to_string(dvdnav)));
return;
}
switch (event) {
case DVDNAV_NAV_PACKET:
{
dvdnav_current_title_info(dvdnav, &tt, &ptt);
dvdnav_get_position(dvdnav, &pos, &lgr);
if (tt != title)
finished=1;
if (finished==0 && buf[17]==0xE0) {
m_decoder.addData( buf,len);
}
if (qApp->tryLock()) {
emit setPosition( pos);
qApp->unlock();
}
}
break;
//removed break --> save
case DVDNAV_BLOCK_OK:
/* We have received a regular block of the currently playing MPEG stream.*/
m_decoder.addData( 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;
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. */
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;
}
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:
// dvdnav_get_position(dvdnav, &pos, &lgr);
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:
finished = 1;
break;
}
#ifdef DVD_READ_CACHE
dvdnav_free_cache_block(dvdnav, buf);
#endif
}
m_decoder.setNoData();
/* destroy dvdnav handle */
dvdnav_close(dvdnav);
}
