static int control(stream_t *stream, int cmd, void* arg) {
dvdnav_priv_t* priv=stream->priv;
int tit, part;
switch(cmd)
{
case STREAM_CTRL_SEEK_TO_CHAPTER:
{
int chap = *(unsigned int *)arg+1;
if(chap < 1 || dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
break;
if(dvdnav_part_play(priv->dvdnav, tit, chap) != DVDNAV_STATUS_OK)
break;
return 1;
}
case STREAM_CTRL_GET_NUM_CHAPTERS:
{
if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
break;
if(dvdnav_get_number_of_parts(priv->dvdnav, tit, &part) != DVDNAV_STATUS_OK)
break;
if(!part)
break;
*(unsigned int *)arg = part;
return 1;
}
case STREAM_CTRL_GET_CURRENT_CHAPTER:
{
if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
break;
*(unsigned int *)arg = part - 1;
return 1;
}
case STREAM_CTRL_GET_TIME_LENGTH:
{
if(priv->duration || priv->still_length)
{
*(double *)arg = (double)priv->duration / 1000.0;
return 1;
}
break;
}
case STREAM_CTRL_GET_ASPECT_RATIO:
{
uint8_t ar = dvdnav_get_video_aspect(priv->dvdnav);
*(double *)arg = !ar ? 4.0/3.0 : 16.0/9.0;
return 1;
}
case STREAM_CTRL_GET_CURRENT_TIME:
{
double tm;
tm = dvdnav_get_current_time(priv->dvdnav)/90000.0f;
if(tm != -1)
{
*(double *)arg = tm;
return 1;
}
break;
}
case STREAM_CTRL_SEEK_TO_TIME:
{
uint64_t tm = *(double *)arg * 90000;
if(dvdnav_time_search(priv->dvdnav, tm) == DVDNAV_STATUS_OK)
return 1;
break;
}
case STREAM_CTRL_GET_NUM_ANGLES:
{
uint32_t curr, angles;
if(dvdnav_get_angle_info(priv->dvdnav, &curr, &angles) != DVDNAV_STATUS_OK)
break;
*(int *)arg = angles;
return 1;
}
case STREAM_CTRL_GET_ANGLE:
{
uint32_t curr, angles;
if(dvdnav_get_angle_info(priv->dvdnav, &curr, &angles) != DVDNAV_STATUS_OK)
break;
*(int *)arg = curr;
return 1;
}
case STREAM_CTRL_SET_ANGLE:
{
uint32_t curr, angles;
int new_angle = *(int *)arg;
if(dvdnav_get_angle_info(priv->dvdnav, &curr, &angles) != DVDNAV_STATUS_OK)
break;
if(new_angle>angles || new_angle<1)
break;
if(dvdnav_angle_change(priv->dvdnav, new_angle) != DVDNAV_STATUS_OK)
return 1;
}
case STREAM_CTRL_GET_LANG:
{
struct stream_lang_req *req = arg;
int lang = 0;
switch(req->type) {
case stream_ctrl_audio:
lang = mp_dvdnav_lang_from_aid(stream, req->id);
break;
case stream_ctrl_sub:
lang = mp_dvdnav_lang_from_sid(stream, req->id);
break;
}
if (!lang)
break;
req->buf[0] = lang >> 8;
req->buf[1] = lang;
req->buf[2] = 0;
return STREAM_OK;
}
}
return STREAM_UNSUPPORTED;
}
static int control(stream_t *stream, int cmd, void* arg) {
dvdnav_priv_t* priv=stream->priv;
int tit, part;
switch(cmd)
{
case STREAM_CTRL_SEEK_TO_CHAPTER:
{
int chap = *((unsigned int *)arg)+1;
if(chap < 1 || dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
break;
if(dvdnav_part_play(priv->dvdnav, tit, chap) != DVDNAV_STATUS_OK)
break;
return 1;
}
case STREAM_CTRL_GET_NUM_CHAPTERS:
{
if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
break;
if(dvdnav_get_number_of_parts(priv->dvdnav, tit, &part) != DVDNAV_STATUS_OK)
break;
if(!part)
break;
*((unsigned int *)arg) = part;
return 1;
}
case STREAM_CTRL_GET_CURRENT_CHAPTER:
{
if(dvdnav_current_title_info(priv->dvdnav, &tit, &part) != DVDNAV_STATUS_OK)
break;
*((unsigned int *)arg) = part - 1;
return 1;
}
case STREAM_CTRL_GET_TIME_LENGTH:
{
if(priv->duration)
{
*((double *)arg) = (double)priv->duration / 1000.0;
return 1;
}
break;
}
case STREAM_CTRL_GET_ASPECT_RATIO:
{
uint8_t ar = dvdnav_get_video_aspect(priv->dvdnav);
*((double *)arg) = !ar ? 4.0/3.0 : 16.0/9.0;
return 1;
}
case STREAM_CTRL_GET_CURRENT_TIME:
{
double tm;
tm = dvdnav_get_current_time(priv->dvdnav)/90000.0f;
if(tm != -1)
{
*((double *)arg) = tm;
return 1;
}
break;
}
case STREAM_CTRL_SEEK_TO_TIME:
{
uint64_t tm = (uint64_t) (*((double*)arg) * 90000);
if(dvdnav_time_search(priv->dvdnav, tm) == DVDNAV_STATUS_OK)
return 1;
break;
}
}
return STREAM_UNSUPPORTED;
}
