static void show_audio_subs_languages(dvdnav_t *nav)
{
uint8_t lg;
uint16_t i, lang, format, id, channels;
int base[7] = {128, 0, 0, 0, 160, 136, 0};
for(i=0; i<8; i++)
{
char tmp[] = "unknown";
lg = dvdnav_get_audio_logical_stream(nav, i);
if(lg == 0xff) continue;
channels = dvdnav_audio_stream_channels(nav, lg);
if(channels == 0xFFFF)
channels = 2; //unknown
else
channels--;
lang = dvdnav_audio_stream_to_lang(nav, lg);
if(lang != 0xFFFF)
{
tmp[0] = lang >> 8;
tmp[1] = lang & 0xFF;
tmp[2] = 0;
}
format = dvdnav_audio_stream_format(nav, lg);
if(format == 0xFFFF || format > 6)
format = 1; //unknown
id = i + base[format];
mp_msg(MSGT_OPEN,MSGL_STATUS,MSGTR_DVDaudioStreamInfo, i,
dvd_audio_stream_types[format], dvd_audio_stream_channels[channels], tmp, id);
if (lang != 0xFFFF && lang && tmp[0])
mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AID_%d_LANG=%s\n", id, tmp);
}
/**
* \brief dvdnav_aid_from_lang() returns the audio id corresponding to the language code 'lang'
* \param stream: - stream pointer
* \param lang: 2-characters language code[s], eventually separated by spaces of commas
* \return -1 on error, current subtitle id if successful
*/
int dvdnav_aid_from_lang(stream_t *stream, unsigned char *language) {
dvdnav_priv_t * priv=(dvdnav_priv_t*)stream->priv;
int k;
uint8_t format, lg;
uint16_t lang, lcode;;
while(language && strlen(language)>=2) {
lcode = (language[0] << 8) | (language[1]);
for(k=0; k<32; k++) {
lg = dvdnav_get_audio_logical_stream(priv->dvdnav, k);
if(lg == 0xff) continue;
lang = dvdnav_audio_stream_to_lang(priv->dvdnav, lg);
if(lang != 0xFFFF && lang == lcode) {
format = dvdnav_audio_stream_format(priv->dvdnav, lg);
switch(format) {
case DVDNAV_FORMAT_AC3:
return k+128;
case DVDNAV_FORMAT_DTS:
return k+136;
case DVDNAV_FORMAT_LPCM:
return k+160;
case DVDNAV_FORMAT_MPEGAUDIO:
return k;
default:
return -1;
}
}
}
language += 2;
while(language[0]==',' || language[0]==' ') ++language;
}
return -1;
}
/**
* \brief dvdnav_lang_from_aid() assigns to buf the language corresponding to audio id 'aid'
* \param stream: - stream pointer
* \param sid: physical subtitle id
* \param buf: buffer to contain the 2-chars language string
* \return 0 on error, 1 if successful
*/
int dvdnav_lang_from_aid(stream_t *stream, int aid, unsigned char *buf) {
uint8_t lg;
uint16_t lang;
dvdnav_priv_t * priv=(dvdnav_priv_t*)stream->priv;
if(aid < 0)
return 0;
lg = dvdnav_get_audio_logical_stream(priv->dvdnav, aid & 0x7);
if(lg == 0xff) return 0;
lang = dvdnav_audio_stream_to_lang(priv->dvdnav, lg);
if(lang == 0xffff) return 0;
buf[0] = lang >> 8;
buf[1] = lang & 0xFF;
buf[2] = 0;
return 1;
}