Get all the audios (languages) availables in a .m3u8 and subtitles?

[billyjoker]

Hi Brian, do you have any method to show all the available audio languages and subtitle texts in a .m3u8 file? I'd like to show a menu to the user which shows all the options available to select them.

Thanks!!

[brianwernick]

You should be able to call getAvailableTracks and grab the TrackGroupArray that's associated with RenderType.CLOSED_CAPTION. Then look at each of the TrackGroup's associated Format's to determine the metadata, etc. that you need.

[billyjoker]

Yes, i could debug and call to getAvailableTracks, but the info returned it is not what i waited. I mean, with the subtitles i have no information about language (it is filled with a null), so reading i do not see hte language of the available subtitle track when i get:

getAvailableTracks().get(ExoMedia.RendererType.CLOSED_CAPTION).get(0).getFormat(0)

[brianwernick]

Does the track info available in the media actually contain the language information?

[billyjoker]

Afirmative, this is the .m3u8 file:

.#EXTM3U
#EXT-X-VERSION:3
#EXT-X-STREAM-INF:BANDWIDTH=2298000,CODECS="avc1.100.40,mp4a.40.2",RESOLUTION=1920x1080,AUDIO="aac"
chunklist_b2298000_vo.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=1660000,CODECS="avc1.77.30,mp4a.40.2",RESOLUTION=1280x720,AUDIO="aac"
chunklist_b1660000_vo.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=894000,CODECS="avc1.77.30,mp4a.40.2",RESOLUTION=854x480,AUDIO="aac"
chunklist_b894000_vo.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=511000,CODECS="avc1.77.30,mp4a.40.2",RESOLUTION=640x360,AUDIO="aac"
chunklist_b511000_vo.m3u8
#EXT-X-STREAM-INF:BANDWIDTH=383000,CODECS="avc1.77.30,mp4a.40.2",RESOLUTION=426x240,AUDIO="aac"
chunklist_b383000_vo.m3u8
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="aac",LANGUAGE="es",NAME="Spanish",DEFAULT=YES,URI="chunklist_b128000_ao_sles_t64U3BhbmlzaA==.m3u8"
#EXT-X-MEDIA:TYPE=AUDIO,GROUP-ID="aac",LANGUAGE="en",NAME="English",DEFAULT=YES,URI="chunklist_b128000_ao_slen_t64RW5nbGlzaA==.m3u8"
#EXT-X-MEDIA:TYPE=SUBTITLES,GROUP-ID="subt",LANGUAGE="es",NAME="Spanish",DEFAULT=YES,URI="../es_subt.vtt"

[brianwernick]

Is the offset correct (see #541) in to the available tracks mapping? Looking at the ExoPlayer code it seems that it should correctly be grabbing the language, etc.

[brianwernick]

I'm going to assume it's related to #451 and close the issue