Two languages in adaptation set

[David Gómez]

Hi all,

I try to create a Mpeg-Dash using a mp4 file, but when use this comand:

MP4Box -dash 10000 -rap -dash-profile dashavc264:live -bs-switching no -url-template -segment-timeline -segment-name seg_$Time$ original.mp4

and obtain the next log:

DASH-ing file: 10.00s segments 10.00s fragments single sidx per segment
Splitting segments at GOP boundaries
[DASH]: Muxed representations not allowed in DASH-IF AVC264 live profile
switching to regular live profile
[DASH] two languages in adaptation set: und will be kept eng will be ignored
DASHing file original.mp4
[DASH] Generating MPD at time 2015-05-26T11:18:05.721Z

The Mpd is generated but the program delet the audio Stream.

The map of the streams is

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'original.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2015-04-20 06:20:55
Duration: 00:03:05.48, start: 0.000000, bitrate: 1686 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 1492 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default)
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 191 kb/s (default)
Metadata:
creation_time : 2015-04-20 06:20:56
handler_name : IsoMedia File Produced by Google, 5-11-2011

How can generate the mpd correctly?

Thanks

[Romain Bouqueau]

You need to prepare your content before you feed mp4box with it. The following error messages from your log seem explicit:

[DASH]: Muxed representations not allowed in DASH-IF AVC264 live profile
switching to regular live profile

=> please provide unmuxed content or use the #audio/#video/#trackID/... options. See http://gpac.io/mp4box/dash/

[DASH] two languages in adaptation set: und will be kept eng will be ignored
DASHing file original.mp4

'Lang' is an adaptation set attribute.