Audio not playing at on-the-fly segmented mp4 by AMS/Apache mod_hlshttp.so

[SebastianLukas]

Hi mangui and to all working and contributing to this cool project! ;)

Environment

• The stream has correct Access-Control-Allow-Origin headers (CORS)
• There are no network errors such as 404s in the browser console when trying to play the stream
• The issue observed is not already reported by searching on Github under https://github.com/dailymotion/hls.js/issues
  The issue could be related to Video streams, but no audio (mp4/aac) #61
• The issue occurs in the latest reference client on http://dailymotion.github.io/hls.js/demo and not just on my page
• Link to playable M3U8 file: http://stream.berufsberatung.ch/hls-streams/328.m3u8
  mp4 is on-the-fly segmented by AMS/Apache hls module. Plays well eg. on an old ipad1
• Hls.js version: v0.6.2-2
• Browser name/version: Firefox/47.0.1 Chrome 51
• OS name/version: Windows/10

Steps to reproduce

demo

Expected behavior

Audio playing correctly

Actual behavior

Video plays well;
Audio is mute if the HLS Stream comes out of an "on-the-fly" segmented mp4 by Adobe AMS mod_hlshttp.so

Strangely the audio plays just well if i first pre-package the my mp4/aac Video with the hlspackager tool Adobe ships with their Server.
Here demo
Apart the mp4 being prepackaged into ts chunks, the HLS stream is delivered the same way both cases (Apache 2.4 with mod_hlshttp.so )

i've analyzed, with "mpeg-2 ts packet analyzer", the kinds of fragments produced in the two approaches - "on-the-fly" ones and the "pre-packaged" ones - but the chunks seemed having both the same patterns: regular PAT at the beginning, video (PID 257) and audio packets (PID 258).

Another info: i captured 3 fragments from the on-the-fly fragmentation and wrote an m3u8 manifest, as it was a pre-packaged version. Video was fine but audio was not playing either.

The HLS stream served by AMS is generally supported on iOS and newer Android devices, natively. Is there any chance hls.js will also?
Thank you in advance!
seba

[mangui]

Hi @SebastianLukas audio PID was not signaled in the first parsed PMT (but in the second one)
I refined the TS demuxer logic to support this case.
plz recheck on demo page

[SebastianLukas]

Hi mangui, it works just smooth and fine!
Thank you very much