mpeg ts with no audio is truncated

Hi @mangui

I have an m3u8 with 2 videos
The first video has no audio channel, only video channel
The second video has both audio and video channels
When playing the m3u8, the first video doesn't play till the end. It's truncated after ~2s
Steps to reproduce the issue:
- go to http://flashls.org/flashls-0.4.1.0/examples/chromeless/
- use the url http://178.32.35.150/v/v.m3u8
- press load, it plays the video correctly
- then press play => the first video is truncated

Thanks for your help!

Reproduce the issue using the chromeless example at http://flashls.org/flashls-0.4.1.0/examples/chromeless/ and the m3u8 URL provided in the report. Compare playback of the first video-only item with the following audio-and-video item. Done means the first video plays through to its end instead of being truncated after about two seconds.

Written by the indexing model from the issue text.