Cannot get HLS/HTML5

[Massimiliano Ritossa]

Hi all,
i'm trying to re-streaming an a/v signal from an AXIS encoder. I setup the mistserver: run MistController, enabled all protocols (HTTP on port 80 and RTMP on port 1935) except TS.
I set a SOURCE in "Stream" with "push://mistserver-ip-address" and started ffmpeg in this way:

ffmpeg ffmpeg -i rtsp://source-ip-address -qmax 2 -r 25 -f flv rtmp://mistserver-ip-address/play/streamname

Testing at the link http://wiki.mistserver.com/index.php?title=StreamTester, Progressive, Dynamic and RTMP are ok, they're working, but Smooth (both of them, but i don't mind at all) and HLS doesn't.
Downloaded index.m3u8 file with wget and this is its content:

#EXTM3U
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-TARGETDURATION:30

Nothing else.

I also tried to setup TS protocol, but neither it works.
What i'm doing wrong?? Maybe i must also convert source streaming into a mpeg2 stream?
Please keep in mind it's a live streaming...
Thanks!

   MAx

[Jaron Vietor]

Hello Max,

ffmpeg will by default re-encode your video to VP6, which doesn't work over HLS or HSS.

Try adding the "-vcodec copy" option to your ffmpeg commandline (and optionally also "-acodec copy"), to make sure ffmpeg won't modify the encoded video and/or audio.

I'm assuming your encoder delivers the video in H264/AAC format, as that is the only codec combination that will enable HLS.

Regards,

Jaron

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[Massimiliano Ritossa]

You're right! Great!

By the way, I found that Progressive, Dynamic and RTMP are all synchronized, but HLS has a little delay. Is it normal??

And, i think it's a little bug: if i set HTTP protocol port "80", i cannot have a preview with the "embed" link. And links to both "embed info URL" and "embed embed URL" are blank pages. 

I'm using last version, 1.1.2 (libmist 5.1.2).

Thanks.

[Jaron Vietor]

Hello Max,

Yes. HLS requires at least ~10 seconds of buffer to function properly on most Apple devices. Unfortunately, this makes it impossible to not have a delay.

We plan to allow this buffering time to be changed manually in the future - but note that setting it to a lower value will most likely break compatibility with some devices.

Thanks for the bug report - I'll pass it on to the developer responsible so it can get fixed.

Regards,

Jaron