For bringing RTSP video (which is relatively latency-insensitive) to web
browsers, I now believe that WebRTC (which is extremely complex, and has
portability problems) is not the best solution. Instead, HTTP-based streaming
mechanisms (such as MPEG DASH, or Apple’s “HTTP Live Streaming” (HLS)) seem to
be easier to implement and deploy.
I have installed a new version of the LIVE555 code that contains - in
“testProgs” - a new demo application:
testH264VideoToHLSSegments
This application converts an H.264 (Elementary Stream) video file - named
"in.264" - into a sequence of HLS ("HTTP Live Streaming") segments, plus a
".m3u8" file that can be accessed via a web browser.
To run this:
- Start with an H.264 Elementary Stream file named “in.264”. (E.g., an output
video file from “openRTSP’ could be used.)
- Then, run
testH264VideoToHLSSegments
This will generate a set of MPEG Transport Stream files, named
“hlsTest<n>.ts”, plus an index file named “hlsTest.m3u8”.
- Copy these files to a directory visible by a web server.
- Create an appropriate “http://“ URL - ending with “hlsTest.m3u8”, and enter
this into your web browser.
(The Safari browser (on Macs) will support “.m3u8” URLs. Other browsers may
need a plugin to support this.)
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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