For video conversion I use FFmpeg. Creation of HLS is possible with FFmpeg, but not really well documented. So I had to figure out how to create the video streams. After a lot of research and experimentation I created my FFmpeg HLS reference implementation that is available on Bitbucket.
On iOS the created video plays without problems on new devices. Older iOS devices with a maximum resolution of 480×320 pixels seem to select the best quality stream available, even if they cannot play it. For Android you have to create a MP4 video and before converting it into a MPEG stream. Doing this in a single command creates a choppy stream on Android. Flash playback has still some issues if you change the bitrate. So I still have some work to do.
These are the writings of Walter Ebert on web development, web design and free, open source software