Possible to stream videos using Amazon S3/CloudFront with HTML5 player?
I want to use an HTML5 video player and stream videos. Is this possible with S3/CloudFront? I understand Amazon uses the RTMP streaming protocol and HTML5's video tag does not support RTMP. Is there any way to stream videos with HTML5 players?
Answer
Much of what @Wayne Koorts posted provides the basis for a good answer. The disconnect it seems is that you can "stream" video via progressive download. This works with any html5 compatible video file, as he illustrated.
In order to get the best performance in a progressive download of mp4 files, you need the moov atom meta data to appear at the beginning of the file. Insuring that your mp4 files have this property is one of the reasons that the qtfaststart program is included with ffmpeg.
Of course, progressive download is not a "streaming media server". Streaming media servers were designed to support a number of different features including:
- Security and DRM
- Adaptive streaming/interleaving (support for multiple bit rates interleaved into a specific file)
- Seeking
It seems the particular concern expressed here is the seeking feature. As it happens this is supported fine in html5 and by s3/cloudfront.
What is confusing is that cloudfront of video files has several options. One option is to have the files delivered by their network of licensed Adobe FMS servers. This is where the confusion about the use of RTMP comes into play. However, that is only an option. Files can be distributed to cloudfront in standard "download" form and they will have the seeking property due to the implementation of byte ranges and support for what is popularly known as pseudo streaming.
There seems to be a lot of confusion about the term "Pseudo streaming" but in the case of html5, it's simply the requirement that the HTTP server supports the 1.1 specification. When seeking, the client sends a byte range request and the server is responsible for delivering that portion of the file.
In other words... seeking with the html5 player does work with the cloudfront servers because they are HTTP 1.1 compatible.
As for some of the other functions that streaming servers provide, there are a variety of competitive servers that have implemented "H264 streaming" or elements of MPEG-DASH as an alternative to the use of RTMP and FMS compatible servers. A number of flash based players support these functions, which go above and beyond simple seeking. The JWPlayer and Flowplayer are 2 examples of players that support some or all of the features, however HTML5's video player has no support for any of these features. You can learn more looking at http://h264.code-shop.com/trac#H264StreamingModuleIntroductionversion2
If that's not enough confusion for you, Apple implemented their own "HTTP Live Streaming" protocol, sometimes known as m3u8, which they support in ios and quicktime. I mention this because frequently people want a way to support a variety of different devices.
I hope this helped clarify things a bit.