Real Time Messaging Protocol
RTMP
Flash Streaming Server
Flash Streaming Server communicates
with its clients using the Adobe patented
RTMP over TCP,
which manages a two-way
connection,allowing the server to send
and receive,video,audio,and data
between client and server
Configuration of RTMP
RTMP-
Standard,unencrypted RTMP.
The default port is1935.
RTMPT- RTMP “tunneled”
over HTTP
The default port is 80
RTMPS- RTMP sent over an SSL. SSL enables secure
TCP/IP connections. The default port is 443
RTMPE- Enhanced and encrypted version of RTMP.
RTMPTE- Encrypts the communication channel,
tunneling over HTTP
Benefits of streaming
There are three methods for delivering video
over the Internet using Adobe Flash Player:
• Progressive download
• Streaming
Progressive download video delivery
progressive download has been supported
for video delivery.
This method allows developers to load
external video files into a Flash and play them
back during runtime.
When the video is played, the video file first
begins to download to the user’s hard drive,
then playback starts. The video begins to play
when enough
Streaming delivery
Streaming video, each client opens a persistent
connection to the streaming server,
and the server streams the video bits to the
client. Those bits are displayed by the viewer
and then immediately discarded
Why streaming is better
Progressive download is a simple method of
video delivery with very little control—it’s
basically a simple HTTP download call.
Streaming is a method that allows the publisher
to control every aspect of the video experience.
Why streaming is better
• Fast start—Streaming video is the fastest way to start
playing any video on the web.
• Advanced video control—Features such as bandwidth
detection, quality-of-service monitoring.
• Minimal use of client resources—Resources such as
memory and disk space are significantly
reduced with streaming, because the clients do not
need to download and store the entire file.
Why streaming is better
• Full seek and navigation—Users can seek to any point
in the video and have it start playing
immediately from that point.
• Live video—Streaming provides the ability to deliver
live video and audio from any connected
When to choose streaming
• Deliver files longer than 30 seconds or larger than
100Kbps
• Perform bandwidth detection, allowing you to deliver
the best quality video for the available hardware
• Monitor quality-of-service
• Perform real-time tracking
When to choose streaming
• Provide real-time data sharing and interactivity to your
video experiences
• Stream live video and audio
• Serve more streams with less bandwidth