Jerkyness observed when live video encoded on FMLE

Question

Hi All,
I am trying to encode live stream using FMLE 3.2 on mac mini.
Input is of 1.5mbps with 640x480. It is coming throgh canopus and firewire to mac mini.
I have set my bitrates to
1. 800kbps H264 main @3.1 resolution 640x480
2. 500kbps H264 main @3.1 resolution 480x360
3. 300kbps H264 main @3.1 resolution 320x240
My FMS parameters are,  FMS URL:rtmp://localhost/live  , streamname : livestream%i
The live video encodes fine when i have only 1 stream encoding. But jerkyness observed when i have 3 bitrates enabled on encoder. What could be the issue?
I thought i can use FMLE to adaptive streaming.
I will be using 3 different streams for pc and mobile. Please let me know if i have any issues on the encoder side
Any pointers would be useful.
Thanks.

Answer 1

For VP6 MBR:
640x480 size or below; 2 or 3 streams at 25 fps: Dual Core (Core 2 Duo 3GHz, 2GB RAM)
768x576 size; 3 streams at 25 fps: 8 Core (Xeon 3GHz, 3.25 GB RAM)
Input stream 640x480 @25 fps; 3 output streams: 76x144 @25 fps_150 kbps , 320x240 @25 fps_300 kbps and 640x480 @25 fps_700 kbps: Dual Core 3GHz, 2GB RAM
For H264 MBR:
320x240 size ( Main or base profile); 3 streams at 25 fps: Quad Core Xeon 2GHz, 4GB RAM.
640x480 size ( Main or base profile); 2 streams at 25 fps: 8 core Xeon 3GHz, 3.25 GB RAM.
768x576 size ( Main or base profile); 2 streams at 25 fps: 8 core Xeon 3GHz, 3.25 GB RAM.