These posts are in reference to specific best practices for a web-based Flash encoder workflow. Certianly not a general, "official" stance. Wowza is extremely robust with capability of handling very large, high bitrate streams.
What are you working to accomplish? Do you have a particular specification that you are looking to achieve?
Just to close this matter, can you please confirm that if publishing using a flash encoder,
Wowza advises 320x240 as a maximum frame size?
If this is the case it gives me a clearer indication into what transcoding options are available, I want to avoid degrading quality by scaling content up using the transcoder (which removes most available options it would appear based on framesize adjustment).
Wowza does NOT recommend a maximum frame size of 320x240, the resolution should vary depending on bitrate of the stream.
Try publishing a stream at 1.3 Mbps which is 1280x720 and you will see this plays fine if the viewing client has the sufficient bandwidth to play the stream.
Thank you so much for confirming this Jason and I am sorry I pushed for confirmation here. I needed to make 100% sure that previous posts from Wowza support (salvadore & rrlanham) that stated a specific frame size of 320x240 as a maximum for web based application publishing of streams, was indeed incorrect.
I will ignore these previous posts now and happily use larger frame sizes in our web based flash application safe in the knowledge that the Wowza encoder will easily support them (based on bandwidth).
The encoding process is using lots of HW resources, especially CPU. In this particular case, I think the issue is the encoding capacity of the web based Flash encoder, rather that the Wowza capacity to ingest a certain video size.
If you try to encode a large frame size with a high bitrate using the Flash web based encoder, you might see that the web client does not have enough HW resources available to deliver the desired output. The statement of using a maximum frame size of 320x240 for the web based Flash encoder, that Wowza support "salvadore" and "rrlanham" were mentioning, was a result of several tests performed using the web based Flash encoder (also used in the
VideoChat flash example application). It was observed that going above that video size would cause the encoder to struggle in order to keep up with the desired output.
Fantastic, thank you for clarifying all of that for me. It was the statement made on the post
here that I based my original question on as it stated the
wowza encoder itself was limited: QUOTE:
I would shy away from anything larger than frame size 320x240. The encoder built-in to Wowza is limited.