What settings do I need to have to maintain as much quality when converting to FLV?

keep_quality => true
keep_video_size => true
deinterlace => true

Error while encoding the video in Flash video format: This video cannot be encoded in this format: flv does not support that sample rate, choose from (44100, 22050, 11025).

Yes, the keep_quality won’t work here if your raw video hasn’t one of these sample rate: 44100, 22050, 11025.

Okay…so then what can I do to maintain at least some decent quality? Right now the video quality gets so degraded/pixelated during encoding that it just plain looks bad.

You must increase the video bitrate, I’ll say minimum is 1000-1200kbps.

Is that something we do on the Hey!Watch end? Or are you saying anyone who uploads a video has to encode it themselves at a higher bitrate?

I’m basically wanting to know what I need to change with my code to get better video quality.

Yes, it’s on HeyWatch. You can do it by creating a format http://heywatch.com/format/new

Sorry for my ignorance here…but I still simply am not following anything you are hinting at doing.

Like I said, our users upload videos in dozens of different formats and bitrates and I just want to be able to maintain the quality of those videos once HeyWatch encodes them.

I still don’t understand what you are saying I’m supposed to do to maintain video quality during HeyWatch encoding.

Sorry to not be clear enough.

I suggested you to create a format with high video bitrate (1000-1200kbps), so your videos have good quality.

Use this new format to encode all your videos.