What OPTIONS_FFMPEG are supported by libav/ffmpeg?

[solarix]

It seems the only option that I can get to work is loglevel=debug or at least nothing I have tried can make any obvious difference in the image output of the camera. The test camera is running ffmpeg rtsp/unicast I have tried scaling, sharpen, blur etc. The option being set is logged in debug but the output of the video is not being affected.

Jerry

[linuxsense]

I started to use "allowed_media_types=video, bitrate=2048" for my cams a while ago, not sure if they are still supported, but they still work very well. If I remember correctly I was getting some odd errors without using the allowed_media_types set to 'video' and setting the cams to a fixed bitrate and defining it on the ZM side got rid of some occasionally corrupted images.

[snake]

I looked in the ffmpeg docs and I see allowed_media_types here:

https://www.ffmpeg.org/ffmpeg-all.html#rtsp

It seems like these rtsp flags should work. But I tried some other flags here such as stimeout which I got a response in ZM logs that ffmpeg didn't understand that option.

Maybe someone who knows zm_ffmpeg_camera.cpp can explain?

[mikb]

I believe that OPTIONS_FFMPEG setting on ZoneMinder are only for when re-coding a recorded event (stored as JPGs) to EXPORT for a video file, and are nothing to do with acquiring the stream from the camera. Therefore, no changes you make will affect the view/quality of what you are seeing to the output of the camera when viewed live, or viewed playback of an event.