Add JPEG quality adjustment via quality parameter

README.md

@@ -1203,6 +1203,7 @@ API examples:
   - You can use `width`/`w` and/or `height`/`h` params 
   - You can use `rotate` param with `90`, `180`, `270` or `-90` values
   - You can use `hardware`/`hw` param [read more](https://github.com/AlexxIT/go2rtc/wiki/Hardware-acceleration)
+  - You can use `quality` param to change jpeg quality (for example `1`)
 
 **PS.** This module also supports streaming to the server console (terminal) in the **animated ASCII art** format ([read more](https://github.com/AlexxIT/go2rtc/blob/master/internal/mjpeg/README.md)):
 

internal/ffmpeg/jpeg.go

@@ -45,7 +45,7 @@ func parseQuery(query url.Values) *ffmpeg.Args {
 
 	var width = -1
 	var height = -1
-	var r, hw string
+	var r, hw, quality string
 
 	for k, v := range query {
 		switch k {
@@ -57,6 +57,8 @@ func parseQuery(query url.Values) *ffmpeg.Args {
 			r = v[0]
 		case "hardware", "hw":
 			hw = v[0]
+		case "quality":
+			quality = v[0]
 		}
 	}
 
@@ -79,5 +81,9 @@ func parseQuery(query url.Values) *ffmpeg.Args {
 		hardware.MakeHardware(args, hw, defaults)
 	}
 
+	if quality != "" {
+		args.Codecs = append(args.Codecs, fmt.Sprintf("-q:v %s", quality))
+	}
+
 	return args
 }