video handler holds only one decoder of the current codec format (#6939)

1. For example: when receiving h264 video frames, only 1 decoder is created, vram > ram
2. For creation and decoding failed:
  * Remove real_supported_decodings, this will update real existing decoders, replace it with the "mark_unsupported" vector. After creating the decoder failure, marks the codec as unsupported and updates supported decoding to the controlled side
  *  Add `fail_counter` in the decoder. When decoding 10 consecutive frames failed, adding codec type to 'mark_unsupported' vector
  *  The controlled end always ignores the unavailability of VP9

Signed-off-by: 21pages <pages21@163.com>

libs/scrap/src/common/mod.rs

@@ -251,7 +251,7 @@ pub enum CodecName {
     H265GPU,
 }
 
-#[derive(PartialEq, Debug, Clone)]
+#[derive(PartialEq, Debug, Clone, Copy)]
 pub enum CodecFormat {
     VP8,
     VP9,