obs-ffmpeg: Readd OBS_ENCODER_CAP_DYN_BITRATE to AMF texture encoders

plugins/obs-ffmpeg/texture-amf.cpp

@@ -1506,7 +1506,8 @@ static void register_avc()
 	amf_encoder_info.get_defaults = amf_defaults;
 	amf_encoder_info.get_properties = amf_avc_properties;
 	amf_encoder_info.get_extra_data = amf_extra_data;
-	amf_encoder_info.caps = OBS_ENCODER_CAP_PASS_TEXTURE;
+	amf_encoder_info.caps = OBS_ENCODER_CAP_PASS_TEXTURE |
+				OBS_ENCODER_CAP_DYN_BITRATE;
 
 	obs_register_encoder(&amf_encoder_info);
 
@@ -1859,7 +1860,8 @@ static void register_hevc()
 	amf_encoder_info.get_defaults = amf_defaults;
 	amf_encoder_info.get_properties = amf_hevc_properties;
 	amf_encoder_info.get_extra_data = amf_extra_data;
-	amf_encoder_info.caps = OBS_ENCODER_CAP_PASS_TEXTURE;
+	amf_encoder_info.caps = OBS_ENCODER_CAP_PASS_TEXTURE |
+				OBS_ENCODER_CAP_DYN_BITRATE;
 
 	obs_register_encoder(&amf_encoder_info);
 
@@ -2184,7 +2186,8 @@ static void register_av1()
 	amf_encoder_info.get_defaults = amf_av1_defaults;
 	amf_encoder_info.get_properties = amf_av1_properties;
 	amf_encoder_info.get_extra_data = amf_extra_data;
-	amf_encoder_info.caps = OBS_ENCODER_CAP_PASS_TEXTURE;
+	amf_encoder_info.caps = OBS_ENCODER_CAP_PASS_TEXTURE |
+				OBS_ENCODER_CAP_DYN_BITRATE;
 
 	obs_register_encoder(&amf_encoder_info);