Improve playback, preroll and TV experience

server/internal/emby/client_playback_test.go

@@ -32,3 +32,23 @@ func TestAndroidTVProfileConstrainsCodecLevelAndResolution(t *testing.T) {
 		t.Fatalf("codec profiles = %#v", codecProfiles)
 	}
 }
+
+func TestForcedTranscodeProfileCannotStreamCopyHEVC(t *testing.T) {
+	profile := androidTVDeviceProfile(PlaybackCapabilities{
+		HEVC: true, HEVCMain: true, HEVCMain10: true,
+	})
+	forceH264TranscodeProfile(profile)
+
+	if direct := profile["DirectPlayProfiles"].([]map[string]string); len(direct) != 0 {
+		t.Fatalf("direct profiles = %#v", direct)
+	}
+	transcode := profile["TranscodingProfiles"].([]map[string]string)
+	if len(transcode) != 1 || transcode[0]["VideoCodec"] != "h264" {
+		t.Fatalf("transcoding profiles = %#v", transcode)
+	}
+	for _, codecProfile := range profile["CodecProfiles"].([]map[string]any) {
+		if codecProfile["Codec"] == "hevc" {
+			t.Fatalf("HEVC constraint survived fallback: %#v", codecProfile)
+		}
+	}
+}