Rename sendCodecId to sendCodecMeta

This will allow the codec header to contain more than the codec id.

server/src/main/java/com/genymobile/scrcpy/Options.java

@@ -40,7 +40,7 @@ public class Options {
     private boolean sendDeviceMeta = true; // send device name and size
     private boolean sendFrameMeta = true; // send PTS so that the client may record properly
     private boolean sendDummyByte = true; // write a byte on start to detect connection issues
-    private boolean sendCodecId = true; // write the codec ID (4 bytes) before the stream
+    private boolean sendCodecMeta = true; // write the codec metadata before the stream
 
     public Ln.Level getLogLevel() {
         return logLevel;
@@ -282,11 +282,11 @@ public class Options {
         this.sendDummyByte = sendDummyByte;
     }
 
-    public boolean getSendCodecId() {
-        return sendCodecId;
+    public boolean getSendCodecMeta() {
+        return sendCodecMeta;
     }
 
-    public void setSendCodecId(boolean sendCodecId) {
-        this.sendCodecId = sendCodecId;
+    public void setSendCodecMeta(boolean sendCodecMeta) {
+        this.sendCodecMeta = sendCodecMeta;
     }
 }

server/src/main/java/com/genymobile/scrcpy/Server.java

@@ -108,7 +108,7 @@ public final class Server {
 
             if (audio) {
                 AudioCodec audioCodec = options.getAudioCodec();
-                Streamer audioStreamer = new Streamer(connection.getAudioFd(), audioCodec, options.getSendCodecId(),
+                Streamer audioStreamer = new Streamer(connection.getAudioFd(), audioCodec, options.getSendCodecMeta(),
                         options.getSendFrameMeta());
                 AsyncProcessor audioRecorder;
                 if (audioCodec == AudioCodec.RAW) {
@@ -120,7 +120,7 @@ public final class Server {
                 asyncProcessors.add(audioRecorder);
             }
 
-            Streamer videoStreamer = new Streamer(connection.getVideoFd(), options.getVideoCodec(), options.getSendCodecId(),
+            Streamer videoStreamer = new Streamer(connection.getVideoFd(), options.getVideoCodec(), options.getSendCodecMeta(),
                     options.getSendFrameMeta());
             ScreenEncoder screenEncoder = new ScreenEncoder(device, videoStreamer, options.getVideoBitRate(), options.getMaxFps(),
                     options.getVideoCodecOptions(), options.getVideoEncoder(), options.getDownsizeOnError());
@@ -315,9 +315,9 @@ public final class Server {
                     boolean sendDummyByte = Boolean.parseBoolean(value);
                     options.setSendDummyByte(sendDummyByte);
                     break;
-                case "send_codec_id":
-                    boolean sendCodecId = Boolean.parseBoolean(value);
-                    options.setSendCodecId(sendCodecId);
+                case "send_codec_meta":
+                    boolean sendCodecMeta = Boolean.parseBoolean(value);
+                    options.setSendCodecMeta(sendCodecMeta);
                     break;
                 case "raw_video_stream":
                     boolean rawVideoStream = Boolean.parseBoolean(value);
@@ -325,7 +325,7 @@ public final class Server {
                         options.setSendDeviceMeta(false);
                         options.setSendFrameMeta(false);
                         options.setSendDummyByte(false);
-                        options.setSendCodecId(false);
+                        options.setSendCodecMeta(false);
                     }
                     break;
                 default:

server/src/main/java/com/genymobile/scrcpy/Streamer.java

@@ -15,15 +15,15 @@ public final class Streamer {
 
     private final FileDescriptor fd;
     private final Codec codec;
-    private final boolean sendCodecId;
+    private final boolean sendCodecMeta;
     private final boolean sendFrameMeta;
 
     private final ByteBuffer headerBuffer = ByteBuffer.allocate(12);
 
-    public Streamer(FileDescriptor fd, Codec codec, boolean sendCodecId, boolean sendFrameMeta) {
+    public Streamer(FileDescriptor fd, Codec codec, boolean sendCodecMeta, boolean sendFrameMeta) {
         this.fd = fd;
         this.codec = codec;
-        this.sendCodecId = sendCodecId;
+        this.sendCodecMeta = sendCodecMeta;
         this.sendFrameMeta = sendFrameMeta;
     }
 
@@ -32,7 +32,7 @@ public final class Streamer {
     }
 
     public void writeHeader() throws IOException {
-        if (sendCodecId) {
+        if (sendCodecMeta) {
             ByteBuffer buffer = ByteBuffer.allocate(4);
             buffer.putInt(codec.getId());
             buffer.flip();