Debug byte order and fourcc gen

Author: mondain

io/src/main/java/org/red5/codec/VideoCodec.java

@@ -106,7 +106,7 @@ public IVideoStreamCodec newInstance() {
 
         @Override
         public String getMimeType() {
-            return "vp08";
+            return "vp08"; // vp8 / ffmpeg LE = 08pv / 0x76703038
         }
 
     }, // VP8 / vp08 / vp8
@@ -119,7 +119,7 @@ public IVideoStreamCodec newInstance() {
 
         @Override
         public String getMimeType() {
-            return "vp09";
+            return "vp09"; // vp9 / ffmpeg LE = 09pv / 0x76703039 
         }
 
     }, // VP9 / vp09
@@ -159,7 +159,7 @@ public IVideoStreamCodec newInstance() {
 
         @Override
         public String getMimeType() {
-            return "av01";
+            return "av01"; // av1 / ffmpeg LE = 10va / 0x61763031
         }
 
     }; // AV1 / av01

io/src/test/java/org/red5/codec/FourCCTest.java

@@ -1,21 +1,33 @@
 package org.red5.codec;
 
+import org.apache.mina.core.buffer.IoBuffer;
 import org.junit.Test;
 import org.red5.io.utils.IOUtils;
+import java.nio.ByteOrder;
 
 public class FourCCTest {
 
     @Test
     public void test() {
         VideoCodec[] values = VideoCodec.values();
         for (VideoCodec codec : values) {
-            System.out.println(codec.name() + " fourcc: " + codec.getFourcc());
-            System.out.println("mimeType: " + codec.getMimeType() + " fourcc from mime: " + IOUtils.makeFourcc(codec.getMimeType()));
+            int fourcc = codec.getFourcc();
+            System.out.println(codec.name() + " fourcc: " + fourcc + " mimeType: " + codec.getMimeType() + " fourcc from mime: " + IOUtils.makeFourcc(codec.getMimeType()));
+            IoBuffer buffer = IoBuffer.allocate(4);
+            buffer.order(ByteOrder.BIG_ENDIAN); // native order is BIG_ENDIAN in linux
+            buffer.putInt(fourcc);
+            buffer.flip();
+            System.out.println("fourcc bytes: " + buffer.getHexDump());
         }
         AudioCodec[] audioValues = AudioCodec.values();
         for (AudioCodec codec : audioValues) {
-            System.out.println(codec.name() + " fourcc: " + codec.getFourcc());
-            System.out.println("mimeType: " + codec.getMimeType() + " fourcc from mime: " + IOUtils.makeFourcc(codec.getMimeType()));
+            int fourcc = codec.getFourcc();
+            System.out.println(codec.name() + " fourcc: " + fourcc + " mimeType: " + codec.getMimeType() + " fourcc from mime: " + IOUtils.makeFourcc(codec.getMimeType()));
+            IoBuffer buffer = IoBuffer.allocate(4);
+            buffer.order(ByteOrder.BIG_ENDIAN); // native order is BIG_ENDIAN in linux
+            buffer.putInt(fourcc);
+            buffer.flip();
+            System.out.println("fourcc bytes: " + buffer.getHexDump());
         }
     }