libvpx: Add VP9 decoder.

source/libvpx/libmkv/testlibmkv.c

 // Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the LICENSE file in the root of the source
 // tree. An additional intellectual property rights grant can be found
 // in the file PATENTS.  All contributing project authors may
 // be found in the AUTHORS file in the root of the source tree.
 
 
 
 #include "EbmlIDs.h"
 #include "EbmlBufferWriter.h"
 #include "WebMElement.h"
 
 #include <stdio.h>
-int main(int argc, char *argv[])
-{
-    //init the datatype we're using for ebml output
-    unsigned char data[8192];
-    EbmlGlobal ebml;
-    ebml.buf = data;
-    ebml.offset = 0;
-    ebml.length = 8192;
+int main(int argc, char *argv[]) {
+  // init the datatype we're using for ebml output
+  unsigned char data[8192];
+  EbmlGlobal ebml;
+  ebml.buf = data;
+  ebml.offset = 0;
+  ebml.length = 8192;
 
-    writeHeader(&ebml);
+  writeHeader(&ebml);
+  {
+    EbmlLoc startSegment;
+    Ebml_StartSubElement(&ebml, &startSegment, Segment); // segment
     {
-        EbmlLoc startSegment;
-        Ebml_StartSubElement(&ebml, &startSegment, Segment); //segment
-        {
-            //segment info
-            EbmlLoc startInfo;
-            Ebml_StartSubElement(&ebml, &startInfo, Info);
-            Ebml_SerializeString(&ebml, 0x4D80, "muxingAppLibMkv");
-            Ebml_SerializeString(&ebml, 0x5741, "writingAppLibMkv");
-            Ebml_EndSubElement(&ebml, &startInfo);
-        }
-
-        {
-            EbmlLoc trackStart;
-            Ebml_StartSubElement(&ebml, &trackStart, Tracks);
-            writeVideoTrack(&ebml, 1, 1, "V_MS/VFW/FOURCC", 320, 240, 29.97);
-            //writeAudioTrack(&ebml,2,1, "A_VORBIS", 32000, 1, NULL, 0);
-            Ebml_EndSubElement(&ebml, &trackStart);
-        }
-
-        {
-            EbmlLoc clusterStart;
-            Ebml_StartSubElement(&ebml, &clusterStart, Cluster); //cluster
-            Ebml_SerializeUnsigned(&ebml, Timecode, 0);
-
-            unsigned char someData[4] = {1, 2, 3, 4};
-            writeSimpleBlock(&ebml, 1, 0, 1, 0, 0, someData, 4);
-            Ebml_EndSubElement(&ebml, &clusterStart);
-        }    //end cluster
-        Ebml_EndSubElement(&ebml, &startSegment);
+      // segment info
+      EbmlLoc startInfo;
+      Ebml_StartSubElement(&ebml, &startInfo, Info);
+      Ebml_SerializeString(&ebml, 0x4D80, "muxingAppLibMkv");
+      Ebml_SerializeString(&ebml, 0x5741, "writingAppLibMkv");
+      Ebml_EndSubElement(&ebml, &startInfo);
     }
 
-    //dump ebml stuff to the file
-    FILE *file_out = fopen("test.mkv", "wb");
-    size_t bytesWritten = fwrite(data, 1, ebml.offset, file_out);
-    fclose(file_out);
-    return 0;
+    {
+      EbmlLoc trackStart;
+      Ebml_StartSubElement(&ebml, &trackStart, Tracks);
+      writeVideoTrack(&ebml, 1, 1, "V_MS/VFW/FOURCC", 320, 240, 29.97);
+      // writeAudioTrack(&ebml,2,1, "A_VORBIS", 32000, 1, NULL, 0);
+      Ebml_EndSubElement(&ebml, &trackStart);
+    }
+
+    {
+      EbmlLoc clusterStart;
+      Ebml_StartSubElement(&ebml, &clusterStart, Cluster); // cluster
+      Ebml_SerializeUnsigned(&ebml, Timecode, 0);
+
+      unsigned char someData[4] = {1, 2, 3, 4};
+      writeSimpleBlock(&ebml, 1, 0, 1, 0, 0, someData, 4);
+      Ebml_EndSubElement(&ebml, &clusterStart);
+    }    // end cluster
+    Ebml_EndSubElement(&ebml, &startSegment);
+  }
+
+  // dump ebml stuff to the file
+  FILE *file_out = fopen("test.mkv", "wb");
+  size_t bytesWritten = fwrite(data, 1, ebml.offset, file_out);
+  fclose(file_out);
+  return 0;
 }