libvpx: Pull from upstream

source/libvpx/third_party/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;
-
-  writeHeader(&ebml);
-  {
-    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);
-  }
-
-  // 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;
-}