libvpx: Add VP9 decoder.

source/libvpx/libmkv/EbmlWriter.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 "EbmlWriter.h"
 #include <stdlib.h>
 #include <wchar.h>
 #include <string.h>
 #include <limits.h>
 #if defined(_MSC_VER)
 #define LITERALU64(n) n
 #else
 #define LITERALU64(n) n##LLU
 #endif
 
-void Ebml_WriteLen(EbmlGlobal *glob, int64_t val)
-{
-    /* TODO check and make sure we are not > than 0x0100000000000000LLU */
-    unsigned char size = 8; /* size in bytes to output */
+void Ebml_WriteLen(EbmlGlobal *glob, int64_t val) {
+  /* TODO check and make sure we are not > than 0x0100000000000000LLU */
+  unsigned char size = 8; /* size in bytes to output */
 
-    /* mask to compare for byte size */
-    int64_t minVal = 0xff;
+  /* mask to compare for byte size */
+  int64_t minVal = 0xff;
 
-    for (size = 1; size < 8; size ++)
-    {
-        if (val < minVal)
-            break;
+  for (size = 1; size < 8; size ++) {
+    if (val < minVal)
+      break;
 
-        minVal = (minVal << 7);
+    minVal = (minVal << 7);
+  }
+
+  val |= (((uint64_t)0x80) << ((size - 1) * 7));
+
+  Ebml_Serialize(glob, (void *) &val, sizeof(val), size);
+}
+
+void Ebml_WriteString(EbmlGlobal *glob, const char *str) {
+  const size_t size_ = strlen(str);
+  const uint64_t  size = size_;
+  Ebml_WriteLen(glob, size);
+  /* TODO: it's not clear from the spec whether the nul terminator
+   * should be serialized too.  For now we omit the null terminator.
+   */
+  Ebml_Write(glob, str, (unsigned long)size);
+}
+
+void Ebml_WriteUTF8(EbmlGlobal *glob, const wchar_t *wstr) {
+  const size_t strlen = wcslen(wstr);
+
+  /* TODO: it's not clear from the spec whether the nul terminator
+   * should be serialized too.  For now we include it.
+   */
+  const uint64_t  size = strlen;
+
+  Ebml_WriteLen(glob, size);
+  Ebml_Write(glob, wstr, (unsigned long)size);
+}
+
+void Ebml_WriteID(EbmlGlobal *glob, unsigned long class_id) {
+  int len;
+
+  if (class_id >= 0x01000000)
+    len = 4;
+  else if (class_id >= 0x00010000)
+    len = 3;
+  else if (class_id >= 0x00000100)
+    len = 2;
+  else
+    len = 1;
+
+  Ebml_Serialize(glob, (void *)&class_id, sizeof(class_id), len);
+}
+
+void Ebml_SerializeUnsigned64(EbmlGlobal *glob, unsigned long class_id, uint64_t ui) {
+  unsigned char sizeSerialized = 8 | 0x80;
+  Ebml_WriteID(glob, class_id);
+  Ebml_Serialize(glob, &sizeSerialized, sizeof(sizeSerialized), 1);
+  Ebml_Serialize(glob, &ui, sizeof(ui), 8);
+}
+
+void Ebml_SerializeUnsigned(EbmlGlobal *glob, unsigned long class_id, unsigned long ui) {
+  unsigned char size = 8; /* size in bytes to output */
+  unsigned char sizeSerialized = 0;
+  unsigned long minVal;
+
+  Ebml_WriteID(glob, class_id);
+  minVal = 0x7fLU; /* mask to compare for byte size */
+
+  for (size = 1; size < 4; size ++) {
+    if (ui < minVal) {
+      break;
     }
 
-    val |= (((uint64_t)0x80) << ((size - 1) * 7));
+    minVal <<= 7;
+  }
 
-    Ebml_Serialize(glob, (void *) &val, sizeof(val), size);
+  sizeSerialized = 0x80 | size;
+  Ebml_Serialize(glob, &sizeSerialized, sizeof(sizeSerialized), 1);
+  Ebml_Serialize(glob, &ui, sizeof(ui), size);
+}
+/* TODO: perhaps this is a poor name for this id serializer helper function */
+void Ebml_SerializeBinary(EbmlGlobal *glob, unsigned long class_id, unsigned long bin) {
+  int size;
+  for (size = 4; size > 1; size--) {
+    if (bin & 0x000000ff << ((size - 1) * 8))
+      break;
+  }
+  Ebml_WriteID(glob, class_id);
+  Ebml_WriteLen(glob, size);
+  Ebml_WriteID(glob, bin);
 }
 
-void Ebml_WriteString(EbmlGlobal *glob, const char *str)
-{
-    const size_t size_ = strlen(str);
-    const uint64_t  size = size_;
-    Ebml_WriteLen(glob, size);
-    /* TODO: it's not clear from the spec whether the nul terminator
-     * should be serialized too.  For now we omit the null terminator.
-     */
-    Ebml_Write(glob, str, (unsigned long)size);
+void Ebml_SerializeFloat(EbmlGlobal *glob, unsigned long class_id, double d) {
+  unsigned char len = 0x88;
+
+  Ebml_WriteID(glob, class_id);
+  Ebml_Serialize(glob, &len, sizeof(len), 1);
+  Ebml_Serialize(glob,  &d, sizeof(d), 8);
 }
 
-void Ebml_WriteUTF8(EbmlGlobal *glob, const wchar_t *wstr)
-{
-    const size_t strlen = wcslen(wstr);
-
-    /* TODO: it's not clear from the spec whether the nul terminator
-     * should be serialized too.  For now we include it.
-     */
-    const uint64_t  size = strlen;
-
-    Ebml_WriteLen(glob, size);
-    Ebml_Write(glob, wstr, (unsigned long)size);
+void Ebml_WriteSigned16(EbmlGlobal *glob, short val) {
+  signed long out = ((val & 0x003FFFFF) | 0x00200000) << 8;
+  Ebml_Serialize(glob, &out, sizeof(out), 3);
 }
 
-void Ebml_WriteID(EbmlGlobal *glob, unsigned long class_id)
-{
-    int len;
-
-    if (class_id >= 0x01000000)
-        len = 4;
-    else if (class_id >= 0x00010000)
-        len = 3;
-    else if (class_id >= 0x00000100)
-        len = 2;
-    else
-        len = 1;
-
-    Ebml_Serialize(glob, (void *)&class_id, sizeof(class_id), len);
+void Ebml_SerializeString(EbmlGlobal *glob, unsigned long class_id, const char *s) {
+  Ebml_WriteID(glob, class_id);
+  Ebml_WriteString(glob, s);
 }
 
-void Ebml_SerializeUnsigned64(EbmlGlobal *glob, unsigned long class_id, uint64_t ui)
-{
-    unsigned char sizeSerialized = 8 | 0x80;
-    Ebml_WriteID(glob, class_id);
-    Ebml_Serialize(glob, &sizeSerialized, sizeof(sizeSerialized), 1);
-    Ebml_Serialize(glob, &ui, sizeof(ui), 8);
+void Ebml_SerializeUTF8(EbmlGlobal *glob, unsigned long class_id, wchar_t *s) {
+  Ebml_WriteID(glob,  class_id);
+  Ebml_WriteUTF8(glob,  s);
 }
 
-void Ebml_SerializeUnsigned(EbmlGlobal *glob, unsigned long class_id, unsigned long ui)
-{
-    unsigned char size = 8; /* size in bytes to output */
-    unsigned char sizeSerialized = 0;
-    unsigned long minVal;
-
-    Ebml_WriteID(glob, class_id);
-    minVal = 0x7fLU; /* mask to compare for byte size */
-
-    for (size = 1; size < 4; size ++)
-    {
-        if (ui < minVal)
-        {
-            break;
-        }
-
-        minVal <<= 7;
-    }
-
-    sizeSerialized = 0x80 | size;
-    Ebml_Serialize(glob, &sizeSerialized, sizeof(sizeSerialized), 1);
-    Ebml_Serialize(glob, &ui, sizeof(ui), size);
-}
-/* TODO: perhaps this is a poor name for this id serializer helper function */
-void Ebml_SerializeBinary(EbmlGlobal *glob, unsigned long class_id, unsigned long bin)
-{
-    int size;
-    for (size=4; size > 1; size--)
-    {
-        if (bin & 0x000000ff << ((size-1) * 8))
-            break;
-    }
-    Ebml_WriteID(glob, class_id);
-    Ebml_WriteLen(glob, size);
-    Ebml_WriteID(glob, bin);
+void Ebml_SerializeData(EbmlGlobal *glob, unsigned long class_id, unsigned char *data, unsigned long data_length) {
+  Ebml_WriteID(glob, class_id);
+  Ebml_WriteLen(glob, data_length);
+  Ebml_Write(glob,  data, data_length);
 }
 
-void Ebml_SerializeFloat(EbmlGlobal *glob, unsigned long class_id, double d)
-{
-    unsigned char len = 0x88;
+void Ebml_WriteVoid(EbmlGlobal *glob, unsigned long vSize) {
+  unsigned char tmp = 0;
+  unsigned long i = 0;
 
-    Ebml_WriteID(glob, class_id);
-    Ebml_Serialize(glob, &len, sizeof(len), 1);
-    Ebml_Serialize(glob,  &d, sizeof(d), 8);
-}
+  Ebml_WriteID(glob, 0xEC);
+  Ebml_WriteLen(glob, vSize);
 
-void Ebml_WriteSigned16(EbmlGlobal *glob, short val)
-{
-    signed long out = ((val & 0x003FFFFF) | 0x00200000) << 8;
-    Ebml_Serialize(glob, &out, sizeof(out), 3);
-}
-
-void Ebml_SerializeString(EbmlGlobal *glob, unsigned long class_id, const char *s)
-{
-    Ebml_WriteID(glob, class_id);
-    Ebml_WriteString(glob, s);
-}
-
-void Ebml_SerializeUTF8(EbmlGlobal *glob, unsigned long class_id, wchar_t *s)
-{
-    Ebml_WriteID(glob,  class_id);
-    Ebml_WriteUTF8(glob,  s);
-}
-
-void Ebml_SerializeData(EbmlGlobal *glob, unsigned long class_id, unsigned char *data, unsigned long data_length)
-{
-    Ebml_WriteID(glob, class_id);
-    Ebml_WriteLen(glob, data_length);
-    Ebml_Write(glob,  data, data_length);
-}
-
-void Ebml_WriteVoid(EbmlGlobal *glob, unsigned long vSize)
-{
-    unsigned char tmp = 0;
-    unsigned long i = 0;
-
-    Ebml_WriteID(glob, 0xEC);
-    Ebml_WriteLen(glob, vSize);
-
-    for (i = 0; i < vSize; i++)
-    {
-        Ebml_Write(glob, &tmp, 1);
-    }
+  for (i = 0; i < vSize; i++) {
+    Ebml_Write(glob, &tmp, 1);
+  }
 }
 
 /* TODO Serialize Date */