sync with upstream

1 files changed, 50 insertions, 0 deletions

diff --git a/xbmc/utils/BitstreamWriter.h b/xbmc/utils/BitstreamWriter.h
new file mode 100644
index 0000000..91257b2
--- /dev/null
+++ b/xbmc/utils/BitstreamWriter.h
@@ -0,0 +1,50 @@
+/*
+ *  Copyright (C) 2017-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+class CBitstreamWriter
+{
+public:
+  CBitstreamWriter(uint8_t *buffer, unsigned int buffer_size, int writer_le);
+  void WriteBits(int n, unsigned int value);
+  void SkipBits(int n);
+  void FlushBits();
+
+private:
+  int       writer_le;
+  uint32_t  bit_buf;
+  int       bit_left;
+  uint8_t   *buf, *buf_ptr;
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////
+//! @todo refactor this so as not to need these ffmpeg routines.
+//! These are not exposed in ffmpeg's API so we dupe them here.
+
+/*
+ *  AVC helper functions for muxers
+ *  Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@smartjog.com>
+ *  This is part of FFmpeg
+ *  
+ *  SPDX-License-Identifier: LGPL-2.1-or-later
+ *  See LICENSES/README.md for more information.
+ */
+#define BS_WB32(p, d) { \
+  ((uint8_t*)(p))[3] = (d); \
+  ((uint8_t*)(p))[2] = (d) >> 8; \
+  ((uint8_t*)(p))[1] = (d) >> 16; \
+  ((uint8_t*)(p))[0] = (d) >> 24; }
+
+#define BS_WL32(p, d) { \
+  ((uint8_t*)(p))[0] = (d); \
+  ((uint8_t*)(p))[1] = (d) >> 8; \
+  ((uint8_t*)(p))[2] = (d) >> 16; \
+  ((uint8_t*)(p))[3] = (d) >> 24; }