1 files changed, 51 insertions, 0 deletions
diff --git a/media/libaom/src/aom_dsp/bitwriter_buffer.h b/media/libaom/src/aom_dsp/bitwriter_buffer.h
new file mode 100644
index 000000000..d0311284f
--- /dev/null
+++ b/media/libaom/src/aom_dsp/bitwriter_buffer.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#ifndef AOM_AOM_DSP_BITWRITER_BUFFER_H_
+#define AOM_AOM_DSP_BITWRITER_BUFFER_H_
+
+#include "aom/aom_integer.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct aom_write_bit_buffer {
+  uint8_t *bit_buffer;
+  uint32_t bit_offset;
+};
+
+int aom_wb_is_byte_aligned(const struct aom_write_bit_buffer *wb);
+
+uint32_t aom_wb_bytes_written(const struct aom_write_bit_buffer *wb);
+
+void aom_wb_write_bit(struct aom_write_bit_buffer *wb, int bit);
+
+void aom_wb_overwrite_bit(struct aom_write_bit_buffer *wb, int bit);
+
+void aom_wb_write_literal(struct aom_write_bit_buffer *wb, int data, int bits);
+
+void aom_wb_write_unsigned_literal(struct aom_write_bit_buffer *wb,
+                                   uint32_t data, int bits);
+
+void aom_wb_overwrite_literal(struct aom_write_bit_buffer *wb, int data,
+                              int bits);
+
+void aom_wb_write_inv_signed_literal(struct aom_write_bit_buffer *wb, int data,
+                                     int bits);
+
+void aom_wb_write_uvlc(struct aom_write_bit_buffer *wb, uint32_t v);
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // AOM_AOM_DSP_BITWRITER_BUFFER_H_