Initial-checkin for ON2 Software AVC/H264 decoder

o when neon is present, the performance gain of On2 AVC software decoder
  over PV software decoder is more than 30%.

o In addition, it fixes some known PV software decoder issues like missing
  output frames

o allow both pv and on2 software avc to be available for easy comparision

o change output frames from 8 to 16

Change-Id: I567ad1842025ead7092f0c47e3513d6d9ca232dd

1 files changed, 67 insertions, 0 deletions

diff --git a/media/libstagefright/codecs/on2/h264dec/source/h264bsd_stream.h b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_stream.h
new file mode 100755
index 0000000..4404b66
--- /dev/null
+++ b/media/libstagefright/codecs/on2/h264dec/source/h264bsd_stream.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*------------------------------------------------------------------------------
+
+    Table of contents
+
+    1. Include headers
+    2. Module defines
+    3. Data types
+    4. Function prototypes
+
+------------------------------------------------------------------------------*/
+
+#ifndef H264SWDEC_STREAM_H
+#define H264SWDEC_STREAM_H
+
+/*------------------------------------------------------------------------------
+    1. Include headers
+------------------------------------------------------------------------------*/
+
+#include "basetype.h"
+
+/*------------------------------------------------------------------------------
+    2. Module defines
+------------------------------------------------------------------------------*/
+
+/*------------------------------------------------------------------------------
+    3. Data types
+------------------------------------------------------------------------------*/
+
+typedef struct
+{
+    u8  *pStrmBuffStart;    /* pointer to start of stream buffer */
+    u8  *pStrmCurrPos;      /* current read address in stream buffer */
+    u32  bitPosInWord;      /* bit position in stream buffer byte */
+    u32  strmBuffSize;      /* size of stream buffer (bytes) */
+    u32  strmBuffReadBits;  /* number of bits read from stream buffer */
+} strmData_t;
+
+/*------------------------------------------------------------------------------
+    4. Function prototypes
+------------------------------------------------------------------------------*/
+
+u32 h264bsdGetBits(strmData_t *pStrmData, u32 numBits);
+
+u32 h264bsdShowBits32(strmData_t *pStrmData);
+
+u32 h264bsdFlushBits(strmData_t *pStrmData, u32 numBits);
+
+u32 h264bsdIsByteAligned(strmData_t *);
+
+#endif /* #ifdef H264SWDEC_STREAM_H */
+