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, 85 insertions, 0 deletions

diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_SADQuar_4x.c b/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_SADQuar_4x.c
new file mode 100644
index 0000000..4b330ba
--- /dev/null
+++ b/media/libstagefright/codecs/on2/h264dec/omxdl/reference/vc/m4p10/src/omxVCM4P10_SADQuar_4x.c
@@ -0,0 +1,85 @@
+/**
+ * 
+ * File Name:  omxVCM4P10_SADQuar_4x.c
+ * OpenMAX DL: v1.0.2
+ * Revision:   9641
+ * Date:       Thursday, February 7, 2008
+ * 
+ * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved.
+ * 
+ * 
+ * Description:
+ * This function will calculate SAD of pSrc with average of two Ref blocks
+ * of 4x8 or 4x4 blocks
+ * 
+ */
+
+#include "omxtypes.h"
+#include "armOMX.h"
+#include "omxVC.h"
+
+#include "armVC.h"
+#include "armCOMM.h"
+
+/**
+ * Function:  omxVCM4P10_SADQuar_4x   (6.3.5.4.2)
+ *
+ * Description:
+ * This function calculates the SAD between one block (pSrc) and the average 
+ * of the other two (pSrcRef0 and pSrcRef1) for 4x8 or 4x4 blocks.  Rounding 
+ * is applied according to the convention (a+b+1)>>1. 
+ *
+ * Input Arguments:
+ *   
+ *   pSrc - Pointer to the original block; must be aligned on a 4-byte 
+ *            boundary. 
+ *   pSrcRef0 - Pointer to reference block 0 
+ *   pSrcRef1 - Pointer to reference block 1 
+ *   iSrcStep - Step of the original block buffer; must be a multiple of 4. 
+ *   iRefStep0 - Step of reference block 0 
+ *   iRefStep1 - Step of reference block 1 
+ *   iHeight - Height of the block; must be equal to either 4 or 8. 
+ *
+ * Output Arguments:
+ *   
+ *   pDstSAD - Pointer of result SAD 
+ *
+ * Return Value:
+ *    OMX_Sts_NoErr, if the function runs without error.
+ *    OMX_Sts_BadArgErr - bad arguments: if one of the following cases occurs: 
+ *    -    iHeight is not equal to either 4 or 8. 
+ *    -    One of more of the following pointers is NULL: pSrc, pSrcRef0, 
+ *              pSrcRef1, pDstSAD. 
+ *    -    iSrcStep is not a multiple of 4 
+ *    -    Any alignment restrictions are violated 
+ *
+ */
+OMXResult omxVCM4P10_SADQuar_4x( 
+	  const OMX_U8* 	pSrc,
+      const OMX_U8* 	pSrcRef0,
+	  const OMX_U8* 	pSrcRef1,	
+      OMX_U32 	iSrcStep,
+      OMX_U32	iRefStep0,
+      OMX_U32	iRefStep1,
+      OMX_U32*	pDstSAD,
+      OMX_U32   iHeight
+)
+{
+    /* check for argument error */
+    armRetArgErrIf(pSrc == NULL, OMX_Sts_BadArgErr);
+    armRetArgErrIf(pSrcRef0 == NULL, OMX_Sts_BadArgErr);
+    armRetArgErrIf(pSrcRef1 == NULL, OMX_Sts_BadArgErr);
+    armRetArgErrIf(pDstSAD == NULL, OMX_Sts_BadArgErr);
+    armRetArgErrIf((iHeight != 8) && (iHeight != 4), OMX_Sts_BadArgErr);
+    armRetArgErrIf(armNot4ByteAligned(pSrc), OMX_Sts_BadArgErr);
+    armRetArgErrIf((iSrcStep == 0) || (iSrcStep & 3), OMX_Sts_BadArgErr);
+    
+    return armVCM4P10_SADQuar
+        (pSrc, pSrcRef0, pSrcRef1, iSrcStep, 
+        iRefStep0, iRefStep1, pDstSAD, iHeight, 4);
+}
+
+/*****************************************************************************
+ *                              END OF FILE
+ *****************************************************************************/
+