Merge remote branch 'origin/master' into experimental
Change-Id: I52f21ff6f9a1dca7099a8459657f6f288c5bfe40
diff --git a/configure b/configure
index f92ffc5..09cfcf0 100755
--- a/configure
+++ b/configure
@@ -212,6 +212,9 @@
pthread_h
sys_mman_h
"
+EXPERIMENT_LIST="
+ extend_qrange
+"
CONFIG_LIST="
external_build
install_docs
@@ -252,6 +255,9 @@
small
postproc_visualizer
os_support
+
+ experimental
+ ${EXPERIMENT_LIST}
"
CMDLINE_SELECT="
extra_warnings
@@ -288,6 +294,7 @@
mem_tracker
spatial_resampling
realtime_only
+ experimental
shared
small
postproc_visualizer
@@ -298,7 +305,18 @@
optval="${opt#*=}"
case "$opt" in
--disable-codecs) for c in ${CODECS}; do disable $c; done ;;
- *) process_common_cmdline "$opt"
+ --enable-?*|--disable-?*)
+ eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
+ if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
+ if enabled experimental; then
+ $action $option
+ else
+ log_echo "Ignoring $opt -- not in experimental mode."
+ fi
+ else
+ process_common_cmdline "$opt"
+ fi
+ ;;
;;
esac
done
diff --git a/vp8/common/alloccommon.c b/vp8/common/alloccommon.c
index ceb9e52..3d2f753 100644
--- a/vp8/common/alloccommon.c
+++ b/vp8/common/alloccommon.c
@@ -125,7 +125,16 @@
}
void vp8_setup_version(VP8_COMMON *cm)
{
- switch (cm->version)
+ if (cm->version & 0x4)
+ {
+ if (!CONFIG_EXPERIMENTAL)
+ vpx_internal_error(&cm->error, VPX_CODEC_UNSUP_BITSTREAM,
+ "Bitstream was created by an experimental "
+ "encoder");
+ cm->experimental = 1;
+ }
+
+ switch (cm->version & 0x3)
{
case 0:
cm->no_lpf = 0;
@@ -151,13 +160,6 @@
cm->use_bilinear_mc_filter = 1;
cm->full_pixel = 1;
break;
- default:
- /*4,5,6,7 are reserved for future use*/
- cm->no_lpf = 0;
- cm->simpler_lpf = 0;
- cm->use_bilinear_mc_filter = 0;
- cm->full_pixel = 0;
- break;
}
}
void vp8_create_common(VP8_COMMON *oci)
diff --git a/vp8/common/entropy.c b/vp8/common/entropy.c
index a1fe4f4..2194832 100644
--- a/vp8/common/entropy.c
+++ b/vp8/common/entropy.c
@@ -76,7 +76,7 @@
static const Prob Pcat4[] = { 176, 155, 140, 135};
static const Prob Pcat5[] = { 180, 157, 141, 134, 130};
static const Prob Pcat6[] =
-{ 254, 254, 243, 230, 196, 177, 153, 140, 133, 130, 129};
+{ 254, 254, 252, 249, 243, 230, 196, 177, 153, 140, 133, 130, 129};
static vp8_tree_index cat1[2], cat2[4], cat3[6], cat4[8], cat5[10], cat6[22];
@@ -111,7 +111,7 @@
init_bit_tree(cat3, 3);
init_bit_tree(cat4, 4);
init_bit_tree(cat5, 5);
- init_bit_tree(cat6, 11);
+ init_bit_tree(cat6, 13);
}
vp8_extra_bit_struct vp8_extra_bits[12] =
@@ -126,7 +126,7 @@
{ cat3, Pcat3, 3, 11},
{ cat4, Pcat4, 4, 19},
{ cat5, Pcat5, 5, 35},
- { cat6, Pcat6, 11, 67},
+ { cat6, Pcat6, 13, 67},
{ 0, 0, 0, 0}
};
#include "defaultcoefcounts.h"
diff --git a/vp8/common/entropy.h b/vp8/common/entropy.h
index d174e45..77f2673 100644
--- a/vp8/common/entropy.h
+++ b/vp8/common/entropy.h
@@ -27,7 +27,7 @@
#define DCT_VAL_CATEGORY3 7 /* 11-18 Extra Bits 3+1 */
#define DCT_VAL_CATEGORY4 8 /* 19-34 Extra Bits 4+1 */
#define DCT_VAL_CATEGORY5 9 /* 35-66 Extra Bits 5+1 */
-#define DCT_VAL_CATEGORY6 10 /* 67+ Extra Bits 11+1 */
+#define DCT_VAL_CATEGORY6 10 /* 67+ Extra Bits 13+1 */
#define DCT_EOB_TOKEN 11 /* EOB Extra Bits 0+0 */
#define vp8_coef_tokens 12
@@ -51,7 +51,7 @@
#define PROB_UPDATE_BASELINE_COST 7
#define MAX_PROB 255
-#define DCT_MAX_VALUE 2048
+#define DCT_MAX_VALUE 8192
/* Coefficients are predicted via a 3-dimensional probability table. */
diff --git a/vp8/common/generic/systemdependent.c b/vp8/common/generic/systemdependent.c
index c843d86..b2eca3e 100644
--- a/vp8/common/generic/systemdependent.c
+++ b/vp8/common/generic/systemdependent.c
@@ -83,8 +83,18 @@
vp8_arch_x86_common_init(ctx);
#endif
+
#if ARCH_ARM
vp8_arch_arm_common_init(ctx);
#endif
+#if CONFIG_EXTEND_QRANGE
+ rtcd->idct.idct1 = vp8_short_idct4x4llm_1_c;
+ rtcd->idct.idct16 = vp8_short_idct4x4llm_c;
+ rtcd->idct.idct1_scalar_add = vp8_dc_only_idct_add_c;
+ rtcd->idct.iwalsh1 = vp8_short_inv_walsh4x4_1_c;
+ rtcd->idct.iwalsh16 = vp8_short_inv_walsh4x4_c;
+
+#endif
+
}
diff --git a/vp8/common/idctllm.c b/vp8/common/idctllm.c
index 196062d..c65d35a 100644
--- a/vp8/common/idctllm.c
+++ b/vp8/common/idctllm.c
@@ -22,6 +22,8 @@
* so
* x * sqrt(2) * cos (pi/8) = x + x * (sqrt(2) *cos(pi/8)-1).
**************************************************************************/
+#include "vpx_ports/config.h"
+
static const int cospi8sqrt2minus1 = 20091;
static const int sinpi8sqrt2 = 35468;
static const int rounding = 0;
@@ -75,11 +77,19 @@
d1 = temp1 + temp2;
+#if !CONFIG_EXTEND_QRANGE
op[0] = (a1 + d1 + 4) >> 3;
op[3] = (a1 - d1 + 4) >> 3;
op[1] = (b1 + c1 + 4) >> 3;
op[2] = (b1 - c1 + 4) >> 3;
+#else
+ op[0] = (a1 + d1 + 16) >> 5;
+ op[3] = (a1 - d1 + 16) >> 5;
+
+ op[1] = (b1 + c1 + 16) >> 5;
+ op[2] = (b1 - c1 + 16) >> 5;
+#endif
ip += shortpitch;
op += shortpitch;
@@ -92,8 +102,11 @@
int a1;
short *op = output;
int shortpitch = pitch >> 1;
+#if !CONFIG_EXTEND_QRANGE
a1 = ((input[0] + 4) >> 3);
-
+#else
+ a1 = ((input[0] + 16) >> 5);
+#endif
for (i = 0; i < 4; i++)
{
op[0] = a1;
@@ -106,7 +119,11 @@
void vp8_dc_only_idct_add_c(short input_dc, unsigned char *pred_ptr, unsigned char *dst_ptr, int pitch, int stride)
{
+#if !CONFIG_EXTEND_QRANGE
int a1 = ((input_dc + 4) >> 3);
+#else
+ int a1 = ((input_dc + 16) >> 5);
+#endif
int r, c;
for (r = 0; r < 4; r++)
@@ -168,11 +185,17 @@
c2 = a1 - b1;
d2 = d1 - c1;
+#if !CONFIG_EXTEND_QRANGE
op[0] = (a2 + 3) >> 3;
op[1] = (b2 + 3) >> 3;
op[2] = (c2 + 3) >> 3;
op[3] = (d2 + 3) >> 3;
-
+#else
+ op[0] = (a2 + 1) >> 2;
+ op[1] = (b2 + 1) >> 2;
+ op[2] = (c2 + 1) >> 2;
+ op[3] = (d2 + 1) >> 2;
+#endif
ip += 4;
op += 4;
}
@@ -184,7 +207,11 @@
int a1;
short *op = output;
- a1 = ((input[0] + 3) >> 3);
+#if !CONFIG_EXTEND_QRANGE
+ a1 = (input[0] + 3 )>> 3;
+#else
+ a1 = (input[0] + 1 )>> 2;
+#endif
for (i = 0; i < 4; i++)
{
diff --git a/vp8/common/onyxc_int.h b/vp8/common/onyxc_int.h
index c8c2277..a91cb33 100644
--- a/vp8/common/onyxc_int.h
+++ b/vp8/common/onyxc_int.h
@@ -117,6 +117,7 @@
int mode_info_stride;
/* profile settings */
+ int experimental;
int mb_no_coeff_skip;
int no_lpf;
int simpler_lpf;
diff --git a/vp8/common/quant_common.c b/vp8/common/quant_common.c
index e9833fe..b8e6e29 100644
--- a/vp8/common/quant_common.c
+++ b/vp8/common/quant_common.c
@@ -11,6 +11,8 @@
#include "quant_common.h"
+
+#if !CONFIG_EXTEND_QRANGE
static const int dc_qlookup[QINDEX_RANGE] =
{
4, 5, 6, 7, 8, 9, 10, 10, 11, 12, 13, 14, 15, 16, 17, 17,
@@ -34,7 +36,32 @@
155, 158, 161, 164, 167, 170, 173, 177, 181, 185, 189, 193, 197, 201, 205, 209,
213, 217, 221, 225, 229, 234, 239, 245, 249, 254, 259, 264, 269, 274, 279, 284,
};
+#else
+static const int dc_qlookup[QINDEX_RANGE] =
+{
+ 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+ 20, 21, 22, 23, 24, 25, 26, 27, 28, 30, 32, 34, 36, 38, 40, 42,
+ 44, 46, 49, 52, 55, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88,
+ 92, 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, 148, 152,
+ 156, 160, 164, 168, 172, 176, 180, 184, 188, 192, 196, 200, 205, 210, 215, 220,
+ 225, 230, 235, 240, 245, 250, 255, 260, 265, 270, 275, 280, 285, 290, 295, 300,
+ 310, 320, 330, 340, 350, 360, 370, 380, 390, 400, 410, 420, 430, 440, 450, 460,
+ 472, 484, 496, 508, 520, 532, 544, 556, 572, 588, 608, 628, 648, 668, 692, 720,
+};
+
+static const int ac_qlookup[QINDEX_RANGE] =
+{
+ 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+ 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 51,
+ 54, 57, 60, 63, 66, 69, 72, 76, 80, 84, 88, 92, 96, 100, 105, 110,
+ 115, 120, 125, 130, 135, 140, 146, 152, 158, 164, 170, 176, 182, 188, 194, 200,
+ 206, 212, 218, 224, 232, 240, 248, 256, 264, 272, 280, 288, 296, 304, 312, 320,
+ 330, 340, 350, 360, 370, 380, 392, 404, 416, 428, 440, 454, 468, 482, 496, 510,
+ 524, 540, 556, 572, 588, 604, 622, 640, 658, 676, 696, 716, 736, 756, 776, 796,
+ 820, 844, 868, 892, 916, 944, 972, 1000, 1032, 1064, 1096, 1128, 1168, 1208, 1252, 1300
+};
+#endif
int vp8_dc_quant(int QIndex, int Delta)
{
@@ -62,7 +89,11 @@
else if (QIndex < 0)
QIndex = 0;
+#if !CONFIG_EXTEND_QRANGE
retval = dc_qlookup[ QIndex ] * 2;
+#else
+ retval = dc_qlookup[ QIndex ];
+#endif
return retval;
}
@@ -72,16 +103,13 @@
QIndex = QIndex + Delta;
- if (QIndex > 127)
- QIndex = 127;
+ if (QIndex > 117)
+ QIndex = 117;
else if (QIndex < 0)
QIndex = 0;
retval = dc_qlookup[ QIndex ];
- if (retval > 132)
- retval = 132;
-
return retval;
}
@@ -108,12 +136,13 @@
QIndex = 127;
else if (QIndex < 0)
QIndex = 0;
-
+#if !CONFIG_EXTEND_QRANGE
retval = (ac_qlookup[ QIndex ] * 155) / 100;
-
if (retval < 8)
retval = 8;
-
+#else
+ retval = ac_qlookup[ QIndex ];
+#endif
return retval;
}
int vp8_ac_uv_quant(int QIndex, int Delta)
diff --git a/vp8/common/reconintra4x4.c b/vp8/common/reconintra4x4.c
index cd70dca..8ddae00 100644
--- a/vp8/common/reconintra4x4.c
+++ b/vp8/common/reconintra4x4.c
@@ -81,10 +81,10 @@
{
unsigned int ap[4];
- ap[0] = (top_left + 2 * Above[0] + Above[1] + 2) >> 2;
- ap[1] = (Above[0] + 2 * Above[1] + Above[2] + 2) >> 2;
- ap[2] = (Above[1] + 2 * Above[2] + Above[3] + 2) >> 2;
- ap[3] = (Above[2] + 2 * Above[3] + Above[4] + 2) >> 2;
+ ap[0] = Above[0];
+ ap[1] = Above[1];
+ ap[2] = Above[2];
+ ap[3] = Above[3];
for (r = 0; r < 4; r++)
{
@@ -105,10 +105,10 @@
{
unsigned int lp[4];
- lp[0] = (top_left + 2 * Left[0] + Left[1] + 2) >> 2;
- lp[1] = (Left[0] + 2 * Left[1] + Left[2] + 2) >> 2;
- lp[2] = (Left[1] + 2 * Left[2] + Left[3] + 2) >> 2;
- lp[3] = (Left[2] + 2 * Left[3] + Left[3] + 2) >> 2;
+ lp[0] = Left[0];
+ lp[1] = Left[1];
+ lp[2] = Left[2];
+ lp[3] = Left[3];
for (r = 0; r < 4; r++)
{
diff --git a/vp8/decoder/detokenize.c b/vp8/decoder/detokenize.c
index 83fa14d..e4440f0 100644
--- a/vp8/decoder/detokenize.c
+++ b/vp8/decoder/detokenize.c
@@ -38,23 +38,23 @@
{
INT16 min_val;
INT16 Length;
- UINT8 Probs[12];
+ UINT8 Probs[14];
} TOKENEXTRABITS;
*/
DECLARE_ALIGNED(16, static const TOKENEXTRABITS, vp8d_token_extra_bits2[MAX_ENTROPY_TOKENS]) =
{
- { 0, -1, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* ZERO_TOKEN */
- { 1, 0, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* ONE_TOKEN */
- { 2, 0, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* TWO_TOKEN */
- { 3, 0, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* THREE_TOKEN */
- { 4, 0, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* FOUR_TOKEN */
- { 5, 0, { 159, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* DCT_VAL_CATEGORY1 */
- { 7, 1, { 145, 165, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* DCT_VAL_CATEGORY2 */
- { 11, 2, { 140, 148, 173, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* DCT_VAL_CATEGORY3 */
- { 19, 3, { 135, 140, 155, 176, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* DCT_VAL_CATEGORY4 */
- { 35, 4, { 130, 134, 141, 157, 180, 0, 0, 0, 0, 0, 0, 0 } }, /* DCT_VAL_CATEGORY5 */
- { 67, 10, { 129, 130, 133, 140, 153, 177, 196, 230, 243, 254, 254, 0 } }, /* DCT_VAL_CATEGORY6 */
+ { 0, -1, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* ZERO_TOKEN */
+ { 1, 0, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* ONE_TOKEN */
+ { 2, 0, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* TWO_TOKEN */
+ { 3, 0, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* THREE_TOKEN */
+ { 4, 0, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* FOUR_TOKEN */
+ { 5, 0, { 159, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* DCT_VAL_CATEGORY1 */
+ { 7, 1, { 145, 165, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* DCT_VAL_CATEGORY2 */
+ { 11, 2, { 140, 148, 173, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* DCT_VAL_CATEGORY3 */
+ { 19, 3, { 135, 140, 155, 176, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* DCT_VAL_CATEGORY4 */
+ { 35, 4, { 130, 134, 141, 157, 180, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* DCT_VAL_CATEGORY5 */
+ { 67, 12, { 129, 130, 133, 140, 153, 177, 196, 230, 243, 249, 252, 254, 254, 0 } }, /* DCT_VAL_CATEGORY6 */
{ 0, -1, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }, /* EOB TOKEN */
};
diff --git a/vp8/decoder/generic/dsystemdependent.c b/vp8/decoder/generic/dsystemdependent.c
index 2406dea..f766532 100644
--- a/vp8/decoder/generic/dsystemdependent.c
+++ b/vp8/decoder/generic/dsystemdependent.c
@@ -33,7 +33,16 @@
vp8_arch_x86_decode_init(pbi);
#endif
+
#if ARCH_ARM
vp8_arch_arm_decode_init(pbi);
#endif
+
+#if CONFIG_EXTEND_QRANGE
+ pbi->dequant.idct_add = vp8_dequant_idct_add_c;
+ pbi->dequant.dc_idct_add = vp8_dequant_dc_idct_add_c;
+ pbi->dequant.dc_idct_add_y_block = vp8_dequant_dc_idct_add_y_block_c;
+ pbi->dequant.idct_add_y_block = vp8_dequant_idct_add_y_block_c;
+ pbi->dequant.idct_add_uv_block = vp8_dequant_idct_add_uv_block_c;
+#endif
}
diff --git a/vp8/decoder/onyxd_int.h b/vp8/decoder/onyxd_int.h
index ac1e332..512f1fc 100644
--- a/vp8/decoder/onyxd_int.h
+++ b/vp8/decoder/onyxd_int.h
@@ -41,9 +41,9 @@
typedef struct
{
- INT16 min_val;
- INT16 Length;
- UINT8 Probs[12];
+ INT16 min_val;
+ INT16 Length;
+ UINT8 Probs[14];
} TOKENEXTRABITS;
typedef struct
diff --git a/vp8/encoder/dct.c b/vp8/encoder/dct.c
index b5a11ae..69a882c 100644
--- a/vp8/encoder/dct.c
+++ b/vp8/encoder/dct.c
@@ -10,7 +10,7 @@
#include <math.h>
-
+#include "vpx_ports/config.h"
void vp8_short_fdct4x4_c(short *input, short *output, int pitch)
{
int i;
@@ -20,11 +20,17 @@
for (i = 0; i < 4; i++)
{
+#if CONFIG_EXTEND_QRANGE
+ a1 = ((ip[0] + ip[3])<<5);
+ b1 = ((ip[1] + ip[2])<<5);
+ c1 = ((ip[1] - ip[2])<<5);
+ d1 = ((ip[0] - ip[3])<<5);
+#else
a1 = ((ip[0] + ip[3])<<3);
b1 = ((ip[1] + ip[2])<<3);
c1 = ((ip[1] - ip[2])<<3);
d1 = ((ip[0] - ip[3])<<3);
-
+#endif
op[0] = a1 + b1;
op[2] = a1 - b1;
@@ -72,12 +78,22 @@
for (i = 0; i < 4; i++)
{
+#if !CONFIG_EXTEND_QRANGE
a1 = ((ip[0] + ip[2])<<2);
d1 = ((ip[1] + ip[3])<<2);
c1 = ((ip[1] - ip[3])<<2);
b1 = ((ip[0] - ip[2])<<2);
op[0] = a1 + d1 + (a1!=0);
+#else
+ a1 = ((ip[0] + ip[2]));
+ d1 = ((ip[1] + ip[3]));
+ c1 = ((ip[1] - ip[3]));
+ b1 = ((ip[0] - ip[2]));
+
+
+ op[0] = a1 + d1;
+#endif
op[1] = b1 + c1;
op[2] = b1 - c1;
op[3] = a1 - d1;
@@ -105,11 +121,17 @@
c2 += c2<0;
d2 += d2<0;
+#if !CONFIG_EXTEND_QRANGE
op[0] = (a2+3) >> 3;
op[4] = (b2+3) >> 3;
op[8] = (c2+3) >> 3;
op[12]= (d2+3) >> 3;
-
+#else
+ op[0] = (a2+1) >> 2;
+ op[4] = (b2+1) >> 2;
+ op[8] = (c2+1) >> 2;
+ op[12]= (d2+1) >> 2;
+#endif
ip++;
op++;
}
diff --git a/vp8/encoder/encodeframe.c b/vp8/encoder/encodeframe.c
index 0ced6e7..58e36ac 100644
--- a/vp8/encoder/encodeframe.c
+++ b/vp8/encoder/encodeframe.c
@@ -762,7 +762,7 @@
vp8_auto_select_speed(cpi);
}
- vp8_initialize_rd_consts(cpi, vp8_dc_quant(cm->base_qindex, cm->y1dc_delta_q));
+ vp8_initialize_rd_consts(cpi, cm->base_qindex + cm->y1dc_delta_q);
vp8cx_initialize_me_consts(cpi, cm->base_qindex);
// Copy data over into macro block data sturctures.
diff --git a/vp8/encoder/encodemb.c b/vp8/encoder/encodemb.c
index 30b8c45..3cd10ce 100644
--- a/vp8/encoder/encodemb.c
+++ b/vp8/encoder/encodemb.c
@@ -245,7 +245,11 @@
// TODO: experiments to find optimal multiple numbers
#define Y1_RD_MULT 4
#define UV_RD_MULT 2
+#if !CONFIG_EXTEND_QRANGE
#define Y2_RD_MULT 16
+#else
+#define Y2_RD_MULT 4
+#endif
static const int plane_rd_mult[4]=
{
diff --git a/vp8/encoder/firstpass.c b/vp8/encoder/firstpass.c
index 964e68a..0fe8549 100644
--- a/vp8/encoder/firstpass.c
+++ b/vp8/encoder/firstpass.c
@@ -602,7 +602,7 @@
//if ( 0 )
{
int flag[2] = {1, 1};
- vp8_initialize_rd_consts(cpi, vp8_dc_quant(cm->base_qindex, cm->y1dc_delta_q));
+ vp8_initialize_rd_consts(cpi, cm->base_qindex+cm->y1dc_delta_q);
vpx_memcpy(cm->fc.mvc, vp8_default_mv_context, sizeof(vp8_default_mv_context));
vp8_build_component_cost_table(cpi->mb.mvcost, cpi->mb.mvsadcost, (const MV_CONTEXT *) cm->fc.mvc, flag);
}
diff --git a/vp8/encoder/generic/csystemdependent.c b/vp8/encoder/generic/csystemdependent.c
index d9f5474..f067b39 100644
--- a/vp8/encoder/generic/csystemdependent.c
+++ b/vp8/encoder/generic/csystemdependent.c
@@ -111,4 +111,12 @@
vp8_arch_arm_encoder_init(cpi);
#endif
+#if CONFIG_EXTEND_QRANGE
+ cpi->rtcd.fdct.short4x4 = vp8_short_fdct4x4_c;
+ cpi->rtcd.fdct.short8x4 = vp8_short_fdct8x4_c;
+ cpi->rtcd.fdct.fast4x4 = vp8_short_fdct4x4_c;
+ cpi->rtcd.fdct.fast8x4 = vp8_short_fdct8x4_c;
+ cpi->rtcd.fdct.walsh_short4x4 = vp8_short_walsh4x4_c;
+#endif
+
}
diff --git a/vp8/encoder/onyx_if.c b/vp8/encoder/onyx_if.c
index f7c2c4a..6529688 100644
--- a/vp8/encoder/onyx_if.c
+++ b/vp8/encoder/onyx_if.c
@@ -150,7 +150,7 @@
extern const int qzbin_factors[129];
extern void vp8cx_init_quantizer(VP8_COMP *cpi);
extern const int vp8cx_base_skip_false_prob[128];
-
+#if !CONFIG_EXTEND_QRANGE
// Tables relating active max Q to active min Q
static const int kf_low_motion_minq[QINDEX_RANGE] =
{
@@ -218,7 +218,76 @@
71,72,73,74,75,75,76,77,78,79,80,81,82,83,84,85,
86,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100
};
+#else
+static const int kf_low_motion_minq[QINDEX_RANGE] =
+{
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3,
+ 4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8,
+ 9, 9, 9, 10,10,11,11,12,12,13,13,14,14,15,15,16,
+ 16,17,17,18,18,19,19,20,20,21,21,22,23,23,24,24,
+ 25,25,26,27,28,29,30,30,31,32,33,34,35,35,36,36,
+ 38,38,39,40,40,41,42,42,43,44,44,45,46,46,47,48,
+ 49,49,50,50,51,52,52,53,54,55,56,57,58,59,60,61,
+};
+static const int kf_high_motion_minq[QINDEX_RANGE] =
+{
+ 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 2,
+ 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6,
+ 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9,10,10,
+ 11,11,12,13,14,15,16,17,18,19,20,21,22,23,24,24,
+ 25,26,27,28,28,29,29,30,30,31,31,32,33,33,34,34,
+ 35,36,37,38,39,39,40,41,41,42,43,44,45,45,46,46,
+ 47,47,48,48,49,49,50,50,51,51,52,52,53,53,54,54,
+ 55,55,56,56,57,58,59,60,61,62,63,64,65,67,69,70,
+};
+static const int gf_low_motion_minq[QINDEX_RANGE] =
+{
+ 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4,
+ 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9,
+ 10,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,
+ 17,18,18,19,19,20,21,22,23,24,25,26,27,29,29,30,
+ 31,32,33,34,35,36,37,38,39,40,41,41,42,42,43,43,
+ 44,44,45,45,46,46,47,47,48,48,49,49,50,50,51,51,
+ 52,52,53,53,54,54,55,55,56,56,57,57,58,59,60,61,
+ 62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,
+};
+static const int gf_mid_motion_minq[QINDEX_RANGE] =
+{
+ 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4,
+ 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9,10,
+ 10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,
+ 18,19,19,20,20,21,22,23,24,25,26,27,28,29,30,31,
+ 32,33,34,35,35,36,36,37,37,38,38,39,39,40,40,41,
+ 41,42,42,43,43,44,44,45,45,46,46,47,48,49,50,51,
+ 52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,
+ 68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,
+};
+static const int gf_high_motion_minq[QINDEX_RANGE] =
+{
+ 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 4,
+ 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 8, 8, 9, 9,10,10,
+ 11,11,12,12,13,14,15,16,17,18,18,19,19,20,20,21,
+ 22,23,24,25,26,26,27,28,29,30,31,32,33,34,35,36,
+ 37,38,39,39,40,40,40,41,41,41,42,42,43,43,44,44,
+ 44,45,45,45,46,46,47,47,47,48,48,48,49,49,49,50,
+ 50,50,51,51,52,53,54,54,55,56,57,57,58,59,60,61,
+ 62,63,64,66,68,69,72,74,77,80,82,85,87,89,91,93,
+};
+
+static const int inter_minq[QINDEX_RANGE] =
+{
+ 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7,
+ 8, 9,10,11,12,13,14,15,16,17,18,18,19,19,20,21,
+ 21,22,23,23,24,25,26,26,27,28,29,30,31,32,32,33,
+ 34,35,36,36,37,38,39,40,40,41,41,42,43,44,44,45,
+ 46,46,47,47,48,49,49,50,50,51,52,52,53,54,54,55,
+ 55,56,57,57,58,59,60,60,61,62,63,63,64,65,66,67,
+ 68,68,69,70,71,72,72,73,74,75,76,77,78,79,80,81,
+ 81,82,83,84,85,86,87,88,89,90,90,91,92,93,94,95,
+};
+#endif
void vp8_initialize()
{
static int init_done = 0;
@@ -3416,6 +3485,12 @@
return code_key_frame;
}
+#if !CONFIG_EXTEND_QRANGE
+#define FIRSTPASS_QINDEX 26
+#else
+#define FIRSTPASS_QINDEX 49
+#endif
+
#if !(CONFIG_REALTIME_ONLY)
static void Pass1Encode(VP8_COMP *cpi, unsigned long *size, unsigned char *dest, unsigned int *frame_flags)
@@ -4068,6 +4143,17 @@
vp8_clear_system_state(); //__asm emms;
+#if 0
+ if (cpi->pass != 1)
+ {
+ FILE *f = fopen("q_used.stt", "a");
+ fprintf(f, "%4d, %4d, %8d\n", cpi->common.current_video_frame,
+ cpi->common.base_qindex, cpi->projected_frame_size);
+ fclose(f);
+ }
+#endif
+
+
// Test to see if the stats generated for this frame indicate that we should have coded a key frame
// (assuming that we didn't)!
if (cpi->pass != 2 && cpi->oxcf.auto_key && cm->frame_type != KEY_FRAME)
@@ -4810,10 +4896,15 @@
fclose(recon_file);
}
#endif
-
+#if 0
// DEBUG
- //vp8_write_yuv_frame("encoder_recon.yuv", cm->frame_to_show);
-
+ if(cm->current_video_frame>173 && cm->current_video_frame<178)
+ {
+ char filename[512];
+ sprintf(filename, "enc%04d.yuv", (int) cm->current_video_frame);
+ vp8_write_yuv_frame(filename, cm->frame_to_show);
+ }
+#endif
}
@@ -5383,7 +5474,15 @@
cpi->totalp_v += v2;
cpi->totalp += frame_psnr2;
cpi->total_sq_error2 += sq_error;
-
+#if 0
+ {
+ FILE *f = fopen("q_used.stt", "a");
+ fprintf(f, "%5d : Y%f7.3:U%f7.3:V%f7.3:F%f7.3:S%7.3f\n",
+ cpi->common.current_video_frame,y2, u2, v2,
+ frame_psnr2, frame_ssim2);
+ fclose(f);
+ }
+#endif
}
}
diff --git a/vp8/encoder/psnr.c b/vp8/encoder/psnr.c
index 96b0ea8..abd2ed4 100644
--- a/vp8/encoder/psnr.c
+++ b/vp8/encoder/psnr.c
@@ -13,7 +13,7 @@
#include "math.h"
#include "vp8/common/systemdependent.h" /* for vp8_clear_system_state() */
-#define MAX_PSNR 60
+#define MAX_PSNR 100
double vp8_mse2psnr(double Samples, double Peak, double Mse)
{
diff --git a/vp8/encoder/ratectrl.c b/vp8/encoder/ratectrl.c
index bfffe43..0a5f3bf 100644
--- a/vp8/encoder/ratectrl.c
+++ b/vp8/encoder/ratectrl.c
@@ -48,6 +48,7 @@
// Work in progress recalibration of baseline rate tables based on
// the assumption that bits per mb is inversely proportional to the
// quantizer value.
+#if !CONFIG_EXTEND_QRANGE
const int vp8_bits_per_mb[2][QINDEX_RANGE] =
{
// Intra case 450000/Qintra
@@ -89,10 +90,54 @@
11445, 11220, 11003, 10795, 10594, 10401, 10215, 10035,
}
};
+#else
+const int vp8_bits_per_mb[2][QINDEX_RANGE] =
+{
+ // (Updated DEC 2010) Baseline estimate of Bits Per MB at each Q:
+ // 4500000/Qintra
+ {
+ 4500000,3600000,3000000,2571428,2250000,2000000,1800000,1636363,
+ 1500000,1384615,1285714,1200000,1125000,1058823,1000000, 947368,
+ 900000, 818181, 750000, 692307, 642857, 600000, 562500, 529411,
+ 500000, 473684, 450000, 428571, 409090, 391304, 375000, 352941,
+ 333333, 315789, 300000, 285714, 272727, 260869, 250000, 236842,
+ 225000, 214285, 204545, 195652, 187500, 180000, 171428, 163636,
+ 156521, 150000, 144000, 138461, 133333, 128571, 123287, 118421,
+ 113924, 109756, 105882, 102272, 98901, 95744, 92783, 90000,
+ 87378, 84905, 82568, 80357, 77586, 75000, 72580, 70312,
+ 68181, 66176, 64285, 62500, 60810, 59210, 57692, 56250,
+ 54545, 52941, 51428, 50000, 48648, 47368, 45918, 44554,
+ 43269, 42056, 40909, 39647, 38461, 37344, 36290, 35294,
+ 34351, 33333, 32374, 31468, 30612, 29801, 28938, 28125,
+ 27355, 26627, 25862, 25139, 24456, 23809, 23195, 22613,
+ 21951, 21327, 20737, 20179, 19650, 19067, 18518, 18000,
+ 17441, 16917, 16423, 15957, 15410, 14900, 14376, 13846,
+ },
+ //2850000/Qinter
+ {
+ 2850000,2280000,1900000,1628571,1425000,1266666,1140000,1036363,
+ 950000, 876923, 814285, 760000, 712500, 670588, 633333, 600000,
+ 570000, 518181, 475000, 438461, 407142, 380000, 356250, 335294,
+ 316666, 300000, 285000, 271428, 259090, 247826, 237500, 223529,
+ 211111, 200000, 190000, 180952, 172727, 165217, 158333, 150000,
+ 142500, 135714, 129545, 123913, 118750, 114000, 108571, 103636,
+ 99130, 95000, 91200, 87692, 84444, 81428, 78082, 75000,
+ 72151, 69512, 67058, 64772, 62637, 60638, 58762, 57000,
+ 55339, 53773, 52293, 50892, 49137, 47500, 45967, 44531,
+ 43181, 41911, 40714, 39583, 38513, 37500, 36538, 35625,
+ 34545, 33529, 32571, 31666, 30810, 30000, 29081, 28217,
+ 27403, 26635, 25909, 25110, 24358, 23651, 22983, 22352,
+ 21755, 21111, 20503, 19930, 19387, 18874, 18327, 17812,
+ 17325, 16863, 16379, 15921, 15489, 15079, 14690, 14321,
+ 13902, 13507, 13133, 12780, 12445, 12076, 11728, 11400,
+ 11046, 10714, 10401, 10106, 9760, 9437, 9105, 8769,
+ }
+ };
+ #endif
const int vp8_kf_boost_qadjustment[QINDEX_RANGE] =
-{
- 128, 129, 130, 131, 132, 133, 134, 135,
+ {
+ 128, 129, 130, 131, 132, 133, 134, 135,
136, 137, 138, 139, 140, 141, 142, 143,
144, 145, 146, 147, 148, 149, 150, 151,
152, 153, 154, 155, 156, 157, 158, 159,
diff --git a/vp8/encoder/rdopt.c b/vp8/encoder/rdopt.c
index 8aaca09..3db0515 100644
--- a/vp8/encoder/rdopt.c
+++ b/vp8/encoder/rdopt.c
@@ -160,6 +160,48 @@
0, 0, 0, 0, 0, 0, 0, 0,
};
+// 3* dc_qlookup[Q]*dc_qlookup[Q];
+#if !CONFIG_EXTEND_QRANGE
+static int rdmult_lut[QINDEX_RANGE]=
+{
+ 48,75,108,147,192,243,300,300,
+ 363,432,507,588,675,768,867,867,
+ 972,1083,1200,1200,1323,1323,1452,1452,
+ 1587,1587,1728,1875,1875,2028,2187,2352,
+ 2523,2700,2883,3072,3267,3468,3675,3888,
+ 4107,4107,4332,4563,4800,5043,5292,5547,
+ 5808,6075,6348,6348,6627,6912,7203,7500,
+ 7803,8112,8427,8748,9075,9408,9747,10092,
+ 10443,10800,11163,11532,11907,12288,12675,13068,
+ 13467,13872,14283,14700,15123,15552,15987,16428,
+ 16875,17328,17328,17787,18252,18723,19200,19683,
+ 20172,20667,21168,21675,22188,22707,23232,23763,
+ 24843,25947,27075,27648,28812,30000,30603,31212,
+ 32448,33708,34992,36300,37632,38988,40368,41772,
+ 44652,46128,47628,49152,50700,52272,53868,55488,
+ 57132,58800,61347,63075,65712,68403,71148,73947,
+};
+#else
+static int rdmult_lut[QINDEX_RANGE]=
+{
+ 3,5,7,9,12,15,19,23,
+ 27,32,37,42,48,54,61,68,
+ 75,83,91,99,108,117,127,137,
+ 147,169,192,217,243,271,300,331,
+ 363,397,450,507,567,631,698,768,
+ 842,919,999,1083,1170,1261,1355,1452,
+ 1587,1728,1875,2028,2187,2352,2523,2700,
+ 2883,3072,3267,3468,3675,3888,4107,4332,
+ 4563,4800,5043,5292,5547,5808,6075,6348,
+ 6627,6912,7203,7500,7880,8269,8667,9075,
+ 9492,9919,10355,10800,11255,11719,12192,12675,
+ 13167,13669,14180,14700,15230,15769,16317,16875,
+ 18019,19200,20419,21675,22969,24300,25669,27075,
+ 28519,30000,31519,33075,34669,36300,37969,39675,
+ 41772,43923,46128,48387,50700,53067,55488,57963,
+ 61347,64827,69312,73947,78732,83667,89787,97200,
+};
+#endif
/* values are now correlated to quantizer */
static int sad_per_bit16lut[QINDEX_RANGE] =
@@ -207,12 +249,16 @@
cpi->mb.sadperbit4 = sad_per_bit4lut[QIndex];
}
-void vp8_initialize_rd_consts(VP8_COMP *cpi, int Qvalue)
+
+
+
+
+void vp8_initialize_rd_consts(VP8_COMP *cpi, int QIndex)
{
int q;
int i;
- double capped_q = (Qvalue < 160) ? (double)Qvalue : 160.0;
- double rdconst = 3.00;
+ int *thresh;
+ int threshmult;
vp8_clear_system_state(); //__asm emms;
@@ -220,7 +266,8 @@
// for key frames, golden frames and arf frames.
// if (cpi->common.refresh_golden_frame ||
// cpi->common.refresh_alt_ref_frame)
- cpi->RDMULT = (int)(rdconst * (capped_q * capped_q));
+ QIndex=(QIndex<0)? 0 : ((QIndex>127)?127 : QIndex);
+ cpi->RDMULT = rdmult_lut[QIndex];
// Extend rate multiplier along side quantizer zbin increases
if (cpi->zbin_over_quant > 0)
@@ -231,8 +278,7 @@
// Experimental code using the same basic equation as used for Q above
// The units of cpi->zbin_over_quant are 1/128 of Q bin size
oq_factor = 1.0 + ((double)0.0015625 * cpi->zbin_over_quant);
- modq = (int)((double)capped_q * oq_factor);
- cpi->RDMULT = (int)(rdconst * (modq * modq));
+ cpi->RDMULT = (int)((double)cpi->RDMULT * oq_factor * oq_factor);
}
if (cpi->pass == 2 && (cpi->common.frame_type != KEY_FRAME))
@@ -243,19 +289,34 @@
cpi->RDMULT += (cpi->RDMULT * rd_iifactor[cpi->next_iiratio]) >> 4;
}
+#if !CONFIG_EXTEND_QRANGE
+#else
+ if (cpi->RDMULT < 7)
+ cpi->RDMULT = 7;
+#endif
cpi->mb.errorperbit = (cpi->RDMULT / 100);
cpi->mb.errorperbit += (cpi->mb.errorperbit==0);
+#if CONFIG_EXTEND_QRANGE
+ if(cpi->mb.errorperbit<1)
+ cpi->mb.errorperbit=1;
+#endif
vp8_set_speed_features(cpi);
if (cpi->common.simpler_lpf)
cpi->common.filter_type = SIMPLE_LOOPFILTER;
- q = (int)pow(Qvalue, 1.25);
+ q = (int)pow(vp8_dc_quant(QIndex,0), 1.25);
if (q < 8)
q = 8;
+
+
+#if CONFIG_EXTEND_QRANGE
+ cpi->RDMULT *= 16;
+#endif
+
if (cpi->RDMULT > 1000)
{
cpi->RDDIV = 1;
@@ -999,6 +1060,10 @@
return distortion;
}
+#if CONFIG_EXTEND_QRANGE
+ d += ENCODEMB_INVOKE(rtcd, berr)(mb_y2->coeff, x_y2->dqcoeff)<<2;
+#else
+#endif
unsigned char vp8_mbsplit_offset2[4][16] = {
{ 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{ 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
diff --git a/vp8/vp8_cx_iface.c b/vp8/vp8_cx_iface.c
index f182b4f..eb568e1 100644
--- a/vp8/vp8_cx_iface.c
+++ b/vp8/vp8_cx_iface.c
@@ -37,6 +37,7 @@
unsigned int arnr_max_frames; /* alt_ref Noise Reduction Max Frame Count */
unsigned int arnr_strength; /* alt_ref Noise Reduction Strength */
unsigned int arnr_type; /* alt_ref filter type */
+ unsigned int experimental;
vp8e_tuning tuning;
unsigned int cq_level; /* constrained quality level */
@@ -69,6 +70,7 @@
0, /* arnr_max_frames */
3, /* arnr_strength */
3, /* arnr_type*/
+ 0, /* experimental mode */
0, /* tuning*/
10, /* cq_level */
}
@@ -250,7 +252,8 @@
struct vp8_extracfg vp8_cfg)
{
oxcf->multi_threaded = cfg.g_threads;
- oxcf->Version = cfg.g_profile;
+ oxcf->Version = cfg.g_profile;
+ oxcf->Version |= vp8_cfg.experimental? 0x4 : 0;
oxcf->Width = cfg.g_w;
oxcf->Height = cfg.g_h;
@@ -479,7 +482,10 @@
return res;
#undef MAP
}
-static vpx_codec_err_t vp8e_init(vpx_codec_ctx_t *ctx)
+
+
+static vpx_codec_err_t vp8e_common_init(vpx_codec_ctx_t *ctx,
+ int experimental)
{
vpx_codec_err_t res = VPX_DEC_OK;
struct vpx_codec_alg_priv *priv;
@@ -521,6 +527,7 @@
priv->vp8_cfg = extracfg_map[i].cfg;
priv->vp8_cfg.pkt_list = &priv->pkt_list.head;
+ priv->vp8_cfg.experimental = experimental;
priv->cx_data_sz = priv->cfg.g_w * priv->cfg.g_h * 3 / 2 * 2;
@@ -549,6 +556,21 @@
return res;
}
+
+static vpx_codec_err_t vp8e_init(vpx_codec_ctx_t *ctx)
+{
+ return vp8e_common_init(ctx, 0);
+}
+
+
+#if CONFIG_EXPERIMENTAL
+static vpx_codec_err_t vp8e_exp_init(vpx_codec_ctx_t *ctx)
+{
+ return vp8e_common_init(ctx, 1);
+}
+#endif
+
+
static vpx_codec_err_t vp8e_destroy(vpx_codec_alg_priv_t *ctx)
{
@@ -1137,6 +1159,36 @@
};
+#if CONFIG_EXPERIMENTAL
+vpx_codec_iface_t vpx_codec_vp8x_cx_algo =
+{
+ "VP8 Experimental Encoder" VERSION_STRING,
+ VPX_CODEC_INTERNAL_ABI_VERSION,
+ VPX_CODEC_CAP_ENCODER | VPX_CODEC_CAP_PSNR,
+ /* vpx_codec_caps_t caps; */
+ vp8e_exp_init, /* vpx_codec_init_fn_t init; */
+ vp8e_destroy, /* vpx_codec_destroy_fn_t destroy; */
+ vp8e_ctf_maps, /* vpx_codec_ctrl_fn_map_t *ctrl_maps; */
+ NOT_IMPLEMENTED, /* vpx_codec_get_mmap_fn_t get_mmap; */
+ NOT_IMPLEMENTED, /* vpx_codec_set_mmap_fn_t set_mmap; */
+ {
+ NOT_IMPLEMENTED, /* vpx_codec_peek_si_fn_t peek_si; */
+ NOT_IMPLEMENTED, /* vpx_codec_get_si_fn_t get_si; */
+ NOT_IMPLEMENTED, /* vpx_codec_decode_fn_t decode; */
+ NOT_IMPLEMENTED, /* vpx_codec_frame_get_fn_t frame_get; */
+ },
+ {
+ vp8e_usage_cfg_map, /* vpx_codec_enc_cfg_map_t peek_si; */
+ vp8e_encode, /* vpx_codec_encode_fn_t encode; */
+ vp8e_get_cxdata, /* vpx_codec_get_cx_data_fn_t frame_get; */
+ vp8e_set_config,
+ NOT_IMPLEMENTED,
+ vp8e_get_preview,
+ } /* encoder functions */
+};
+#endif
+
+
/*
* BEGIN BACKWARDS COMPATIBILITY SHIM.
*/
diff --git a/vpx/vp8cx.h b/vpx/vp8cx.h
index 8e07547..5da4fe2 100644
--- a/vpx/vp8cx.h
+++ b/vpx/vp8cx.h
@@ -33,6 +33,16 @@
extern vpx_codec_iface_t* vpx_codec_vp8_cx(void);
+#if CONFIG_EXPERIMENTAL
+/*!\brief Algorithm interface for VP8 experimental branch
+ *
+ * This interface provides the ability to encode using the "experimental"
+ * VP8 variant, which is bitstream incompatible with the default VP8 encoder.
+ */
+extern vpx_codec_iface_t vpx_codec_vp8x_cx_algo;
+#endif
+
+
/*
* Algorithm Flags
*/
