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Import aom library

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This is the reference implementation for the Alliance for Open Media's av1 video code.

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.
This commit is contained in:
trav90 2018-10-15 21:45:30 -05:00 • committed by Roy Tam
commit edc8d83307
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34
third_party/aom/aom_scale/aom_scale.cmake vendored Normal file
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##
## Copyright (c) 2017, 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.
##
set(AOM_SCALE_SOURCES
"${AOM_ROOT}/aom_scale/aom_scale.h"
"${AOM_ROOT}/aom_scale/generic/aom_scale.c"
"${AOM_ROOT}/aom_scale/generic/gen_scalers.c"
"${AOM_ROOT}/aom_scale/generic/yv12config.c"
"${AOM_ROOT}/aom_scale/generic/yv12extend.c"
"${AOM_ROOT}/aom_scale/yv12config.h")
set(AOM_SCALE_INTRIN_DSPR2
"${AOM_ROOT}/aom_scale/mips/dspr2/yv12extend_dspr2.c")
# Creates the aom_scale build target and makes libaom depend on it. The libaom
# target must exist before this function is called.
function (setup_aom_scale_targets)
add_library(aom_scale OBJECT ${AOM_SCALE_SOURCES})
target_sources(aom PUBLIC $<TARGET_OBJECTS:aom_scale>)
if (HAVE_DSPR2)
add_intrinsics_object_library("" "dspr2" "aom_scale"
"AOM_SCALE_INTRIN_DSPR2")
endif ()
set(AOM_LIB_TARGETS ${AOM_LIB_TARGETS} aom_scale PARENT_SCOPE)
endfunction ()

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third_party/aom/aom_scale/aom_scale.h vendored Normal file
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/*
* 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_SCALE_AOM_SCALE_H_
#define AOM_SCALE_AOM_SCALE_H_
#include "aom_scale/yv12config.h"
extern void aom_scale_frame(YV12_BUFFER_CONFIG *src, YV12_BUFFER_CONFIG *dst,
unsigned char *temp_area, unsigned char temp_height,
unsigned int hscale, unsigned int hratio,
unsigned int vscale, unsigned int vratio,
unsigned int interlaced);
#endif // AOM_SCALE_AOM_SCALE_H_

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SCALE_SRCS-yes += aom_scale.mk
SCALE_SRCS-yes += yv12config.h
SCALE_SRCS-$(CONFIG_SPATIAL_RESAMPLING) += aom_scale.h
SCALE_SRCS-$(CONFIG_SPATIAL_RESAMPLING) += generic/aom_scale.c
SCALE_SRCS-yes += generic/yv12config.c
SCALE_SRCS-yes += generic/yv12extend.c
SCALE_SRCS-$(CONFIG_SPATIAL_RESAMPLING) += generic/gen_scalers.c
SCALE_SRCS-yes += aom_scale_rtcd.c
SCALE_SRCS-yes += aom_scale_rtcd.pl
#mips(dspr2)
SCALE_SRCS-$(HAVE_DSPR2) += mips/dspr2/yv12extend_dspr2.c
SCALE_SRCS-no += $(SCALE_SRCS_REMOVE-yes)
$(eval $(call rtcd_h_template,aom_scale_rtcd,aom_scale/aom_scale_rtcd.pl))

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third_party/aom/aom_scale/aom_scale_rtcd.c vendored Normal file
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/*
* 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.
*/
#include "./aom_config.h"
#define RTCD_C
#include "./aom_scale_rtcd.h"
#include "aom_ports/aom_once.h"
void aom_scale_rtcd() { once(setup_rtcd_internal); }

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sub aom_scale_forward_decls() {
print <<EOF
struct yv12_buffer_config;
EOF
}
forward_decls qw/aom_scale_forward_decls/;
# Scaler functions
if (aom_config("CONFIG_SPATIAL_RESAMPLING") eq "yes") {
add_proto qw/void aom_horizontal_line_5_4_scale/, "const unsigned char *source, unsigned int source_width, unsigned char *dest, unsigned int dest_width";
add_proto qw/void aom_vertical_band_5_4_scale/, "unsigned char *source, int src_pitch, unsigned char *dest, int dest_pitch, unsigned int dest_width";
add_proto qw/void aom_horizontal_line_5_3_scale/, "const unsigned char *source, unsigned int source_width, unsigned char *dest, unsigned int dest_width";
add_proto qw/void aom_vertical_band_5_3_scale/, "unsigned char *source, int src_pitch, unsigned char *dest, int dest_pitch, unsigned int dest_width";
add_proto qw/void aom_horizontal_line_2_1_scale/, "const unsigned char *source, unsigned int source_width, unsigned char *dest, unsigned int dest_width";
add_proto qw/void aom_vertical_band_2_1_scale/, "unsigned char *source, int src_pitch, unsigned char *dest, int dest_pitch, unsigned int dest_width";
add_proto qw/void aom_vertical_band_2_1_scale_i/, "unsigned char *source, int src_pitch, unsigned char *dest, int dest_pitch, unsigned int dest_width";
}
add_proto qw/void aom_yv12_extend_frame_borders/, "struct yv12_buffer_config *ybf";
add_proto qw/void aom_yv12_copy_frame/, "const struct yv12_buffer_config *src_bc, struct yv12_buffer_config *dst_bc";
add_proto qw/void aom_yv12_copy_y/, "const struct yv12_buffer_config *src_ybc, struct yv12_buffer_config *dst_ybc";
add_proto qw/void aom_yv12_copy_u/, "const struct yv12_buffer_config *src_bc, struct yv12_buffer_config *dst_bc";
add_proto qw/void aom_yv12_copy_v/, "const struct yv12_buffer_config *src_bc, struct yv12_buffer_config *dst_bc";
if (aom_config("CONFIG_AV1") eq "yes") {
add_proto qw/void aom_extend_frame_borders/, "struct yv12_buffer_config *ybf";
specialize qw/aom_extend_frame_borders dspr2/;
add_proto qw/void aom_extend_frame_inner_borders/, "struct yv12_buffer_config *ybf";
specialize qw/aom_extend_frame_inner_borders dspr2/;
add_proto qw/void aom_extend_frame_borders_y/, "struct yv12_buffer_config *ybf";
}
1;

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/*
* 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.
*/
/****************************************************************************
*
* Module Title : scale.c
*
* Description : Image scaling functions.
*
***************************************************************************/
/****************************************************************************
* Header Files
****************************************************************************/
#include "./aom_scale_rtcd.h"
#include "aom_mem/aom_mem.h"
#include "aom_scale/aom_scale.h"
#include "aom_scale/yv12config.h"
typedef struct {
int expanded_frame_width;
int expanded_frame_height;
int HScale;
int HRatio;
int VScale;
int VRatio;
YV12_BUFFER_CONFIG *src_yuv_config;
YV12_BUFFER_CONFIG *dst_yuv_config;
} SCALE_VARS;
/****************************************************************************
*
* ROUTINE : scale1d_2t1_i
*
* INPUTS : const unsigned char *source : Pointer to data to be scaled.
* int source_step : Number of pixels to step on
* in source.
* unsigned int source_scale : Scale for source (UNUSED).
* unsigned int source_length : Length of source (UNUSED).
* unsigned char *dest : Pointer to output data array.
* int dest_step : Number of pixels to step on
* in destination.
* unsigned int dest_scale : Scale for destination
* (UNUSED).
* unsigned int dest_length : Length of destination.
*
* OUTPUTS : None.
*
* RETURNS : void
*
* FUNCTION : Performs 2-to-1 interpolated scaling.
*
* SPECIAL NOTES : None.
*
****************************************************************************/
static void scale1d_2t1_i(const unsigned char *source, int source_step,
unsigned int source_scale, unsigned int source_length,
unsigned char *dest, int dest_step,
unsigned int dest_scale, unsigned int dest_length) {
const unsigned char *const dest_end = dest + dest_length * dest_step;
(void)source_length;
(void)source_scale;
(void)dest_scale;
source_step *= 2; // Every other row.
dest[0] = source[0]; // Special case: 1st pixel.
source += source_step;
dest += dest_step;
while (dest < dest_end) {
const unsigned int a = 3 * source[-source_step];
const unsigned int b = 10 * source[0];
const unsigned int c = 3 * source[source_step];
*dest = (unsigned char)((8 + a + b + c) >> 4);
source += source_step;
dest += dest_step;
}
}
/****************************************************************************
*
* ROUTINE : scale1d_2t1_ps
*
* INPUTS : const unsigned char *source : Pointer to data to be scaled.
* int source_step : Number of pixels to step on
* in source.
* unsigned int source_scale : Scale for source (UNUSED).
* unsigned int source_length : Length of source (UNUSED).
* unsigned char *dest : Pointer to output data array.
* int dest_step : Number of pixels to step on
* in destination.
* unsigned int dest_scale : Scale for destination
* (UNUSED).
* unsigned int dest_length : Length of destination.
*
* OUTPUTS : None.
*
* RETURNS : void
*
* FUNCTION : Performs 2-to-1 point subsampled scaling.
*
* SPECIAL NOTES : None.
*
****************************************************************************/
static void scale1d_2t1_ps(const unsigned char *source, int source_step,
unsigned int source_scale,
unsigned int source_length, unsigned char *dest,
int dest_step, unsigned int dest_scale,
unsigned int dest_length) {
const unsigned char *const dest_end = dest + dest_length * dest_step;
(void)source_length;
(void)source_scale;
(void)dest_scale;
source_step *= 2; // Every other row.
while (dest < dest_end) {
*dest = *source;
source += source_step;
dest += dest_step;
}
}
/****************************************************************************
*
* ROUTINE : scale1d_c
*
* INPUTS : const unsigned char *source : Pointer to data to be scaled.
* int source_step : Number of pixels to step on
* in source.
* unsigned int source_scale : Scale for source.
* unsigned int source_length : Length of source (UNUSED).
* unsigned char *dest : Pointer to output data array.
* int dest_step : Number of pixels to step on
* in destination.
* unsigned int dest_scale : Scale for destination.
* unsigned int dest_length : Length of destination.
*
* OUTPUTS : None.
*
* RETURNS : void
*
* FUNCTION : Performs linear interpolation in one dimension.
*
* SPECIAL NOTES : None.
*
****************************************************************************/
static void scale1d_c(const unsigned char *source, int source_step,
unsigned int source_scale, unsigned int source_length,
unsigned char *dest, int dest_step,
unsigned int dest_scale, unsigned int dest_length) {
const unsigned char *const dest_end = dest + dest_length * dest_step;
const unsigned int round_value = dest_scale / 2;
unsigned int left_modifier = dest_scale;
unsigned int right_modifier = 0;
unsigned char left_pixel = source[0];
unsigned char right_pixel = source[source_step];
(void)source_length;
/* These asserts are needed if there are boundary issues... */
/* assert ( dest_scale > source_scale );*/
/* assert ( (source_length - 1) * dest_scale >= (dest_length - 1) *
* source_scale);*/
while (dest < dest_end) {
*dest = (unsigned char)((left_modifier * left_pixel +
right_modifier * right_pixel + round_value) /
dest_scale);
right_modifier += source_scale;
while (right_modifier > dest_scale) {
right_modifier -= dest_scale;
source += source_step;
left_pixel = source[0];
right_pixel = source[source_step];
}
left_modifier = dest_scale - right_modifier;
}
}
/****************************************************************************
*
* ROUTINE : Scale2D
*
* INPUTS : const unsigned char *source : Pointer to data to be
* scaled.
* int source_pitch : Stride of source image.
* unsigned int source_width : Width of input image.
* unsigned int source_height : Height of input image.
* unsigned char *dest : Pointer to output data
* array.
* int dest_pitch : Stride of destination
* image.
* unsigned int dest_width : Width of destination image.
* unsigned int dest_height : Height of destination
* image.
* unsigned char *temp_area : Pointer to temp work area.
* unsigned char temp_area_height : Height of temp work area.
* unsigned int hscale : Horizontal scale factor
* numerator.
* unsigned int hratio : Horizontal scale factor
* denominator.
* unsigned int vscale : Vertical scale factor
* numerator.
* unsigned int vratio : Vertical scale factor
* denominator.
* unsigned int interlaced : Interlace flag.
*
* OUTPUTS : None.
*
* RETURNS : void
*
* FUNCTION : Performs 2-tap linear interpolation in two dimensions.
*
* SPECIAL NOTES : Expansion is performed one band at a time to help with
* caching.
*
****************************************************************************/
static void Scale2D(
/*const*/
unsigned char *source, int source_pitch, unsigned int source_width,
unsigned int source_height, unsigned char *dest, int dest_pitch,
unsigned int dest_width, unsigned int dest_height, unsigned char *temp_area,
unsigned char temp_area_height, unsigned int hscale, unsigned int hratio,
unsigned int vscale, unsigned int vratio, unsigned int interlaced) {
unsigned int i, j, k;
unsigned int bands;
unsigned int dest_band_height;
unsigned int source_band_height;
typedef void (*Scale1D)(const unsigned char *source, int source_step,
unsigned int source_scale, unsigned int source_length,
unsigned char *dest, int dest_step,
unsigned int dest_scale, unsigned int dest_length);
Scale1D Scale1Dv = scale1d_c;
Scale1D Scale1Dh = scale1d_c;
void (*horiz_line_scale)(const unsigned char *, unsigned int, unsigned char *,
unsigned int) = NULL;
void (*vert_band_scale)(unsigned char *, int, unsigned char *, int,
unsigned int) = NULL;
int ratio_scalable = 1;
int interpolation = 0;
unsigned char *source_base;
unsigned char *line_src;
source_base = (unsigned char *)source;
if (source_pitch < 0) {
int offset;
offset = (source_height - 1);
offset *= source_pitch;
source_base += offset;
}
/* find out the ratio for each direction */
switch (hratio * 10 / hscale) {
case 8:
/* 4-5 Scale in Width direction */
horiz_line_scale = aom_horizontal_line_5_4_scale;
break;
case 6:
/* 3-5 Scale in Width direction */
horiz_line_scale = aom_horizontal_line_5_3_scale;
break;
case 5:
/* 1-2 Scale in Width direction */
horiz_line_scale = aom_horizontal_line_2_1_scale;
break;
default:
/* The ratio is not acceptable now */
/* throw("The ratio is not acceptable for now!"); */
ratio_scalable = 0;
break;
}
switch (vratio * 10 / vscale) {
case 8:
/* 4-5 Scale in vertical direction */
vert_band_scale = aom_vertical_band_5_4_scale;
source_band_height = 5;
dest_band_height = 4;
break;
case 6:
/* 3-5 Scale in vertical direction */
vert_band_scale = aom_vertical_band_5_3_scale;
source_band_height = 5;
dest_band_height = 3;
break;
case 5:
/* 1-2 Scale in vertical direction */
if (interlaced) {
/* if the content is interlaced, point sampling is used */
vert_band_scale = aom_vertical_band_2_1_scale;
} else {
interpolation = 1;
/* if the content is progressive, interplo */
vert_band_scale = aom_vertical_band_2_1_scale_i;
}
source_band_height = 2;
dest_band_height = 1;
break;
default:
/* The ratio is not acceptable now */
/* throw("The ratio is not acceptable for now!"); */
ratio_scalable = 0;
break;
}
if (ratio_scalable) {
if (source_height == dest_height) {
/* for each band of the image */
for (k = 0; k < dest_height; ++k) {
horiz_line_scale(source, source_width, dest, dest_width);
source += source_pitch;
dest += dest_pitch;
}
return;
}
if (interpolation) {
if (source < source_base) source = source_base;
horiz_line_scale(source, source_width, temp_area, dest_width);
}
for (k = 0; k < (dest_height + dest_band_height - 1) / dest_band_height;
++k) {
/* scale one band horizontally */
for (i = 0; i < source_band_height; ++i) {
/* Trap case where we could read off the base of the source buffer */
line_src = source + i * source_pitch;
if (line_src < source_base) line_src = source_base;
horiz_line_scale(line_src, source_width,
temp_area + (i + 1) * dest_pitch, dest_width);
}
/* Vertical scaling is in place */
vert_band_scale(temp_area + dest_pitch, dest_pitch, dest, dest_pitch,
dest_width);
if (interpolation)
memcpy(temp_area, temp_area + source_band_height * dest_pitch,
dest_width);
/* Next band... */
source += (unsigned long)source_band_height * source_pitch;
dest += (unsigned long)dest_band_height * dest_pitch;
}
return;
}
if (hscale == 2 && hratio == 1) Scale1Dh = scale1d_2t1_ps;
if (vscale == 2 && vratio == 1) {
if (interlaced)
Scale1Dv = scale1d_2t1_ps;
else
Scale1Dv = scale1d_2t1_i;
}
if (source_height == dest_height) {
/* for each band of the image */
for (k = 0; k < dest_height; ++k) {
Scale1Dh(source, 1, hscale, source_width + 1, dest, 1, hratio,
dest_width);
source += source_pitch;
dest += dest_pitch;
}
return;
}
if (dest_height > source_height) {
dest_band_height = temp_area_height - 1;
source_band_height = dest_band_height * source_height / dest_height;
} else {
source_band_height = temp_area_height - 1;
dest_band_height = source_band_height * vratio / vscale;
}
/* first row needs to be done so that we can stay one row ahead for vertical
* zoom */
Scale1Dh(source, 1, hscale, source_width + 1, temp_area, 1, hratio,
dest_width);
/* for each band of the image */
bands = (dest_height + dest_band_height - 1) / dest_band_height;
for (k = 0; k < bands; ++k) {
/* scale one band horizontally */
for (i = 1; i < source_band_height + 1; ++i) {
if (k * source_band_height + i < source_height) {
Scale1Dh(source + i * source_pitch, 1, hscale, source_width + 1,
temp_area + i * dest_pitch, 1, hratio, dest_width);
} else { /* Duplicate the last row */
/* copy temp_area row 0 over from last row in the past */
memcpy(temp_area + i * dest_pitch, temp_area + (i - 1) * dest_pitch,
dest_pitch);
}
}
/* scale one band vertically */
for (j = 0; j < dest_width; ++j) {
Scale1Dv(&temp_area[j], dest_pitch, vscale, source_band_height + 1,
&dest[j], dest_pitch, vratio, dest_band_height);
}
/* copy temp_area row 0 over from last row in the past */
memcpy(temp_area, temp_area + source_band_height * dest_pitch, dest_pitch);
/* move to the next band */
source += source_band_height * source_pitch;
dest += dest_band_height * dest_pitch;
}
}
/****************************************************************************
*
* ROUTINE : aom_scale_frame
*
* INPUTS : YV12_BUFFER_CONFIG *src : Pointer to frame to be
* scaled.
* YV12_BUFFER_CONFIG *dst : Pointer to buffer to hold
* scaled frame.
* unsigned char *temp_area : Pointer to temp work area.
* unsigned char temp_area_height : Height of temp work area.
* unsigned int hscale : Horizontal scale factor
* numerator.
* unsigned int hratio : Horizontal scale factor
* denominator.
* unsigned int vscale : Vertical scale factor
* numerator.
* unsigned int vratio : Vertical scale factor
* denominator.
* unsigned int interlaced : Interlace flag.
*
* OUTPUTS : None.
*
* RETURNS : void
*
* FUNCTION : Performs 2-tap linear interpolation in two dimensions.
*
* SPECIAL NOTES : Expansion is performed one band at a time to help with
* caching.
*
****************************************************************************/
void aom_scale_frame(YV12_BUFFER_CONFIG *src, YV12_BUFFER_CONFIG *dst,
unsigned char *temp_area, unsigned char temp_height,
unsigned int hscale, unsigned int hratio,
unsigned int vscale, unsigned int vratio,
unsigned int interlaced) {
int i;
int dw = (hscale - 1 + src->y_width * hratio) / hscale;
int dh = (vscale - 1 + src->y_height * vratio) / vscale;
/* call our internal scaling routines!! */
Scale2D((unsigned char *)src->y_buffer, src->y_stride, src->y_width,
src->y_height, (unsigned char *)dst->y_buffer, dst->y_stride, dw, dh,
temp_area, temp_height, hscale, hratio, vscale, vratio, interlaced);
if (dw < (int)dst->y_width)
for (i = 0; i < dh; ++i)
memset(dst->y_buffer + i * dst->y_stride + dw - 1,
dst->y_buffer[i * dst->y_stride + dw - 2], dst->y_width - dw + 1);
if (dh < (int)dst->y_height)
for (i = dh - 1; i < (int)dst->y_height; ++i)
memcpy(dst->y_buffer + i * dst->y_stride,
dst->y_buffer + (dh - 2) * dst->y_stride, dst->y_width + 1);
Scale2D((unsigned char *)src->u_buffer, src->uv_stride, src->uv_width,
src->uv_height, (unsigned char *)dst->u_buffer, dst->uv_stride,
dw / 2, dh / 2, temp_area, temp_height, hscale, hratio, vscale,
vratio, interlaced);
if (dw / 2 < (int)dst->uv_width)
for (i = 0; i < dst->uv_height; ++i)
memset(dst->u_buffer + i * dst->uv_stride + dw / 2 - 1,
dst->u_buffer[i * dst->uv_stride + dw / 2 - 2],
dst->uv_width - dw / 2 + 1);
if (dh / 2 < (int)dst->uv_height)
for (i = dh / 2 - 1; i < (int)dst->y_height / 2; ++i)
memcpy(dst->u_buffer + i * dst->uv_stride,
dst->u_buffer + (dh / 2 - 2) * dst->uv_stride, dst->uv_width);
Scale2D((unsigned char *)src->v_buffer, src->uv_stride, src->uv_width,
src->uv_height, (unsigned char *)dst->v_buffer, dst->uv_stride,
dw / 2, dh / 2, temp_area, temp_height, hscale, hratio, vscale,
vratio, interlaced);
if (dw / 2 < (int)dst->uv_width)
for (i = 0; i < dst->uv_height; ++i)
memset(dst->v_buffer + i * dst->uv_stride + dw / 2 - 1,
dst->v_buffer[i * dst->uv_stride + dw / 2 - 2],
dst->uv_width - dw / 2 + 1);
if (dh / 2 < (int)dst->uv_height)
for (i = dh / 2 - 1; i < (int)dst->y_height / 2; ++i)
memcpy(dst->v_buffer + i * dst->uv_stride,
dst->v_buffer + (dh / 2 - 2) * dst->uv_stride, dst->uv_width);
}

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/*
* 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.
*/
#include "./aom_scale_rtcd.h"
#include "aom_scale/aom_scale.h"
#include "aom_mem/aom_mem.h"
/****************************************************************************
* Imports
****************************************************************************/
/****************************************************************************
*
*
* INPUTS : const unsigned char *source : Pointer to source data.
* unsigned int source_width : Stride of source.
* unsigned char *dest : Pointer to destination data.
* unsigned int dest_width : Stride of destination
* (NOT USED).
*
* OUTPUTS : None.
*
* RETURNS : void
*
* FUNCTION : Copies horizontal line of pixels from source to
* destination scaling up by 4 to 5.
*
* SPECIAL NOTES : None.
*
****************************************************************************/
void aom_horizontal_line_5_4_scale_c(const unsigned char *source,
unsigned int source_width,
unsigned char *dest,
unsigned int dest_width) {
const unsigned char *const source_end = source + source_width;
(void)dest_width;
while (source < source_end) {
const unsigned int a = source[0];
const unsigned int b = source[1];
const unsigned int c = source[2];
const unsigned int d = source[3];
const unsigned int e = source[4];
dest[0] = (unsigned char)a;
dest[1] = (unsigned char)((b * 192 + c * 64 + 128) >> 8);
dest[2] = (unsigned char)((c * 128 + d * 128 + 128) >> 8);
dest[3] = (unsigned char)((d * 64 + e * 192 + 128) >> 8);
source += 5;
dest += 4;
}
}
void aom_vertical_band_5_4_scale_c(unsigned char *source, int src_pitch,
unsigned char *dest, int dest_pitch,
unsigned int dest_width) {
const unsigned char *const dest_end = dest + dest_width;
while (dest < dest_end) {
const unsigned int a = source[0 * src_pitch];
const unsigned int b = source[1 * src_pitch];
const unsigned int c = source[2 * src_pitch];
const unsigned int d = source[3 * src_pitch];
const unsigned int e = source[4 * src_pitch];
dest[0 * dest_pitch] = (unsigned char)a;
dest[1 * dest_pitch] = (unsigned char)((b * 192 + c * 64 + 128) >> 8);
dest[2 * dest_pitch] = (unsigned char)((c * 128 + d * 128 + 128) >> 8);
dest[3 * dest_pitch] = (unsigned char)((d * 64 + e * 192 + 128) >> 8);
++source;
++dest;
}
}
/*7***************************************************************************
*
* ROUTINE : aom_horizontal_line_3_5_scale_c
*
* INPUTS : const unsigned char *source : Pointer to source data.
* unsigned int source_width : Stride of source.
* unsigned char *dest : Pointer to destination data.
* unsigned int dest_width : Stride of destination
* (NOT USED).
*
* OUTPUTS : None.
*
* RETURNS : void
*
* FUNCTION : Copies horizontal line of pixels from source to
* destination scaling up by 3 to 5.
*
* SPECIAL NOTES : None.
*
*
****************************************************************************/
void aom_horizontal_line_5_3_scale_c(const unsigned char *source,
unsigned int source_width,
unsigned char *dest,
unsigned int dest_width) {
const unsigned char *const source_end = source + source_width;
(void)dest_width;
while (source < source_end) {
const unsigned int a = source[0];
const unsigned int b = source[1];
const unsigned int c = source[2];
const unsigned int d = source[3];
const unsigned int e = source[4];
dest[0] = (unsigned char)a;
dest[1] = (unsigned char)((b * 85 + c * 171 + 128) >> 8);
dest[2] = (unsigned char)((d * 171 + e * 85 + 128) >> 8);
source += 5;
dest += 3;
}
}
void aom_vertical_band_5_3_scale_c(unsigned char *source, int src_pitch,
unsigned char *dest, int dest_pitch,
unsigned int dest_width) {
const unsigned char *const dest_end = dest + dest_width;
while (dest < dest_end) {
const unsigned int a = source[0 * src_pitch];
const unsigned int b = source[1 * src_pitch];
const unsigned int c = source[2 * src_pitch];
const unsigned int d = source[3 * src_pitch];
const unsigned int e = source[4 * src_pitch];
dest[0 * dest_pitch] = (unsigned char)a;
dest[1 * dest_pitch] = (unsigned char)((b * 85 + c * 171 + 128) >> 8);
dest[2 * dest_pitch] = (unsigned char)((d * 171 + e * 85 + 128) >> 8);
++source;
++dest;
}
}
/****************************************************************************
*
* ROUTINE : aom_horizontal_line_1_2_scale_c
*
* INPUTS : const unsigned char *source : Pointer to source data.
* unsigned int source_width : Stride of source.
* unsigned char *dest : Pointer to destination data.
* unsigned int dest_width : Stride of destination
* (NOT USED).
*
* OUTPUTS : None.
*
* RETURNS : void
*
* FUNCTION : Copies horizontal line of pixels from source to
* destination scaling up by 1 to 2.
*
* SPECIAL NOTES : None.
*
****************************************************************************/
void aom_horizontal_line_2_1_scale_c(const unsigned char *source,
unsigned int source_width,
unsigned char *dest,
unsigned int dest_width) {
const unsigned char *const source_end = source + source_width;
(void)dest_width;
while (source < source_end) {
dest[0] = source[0];
source += 2;
++dest;
}
}
void aom_vertical_band_2_1_scale_c(unsigned char *source, int src_pitch,
unsigned char *dest, int dest_pitch,
unsigned int dest_width) {
(void)dest_pitch;
(void)src_pitch;
memcpy(dest, source, dest_width);
}
void aom_vertical_band_2_1_scale_i_c(unsigned char *source, int src_pitch,
unsigned char *dest, int dest_pitch,
unsigned int dest_width) {
const unsigned char *const dest_end = dest + dest_width;
(void)dest_pitch;
while (dest < dest_end) {
const unsigned int a = source[-src_pitch] * 3;
const unsigned int b = source[0] * 10;
const unsigned int c = source[src_pitch] * 3;
dest[0] = (unsigned char)((8 + a + b + c) >> 4);
++source;
++dest;
}
}

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/*
* 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.
*/
#include <assert.h>
#include "aom_scale/yv12config.h"
#include "aom_mem/aom_mem.h"
#include "aom_ports/mem.h"
/****************************************************************************
* Exports
****************************************************************************/
/****************************************************************************
*
****************************************************************************/
#define yv12_align_addr(addr, align) \
(void *)(((size_t)(addr) + ((align)-1)) & (size_t) - (align))
#if CONFIG_AV1
// TODO(jkoleszar): Maybe replace this with struct aom_image
int aom_free_frame_buffer(YV12_BUFFER_CONFIG *ybf) {
if (ybf) {
if (ybf->buffer_alloc_sz > 0) {
aom_free(ybf->buffer_alloc);
}
#if CONFIG_HIGHBITDEPTH && CONFIG_GLOBAL_MOTION
if (ybf->y_buffer_8bit) free(ybf->y_buffer_8bit);
#endif
/* buffer_alloc isn't accessed by most functions. Rather y_buffer,
u_buffer and v_buffer point to buffer_alloc and are used. Clear out
all of this so that a freed pointer isn't inadvertently used */
memset(ybf, 0, sizeof(YV12_BUFFER_CONFIG));
} else {
return -1;
}
return 0;
}
int aom_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
int ss_x, int ss_y,
#if CONFIG_HIGHBITDEPTH
int use_highbitdepth,
#endif
int border, int byte_alignment,
aom_codec_frame_buffer_t *fb,
aom_get_frame_buffer_cb_fn_t cb, void *cb_priv) {
if (ybf) {
const int aom_byte_align = (byte_alignment == 0) ? 1 : byte_alignment;
const int aligned_width = (width + 7) & ~7;
const int aligned_height = (height + 7) & ~7;
const int y_stride = ((aligned_width + 2 * border) + 31) & ~31;
const uint64_t yplane_size =
(aligned_height + 2 * border) * (uint64_t)y_stride + byte_alignment;
const int uv_width = aligned_width >> ss_x;
const int uv_height = aligned_height >> ss_y;
const int uv_stride = y_stride >> ss_x;
const int uv_border_w = border >> ss_x;
const int uv_border_h = border >> ss_y;
const uint64_t uvplane_size =
(uv_height + 2 * uv_border_h) * (uint64_t)uv_stride + byte_alignment;
#if CONFIG_HIGHBITDEPTH
const uint64_t frame_size =
(1 + use_highbitdepth) * (yplane_size + 2 * uvplane_size);
#else
const uint64_t frame_size = yplane_size + 2 * uvplane_size;
#endif // CONFIG_HIGHBITDEPTH
uint8_t *buf = NULL;
if (cb != NULL) {
const int align_addr_extra_size = 31;
const uint64_t external_frame_size = frame_size + align_addr_extra_size;
assert(fb != NULL);
if (external_frame_size != (size_t)external_frame_size) return -1;
// Allocation to hold larger frame, or first allocation.
if (cb(cb_priv, (size_t)external_frame_size, fb) < 0) return -1;
if (fb->data == NULL || fb->size < external_frame_size) return -1;
ybf->buffer_alloc = (uint8_t *)yv12_align_addr(fb->data, 32);
#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
// This memset is needed for fixing the issue of using uninitialized
// value in msan test. It will cause a perf loss, so only do this for
// msan test.
memset(ybf->buffer_alloc, 0, (int)frame_size);
#endif
#endif
} else if (frame_size > (size_t)ybf->buffer_alloc_sz) {
// Allocation to hold larger frame, or first allocation.
aom_free(ybf->buffer_alloc);
ybf->buffer_alloc = NULL;
if (frame_size != (size_t)frame_size) return -1;
ybf->buffer_alloc = (uint8_t *)aom_memalign(32, (size_t)frame_size);
if (!ybf->buffer_alloc) return -1;
ybf->buffer_alloc_sz = (size_t)frame_size;
// This memset is needed for fixing valgrind error from C loop filter
// due to access uninitialized memory in frame border. It could be
// removed if border is totally removed.
memset(ybf->buffer_alloc, 0, ybf->buffer_alloc_sz);
}
/* Only support allocating buffers that have a border that's a multiple
* of 32. The border restriction is required to get 16-byte alignment of
* the start of the chroma rows without introducing an arbitrary gap
* between planes, which would break the semantics of things like
* aom_img_set_rect(). */
if (border & 0x1f) return -3;
ybf->y_crop_width = width;
ybf->y_crop_height = height;
ybf->y_width = aligned_width;
ybf->y_height = aligned_height;
ybf->y_stride = y_stride;
ybf->uv_crop_width = (width + ss_x) >> ss_x;
ybf->uv_crop_height = (height + ss_y) >> ss_y;
ybf->uv_width = uv_width;
ybf->uv_height = uv_height;
ybf->uv_stride = uv_stride;
ybf->border = border;
ybf->frame_size = (size_t)frame_size;
ybf->subsampling_x = ss_x;
ybf->subsampling_y = ss_y;
buf = ybf->buffer_alloc;
#if CONFIG_HIGHBITDEPTH
if (use_highbitdepth) {
// Store uint16 addresses when using 16bit framebuffers
buf = CONVERT_TO_BYTEPTR(ybf->buffer_alloc);
ybf->flags = YV12_FLAG_HIGHBITDEPTH;
} else {
ybf->flags = 0;
}
#endif // CONFIG_HIGHBITDEPTH
ybf->y_buffer = (uint8_t *)yv12_align_addr(
buf + (border * y_stride) + border, aom_byte_align);
ybf->u_buffer = (uint8_t *)yv12_align_addr(
buf + yplane_size + (uv_border_h * uv_stride) + uv_border_w,
aom_byte_align);
ybf->v_buffer =
(uint8_t *)yv12_align_addr(buf + yplane_size + uvplane_size +
(uv_border_h * uv_stride) + uv_border_w,
aom_byte_align);
#if CONFIG_HIGHBITDEPTH && CONFIG_GLOBAL_MOTION
if (ybf->y_buffer_8bit) {
free(ybf->y_buffer_8bit);
ybf->y_buffer_8bit = NULL;
}
#endif
ybf->corrupted = 0; /* assume not corrupted by errors */
return 0;
}
return -2;
}
int aom_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
int ss_x, int ss_y,
#if CONFIG_HIGHBITDEPTH
int use_highbitdepth,
#endif
int border, int byte_alignment) {
if (ybf) {
aom_free_frame_buffer(ybf);
return aom_realloc_frame_buffer(ybf, width, height, ss_x, ss_y,
#if CONFIG_HIGHBITDEPTH
use_highbitdepth,
#endif
border, byte_alignment, NULL, NULL, NULL);
}
return -2;
}
#endif

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/*
* 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.
*/
#include <assert.h>
#include "./aom_config.h"
#include "./aom_scale_rtcd.h"
#include "aom/aom_integer.h"
#include "aom_mem/aom_mem.h"
#include "aom_ports/mem.h"
#include "aom_scale/yv12config.h"
static void extend_plane(uint8_t *const src, int src_stride, int width,
int height, int extend_top, int extend_left,
int extend_bottom, int extend_right) {
int i;
const int linesize = extend_left + extend_right + width;
/* copy the left and right most columns out */
uint8_t *src_ptr1 = src;
uint8_t *src_ptr2 = src + width - 1;
uint8_t *dst_ptr1 = src - extend_left;
uint8_t *dst_ptr2 = src + width;
for (i = 0; i < height; ++i) {
memset(dst_ptr1, src_ptr1[0], extend_left);
memset(dst_ptr2, src_ptr2[0], extend_right);
src_ptr1 += src_stride;
src_ptr2 += src_stride;
dst_ptr1 += src_stride;
dst_ptr2 += src_stride;
}
/* Now copy the top and bottom lines into each line of the respective
* borders
*/
src_ptr1 = src - extend_left;
src_ptr2 = src + src_stride * (height - 1) - extend_left;
dst_ptr1 = src + src_stride * -extend_top - extend_left;
dst_ptr2 = src + src_stride * height - extend_left;
for (i = 0; i < extend_top; ++i) {
memcpy(dst_ptr1, src_ptr1, linesize);
dst_ptr1 += src_stride;
}
for (i = 0; i < extend_bottom; ++i) {
memcpy(dst_ptr2, src_ptr2, linesize);
dst_ptr2 += src_stride;
}
}
#if CONFIG_HIGHBITDEPTH
static void extend_plane_high(uint8_t *const src8, int src_stride, int width,
int height, int extend_top, int extend_left,
int extend_bottom, int extend_right) {
int i;
const int linesize = extend_left + extend_right + width;
uint16_t *src = CONVERT_TO_SHORTPTR(src8);
/* copy the left and right most columns out */
uint16_t *src_ptr1 = src;
uint16_t *src_ptr2 = src + width - 1;
uint16_t *dst_ptr1 = src - extend_left;
uint16_t *dst_ptr2 = src + width;
for (i = 0; i < height; ++i) {
aom_memset16(dst_ptr1, src_ptr1[0], extend_left);
aom_memset16(dst_ptr2, src_ptr2[0], extend_right);
src_ptr1 += src_stride;
src_ptr2 += src_stride;
dst_ptr1 += src_stride;
dst_ptr2 += src_stride;
}
/* Now copy the top and bottom lines into each line of the respective
* borders
*/
src_ptr1 = src - extend_left;
src_ptr2 = src + src_stride * (height - 1) - extend_left;
dst_ptr1 = src + src_stride * -extend_top - extend_left;
dst_ptr2 = src + src_stride * height - extend_left;
for (i = 0; i < extend_top; ++i) {
memcpy(dst_ptr1, src_ptr1, linesize * sizeof(uint16_t));
dst_ptr1 += src_stride;
}
for (i = 0; i < extend_bottom; ++i) {
memcpy(dst_ptr2, src_ptr2, linesize * sizeof(uint16_t));
dst_ptr2 += src_stride;
}
}
#endif
void aom_yv12_extend_frame_borders_c(YV12_BUFFER_CONFIG *ybf) {
const int uv_border = ybf->border / 2;
assert(ybf->border % 2 == 0);
assert(ybf->y_height - ybf->y_crop_height < 16);
assert(ybf->y_width - ybf->y_crop_width < 16);
assert(ybf->y_height - ybf->y_crop_height >= 0);
assert(ybf->y_width - ybf->y_crop_width >= 0);
#if CONFIG_HIGHBITDEPTH
if (ybf->flags & YV12_FLAG_HIGHBITDEPTH) {
extend_plane_high(ybf->y_buffer, ybf->y_stride, ybf->y_crop_width,
ybf->y_crop_height, ybf->border, ybf->border,
ybf->border + ybf->y_height - ybf->y_crop_height,
ybf->border + ybf->y_width - ybf->y_crop_width);
extend_plane_high(ybf->u_buffer, ybf->uv_stride, ybf->uv_crop_width,
ybf->uv_crop_height, uv_border, uv_border,
uv_border + ybf->uv_height - ybf->uv_crop_height,
uv_border + ybf->uv_width - ybf->uv_crop_width);
extend_plane_high(ybf->v_buffer, ybf->uv_stride, ybf->uv_crop_width,
ybf->uv_crop_height, uv_border, uv_border,
uv_border + ybf->uv_height - ybf->uv_crop_height,
uv_border + ybf->uv_width - ybf->uv_crop_width);
return;
}
#endif
extend_plane(ybf->y_buffer, ybf->y_stride, ybf->y_crop_width,
ybf->y_crop_height, ybf->border, ybf->border,
ybf->border + ybf->y_height - ybf->y_crop_height,
ybf->border + ybf->y_width - ybf->y_crop_width);
extend_plane(ybf->u_buffer, ybf->uv_stride, ybf->uv_crop_width,
ybf->uv_crop_height, uv_border, uv_border,
uv_border + ybf->uv_height - ybf->uv_crop_height,
uv_border + ybf->uv_width - ybf->uv_crop_width);
extend_plane(ybf->v_buffer, ybf->uv_stride, ybf->uv_crop_width,
ybf->uv_crop_height, uv_border, uv_border,
uv_border + ybf->uv_height - ybf->uv_crop_height,
uv_border + ybf->uv_width - ybf->uv_crop_width);
}
#if CONFIG_AV1
static void extend_frame(YV12_BUFFER_CONFIG *const ybf, int ext_size) {
const int c_w = ybf->uv_crop_width;
const int c_h = ybf->uv_crop_height;
const int ss_x = ybf->uv_width < ybf->y_width;
const int ss_y = ybf->uv_height < ybf->y_height;
const int c_et = ext_size >> ss_y;
const int c_el = ext_size >> ss_x;
const int c_eb = c_et + ybf->uv_height - ybf->uv_crop_height;
const int c_er = c_el + ybf->uv_width - ybf->uv_crop_width;
assert(ybf->y_height - ybf->y_crop_height < 16);
assert(ybf->y_width - ybf->y_crop_width < 16);
assert(ybf->y_height - ybf->y_crop_height >= 0);
assert(ybf->y_width - ybf->y_crop_width >= 0);
#if CONFIG_HIGHBITDEPTH
if (ybf->flags & YV12_FLAG_HIGHBITDEPTH) {
extend_plane_high(ybf->y_buffer, ybf->y_stride, ybf->y_crop_width,
ybf->y_crop_height, ext_size, ext_size,
ext_size + ybf->y_height - ybf->y_crop_height,
ext_size + ybf->y_width - ybf->y_crop_width);
extend_plane_high(ybf->u_buffer, ybf->uv_stride, c_w, c_h, c_et, c_el, c_eb,
c_er);
extend_plane_high(ybf->v_buffer, ybf->uv_stride, c_w, c_h, c_et, c_el, c_eb,
c_er);
return;
}
#endif
extend_plane(ybf->y_buffer, ybf->y_stride, ybf->y_crop_width,
ybf->y_crop_height, ext_size, ext_size,
ext_size + ybf->y_height - ybf->y_crop_height,
ext_size + ybf->y_width - ybf->y_crop_width);
extend_plane(ybf->u_buffer, ybf->uv_stride, c_w, c_h, c_et, c_el, c_eb, c_er);
extend_plane(ybf->v_buffer, ybf->uv_stride, c_w, c_h, c_et, c_el, c_eb, c_er);
}
void aom_extend_frame_borders_c(YV12_BUFFER_CONFIG *ybf) {
extend_frame(ybf, ybf->border);
}
void aom_extend_frame_inner_borders_c(YV12_BUFFER_CONFIG *ybf) {
const int inner_bw = (ybf->border > AOMINNERBORDERINPIXELS)
? AOMINNERBORDERINPIXELS
: ybf->border;
extend_frame(ybf, inner_bw);
}
void aom_extend_frame_borders_y_c(YV12_BUFFER_CONFIG *ybf) {
int ext_size = ybf->border;
assert(ybf->y_height - ybf->y_crop_height < 16);
assert(ybf->y_width - ybf->y_crop_width < 16);
assert(ybf->y_height - ybf->y_crop_height >= 0);
assert(ybf->y_width - ybf->y_crop_width >= 0);
#if CONFIG_HIGHBITDEPTH
if (ybf->flags & YV12_FLAG_HIGHBITDEPTH) {
extend_plane_high(ybf->y_buffer, ybf->y_stride, ybf->y_crop_width,
ybf->y_crop_height, ext_size, ext_size,
ext_size + ybf->y_height - ybf->y_crop_height,
ext_size + ybf->y_width - ybf->y_crop_width);
return;
}
#endif
extend_plane(ybf->y_buffer, ybf->y_stride, ybf->y_crop_width,
ybf->y_crop_height, ext_size, ext_size,
ext_size + ybf->y_height - ybf->y_crop_height,
ext_size + ybf->y_width - ybf->y_crop_width);
}
#endif // CONFIG_AV1
#if CONFIG_HIGHBITDEPTH
static void memcpy_short_addr(uint8_t *dst8, const uint8_t *src8, int num) {
uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);
uint16_t *src = CONVERT_TO_SHORTPTR(src8);
memcpy(dst, src, num * sizeof(uint16_t));
}
#endif // CONFIG_HIGHBITDEPTH
// Copies the source image into the destination image and updates the
// destination's UMV borders.
// Note: The frames are assumed to be identical in size.
void aom_yv12_copy_frame_c(const YV12_BUFFER_CONFIG *src_bc,
YV12_BUFFER_CONFIG *dst_bc) {
int row;
const uint8_t *src = src_bc->y_buffer;
uint8_t *dst = dst_bc->y_buffer;
#if 0
/* These assertions are valid in the codec, but the libaom-tester uses
* this code slightly differently.
*/
assert(src_bc->y_width == dst_bc->y_width);
assert(src_bc->y_height == dst_bc->y_height);
#endif
#if CONFIG_HIGHBITDEPTH
if (src_bc->flags & YV12_FLAG_HIGHBITDEPTH) {
assert(dst_bc->flags & YV12_FLAG_HIGHBITDEPTH);
for (row = 0; row < src_bc->y_height; ++row) {
memcpy_short_addr(dst, src, src_bc->y_width);
src += src_bc->y_stride;
dst += dst_bc->y_stride;
}
src = src_bc->u_buffer;
dst = dst_bc->u_buffer;
for (row = 0; row < src_bc->uv_height; ++row) {
memcpy_short_addr(dst, src, src_bc->uv_width);
src += src_bc->uv_stride;
dst += dst_bc->uv_stride;
}
src = src_bc->v_buffer;
dst = dst_bc->v_buffer;
for (row = 0; row < src_bc->uv_height; ++row) {
memcpy_short_addr(dst, src, src_bc->uv_width);
src += src_bc->uv_stride;
dst += dst_bc->uv_stride;
}
aom_yv12_extend_frame_borders_c(dst_bc);
return;
} else {
assert(!(dst_bc->flags & YV12_FLAG_HIGHBITDEPTH));
}
#endif
for (row = 0; row < src_bc->y_height; ++row) {
memcpy(dst, src, src_bc->y_width);
src += src_bc->y_stride;
dst += dst_bc->y_stride;
}
src = src_bc->u_buffer;
dst = dst_bc->u_buffer;
for (row = 0; row < src_bc->uv_height; ++row) {
memcpy(dst, src, src_bc->uv_width);
src += src_bc->uv_stride;
dst += dst_bc->uv_stride;
}
src = src_bc->v_buffer;
dst = dst_bc->v_buffer;
for (row = 0; row < src_bc->uv_height; ++row) {
memcpy(dst, src, src_bc->uv_width);
src += src_bc->uv_stride;
dst += dst_bc->uv_stride;
}
aom_yv12_extend_frame_borders_c(dst_bc);
}
void aom_yv12_copy_y_c(const YV12_BUFFER_CONFIG *src_ybc,
YV12_BUFFER_CONFIG *dst_ybc) {
int row;
const uint8_t *src = src_ybc->y_buffer;
uint8_t *dst = dst_ybc->y_buffer;
#if CONFIG_HIGHBITDEPTH
if (src_ybc->flags & YV12_FLAG_HIGHBITDEPTH) {
const uint16_t *src16 = CONVERT_TO_SHORTPTR(src);
uint16_t *dst16 = CONVERT_TO_SHORTPTR(dst);
for (row = 0; row < src_ybc->y_height; ++row) {
memcpy(dst16, src16, src_ybc->y_width * sizeof(uint16_t));
src16 += src_ybc->y_stride;
dst16 += dst_ybc->y_stride;
}
return;
}
#endif // CONFIG_HIGHBITDEPTH
for (row = 0; row < src_ybc->y_height; ++row) {
memcpy(dst, src, src_ybc->y_width);
src += src_ybc->y_stride;
dst += dst_ybc->y_stride;
}
}
void aom_yv12_copy_u_c(const YV12_BUFFER_CONFIG *src_bc,
YV12_BUFFER_CONFIG *dst_bc) {
int row;
const uint8_t *src = src_bc->u_buffer;
uint8_t *dst = dst_bc->u_buffer;
#if CONFIG_HIGHBITDEPTH
if (src_bc->flags & YV12_FLAG_HIGHBITDEPTH) {
const uint16_t *src16 = CONVERT_TO_SHORTPTR(src);
uint16_t *dst16 = CONVERT_TO_SHORTPTR(dst);
for (row = 0; row < src_bc->uv_height; ++row) {
memcpy(dst16, src16, src_bc->uv_width * sizeof(uint16_t));
src16 += src_bc->uv_stride;
dst16 += dst_bc->uv_stride;
}
return;
}
#endif // CONFIG_HIGHBITDEPTH
for (row = 0; row < src_bc->uv_height; ++row) {
memcpy(dst, src, src_bc->uv_width);
src += src_bc->uv_stride;
dst += dst_bc->uv_stride;
}
}
void aom_yv12_copy_v_c(const YV12_BUFFER_CONFIG *src_bc,
YV12_BUFFER_CONFIG *dst_bc) {
int row;
const uint8_t *src = src_bc->v_buffer;
uint8_t *dst = dst_bc->v_buffer;
#if CONFIG_HIGHBITDEPTH
if (src_bc->flags & YV12_FLAG_HIGHBITDEPTH) {
const uint16_t *src16 = CONVERT_TO_SHORTPTR(src);
uint16_t *dst16 = CONVERT_TO_SHORTPTR(dst);
for (row = 0; row < src_bc->uv_height; ++row) {
memcpy(dst16, src16, src_bc->uv_width * sizeof(uint16_t));
src16 += src_bc->uv_stride;
dst16 += dst_bc->uv_stride;
}
return;
}
#endif // CONFIG_HIGHBITDEPTH
for (row = 0; row < src_bc->uv_height; ++row) {
memcpy(dst, src, src_bc->uv_width);
src += src_bc->uv_stride;
dst += dst_bc->uv_stride;
}
}

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/*
* 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.
*/
#include <assert.h>
#include "./aom_config.h"
#include "aom_scale/yv12config.h"
#include "aom_mem/aom_mem.h"
#include "aom_scale/aom_scale.h"
#if HAVE_DSPR2
static void extend_plane(uint8_t *const src, int src_stride, int width,
int height, int extend_top, int extend_left,
int extend_bottom, int extend_right) {
int i, j;
uint8_t *left_src, *right_src;
uint8_t *left_dst_start, *right_dst_start;
uint8_t *left_dst, *right_dst;
uint8_t *top_src, *bot_src;
uint8_t *top_dst, *bot_dst;
uint32_t left_pix;
uint32_t right_pix;
uint32_t linesize;
/* copy the left and right most columns out */
left_src = src;
right_src = src + width - 1;
left_dst_start = src - extend_left;
right_dst_start = src + width;
for (i = height; i--;) {
left_dst = left_dst_start;
right_dst = right_dst_start;
__asm__ __volatile__(
"lb %[left_pix], 0(%[left_src]) \n\t"
"lb %[right_pix], 0(%[right_src]) \n\t"
"replv.qb %[left_pix], %[left_pix] \n\t"
"replv.qb %[right_pix], %[right_pix] \n\t"
: [left_pix] "=&r"(left_pix), [right_pix] "=&r"(right_pix)
: [left_src] "r"(left_src), [right_src] "r"(right_src));
for (j = extend_left / 4; j--;) {
__asm__ __volatile__(
"sw %[left_pix], 0(%[left_dst]) \n\t"
"sw %[right_pix], 0(%[right_dst]) \n\t"
:
: [left_dst] "r"(left_dst), [left_pix] "r"(left_pix),
[right_dst] "r"(right_dst), [right_pix] "r"(right_pix));
left_dst += 4;
right_dst += 4;
}
for (j = extend_left % 4; j--;) {
__asm__ __volatile__(
"sb %[left_pix], 0(%[left_dst]) \n\t"
"sb %[right_pix], 0(%[right_dst]) \n\t"
:
: [left_dst] "r"(left_dst), [left_pix] "r"(left_pix),
[right_dst] "r"(right_dst), [right_pix] "r"(right_pix));
left_dst += 1;
right_dst += 1;
}
left_src += src_stride;
right_src += src_stride;
left_dst_start += src_stride;
right_dst_start += src_stride;
}
/* Now copy the top and bottom lines into each line of the respective
* borders
*/
top_src = src - extend_left;
bot_src = src + src_stride * (height - 1) - extend_left;
top_dst = src + src_stride * (-extend_top) - extend_left;
bot_dst = src + src_stride * (height)-extend_left;
linesize = extend_left + extend_right + width;
for (i = 0; i < extend_top; i++) {
memcpy(top_dst, top_src, linesize);
top_dst += src_stride;
}
for (i = 0; i < extend_bottom; i++) {
memcpy(bot_dst, bot_src, linesize);
bot_dst += src_stride;
}
}
static void extend_frame(YV12_BUFFER_CONFIG *const ybf, int ext_size) {
const int c_w = ybf->uv_crop_width;
const int c_h = ybf->uv_crop_height;
const int ss_x = ybf->uv_width < ybf->y_width;
const int ss_y = ybf->uv_height < ybf->y_height;
const int c_et = ext_size >> ss_y;
const int c_el = ext_size >> ss_x;
const int c_eb = c_et + ybf->uv_height - ybf->uv_crop_height;
const int c_er = c_el + ybf->uv_width - ybf->uv_crop_width;
assert(ybf->y_height - ybf->y_crop_height < 16);
assert(ybf->y_width - ybf->y_crop_width < 16);
assert(ybf->y_height - ybf->y_crop_height >= 0);
assert(ybf->y_width - ybf->y_crop_width >= 0);
extend_plane(ybf->y_buffer, ybf->y_stride, ybf->y_crop_width,
ybf->y_crop_height, ext_size, ext_size,
ext_size + ybf->y_height - ybf->y_crop_height,
ext_size + ybf->y_width - ybf->y_crop_width);
extend_plane(ybf->u_buffer, ybf->uv_stride, c_w, c_h, c_et, c_el, c_eb, c_er);
extend_plane(ybf->v_buffer, ybf->uv_stride, c_w, c_h, c_et, c_el, c_eb, c_er);
}
void aom_extend_frame_borders_dspr2(YV12_BUFFER_CONFIG *ybf) {
extend_frame(ybf, ybf->border);
}
void aom_extend_frame_inner_borders_dspr2(YV12_BUFFER_CONFIG *ybf) {
const int inner_bw = (ybf->border > AOMINNERBORDERINPIXELS)
? AOMINNERBORDERINPIXELS
: ybf->border;
extend_frame(ybf, inner_bw);
}
#endif

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/*
* 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_SCALE_YV12CONFIG_H_
#define AOM_SCALE_YV12CONFIG_H_
#ifdef __cplusplus
extern "C" {
#endif
#include "./aom_config.h"
#include "aom/aom_codec.h"
#include "aom/aom_frame_buffer.h"
#include "aom/aom_integer.h"
#if CONFIG_EXT_PARTITION
#define AOMINNERBORDERINPIXELS 160
#else
#define AOMINNERBORDERINPIXELS 96
#endif // CONFIG_EXT_PARTITION
#define AOM_INTERP_EXTEND 4
// TODO(jingning): Use unified inter predictor for encoder and
// decoder during the development process. Revisit the frame border
// to improve the decoder performance.
#define AOM_BORDER_IN_PIXELS 160
typedef struct yv12_buffer_config {
int y_width;
int y_height;
int y_crop_width;
int y_crop_height;
int y_stride;
int uv_width;
int uv_height;
int uv_crop_width;
int uv_crop_height;
int uv_stride;
int alpha_width;
int alpha_height;
int alpha_stride;
uint8_t *y_buffer;
uint8_t *u_buffer;
uint8_t *v_buffer;
uint8_t *alpha_buffer;
#if CONFIG_HIGHBITDEPTH && CONFIG_GLOBAL_MOTION
// If the frame is stored in a 16-bit buffer, this stores an 8-bit version
// for use in global motion detection. It is allocated on-demand.
uint8_t *y_buffer_8bit;
#endif
uint8_t *buffer_alloc;
size_t buffer_alloc_sz;
int border;
size_t frame_size;
int subsampling_x;
int subsampling_y;
unsigned int bit_depth;
aom_color_space_t color_space;
aom_color_range_t color_range;
int render_width;
int render_height;
int corrupted;
int flags;
} YV12_BUFFER_CONFIG;
#define YV12_FLAG_HIGHBITDEPTH 8
int aom_alloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
int ss_x, int ss_y,
#if CONFIG_HIGHBITDEPTH
int use_highbitdepth,
#endif
int border, int byte_alignment);
// Updates the yv12 buffer config with the frame buffer. |byte_alignment| must
// be a power of 2, from 32 to 1024. 0 sets legacy alignment. If cb is not
// NULL, then libaom is using the frame buffer callbacks to handle memory.
// If cb is not NULL, libaom will call cb with minimum size in bytes needed
// to decode the current frame. If cb is NULL, libaom will allocate memory
// internally to decode the current frame. Returns 0 on success. Returns < 0
// on failure.
int aom_realloc_frame_buffer(YV12_BUFFER_CONFIG *ybf, int width, int height,
int ss_x, int ss_y,
#if CONFIG_HIGHBITDEPTH
int use_highbitdepth,
#endif
int border, int byte_alignment,
aom_codec_frame_buffer_t *fb,
aom_get_frame_buffer_cb_fn_t cb, void *cb_priv);
int aom_free_frame_buffer(YV12_BUFFER_CONFIG *ybf);
#ifdef __cplusplus
}
#endif
#endif // AOM_SCALE_YV12CONFIG_H_