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comb_detect.c
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comb_detect.c
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/* comb_detect.c
Copyright (c) 2003-2019 HandBrake Team
This file is part of the HandBrake source code
Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License v2.
For full terms see the file COPYING file or visit http://www.gnu.org/licenses/gpl-2.0.html
*/
/*****
Parameters:
Mode : Spatial metric : Motion thresh : Spatial thresh : Mask Filter Mode :
Block thresh : Block width : Block height
Defaults:
3:2:3:3:2:40:16:16
Original "Faster" settings:
0:2:6:9:1:80:16:16
*****/
#define MODE_GAMMA 1 // Scale gamma when decombing
#define MODE_FILTER 2 // Filter combing mask
#define MODE_MASK 4 // Output combing masks instead of pictures
#define MODE_COMPOSITE 8 // Overlay combing mask onto picture
#define FILTER_CLASSIC 1
#define FILTER_ERODE_DILATE 2
#include "handbrake/handbrake.h"
#include "handbrake/taskset.h"
typedef struct decomb_thread_arg_s {
hb_filter_private_t *pv;
int segment;
int segment_start[3];
int segment_height[3];
} decomb_thread_arg_t;
struct hb_filter_private_s
{
// comb detect parameters
int mode;
int filter_mode;
int spatial_metric;
int motion_threshold;
int spatial_threshold;
int block_threshold;
int block_width;
int block_height;
int * block_score;
int comb_check_complete;
int comb_check_nthreads;
float gamma_lut[256];
int comb_detect_ready;
hb_buffer_t * ref[3];
int ref_used[3];
/* Make buffers to store a comb masks. */
hb_buffer_t * mask;
hb_buffer_t * mask_filtered;
hb_buffer_t * mask_temp;
int mask_box_x;
int mask_box_y;
uint8_t mask_box_color;
int cpu_count;
int segment_height[3];
taskset_t decomb_filter_taskset; // Threads for comb detection
taskset_t decomb_check_taskset; // Threads for comb check
taskset_t mask_filter_taskset; // Threads for decomb mask filter
taskset_t mask_erode_taskset; // Threads for decomb mask erode
taskset_t mask_dilate_taskset; // Threads for decomb mask dilate
hb_buffer_list_t out_list;
// Filter statistics
int comb_heavy;
int comb_light;
int comb_none;
int frames;
};
static int comb_detect_init( hb_filter_object_t * filter,
hb_filter_init_t * init );
static int comb_detect_work( hb_filter_object_t * filter,
hb_buffer_t ** buf_in,
hb_buffer_t ** buf_out );
static void comb_detect_close( hb_filter_object_t * filter );
static const char comb_detect_template[] =
"mode=^"HB_INT_REG"$:spatial-metric=^([012])$:"
"motion-thresh=^"HB_INT_REG"$:spatial-thresh=^"HB_INT_REG"$:"
"filter-mode=^([012])$:block-thresh=^"HB_INT_REG"$:"
"block-width=^"HB_INT_REG"$:block-height=^"HB_INT_REG"$:"
"disable=^"HB_BOOL_REG"$";
hb_filter_object_t hb_filter_comb_detect =
{
.id = HB_FILTER_COMB_DETECT,
.enforce_order = 1,
.name = "Comb Detect",
.settings = NULL,
.init = comb_detect_init,
.work = comb_detect_work,
.close = comb_detect_close,
.settings_template = comb_detect_template,
};
static void draw_mask_box( hb_filter_private_t * pv )
{
int x = pv->mask_box_x;
int y = pv->mask_box_y;
int box_width = pv->block_width;
int box_height = pv->block_height;
int stride;
uint8_t * mskp;
if (pv->mode & MODE_FILTER)
{
mskp = pv->mask_filtered->plane[0].data;
stride = pv->mask_filtered->plane[0].stride;
}
else
{
mskp = pv->mask->plane[0].data;
stride = pv->mask->plane[0].stride;
}
int block_x, block_y;
for (block_x = 0; block_x < box_width; block_x++)
{
mskp[ y * stride + x + block_x] = 128;
mskp[(y + box_height) * stride + x + block_x] = 128;
}
for (block_y = 0; block_y < box_height; block_y++)
{
mskp[stride * (y + block_y) + x ] = 128;
mskp[stride * (y + block_y) + x + box_width] = 128;
}
}
static void apply_mask_line( uint8_t * srcp,
uint8_t * mskp,
int width )
{
int x;
for (x = 0; x < width; x++)
{
if (mskp[x] == 1)
{
srcp[x] = 255;
}
if (mskp[x] == 128)
{
srcp[x] = 128;
}
}
}
static void apply_mask(hb_filter_private_t * pv, hb_buffer_t * b)
{
/* draw_boxes */
draw_mask_box( pv );
int pp, yy;
hb_buffer_t * m;
if (pv->mode & MODE_FILTER)
{
m = pv->mask_filtered;
}
else
{
m = pv->mask;
}
for (pp = 0; pp < 3; pp++)
{
uint8_t * dstp = b->plane[pp].data;
uint8_t * mskp = m->plane[pp].data;
for (yy = 0; yy < m->plane[pp].height; yy++)
{
if (!(pv->mode & MODE_COMPOSITE) && pp == 0)
{
memcpy(dstp, mskp, m->plane[pp].width);
}
else if (!(pv->mode & MODE_COMPOSITE))
{
memset(dstp, 128, m->plane[pp].width);
}
if (pp == 0)
{
apply_mask_line(dstp, mskp, m->plane[pp].width);
}
dstp += b->plane[pp].stride;
mskp += m->plane[pp].stride;
}
}
}
static void store_ref(hb_filter_private_t * pv, hb_buffer_t * b)
{
// Free unused buffer
if (!pv->ref_used[0])
{
hb_buffer_close(&pv->ref[0]);
}
memmove(&pv->ref[0], &pv->ref[1], sizeof(pv->ref[0]) * 2 );
memmove(&pv->ref_used[0], &pv->ref_used[1], sizeof(pv->ref_used[0]) * 2 );
pv->ref[2] = b;
pv->ref_used[2] = 0;
}
static void reset_combing_results( hb_filter_private_t * pv )
{
pv->comb_check_complete = 0;
int ii;
for (ii = 0; ii < pv->comb_check_nthreads; ii++)
{
pv->block_score[ii] = 0;
}
}
static int check_combing_results( hb_filter_private_t * pv )
{
int combed = HB_COMB_NONE;
int ii;
for (ii = 0; ii < pv->comb_check_nthreads; ii++)
{
if (pv->block_score[ii] >= ( pv->block_threshold / 2 ))
{
if (pv->block_score[ii] <= pv->block_threshold)
{
// Indicate light combing for block_score that is between
// ( pv->block_threshold / 2 ) and pv->block_threshold
combed = HB_COMB_LIGHT;
pv->mask_box_color = 2;
}
else if (pv->block_score[ii] > pv->block_threshold)
{
pv->mask_box_color = 1;
return HB_COMB_HEAVY;
}
}
}
return combed;
}
static void check_filtered_combing_mask( hb_filter_private_t * pv, int segment,
int start, int stop )
{
/* Go through the mask in X*Y blocks. If any of these windows
have threshold or more combed pixels, consider the whole
frame to be combed and send it on to be deinterlaced. */
/* Block mask threshold -- The number of pixels
in a block_width * block_height window of
he mask that need to show combing for the
whole frame to be seen as such. */
int threshold = pv->block_threshold;
int block_width = pv->block_width;
int block_height = pv->block_height;
int block_x, block_y;
int block_score = 0;
uint8_t * mask_p;
int x, y, pp;
for (pp = 0; pp < 1; pp++)
{
int stride = pv->mask_filtered->plane[pp].stride;
int width = pv->mask_filtered->plane[pp].width;
pv->mask_box_x = -1;
pv->mask_box_y = -1;
pv->mask_box_color = 0;
for (y = start; y < ( stop - block_height + 1 ); y = y + block_height)
{
for (x = 0; x < ( width - block_width ); x = x + block_width)
{
block_score = 0;
for (block_y = 0; block_y < block_height; block_y++)
{
int my = y + block_y;
mask_p = &pv->mask_filtered->plane[pp].data[my*stride + x];
for (block_x = 0; block_x < block_width; block_x++)
{
block_score += mask_p[0];
mask_p++;
}
}
if (pv->comb_check_complete)
{
// Some other thread found coming before this one
return;
}
if (block_score >= ( threshold / 2 ))
{
pv->mask_box_x = x;
pv->mask_box_y = y;
pv->block_score[segment] = block_score;
if (block_score > threshold)
{
pv->comb_check_complete = 1;
return;
}
}
}
}
}
}
static void check_combing_mask( hb_filter_private_t * pv, int segment,
int start, int stop )
{
/* Go through the mask in X*Y blocks. If any of these windows
have threshold or more combed pixels, consider the whole
frame to be combed and send it on to be deinterlaced. */
/* Block mask threshold -- The number of pixels
in a block_width * block_height window of
he mask that need to show combing for the
whole frame to be seen as such. */
int threshold = pv->block_threshold;
int block_width = pv->block_width;
int block_height = pv->block_height;
int block_x, block_y;
int block_score = 0;
uint8_t * mask_p;
int x, y, pp;
for (pp = 0; pp < 1; pp++)
{
int stride = pv->mask->plane[pp].stride;
int width = pv->mask->plane[pp].width;
for (y = start; y < (stop - block_height + 1); y = y + block_height)
{
for (x = 0; x < (width - block_width); x = x + block_width)
{
block_score = 0;
for (block_y = 0; block_y < block_height; block_y++)
{
int mask_y = y + block_y;
mask_p = &pv->mask->plane[pp].data[mask_y * stride + x];
for (block_x = 0; block_x < block_width; block_x++)
{
/* We only want to mark a pixel in a block as combed
if the adjacent pixels are as well. Got to
handle the sides separately. */
if ((x + block_x) == 0)
{
block_score += mask_p[0] & mask_p[1];
}
else if ((x + block_x) == (width -1))
{
block_score += mask_p[-1] & mask_p[0];
}
else
{
block_score += mask_p[-1] & mask_p[0] & mask_p[1];
}
mask_p++;
}
}
if (pv->comb_check_complete)
{
// Some other thread found coming before this one
return;
}
if (block_score >= ( threshold / 2 ))
{
pv->mask_box_x = x;
pv->mask_box_y = y;
pv->block_score[segment] = block_score;
if (block_score > threshold)
{
pv->comb_check_complete = 1;
return;
}
}
}
}
}
}
static void build_gamma_lut( hb_filter_private_t * pv )
{
int i;
for (i = 0; i < 256; i++)
{
pv->gamma_lut[i] = pow( ( (float)i / (float)255 ), 2.2f );
}
}
static void detect_gamma_combed_segment( hb_filter_private_t * pv,
int segment_start, int segment_stop )
{
/* A mish-mash of various comb detection tricks
picked up from neuron2's Decomb plugin for
AviSynth and tritical's IsCombedT and
IsCombedTIVTC plugins. */
/* Comb scoring algorithm */
/* Motion threshold */
float mthresh = (float)pv->motion_threshold / (float)255;
/* Spatial threshold */
float athresh = (float)pv->spatial_threshold / (float)255;
float athresh6 = 6 *athresh;
/* One pas for Y, one pass for U, one pass for V */
int pp;
for (pp = 0; pp < 1; pp++)
{
int x, y;
int stride = pv->ref[0]->plane[pp].stride;
int width = pv->ref[0]->plane[pp].width;
int height = pv->ref[0]->plane[pp].height;
/* Comb detection has to start at y = 2 and end at
y = height - 2, because it needs to examine
2 pixels above and 2 below the current pixel. */
if (segment_start < 2)
segment_start = 2;
if (segment_stop > height - 2)
segment_stop = height - 2;
for (y = segment_start; y < segment_stop; y++)
{
/* These are just to make the buffer locations easier to read. */
int up_2 = -2 * stride ;
int up_1 = -1 * stride;
int down_1 = stride;
int down_2 = 2 * stride;
/* We need to examine a column of 5 pixels
in the prev, cur, and next frames. */
uint8_t * prev = &pv->ref[0]->plane[pp].data[y * stride];
uint8_t * cur = &pv->ref[1]->plane[pp].data[y * stride];
uint8_t * next = &pv->ref[2]->plane[pp].data[y * stride];
uint8_t * mask = &pv->mask->plane[pp].data[y * stride];
memset(mask, 0, stride);
for (x = 0; x < width; x++)
{
float up_diff, down_diff;
up_diff = pv->gamma_lut[cur[0]] - pv->gamma_lut[cur[up_1]];
down_diff = pv->gamma_lut[cur[0]] - pv->gamma_lut[cur[down_1]];
if (( up_diff > athresh && down_diff > athresh ) ||
( up_diff < -athresh && down_diff < -athresh ))
{
/* The pixel above and below are different,
and they change in the same "direction" too.*/
int motion = 0;
if (mthresh > 0)
{
/* Make sure there's sufficient motion between frame t-1 to frame t+1. */
if (fabs(pv->gamma_lut[prev[0]] - pv->gamma_lut[cur[0]] ) > mthresh &&
fabs(pv->gamma_lut[cur[up_1]] - pv->gamma_lut[next[up_1]] ) > mthresh &&
fabs(pv->gamma_lut[cur[down_1]] - pv->gamma_lut[next[down_1]]) > mthresh)
motion++;
if (fabs(pv->gamma_lut[next[0]] - pv->gamma_lut[cur[0]] ) > mthresh &&
fabs(pv->gamma_lut[prev[up_1]] - pv->gamma_lut[cur[up_1]] ) > mthresh &&
fabs(pv->gamma_lut[prev[down_1]] - pv->gamma_lut[cur[down_1]]) > mthresh)
motion++;
}
else
{
/* User doesn't want to check for motion,
so move on to the spatial check. */
motion = 1;
}
if (motion || pv->frames == 0)
{
float combing;
/* Tritical's noise-resistant combing scorer.
The check is done on a bob+blur convolution. */
combing = fabs(pv->gamma_lut[cur[up_2]] +
(4 * pv->gamma_lut[cur[0]]) +
pv->gamma_lut[cur[down_2]] -
(3 * (pv->gamma_lut[cur[up_1]] +
pv->gamma_lut[cur[down_1]])));
/* If the frame is sufficiently combed,
then mark it down on the mask as 1. */
if (combing > athresh6)
{
mask[0] = 1;
}
}
}
cur++;
prev++;
next++;
mask++;
}
}
}
}
static void detect_combed_segment( hb_filter_private_t * pv,
int segment_start, int segment_stop )
{
/* A mish-mash of various comb detection tricks
picked up from neuron2's Decomb plugin for
AviSynth and tritical's IsCombedT and
IsCombedTIVTC plugins. */
/* Comb scoring algorithm */
int spatial_metric = pv->spatial_metric;
/* Motion threshold */
int mthresh = pv->motion_threshold;
/* Spatial threshold */
int athresh = pv->spatial_threshold;
int athresh_squared = athresh * athresh;
int athresh6 = 6 * athresh;
/* One pas for Y, one pass for U, one pass for V */
int pp;
for (pp = 0; pp < 1; pp++)
{
int x, y;
int stride = pv->ref[0]->plane[pp].stride;
int width = pv->ref[0]->plane[pp].width;
int height = pv->ref[0]->plane[pp].height;
/* Comb detection has to start at y = 2 and end at
y = height - 2, because it needs to examine
2 pixels above and 2 below the current pixel. */
if (segment_start < 2)
segment_start = 2;
if (segment_stop > height - 2)
segment_stop = height - 2;
for (y = segment_start; y < segment_stop; y++)
{
/* These are just to make the buffer locations easier to read. */
int up_2 = -2 * stride ;
int up_1 = -1 * stride;
int down_1 = stride;
int down_2 = 2 * stride;
/* We need to examine a column of 5 pixels
in the prev, cur, and next frames. */
uint8_t * prev = &pv->ref[0]->plane[pp].data[y * stride];
uint8_t * cur = &pv->ref[1]->plane[pp].data[y * stride];
uint8_t * next = &pv->ref[2]->plane[pp].data[y * stride];
uint8_t * mask = &pv->mask->plane[pp].data[y * stride];
memset(mask, 0, stride);
for (x = 0; x < width; x++)
{
int up_diff = cur[0] - cur[up_1];
int down_diff = cur[0] - cur[down_1];
if (( up_diff > athresh && down_diff > athresh ) ||
( up_diff < -athresh && down_diff < -athresh ))
{
/* The pixel above and below are different,
and they change in the same "direction" too.*/
int motion = 0;
if (mthresh > 0)
{
/* Make sure there's sufficient motion between frame t-1 to frame t+1. */
if (abs(prev[0] - cur[0] ) > mthresh &&
abs(cur[up_1] - next[up_1] ) > mthresh &&
abs(cur[down_1] - next[down_1]) > mthresh)
motion++;
if (abs(next[0] - cur[0] ) > mthresh &&
abs(prev[up_1] - cur[up_1] ) > mthresh &&
abs(prev[down_1] - cur[down_1]) > mthresh)
motion++;
}
else
{
/* User doesn't want to check for motion,
so move on to the spatial check. */
motion = 1;
}
// If motion, or we can't measure motion yet...
if (motion || pv->frames == 0)
{
/* That means it's time for the spatial check.
We've got several options here. */
if (spatial_metric == 0)
{
/* Simple 32detect style comb detection */
if ((abs(cur[0] - cur[down_2]) < 10) &&
(abs(cur[0] - cur[down_1]) > 15))
{
mask[0] = 1;
}
}
else if (spatial_metric == 1)
{
/* This, for comparison, is what IsCombed uses.
It's better, but still noise sensitive. */
int combing = ( cur[up_1] - cur[0] ) *
( cur[down_1] - cur[0] );
if (combing > athresh_squared)
{
mask[0] = 1;
}
}
else if (spatial_metric == 2)
{
/* Tritical's noise-resistant combing scorer.
The check is done on a bob+blur convolution. */
int combing = abs( cur[up_2]
+ ( 4 * cur[0] )
+ cur[down_2]
- ( 3 * ( cur[up_1]
+ cur[down_1] ) ) );
/* If the frame is sufficiently combed,
then mark it down on the mask as 1. */
if (combing > athresh6)
{
mask[0] = 1;
}
}
}
}
cur++;
prev++;
next++;
mask++;
}
}
}
}
static void mask_dilate_thread( void *thread_args_v )
{
hb_filter_private_t * pv;
int segment, segment_start, segment_stop;
decomb_thread_arg_t *thread_args = thread_args_v;
pv = thread_args->pv;
segment = thread_args->segment;
hb_deep_log(3, "mask dilate thread started for segment %d", segment);
while (1)
{
/*
* Wait here until there is work to do.
*/
taskset_thread_wait4start( &pv->mask_dilate_taskset, segment );
if (taskset_thread_stop(&pv->mask_dilate_taskset, segment))
{
/*
* No more work to do, exit this thread.
*/
break;
}
int xx, yy, pp;
int count;
int dilation_threshold = 4;
for (pp = 0; pp < 1; pp++)
{
int width = pv->mask_filtered->plane[pp].width;
int height = pv->mask_filtered->plane[pp].height;
int stride = pv->mask_filtered->plane[pp].stride;
int start, stop, p, c, n;
segment_start = thread_args->segment_start[pp];
segment_stop = segment_start + thread_args->segment_height[pp];
if (segment_start == 0)
{
start = 1;
p = 0;
c = 1;
n = 2;
}
else
{
start = segment_start;
p = segment_start - 1;
c = segment_start;
n = segment_start + 1;
}
if (segment_stop == height)
{
stop = height -1;
}
else
{
stop = segment_stop;
}
uint8_t *curp = &pv->mask_filtered->plane[pp].data[p * stride + 1];
uint8_t *cur = &pv->mask_filtered->plane[pp].data[c * stride + 1];
uint8_t *curn = &pv->mask_filtered->plane[pp].data[n * stride + 1];
uint8_t *dst = &pv->mask_temp->plane[pp].data[c * stride + 1];
for (yy = start; yy < stop; yy++)
{
for (xx = 1; xx < width - 1; xx++)
{
if (cur[xx])
{
dst[xx] = 1;
continue;
}
count = curp[xx-1] + curp[xx] + curp[xx+1] +
cur [xx-1] + cur [xx+1] +
curn[xx-1] + curn[xx] + curn[xx+1];
dst[xx] = count >= dilation_threshold;
}
curp += stride;
cur += stride;
curn += stride;
dst += stride;
}
}
taskset_thread_complete( &pv->mask_dilate_taskset, segment );
}
/*
* Finished this segment, let everyone know.
*/
taskset_thread_complete( &pv->mask_dilate_taskset, segment );
}
static void mask_erode_thread( void *thread_args_v )
{
hb_filter_private_t * pv;
int segment, segment_start, segment_stop;
decomb_thread_arg_t *thread_args = thread_args_v;
pv = thread_args->pv;
segment = thread_args->segment;
hb_deep_log(3, "mask erode thread started for segment %d", segment);
while (1)
{
/*
* Wait here until there is work to do.
*/
taskset_thread_wait4start( &pv->mask_erode_taskset, segment );
if (taskset_thread_stop( &pv->mask_erode_taskset, segment ))
{
/*
* No more work to do, exit this thread.
*/
break;
}
int xx, yy, pp;
int count;
int erosion_threshold = 2;
for (pp = 0; pp < 1; pp++)
{
int width = pv->mask_filtered->plane[pp].width;
int height = pv->mask_filtered->plane[pp].height;
int stride = pv->mask_filtered->plane[pp].stride;
int start, stop, p, c, n;
segment_start = thread_args->segment_start[pp];
segment_stop = segment_start + thread_args->segment_height[pp];
if (segment_start == 0)
{
start = 1;
p = 0;
c = 1;
n = 2;
}
else
{
start = segment_start;
p = segment_start - 1;
c = segment_start;
n = segment_start + 1;
}
if (segment_stop == height)
{
stop = height -1;
}
else
{
stop = segment_stop;
}
uint8_t *curp = &pv->mask_temp->plane[pp].data[p * stride + 1];
uint8_t *cur = &pv->mask_temp->plane[pp].data[c * stride + 1];
uint8_t *curn = &pv->mask_temp->plane[pp].data[n * stride + 1];
uint8_t *dst = &pv->mask_filtered->plane[pp].data[c * stride + 1];
for (yy = start; yy < stop; yy++)
{
for (xx = 1; xx < width - 1; xx++)
{
if (cur[xx] == 0)
{
dst[xx] = 0;
continue;
}
count = curp[xx-1] + curp[xx] + curp[xx+1] +
cur [xx-1] + cur [xx+1] +
curn[xx-1] + curn[xx] + curn[xx+1];
dst[xx] = count >= erosion_threshold;
}
curp += stride;
cur += stride;
curn += stride;
dst += stride;
}
}
taskset_thread_complete( &pv->mask_erode_taskset, segment );
}
/*
* Finished this segment, let everyone know.
*/
taskset_thread_complete( &pv->mask_erode_taskset, segment );
}
static void mask_filter_thread( void *thread_args_v )
{
hb_filter_private_t * pv;
int segment, segment_start, segment_stop;
decomb_thread_arg_t *thread_args = thread_args_v;
pv = thread_args->pv;
segment = thread_args->segment;
hb_deep_log(3, "mask filter thread started for segment %d", segment);
while (1)
{
/*
* Wait here until there is work to do.
*/
taskset_thread_wait4start( &pv->mask_filter_taskset, segment );
if (taskset_thread_stop( &pv->mask_filter_taskset, segment ))
{
/*
* No more work to do, exit this thread.
*/
break;
}
int xx, yy, pp;
for (pp = 0; pp < 1; pp++)
{
int width = pv->mask->plane[pp].width;
int height = pv->mask->plane[pp].height;
int stride = pv->mask->plane[pp].stride;
int start, stop, p, c, n;
segment_start = thread_args->segment_start[pp];
segment_stop = segment_start + thread_args->segment_height[pp];
if (segment_start == 0)
{
start = 1;
p = 0;
c = 1;
n = 2;
}
else
{
start = segment_start;
p = segment_start - 1;
c = segment_start;
n = segment_start + 1;
}
if (segment_stop == height)
{
stop = height - 1;
}
else
{
stop = segment_stop;
}
uint8_t *curp = &pv->mask->plane[pp].data[p * stride + 1];
uint8_t *cur = &pv->mask->plane[pp].data[c * stride + 1];
uint8_t *curn = &pv->mask->plane[pp].data[n * stride + 1];
uint8_t *dst = (pv->filter_mode == FILTER_CLASSIC ) ?
&pv->mask_filtered->plane[pp].data[c * stride + 1] :
&pv->mask_temp->plane[pp].data[c * stride + 1] ;
for (yy = start; yy < stop; yy++)
{
for (xx = 1; xx < width - 1; xx++)
{
int h_count, v_count;
h_count = cur[xx-1] & cur[xx] & cur[xx+1];
v_count = curp[xx] & cur[xx] & curn[xx];
if (pv->filter_mode == FILTER_CLASSIC)
{
dst[xx] = h_count;
}
else
{
dst[xx] = h_count & v_count;
}
}
curp += stride;
cur += stride;
curn += stride;
dst += stride;
}
}
taskset_thread_complete( &pv->mask_filter_taskset, segment );
}
/*
* Finished this segment, let everyone know.
*/
taskset_thread_complete( &pv->mask_filter_taskset, segment );
}
static void decomb_check_thread( void *thread_args_v )
{
hb_filter_private_t * pv;
int segment, segment_start, segment_stop;
decomb_thread_arg_t *thread_args = thread_args_v;
pv = thread_args->pv;
segment = thread_args->segment;
hb_deep_log(3, "decomb check thread started for segment %d", segment);
while (1)
{
/*
* Wait here until there is work to do.
*/
taskset_thread_wait4start( &pv->decomb_check_taskset, segment );
if (taskset_thread_stop( &pv->decomb_check_taskset, segment ))
{
/*
* No more work to do, exit this thread.
*/
break;
}
segment_start = thread_args->segment_start[0];