* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+#include <float.h>
+
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
+#include "gblur.h"
#include "internal.h"
#include "video.h"
-typedef struct GBlurContext {
- const AVClass *class;
-
- float sigma;
- float sigmaV;
- int steps;
- int planes;
-
- int depth;
- int planewidth[4];
- int planeheight[4];
- float *buffer;
- float boundaryscale;
- float boundaryscaleV;
- float postscale;
- float postscaleV;
- float nu;
- float nuV;
- int nb_planes;
-} GBlurContext;
-
#define OFFSET(x) offsetof(GBlurContext, x)
-#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
static const AVOption gblur_options[] = {
{ "sigma", "set sigma", OFFSET(sigma), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0.0, 1024, FLAGS },
int width;
} ThreadData;
+static void postscale_c(float *buffer, int length,
+ float postscale, float min, float max)
+{
+ for (int i = 0; i < length; i++) {
+ buffer[i] *= postscale;
+ buffer[i] = av_clipf(buffer[i], min, max);
+ }
+}
+
+static void horiz_slice_c(float *buffer, int width, int height, int steps,
+ float nu, float bscale)
+{
+ int step, x, y;
+ float *ptr;
+ for (y = 0; y < height; y++) {
+ for (step = 0; step < steps; step++) {
+ ptr = buffer + width * y;
+ ptr[0] *= bscale;
+
+ /* Filter rightwards */
+ for (x = 1; x < width; x++)
+ ptr[x] += nu * ptr[x - 1];
+ ptr[x = width - 1] *= bscale;
+
+ /* Filter leftwards */
+ for (; x > 0; x--)
+ ptr[x - 1] += nu * ptr[x];
+ }
+ }
+}
+
static int filter_horizontally(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
GBlurContext *s = ctx->priv;
const int steps = s->steps;
const float nu = s->nu;
float *buffer = s->buffer;
- int y, x, step;
- float *ptr;
- /* Filter horizontally along each row */
- for (y = slice_start; y < slice_end; y++) {
- for (step = 0; step < steps; step++) {
- ptr = buffer + width * y;
- ptr[0] *= boundaryscale;
+ s->horiz_slice(buffer + width * slice_start, width, slice_end - slice_start,
+ steps, nu, boundaryscale);
+ emms_c();
+ return 0;
+}
- /* Filter rightwards */
- for (x = 1; x < width; x++)
- ptr[x] += nu * ptr[x - 1];
+static void do_vertical_columns(float *buffer, int width, int height,
+ int column_begin, int column_end, int steps,
+ float nu, float boundaryscale, int column_step)
+{
+ const int numpixels = width * height;
+ int i, x, k, step;
+ float *ptr;
+ for (x = column_begin; x < column_end;) {
+ for (step = 0; step < steps; step++) {
+ ptr = buffer + x;
+ for (k = 0; k < column_step; k++) {
+ ptr[k] *= boundaryscale;
+ }
+ /* Filter downwards */
+ for (i = width; i < numpixels; i += width) {
+ for (k = 0; k < column_step; k++) {
+ ptr[i + k] += nu * ptr[i - width + k];
+ }
+ }
+ i = numpixels - width;
- ptr[x = width - 1] *= boundaryscale;
+ for (k = 0; k < column_step; k++)
+ ptr[i + k] *= boundaryscale;
- /* Filter leftwards */
- for (; x > 0; x--)
- ptr[x - 1] += nu * ptr[x];
+ /* Filter upwards */
+ for (; i > 0; i -= width) {
+ for (k = 0; k < column_step; k++)
+ ptr[i - width + k] += nu * ptr[i + k];
+ }
}
+ x += column_step;
}
-
- return 0;
}
static int filter_vertically(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
const int slice_start = (width * jobnr ) / nb_jobs;
const int slice_end = (width * (jobnr+1)) / nb_jobs;
const float boundaryscale = s->boundaryscaleV;
- const int numpixels = width * height;
const int steps = s->steps;
const float nu = s->nuV;
float *buffer = s->buffer;
- int i, x, step;
- float *ptr;
+ int aligned_end;
- /* Filter vertically along each column */
- for (x = slice_start; x < slice_end; x++) {
- for (step = 0; step < steps; step++) {
- ptr = buffer + x;
- ptr[0] *= boundaryscale;
-
- /* Filter downwards */
- for (i = width; i < numpixels; i += width)
- ptr[i] += nu * ptr[i - width];
-
- ptr[i = numpixels - width] *= boundaryscale;
-
- /* Filter upwards */
- for (; i > 0; i -= width)
- ptr[i - width] += nu * ptr[i];
- }
- }
+ aligned_end = slice_start + (((slice_end - slice_start) >> 3) << 3);
+ /* Filter vertically along columns (process 8 columns in each step) */
+ do_vertical_columns(buffer, width, height, slice_start, aligned_end,
+ steps, nu, boundaryscale, 8);
+ /* Filter un-aligned columns one by one */
+ do_vertical_columns(buffer, width, height, aligned_end, slice_end,
+ steps, nu, boundaryscale, 1);
return 0;
}
-
static int filter_postscale(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
GBlurContext *s = ctx->priv;
ThreadData *td = arg;
+ const float max = s->flt ? FLT_MAX : (1 << s->depth) - 1;
+ const float min = s->flt ? -FLT_MAX : 0.f;
const int height = td->height;
const int width = td->width;
- const int64_t numpixels = width * (int64_t)height;
- const unsigned slice_start = (numpixels * jobnr ) / nb_jobs;
- const unsigned slice_end = (numpixels * (jobnr+1)) / nb_jobs;
+ const int awidth = FFALIGN(width, 64);
+ const int slice_start = (height * jobnr ) / nb_jobs;
+ const int slice_end = (height * (jobnr+1)) / nb_jobs;
const float postscale = s->postscale * s->postscaleV;
- float *buffer = s->buffer;
- unsigned i;
+ const int slice_size = slice_end - slice_start;
- for (i = slice_start; i < slice_end; i++)
- buffer[i] *= postscale;
+ s->postscale_slice(s->buffer + slice_start * awidth,
+ slice_size * awidth, postscale, min, max);
return 0;
}
AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
+ AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
- AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY16,
+ AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
+ AV_PIX_FMT_GBRPF32, AV_PIX_FMT_GBRAPF32,
+ AV_PIX_FMT_GRAYF32,
AV_PIX_FMT_NONE
};
return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
}
+void ff_gblur_init(GBlurContext *s)
+{
+ s->horiz_slice = horiz_slice_c;
+ s->postscale_slice = postscale_c;
+ if (ARCH_X86)
+ ff_gblur_init_x86(s);
+}
+
static int config_input(AVFilterLink *inlink)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
GBlurContext *s = inlink->dst->priv;
s->depth = desc->comp[0].depth;
+ s->flt = !!(desc->flags & AV_PIX_FMT_FLAG_FLOAT);
s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
s->planewidth[0] = s->planewidth[3] = inlink->w;
s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
- s->buffer = av_malloc_array(inlink->w, inlink->h * sizeof(*s->buffer));
+ s->buffer = av_malloc_array(FFALIGN(inlink->w, 64), FFALIGN(inlink->h, 64) * sizeof(*s->buffer));
if (!s->buffer)
return AVERROR(ENOMEM);
if (s->sigmaV < 0) {
s->sigmaV = s->sigma;
}
+ ff_gblur_init(s);
return 0;
}
continue;
}
- if (s->depth == 8) {
+ if (s->flt) {
+ av_image_copy_plane((uint8_t *)bptr, width * sizeof(float),
+ in->data[plane], in->linesize[plane],
+ width * sizeof(float), height);
+ } else if (s->depth == 8) {
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
bptr[x] = src[x];
gaussianiir2d(ctx, plane);
bptr = s->buffer;
- if (s->depth == 8) {
+ if (s->flt) {
+ av_image_copy_plane(out->data[plane], out->linesize[plane],
+ (uint8_t *)bptr, width * sizeof(float),
+ width * sizeof(float), height);
+ } else if (s->depth == 8) {
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
dst[x] = bptr[x];
{ NULL }
};
-AVFilter ff_vf_gblur = {
+const AVFilter ff_vf_gblur = {
.name = "gblur",
.description = NULL_IF_CONFIG_SMALL("Apply Gaussian Blur filter."),
.priv_size = sizeof(GBlurContext),
.inputs = gblur_inputs,
.outputs = gblur_outputs,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
+ .process_command = ff_filter_process_command,
};
projects / ffmpeg / blobdiff