Browse code
avfilter: add avgblur filter
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Paul B Mahol authored on 2016/09/05 22:28:09Showing 6 changed files
- Changelog
- doc/filters.texi
- libavfilter/Makefile
- libavfilter/allfilters.c
- libavfilter/version.h
- libavfilter/vf_avgblur.c
| ... | ... |
@@ -4402,6 +4402,24 @@ number in range [5, 129]. |
| 4402 | 4402 |
Set what planes of frame filter will use for averaging. Default is all. |
| 4403 | 4403 |
@end table |
| 4404 | 4404 |
|
| 4405 |
+@section avgblur |
|
| 4406 |
+ |
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| 4407 |
+Apply average blur filter. |
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| 4408 |
+ |
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+The filter accepts the following options: |
|
| 4410 |
+ |
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+@table @option |
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| 4412 |
+@item sizeX |
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| 4413 |
+Set horizontal kernel size. |
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+ |
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| 4415 |
+@item planes |
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| 4416 |
+Set which planes to filter. By default all planes are filtered. |
|
| 4417 |
+ |
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| 4418 |
+@item sizeY |
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| 4419 |
+Set vertical kernel size, if zero it will be same as @code{sizeX}.
|
|
| 4420 |
+Default is @code{0}.
|
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| 4421 |
+@end table |
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| 4422 |
+ |
|
| 4405 | 4423 |
@section bbox |
| 4406 | 4424 |
|
| 4407 | 4425 |
Compute the bounding box for the non-black pixels in the input frame |
| ... | ... |
@@ -124,6 +124,7 @@ OBJS-$(CONFIG_ALPHAEXTRACT_FILTER) += vf_extractplanes.o |
| 124 | 124 |
OBJS-$(CONFIG_ALPHAMERGE_FILTER) += vf_alphamerge.o |
| 125 | 125 |
OBJS-$(CONFIG_ASS_FILTER) += vf_subtitles.o |
| 126 | 126 |
OBJS-$(CONFIG_ATADENOISE_FILTER) += vf_atadenoise.o |
| 127 |
+OBJS-$(CONFIG_AVGBLUR_FILTER) += vf_avgblur.o |
|
| 127 | 128 |
OBJS-$(CONFIG_BBOX_FILTER) += bbox.o vf_bbox.o |
| 128 | 129 |
OBJS-$(CONFIG_BENCH_FILTER) += f_bench.o |
| 129 | 130 |
OBJS-$(CONFIG_BITPLANENOISE_FILTER) += vf_bitplanenoise.o |
| ... | ... |
@@ -141,6 +141,7 @@ void avfilter_register_all(void) |
| 141 | 141 |
REGISTER_FILTER(ALPHAMERGE, alphamerge, vf); |
| 142 | 142 |
REGISTER_FILTER(ASS, ass, vf); |
| 143 | 143 |
REGISTER_FILTER(ATADENOISE, atadenoise, vf); |
| 144 |
+ REGISTER_FILTER(AVGBLUR, avgblur, vf); |
|
| 144 | 145 |
REGISTER_FILTER(BBOX, bbox, vf); |
| 145 | 146 |
REGISTER_FILTER(BENCH, bench, vf); |
| 146 | 147 |
REGISTER_FILTER(BITPLANENOISE, bitplanenoise, vf); |
| ... | ... |
@@ -30,7 +30,7 @@ |
| 30 | 30 |
#include "libavutil/version.h" |
| 31 | 31 |
|
| 32 | 32 |
#define LIBAVFILTER_VERSION_MAJOR 6 |
| 33 |
-#define LIBAVFILTER_VERSION_MINOR 60 |
|
| 33 |
+#define LIBAVFILTER_VERSION_MINOR 61 |
|
| 34 | 34 |
#define LIBAVFILTER_VERSION_MICRO 100 |
| 35 | 35 |
|
| 36 | 36 |
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ |
| 37 | 37 |
new file mode 100644 |
| ... | ... |
@@ -0,0 +1,326 @@ |
| 0 |
+/* |
|
| 1 |
+ * Copyright (c) 2016 Paul B Mahol |
|
| 2 |
+ * |
|
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+ * Permission is hereby granted, free of charge, to any person obtaining a copy |
|
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+ * of this software and associated documentation files (the "Software"), to deal |
|
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+ * in the Software without restriction, including without limitation the rights |
|
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+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
|
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+ * copies of the Software, and to permit persons to whom the Software is |
|
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+ * furnished to do so, subject to the following conditions: |
|
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+ * |
|
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+ * The above copyright notice and this permission notice shall be included in |
|
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+ * all copies or substantial portions of the Software. |
|
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+ * |
|
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
|
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
|
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
|
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+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
|
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+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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+ * SOFTWARE. |
|
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+ */ |
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+ |
|
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+#include "libavutil/imgutils.h" |
|
| 23 |
+#include "libavutil/opt.h" |
|
| 24 |
+#include "libavutil/pixdesc.h" |
|
| 25 |
+#include "avfilter.h" |
|
| 26 |
+#include "formats.h" |
|
| 27 |
+#include "internal.h" |
|
| 28 |
+#include "video.h" |
|
| 29 |
+ |
|
| 30 |
+typedef struct AverageBlurContext {
|
|
| 31 |
+ const AVClass *class; |
|
| 32 |
+ |
|
| 33 |
+ int radius; |
|
| 34 |
+ int radiusV; |
|
| 35 |
+ int planes; |
|
| 36 |
+ |
|
| 37 |
+ int depth; |
|
| 38 |
+ int planewidth[4]; |
|
| 39 |
+ int planeheight[4]; |
|
| 40 |
+ float *buffer; |
|
| 41 |
+ int nb_planes; |
|
| 42 |
+ |
|
| 43 |
+ int (*filter_horizontally)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); |
|
| 44 |
+ int (*filter_vertically)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); |
|
| 45 |
+} AverageBlurContext; |
|
| 46 |
+ |
|
| 47 |
+#define OFFSET(x) offsetof(AverageBlurContext, x) |
|
| 48 |
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM |
|
| 49 |
+ |
|
| 50 |
+static const AVOption avgblur_options[] = {
|
|
| 51 |
+ { "sizeX", "set horizontal size", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=1}, 1, 1024, FLAGS },
|
|
| 52 |
+ { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
|
|
| 53 |
+ { "sizeY", "set vertical size", OFFSET(radiusV), AV_OPT_TYPE_INT, {.i64=0}, 0, 1024, FLAGS },
|
|
| 54 |
+ { NULL }
|
|
| 55 |
+}; |
|
| 56 |
+ |
|
| 57 |
+AVFILTER_DEFINE_CLASS(avgblur); |
|
| 58 |
+ |
|
| 59 |
+typedef struct ThreadData {
|
|
| 60 |
+ int height; |
|
| 61 |
+ int width; |
|
| 62 |
+ uint8_t *ptr; |
|
| 63 |
+ int linesize; |
|
| 64 |
+} ThreadData; |
|
| 65 |
+ |
|
| 66 |
+#define HORIZONTAL_FILTER(name, type) \ |
|
| 67 |
+static int filter_horizontally_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)\ |
|
| 68 |
+{ \
|
|
| 69 |
+ AverageBlurContext *s = ctx->priv; \ |
|
| 70 |
+ ThreadData *td = arg; \ |
|
| 71 |
+ const int height = td->height; \ |
|
| 72 |
+ const int width = td->width; \ |
|
| 73 |
+ const int slice_start = (height * jobnr ) / nb_jobs; \ |
|
| 74 |
+ const int slice_end = (height * (jobnr+1)) / nb_jobs; \ |
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| 75 |
+ const int radius = FFMIN(s->radius, width / 2); \ |
|
| 76 |
+ const int linesize = td->linesize / sizeof(type); \ |
|
| 77 |
+ float *buffer = s->buffer; \ |
|
| 78 |
+ const type *src; \ |
|
| 79 |
+ float *ptr; \ |
|
| 80 |
+ int y, x; \ |
|
| 81 |
+ \ |
|
| 82 |
+ /* Filter horizontally along each row */ \ |
|
| 83 |
+ for (y = slice_start; y < slice_end; y++) { \
|
|
| 84 |
+ float acc = 0; \ |
|
| 85 |
+ int count = 0; \ |
|
| 86 |
+ \ |
|
| 87 |
+ src = (const type *)td->ptr + linesize * y; \ |
|
| 88 |
+ ptr = buffer + width * y; \ |
|
| 89 |
+ \ |
|
| 90 |
+ for (x = 0; x < radius; x++) { \
|
|
| 91 |
+ acc += src[x]; \ |
|
| 92 |
+ } \ |
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+ count += radius; \ |
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+ \ |
|
| 95 |
+ for (x = 0; x <= radius; x++) { \
|
|
| 96 |
+ acc += src[x + radius]; \ |
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+ count++; \ |
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+ ptr[x] = acc / count; \ |
|
| 99 |
+ } \ |
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+ \ |
|
| 101 |
+ for (; x < width - radius; x++) { \
|
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| 102 |
+ acc += src[x + radius] - src[x - radius - 1]; \ |
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| 103 |
+ ptr[x] = acc / count; \ |
|
| 104 |
+ } \ |
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| 105 |
+ \ |
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| 106 |
+ for (; x < width; x++) { \
|
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| 107 |
+ acc -= src[x - radius]; \ |
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| 108 |
+ count--; \ |
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+ ptr[x] = acc / count; \ |
|
| 110 |
+ } \ |
|
| 111 |
+ } \ |
|
| 112 |
+ \ |
|
| 113 |
+ return 0; \ |
|
| 114 |
+} |
|
| 115 |
+ |
|
| 116 |
+HORIZONTAL_FILTER(8, uint8_t) |
|
| 117 |
+HORIZONTAL_FILTER(16, uint16_t) |
|
| 118 |
+ |
|
| 119 |
+#define VERTICAL_FILTER(name, type) \ |
|
| 120 |
+static int filter_vertically_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \ |
|
| 121 |
+{ \
|
|
| 122 |
+ AverageBlurContext *s = ctx->priv; \ |
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| 123 |
+ ThreadData *td = arg; \ |
|
| 124 |
+ const int height = td->height; \ |
|
| 125 |
+ const int width = td->width; \ |
|
| 126 |
+ const int slice_start = (width * jobnr ) / nb_jobs; \ |
|
| 127 |
+ const int slice_end = (width * (jobnr+1)) / nb_jobs; \ |
|
| 128 |
+ const int radius = FFMIN(s->radiusV, height / 2); \ |
|
| 129 |
+ const int linesize = td->linesize / sizeof(type); \ |
|
| 130 |
+ type *buffer = (type *)td->ptr; \ |
|
| 131 |
+ const float *src; \ |
|
| 132 |
+ type *ptr; \ |
|
| 133 |
+ int i, x; \ |
|
| 134 |
+ \ |
|
| 135 |
+ /* Filter vertically along each column */ \ |
|
| 136 |
+ for (x = slice_start; x < slice_end; x++) { \
|
|
| 137 |
+ float acc = 0; \ |
|
| 138 |
+ int count = 0; \ |
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| 139 |
+ \ |
|
| 140 |
+ ptr = buffer + x; \ |
|
| 141 |
+ src = s->buffer + x; \ |
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| 142 |
+ \ |
|
| 143 |
+ for (i = 0; i < radius; i++) { \
|
|
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+ acc += src[0]; \ |
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+ src += width; \ |
|
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+ } \ |
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+ count += radius; \ |
|
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+ \ |
|
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+ src = s->buffer + x; \ |
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| 150 |
+ ptr = buffer + x; \ |
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+ for (i = 0; i <= radius; i++) { \
|
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+ acc += src[(i + radius) * width]; \ |
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+ count++; \ |
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+ ptr[i * linesize] = acc / count; \ |
|
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+ } \ |
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+ \ |
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+ for (; i < height - radius; i++) { \
|
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+ acc += src[(i + radius) * width] - src[(i - radius - 1) * width]; \ |
|
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+ ptr[i * linesize] = acc / count; \ |
|
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+ } \ |
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+ \ |
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+ for (; i < height; i++) { \
|
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+ acc -= src[(i - radius) * width]; \ |
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+ count--; \ |
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+ ptr[i * linesize] = acc / count; \ |
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+ } \ |
|
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+ } \ |
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+ \ |
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+ return 0; \ |
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| 170 |
+} |
|
| 171 |
+ |
|
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+VERTICAL_FILTER(8, uint8_t) |
|
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+VERTICAL_FILTER(16, uint16_t) |
|
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+ |
|
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+static int config_input(AVFilterLink *inlink) |
|
| 176 |
+{
|
|
| 177 |
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
|
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+ AverageBlurContext *s = inlink->dst->priv; |
|
| 179 |
+ |
|
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+ s->depth = desc->comp[0].depth; |
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+ s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w); |
|
| 182 |
+ s->planewidth[0] = s->planewidth[3] = inlink->w; |
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+ s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h); |
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+ s->planeheight[0] = s->planeheight[3] = inlink->h; |
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+ |
|
| 186 |
+ s->nb_planes = av_pix_fmt_count_planes(inlink->format); |
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| 187 |
+ |
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| 188 |
+ s->buffer = av_malloc_array(inlink->w, inlink->h * sizeof(*s->buffer)); |
|
| 189 |
+ if (!s->buffer) |
|
| 190 |
+ return AVERROR(ENOMEM); |
|
| 191 |
+ |
|
| 192 |
+ if (s->radiusV <= 0) {
|
|
| 193 |
+ s->radiusV = s->radius; |
|
| 194 |
+ } |
|
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+ |
|
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+ if (s->depth == 8) {
|
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+ s->filter_horizontally = filter_horizontally_8; |
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+ s->filter_vertically = filter_vertically_8; |
|
| 199 |
+ } else {
|
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| 200 |
+ s->filter_horizontally = filter_horizontally_16; |
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+ s->filter_vertically = filter_vertically_16; |
|
| 202 |
+ } |
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+ |
|
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+ return 0; |
|
| 205 |
+} |
|
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+ |
|
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+static void averageiir2d(AVFilterContext *ctx, AVFrame *in, AVFrame *out, int plane) |
|
| 208 |
+{
|
|
| 209 |
+ AverageBlurContext *s = ctx->priv; |
|
| 210 |
+ const int width = s->planewidth[plane]; |
|
| 211 |
+ const int height = s->planeheight[plane]; |
|
| 212 |
+ const int nb_threads = ff_filter_get_nb_threads(ctx); |
|
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+ ThreadData td; |
|
| 214 |
+ |
|
| 215 |
+ td.width = width; |
|
| 216 |
+ td.height = height; |
|
| 217 |
+ td.ptr = in->data[plane]; |
|
| 218 |
+ td.linesize = in->linesize[plane]; |
|
| 219 |
+ ctx->internal->execute(ctx, s->filter_horizontally, &td, NULL, FFMIN(height, nb_threads)); |
|
| 220 |
+ td.ptr = out->data[plane]; |
|
| 221 |
+ td.linesize = out->linesize[plane]; |
|
| 222 |
+ ctx->internal->execute(ctx, s->filter_vertically, &td, NULL, FFMIN(width, nb_threads)); |
|
| 223 |
+} |
|
| 224 |
+ |
|
| 225 |
+static int query_formats(AVFilterContext *ctx) |
|
| 226 |
+{
|
|
| 227 |
+ static const enum AVPixelFormat pix_fmts[] = {
|
|
| 228 |
+ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, |
|
| 229 |
+ AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, |
|
| 230 |
+ AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P, |
|
| 231 |
+ AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, |
|
| 232 |
+ AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, |
|
| 233 |
+ AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, |
|
| 234 |
+ AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, |
|
| 235 |
+ AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, |
|
| 236 |
+ AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, |
|
| 237 |
+ AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, |
|
| 238 |
+ AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, |
|
| 239 |
+ AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, |
|
| 240 |
+ AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, |
|
| 241 |
+ AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, |
|
| 242 |
+ AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16, |
|
| 243 |
+ AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16, |
|
| 244 |
+ AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16, |
|
| 245 |
+ AV_PIX_FMT_NONE |
|
| 246 |
+ }; |
|
| 247 |
+ |
|
| 248 |
+ return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); |
|
| 249 |
+} |
|
| 250 |
+ |
|
| 251 |
+static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
|
| 252 |
+{
|
|
| 253 |
+ AVFilterContext *ctx = inlink->dst; |
|
| 254 |
+ AverageBlurContext *s = ctx->priv; |
|
| 255 |
+ AVFilterLink *outlink = ctx->outputs[0]; |
|
| 256 |
+ AVFrame *out; |
|
| 257 |
+ int plane; |
|
| 258 |
+ |
|
| 259 |
+ if (av_frame_is_writable(in)) {
|
|
| 260 |
+ out = in; |
|
| 261 |
+ } else {
|
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| 262 |
+ out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
|
| 263 |
+ if (!out) {
|
|
| 264 |
+ av_frame_free(&in); |
|
| 265 |
+ return AVERROR(ENOMEM); |
|
| 266 |
+ } |
|
| 267 |
+ av_frame_copy_props(out, in); |
|
| 268 |
+ } |
|
| 269 |
+ |
|
| 270 |
+ for (plane = 0; plane < s->nb_planes; plane++) {
|
|
| 271 |
+ const int height = s->planeheight[plane]; |
|
| 272 |
+ const int width = s->planewidth[plane]; |
|
| 273 |
+ |
|
| 274 |
+ if (!(s->planes & (1 << plane))) {
|
|
| 275 |
+ if (out != in) |
|
| 276 |
+ av_image_copy_plane(out->data[plane], out->linesize[plane], |
|
| 277 |
+ in->data[plane], in->linesize[plane], |
|
| 278 |
+ width * ((s->depth + 7) / 8), height); |
|
| 279 |
+ continue; |
|
| 280 |
+ } |
|
| 281 |
+ |
|
| 282 |
+ averageiir2d(ctx, in, out, plane); |
|
| 283 |
+ } |
|
| 284 |
+ |
|
| 285 |
+ if (out != in) |
|
| 286 |
+ av_frame_free(&in); |
|
| 287 |
+ return ff_filter_frame(outlink, out); |
|
| 288 |
+} |
|
| 289 |
+ |
|
| 290 |
+static av_cold void uninit(AVFilterContext *ctx) |
|
| 291 |
+{
|
|
| 292 |
+ AverageBlurContext *s = ctx->priv; |
|
| 293 |
+ |
|
| 294 |
+ av_freep(&s->buffer); |
|
| 295 |
+} |
|
| 296 |
+ |
|
| 297 |
+static const AVFilterPad avgblur_inputs[] = {
|
|
| 298 |
+ {
|
|
| 299 |
+ .name = "default", |
|
| 300 |
+ .type = AVMEDIA_TYPE_VIDEO, |
|
| 301 |
+ .config_props = config_input, |
|
| 302 |
+ .filter_frame = filter_frame, |
|
| 303 |
+ }, |
|
| 304 |
+ { NULL }
|
|
| 305 |
+}; |
|
| 306 |
+ |
|
| 307 |
+static const AVFilterPad avgblur_outputs[] = {
|
|
| 308 |
+ {
|
|
| 309 |
+ .name = "default", |
|
| 310 |
+ .type = AVMEDIA_TYPE_VIDEO, |
|
| 311 |
+ }, |
|
| 312 |
+ { NULL }
|
|
| 313 |
+}; |
|
| 314 |
+ |
|
| 315 |
+AVFilter ff_vf_avgblur = {
|
|
| 316 |
+ .name = "avgblur", |
|
| 317 |
+ .description = NULL_IF_CONFIG_SMALL("Apply Average Blur filter."),
|
|
| 318 |
+ .priv_size = sizeof(AverageBlurContext), |
|
| 319 |
+ .priv_class = &avgblur_class, |
|
| 320 |
+ .uninit = uninit, |
|
| 321 |
+ .query_formats = query_formats, |
|
| 322 |
+ .inputs = avgblur_inputs, |
|
| 323 |
+ .outputs = avgblur_outputs, |
|
| 324 |
+ .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, |
|
| 325 |
+}; |