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Diffstat (limited to 'libavfilter/vf_boxblur.c')
-rw-r--r--libavfilter/vf_boxblur.c101
1 files changed, 62 insertions, 39 deletions
diff --git a/libavfilter/vf_boxblur.c b/libavfilter/vf_boxblur.c
index e839c12060..3c72ddb538 100644
--- a/libavfilter/vf_boxblur.c
+++ b/libavfilter/vf_boxblur.c
@@ -2,20 +2,20 @@
* Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at>
* Copyright (c) 2011 Stefano Sabatini
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or modify
+ * FFmpeg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
- * with Libav; if not, write to the Free Software Foundation, Inc.,
+ * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
@@ -28,6 +28,7 @@
#include "libavutil/avstring.h"
#include "libavutil/common.h"
#include "libavutil/eval.h"
+#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
@@ -57,15 +58,14 @@ enum var_name {
typedef struct {
int radius;
int power;
+ char *radius_expr;
} FilterParam;
typedef struct {
+ const AVClass *class;
FilterParam luma_param;
FilterParam chroma_param;
FilterParam alpha_param;
- char luma_radius_expr [256];
- char chroma_radius_expr[256];
- char alpha_radius_expr [256];
int hsub, vsub;
int radius[4];
@@ -73,6 +73,30 @@ typedef struct {
uint8_t *temp[2]; ///< temporary buffer used in blur_power()
} BoxBlurContext;
+#define OFFSET(x) offsetof(BoxBlurContext, x)
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
+
+static const AVOption boxblur_options[] = {
+ { "luma_radius", "set luma radius", OFFSET(luma_param.radius_expr), AV_OPT_TYPE_STRING, {.str="2"}, .flags = FLAGS },
+ { "lr", "set luma radius", OFFSET(luma_param.radius_expr), AV_OPT_TYPE_STRING, {.str="2"}, .flags = FLAGS },
+ { "luma_power", "set luma power", OFFSET(luma_param.power), AV_OPT_TYPE_INT, {.i64=2}, 0, INT_MAX, .flags = FLAGS },
+ { "lp", "set luma power", OFFSET(luma_param.power), AV_OPT_TYPE_INT, {.i64=2}, 0, INT_MAX, .flags = FLAGS },
+
+ { "chroma_radius", "set chroma radius", OFFSET(chroma_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
+ { "cr", "set chroma radius", OFFSET(chroma_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
+ { "chroma_power", "set chroma power", OFFSET(chroma_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
+ { "cp", "set chroma power", OFFSET(chroma_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
+
+ { "alpha_radius", "set alpha radius", OFFSET(alpha_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
+ { "ar", "set alpha radius", OFFSET(alpha_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
+ { "alpha_power", "set alpha power", OFFSET(alpha_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
+ { "ap", "set alpha power", OFFSET(alpha_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
+
+ { NULL }
+};
+
+AVFILTER_DEFINE_CLASS(boxblur);
+
#define Y 0
#define U 1
#define V 2
@@ -81,35 +105,36 @@ typedef struct {
static av_cold int init(AVFilterContext *ctx, const char *args)
{
BoxBlurContext *boxblur = ctx->priv;
- int e;
+ static const char *shorthand[] = {
+ "luma_radius", "luma_power",
+ "chroma_radius", "chroma_power",
+ "alpha_radius", "alpha_power",
+ NULL
+ };
+ int ret;
- if (!args) {
- av_log(ctx, AV_LOG_ERROR,
- "Filter expects 2 or 4 or 6 arguments, none provided\n");
- return AVERROR(EINVAL);
- }
+ boxblur->class = &boxblur_class;
+ av_opt_set_defaults(boxblur);
- e = sscanf(args, "%255[^:]:%d:%255[^:]:%d:%255[^:]:%d",
- boxblur->luma_radius_expr, &boxblur->luma_param .power,
- boxblur->chroma_radius_expr, &boxblur->chroma_param.power,
- boxblur->alpha_radius_expr, &boxblur->alpha_param .power);
+ if ((ret = av_opt_set_from_string(boxblur, args, shorthand, "=", ":")) < 0)
+ return ret;
- if (e != 2 && e != 4 && e != 6) {
- av_log(ctx, AV_LOG_ERROR,
- "Filter expects 2 or 4 or 6 params, provided %d\n", e);
- return AVERROR(EINVAL);
+ /* fill missing params */
+ if (!boxblur->chroma_param.radius_expr) {
+ boxblur->chroma_param.radius_expr = av_strdup(boxblur->luma_param.radius_expr);
+ if (!boxblur->chroma_param.radius_expr)
+ return AVERROR(ENOMEM);
}
-
- if (e < 4) {
+ if (boxblur->chroma_param.power < 0)
boxblur->chroma_param.power = boxblur->luma_param.power;
- av_strlcpy(boxblur->chroma_radius_expr, boxblur->luma_radius_expr,
- sizeof(boxblur->chroma_radius_expr));
+
+ if (!boxblur->alpha_param.radius_expr) {
+ boxblur->alpha_param.radius_expr = av_strdup(boxblur->luma_param.radius_expr);
+ if (!boxblur->alpha_param.radius_expr)
+ return AVERROR(ENOMEM);
}
- if (e < 6) {
+ if (boxblur->alpha_param.power < 0)
boxblur->alpha_param.power = boxblur->luma_param.power;
- av_strlcpy(boxblur->alpha_radius_expr, boxblur->luma_radius_expr,
- sizeof(boxblur->alpha_radius_expr));
- }
return 0;
}
@@ -120,11 +145,12 @@ static av_cold void uninit(AVFilterContext *ctx)
av_freep(&boxblur->temp[0]);
av_freep(&boxblur->temp[1]);
+ av_opt_free(boxblur);
}
static int query_formats(AVFilterContext *ctx)
{
- enum AVPixelFormat pix_fmts[] = {
+ static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUVA420P,
AV_PIX_FMT_YUV440P, AV_PIX_FMT_GRAY8,
@@ -148,14 +174,9 @@ static int config_input(AVFilterLink *inlink)
char *expr;
int ret;
- av_freep(&boxblur->temp[0]);
- av_freep(&boxblur->temp[1]);
- if (!(boxblur->temp[0] = av_malloc(FFMAX(w, h))))
- return AVERROR(ENOMEM);
- if (!(boxblur->temp[1] = av_malloc(FFMAX(w, h)))) {
- av_freep(&boxblur->temp[0]);
+ if (!(boxblur->temp[0] = av_malloc(FFMAX(w, h))) ||
+ !(boxblur->temp[1] = av_malloc(FFMAX(w, h))))
return AVERROR(ENOMEM);
- }
boxblur->hsub = desc->log2_chroma_w;
boxblur->vsub = desc->log2_chroma_h;
@@ -168,7 +189,7 @@ static int config_input(AVFilterLink *inlink)
var_values[VAR_VSUB] = 1<<boxblur->vsub;
#define EVAL_RADIUS_EXPR(comp) \
- expr = boxblur->comp##_radius_expr; \
+ expr = boxblur->comp##_param.radius_expr; \
ret = av_expr_parse_and_eval(&res, expr, var_names, var_values, \
NULL, NULL, NULL, NULL, NULL, 0, ctx); \
boxblur->comp##_param.radius = res; \
@@ -181,7 +202,7 @@ static int config_input(AVFilterLink *inlink)
EVAL_RADIUS_EXPR(chroma);
EVAL_RADIUS_EXPR(alpha);
- av_log(ctx, AV_LOG_DEBUG,
+ av_log(ctx, AV_LOG_VERBOSE,
"luma_radius:%d luma_power:%d "
"chroma_radius:%d chroma_power:%d "
"alpha_radius:%d alpha_power:%d "
@@ -370,4 +391,6 @@ AVFilter avfilter_vf_boxblur = {
.inputs = avfilter_vf_boxblur_inputs,
.outputs = avfilter_vf_boxblur_outputs,
+
+ .priv_class = &boxblur_class,
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-21 07:15:56 +0000