*/
#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"
+#include "internal.h"
+#include "video.h"
static const char *const var_names[] = {
"w",
VARS_NB
};
-typedef struct {
+typedef struct FilterParam {
int radius;
int power;
} FilterParam;
-typedef struct {
+typedef struct BoxBlurContext {
+ 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];
+ char *luma_radius_expr;
+ char *chroma_radius_expr;
+ char *alpha_radius_expr;
int hsub, vsub;
int radius[4];
#define V 2
#define A 3
-static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
+static av_cold int init(AVFilterContext *ctx)
{
- BoxBlurContext *boxblur = ctx->priv;
- int e;
+ BoxBlurContext *s = ctx->priv;
- if (!args) {
- av_log(ctx, AV_LOG_ERROR,
- "Filter expects 2 or 4 or 6 arguments, none provided\n");
+ if (!s->luma_radius_expr) {
+ av_log(ctx, AV_LOG_ERROR, "Luma radius expression is not set.\n");
return AVERROR(EINVAL);
}
- 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 (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);
- }
-
- if (e < 4) {
- boxblur->chroma_param.power = boxblur->luma_param.power;
- av_strlcpy(boxblur->chroma_radius_expr, boxblur->luma_radius_expr,
- sizeof(boxblur->chroma_radius_expr));
+ if (!s->chroma_radius_expr) {
+ s->chroma_radius_expr = av_strdup(s->luma_radius_expr);
+ if (!s->chroma_radius_expr)
+ return AVERROR(ENOMEM);
+ s->chroma_param.power = s->luma_param.power;
}
- if (e < 6) {
- boxblur->alpha_param.power = boxblur->luma_param.power;
- av_strlcpy(boxblur->alpha_radius_expr, boxblur->luma_radius_expr,
- sizeof(boxblur->alpha_radius_expr));
+ if (!s->alpha_radius_expr) {
+ s->alpha_radius_expr = av_strdup(s->luma_radius_expr);
+ if (!s->alpha_radius_expr)
+ return AVERROR(ENOMEM);
+ s->alpha_param.power = s->luma_param.power;
}
return 0;
static av_cold void uninit(AVFilterContext *ctx)
{
- BoxBlurContext *boxblur = ctx->priv;
+ BoxBlurContext *s = ctx->priv;
- av_freep(&boxblur->temp[0]);
- av_freep(&boxblur->temp[1]);
+ av_freep(&s->temp[0]);
+ av_freep(&s->temp[1]);
}
static int query_formats(AVFilterContext *ctx)
{
- enum PixelFormat pix_fmts[] = {
- PIX_FMT_YUV444P, PIX_FMT_YUV422P, PIX_FMT_YUV420P,
- PIX_FMT_YUV411P, PIX_FMT_YUV410P, PIX_FMT_YUVA420P,
- PIX_FMT_YUV440P, PIX_FMT_GRAY8,
- PIX_FMT_YUVJ444P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ420P,
- PIX_FMT_YUVJ440P,
- PIX_FMT_NONE
+ 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,
+ AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
+ AV_PIX_FMT_YUVJ440P,
+ AV_PIX_FMT_NONE
};
ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
static int config_input(AVFilterLink *inlink)
{
- const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[inlink->format];
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
AVFilterContext *ctx = inlink->dst;
- BoxBlurContext *boxblur = ctx->priv;
+ BoxBlurContext *s = ctx->priv;
int w = inlink->w, h = inlink->h;
int cw, ch;
double var_values[VARS_NB], res;
char *expr;
int ret;
- av_freep(&boxblur->temp[0]);
- av_freep(&boxblur->temp[1]);
- if (!(boxblur->temp[0] = av_malloc(FFMAX(w, h))))
+ av_freep(&s->temp[0]);
+ av_freep(&s->temp[1]);
+ if (!(s->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 (!(s->temp[1] = av_malloc(FFMAX(w, h)))) {
+ av_freep(&s->temp[0]);
return AVERROR(ENOMEM);
}
- boxblur->hsub = desc->log2_chroma_w;
- boxblur->vsub = desc->log2_chroma_h;
+ s->hsub = desc->log2_chroma_w;
+ s->vsub = desc->log2_chroma_h;
var_values[VAR_W] = inlink->w;
var_values[VAR_H] = inlink->h;
- var_values[VAR_CW] = cw = w>>boxblur->hsub;
- var_values[VAR_CH] = ch = h>>boxblur->vsub;
- var_values[VAR_HSUB] = 1<<boxblur->hsub;
- var_values[VAR_VSUB] = 1<<boxblur->vsub;
+ var_values[VAR_CW] = cw = w>>s->hsub;
+ var_values[VAR_CH] = ch = h>>s->vsub;
+ var_values[VAR_HSUB] = 1<<s->hsub;
+ var_values[VAR_VSUB] = 1<<s->vsub;
#define EVAL_RADIUS_EXPR(comp) \
- expr = boxblur->comp##_radius_expr; \
+ expr = s->comp##_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; \
+ s->comp##_param.radius = res; \
if (ret < 0) { \
av_log(NULL, AV_LOG_ERROR, \
"Error when evaluating " #comp " radius expression '%s'\n", expr); \
"chroma_radius:%d chroma_power:%d "
"alpha_radius:%d alpha_power:%d "
"w:%d chroma_w:%d h:%d chroma_h:%d\n",
- boxblur->luma_param .radius, boxblur->luma_param .power,
- boxblur->chroma_param.radius, boxblur->chroma_param.power,
- boxblur->alpha_param .radius, boxblur->alpha_param .power,
+ s->luma_param .radius, s->luma_param .power,
+ s->chroma_param.radius, s->chroma_param.power,
+ s->alpha_param .radius, s->alpha_param .power,
w, cw, h, ch);
#define CHECK_RADIUS_VAL(w_, h_, comp) \
- if (boxblur->comp##_param.radius < 0 || \
- 2*boxblur->comp##_param.radius > FFMIN(w_, h_)) { \
+ if (s->comp##_param.radius < 0 || \
+ 2*s->comp##_param.radius > FFMIN(w_, h_)) { \
av_log(ctx, AV_LOG_ERROR, \
"Invalid " #comp " radius value %d, must be >= 0 and <= %d\n", \
- boxblur->comp##_param.radius, FFMIN(w_, h_)/2); \
+ s->comp##_param.radius, FFMIN(w_, h_)/2); \
return AVERROR(EINVAL); \
}
CHECK_RADIUS_VAL(w, h, luma);
CHECK_RADIUS_VAL(cw, ch, chroma);
CHECK_RADIUS_VAL(w, h, alpha);
- boxblur->radius[Y] = boxblur->luma_param.radius;
- boxblur->radius[U] = boxblur->radius[V] = boxblur->chroma_param.radius;
- boxblur->radius[A] = boxblur->alpha_param.radius;
+ s->radius[Y] = s->luma_param.radius;
+ s->radius[U] = s->radius[V] = s->chroma_param.radius;
+ s->radius[A] = s->alpha_param.radius;
- boxblur->power[Y] = boxblur->luma_param.power;
- boxblur->power[U] = boxblur->power[V] = boxblur->chroma_param.power;
- boxblur->power[A] = boxblur->alpha_param.power;
+ s->power[Y] = s->luma_param.power;
+ s->power[U] = s->power[V] = s->chroma_param.power;
+ s->power[A] = s->alpha_param.power;
return 0;
}
h, radius, power, temp);
}
-static void draw_slice(AVFilterLink *inlink, int y0, int h0, int slice_dir)
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
- BoxBlurContext *boxblur = ctx->priv;
+ BoxBlurContext *s = ctx->priv;
AVFilterLink *outlink = inlink->dst->outputs[0];
- AVFilterBufferRef *inpicref = inlink ->cur_buf;
- AVFilterBufferRef *outpicref = outlink->out_buf;
+ AVFrame *out;
int plane;
- int cw = inlink->w >> boxblur->hsub, ch = h0 >> boxblur->vsub;
+ int cw = inlink->w >> s->hsub, ch = in->height >> s->vsub;
int w[4] = { inlink->w, cw, cw, inlink->w };
- int h[4] = { h0, ch, ch, h0 };
+ int h[4] = { in->height, ch, ch, in->height };
+
+ out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
+ if (!out) {
+ av_frame_free(&in);
+ return AVERROR(ENOMEM);
+ }
+ av_frame_copy_props(out, in);
+
+ for (plane = 0; in->data[plane] && plane < 4; plane++)
+ hblur(out->data[plane], out->linesize[plane],
+ in ->data[plane], in ->linesize[plane],
+ w[plane], h[plane], s->radius[plane], s->power[plane],
+ s->temp);
- for (plane = 0; inpicref->data[plane] && plane < 4; plane++)
- hblur(outpicref->data[plane], outpicref->linesize[plane],
- inpicref ->data[plane], inpicref ->linesize[plane],
- w[plane], h[plane], boxblur->radius[plane], boxblur->power[plane],
- boxblur->temp);
+ for (plane = 0; in->data[plane] && plane < 4; plane++)
+ vblur(out->data[plane], out->linesize[plane],
+ out->data[plane], out->linesize[plane],
+ w[plane], h[plane], s->radius[plane], s->power[plane],
+ s->temp);
- for (plane = 0; inpicref->data[plane] && plane < 4; plane++)
- vblur(outpicref->data[plane], outpicref->linesize[plane],
- outpicref->data[plane], outpicref->linesize[plane],
- w[plane], h[plane], boxblur->radius[plane], boxblur->power[plane],
- boxblur->temp);
+ av_frame_free(&in);
- avfilter_draw_slice(outlink, y0, h0, slice_dir);
+ return ff_filter_frame(outlink, out);
}
-AVFilter avfilter_vf_boxblur = {
+#define OFFSET(x) offsetof(BoxBlurContext, x)
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
+static const AVOption options[] = {
+ { "luma_radius", "Radius of the luma blurring box", OFFSET(luma_radius_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
+ { "luma_power", "How many times should the boxblur be applied to luma",
+ OFFSET(luma_param.power), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, FLAGS },
+ { "chroma_radius", "Radius of the chroma blurring box", OFFSET(chroma_radius_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
+ { "chroma_power", "How many times should the boxblur be applied to chroma",
+ OFFSET(chroma_param.power), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, FLAGS },
+ { "alpha_radius", "Radius of the alpha blurring box", OFFSET(alpha_radius_expr), AV_OPT_TYPE_STRING, .flags = FLAGS },
+ { "alpha_power", "How many times should the boxblur be applied to alpha",
+ OFFSET(alpha_param.power), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, FLAGS },
+ { NULL },
+};
+
+static const AVClass boxblur_class = {
+ .class_name = "boxblur",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+static const AVFilterPad avfilter_vf_boxblur_inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .config_props = config_input,
+ .filter_frame = filter_frame,
+ },
+ { NULL }
+};
+
+static const AVFilterPad avfilter_vf_boxblur_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ },
+ { NULL }
+};
+
+AVFilter ff_vf_boxblur = {
.name = "boxblur",
.description = NULL_IF_CONFIG_SMALL("Blur the input."),
.priv_size = sizeof(BoxBlurContext),
+ .priv_class = &boxblur_class,
.init = init,
.uninit = uninit,
.query_formats = query_formats,
- .inputs = (AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .config_props = config_input,
- .draw_slice = draw_slice,
- .min_perms = AV_PERM_READ },
- { .name = NULL}},
- .outputs = (AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO, },
- { .name = NULL}},
+ .inputs = avfilter_vf_boxblur_inputs,
+ .outputs = avfilter_vf_boxblur_outputs,
};
projects / ffmpeg / blobdiff