/*
- * Copyright (C) 2008 Affine Systems, Inc (Michael Sullivan, Bobby Impollonia)
+ * Copyright (c) 2008 Affine Systems, Inc (Michael Sullivan, Bobby Impollonia)
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
*/
#include "libavutil/colorspace.h"
+#include "libavutil/common.h"
+#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
-#include "libavcore/parseutils.h"
+#include "libavutil/parseutils.h"
#include "avfilter.h"
+#include "formats.h"
+#include "internal.h"
+#include "video.h"
enum { Y, U, V, A };
-typedef struct {
- int x, y, w, h;
+typedef struct DrawBoxContext {
+ const AVClass *class;
+ int x, y, w_opt, h_opt, w, h;
+ char *color_str;
unsigned char yuv_color[4];
- int vsub, hsub; //< chroma subsampling
+ int vsub, hsub; ///< chroma subsampling
} DrawBoxContext;
-static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
+static av_cold int init(AVFilterContext *ctx)
{
- DrawBoxContext *drawbox= ctx->priv;
- char color_str[1024] = "black";
+ DrawBoxContext *s = ctx->priv;
uint8_t rgba_color[4];
- drawbox->x = drawbox->y = drawbox->w = drawbox->h = 0;
-
- if (args)
- sscanf(args, "%d:%d:%d:%d:%s",
- &drawbox->x, &drawbox->y, &drawbox->w, &drawbox->h, color_str);
-
- if (av_parse_color(rgba_color, color_str, -1, ctx) < 0)
+ if (av_parse_color(rgba_color, s->color_str, -1, ctx) < 0)
return AVERROR(EINVAL);
- drawbox->yuv_color[Y] = RGB_TO_Y_CCIR(rgba_color[0], rgba_color[1], rgba_color[2]);
- drawbox->yuv_color[U] = RGB_TO_U_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
- drawbox->yuv_color[V] = RGB_TO_V_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
- drawbox->yuv_color[A] = rgba_color[3];
+ s->yuv_color[Y] = RGB_TO_Y_CCIR(rgba_color[0], rgba_color[1], rgba_color[2]);
+ s->yuv_color[U] = RGB_TO_U_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
+ s->yuv_color[V] = RGB_TO_V_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
+ s->yuv_color[A] = rgba_color[3];
return 0;
}
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_YUVJ444P, PIX_FMT_YUVJ422P, PIX_FMT_YUVJ420P,
- PIX_FMT_YUV440P, 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_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
+ AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUVJ440P,
+ AV_PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
return 0;
}
static int config_input(AVFilterLink *inlink)
{
- DrawBoxContext *drawbox = inlink->dst->priv;
+ DrawBoxContext *s = inlink->dst->priv;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
- drawbox->hsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_w;
- drawbox->vsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_h;
+ s->hsub = desc->log2_chroma_w;
+ s->vsub = desc->log2_chroma_h;
- if (drawbox->w == 0) drawbox->w = inlink->w;
- if (drawbox->h == 0) drawbox->h = inlink->h;
+ s->w = (s->w_opt > 0) ? s->w_opt : inlink->w;
+ s->h = (s->h_opt > 0) ? s->h_opt : inlink->h;
- av_log(inlink->dst, AV_LOG_INFO, "x:%d y:%d w:%d h:%d color:0x%02X%02X%02X%02X\n",
- drawbox->w, drawbox->y, drawbox->w, drawbox->h,
- drawbox->yuv_color[Y], drawbox->yuv_color[U], drawbox->yuv_color[V], drawbox->yuv_color[A]);
+ av_log(inlink->dst, AV_LOG_VERBOSE, "x:%d y:%d w:%d h:%d color:0x%02X%02X%02X%02X\n",
+ s->w, s->y, s->w, s->h,
+ s->yuv_color[Y], s->yuv_color[U], s->yuv_color[V], s->yuv_color[A]);
return 0;
}
-static void draw_slice(AVFilterLink *inlink, int y0, int h, int slice_dir)
+static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
{
- DrawBoxContext *drawbox = inlink->dst->priv;
- int plane, x, y, xb = drawbox->x, yb = drawbox->y;
+ DrawBoxContext *s = inlink->dst->priv;
+ int plane, x, y, xb = s->x, yb = s->y;
unsigned char *row[4];
- AVFilterBufferRef *picref = inlink->cur_buf;
- for (y = FFMAX(yb, y0); y < (y0 + h) && y < (yb + drawbox->h); y++) {
- row[0] = picref->data[0] + y * picref->linesize[0];
+ for (y = FFMAX(yb, 0); y < frame->height && y < (yb + s->h); y++) {
+ row[0] = frame->data[0] + y * frame->linesize[0];
for (plane = 1; plane < 3; plane++)
- row[plane] = picref->data[plane] +
- picref->linesize[plane] * (y >> drawbox->vsub);
+ row[plane] = frame->data[plane] +
+ frame->linesize[plane] * (y >> s->vsub);
- for (x = FFMAX(xb, 0); x < (xb + drawbox->w) && x < picref->video->w; x++) {
- double alpha = (double)drawbox->yuv_color[A] / 255;
+ for (x = FFMAX(xb, 0); x < (xb + s->w) && x < frame->width; x++) {
+ double alpha = (double)s->yuv_color[A] / 255;
- if ((y - yb < 3) || (yb + drawbox->h - y < 4) ||
- (x - xb < 3) || (xb + drawbox->w - x < 4)) {
- row[0][x ] = (1 - alpha) * row[0][x ] + alpha * drawbox->yuv_color[Y];
- row[1][x >> drawbox->hsub] = (1 - alpha) * row[1][x >> drawbox->hsub] + alpha * drawbox->yuv_color[U];
- row[2][x >> drawbox->hsub] = (1 - alpha) * row[2][x >> drawbox->hsub] + alpha * drawbox->yuv_color[V];
+ if ((y - yb < 3) || (yb + s->h - y < 4) ||
+ (x - xb < 3) || (xb + s->w - x < 4)) {
+ row[0][x ] = (1 - alpha) * row[0][x ] + alpha * s->yuv_color[Y];
+ row[1][x >> s->hsub] = (1 - alpha) * row[1][x >> s->hsub] + alpha * s->yuv_color[U];
+ row[2][x >> s->hsub] = (1 - alpha) * row[2][x >> s->hsub] + alpha * s->yuv_color[V];
}
}
}
- avfilter_draw_slice(inlink->dst->outputs[0], y0, h, 1);
+ return ff_filter_frame(inlink->dst->outputs[0], frame);
}
-AVFilter avfilter_vf_drawbox = {
+#define OFFSET(x) offsetof(DrawBoxContext, x)
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
+static const AVOption options[] = {
+ { "x", "Horizontal position of the left box edge", OFFSET(x), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS },
+ { "y", "Vertical position of the top box edge", OFFSET(y), AV_OPT_TYPE_INT, { .i64 = 0 }, INT_MIN, INT_MAX, FLAGS },
+ { "width", "Width of the box", OFFSET(w_opt), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS },
+ { "height", "Height of the box", OFFSET(h_opt), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS },
+ { "color", "Color of the box", OFFSET(color_str), AV_OPT_TYPE_STRING, { .str = "black" }, .flags = FLAGS },
+ { NULL },
+};
+
+static const AVClass drawbox_class = {
+ .class_name = "drawbox",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+static const AVFilterPad avfilter_vf_drawbox_inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .config_props = config_input,
+ .get_video_buffer = ff_null_get_video_buffer,
+ .filter_frame = filter_frame,
+ .needs_writable = 1,
+ },
+ { NULL }
+};
+
+static const AVFilterPad avfilter_vf_drawbox_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ },
+ { NULL }
+};
+
+AVFilter ff_vf_drawbox = {
.name = "drawbox",
.description = NULL_IF_CONFIG_SMALL("Draw a colored box on the input video."),
.priv_size = sizeof(DrawBoxContext),
+ .priv_class = &drawbox_class,
.init = init,
.query_formats = query_formats,
- .inputs = (AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .config_props = config_input,
- .get_video_buffer = avfilter_null_get_video_buffer,
- .start_frame = avfilter_null_start_frame,
- .draw_slice = draw_slice,
- .end_frame = avfilter_null_end_frame,
- .min_perms = AV_PERM_WRITE | AV_PERM_READ,
- .rej_perms = AV_PERM_PRESERVE },
- { .name = NULL}},
- .outputs = (AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO, },
- { .name = NULL}},
+ .inputs = avfilter_vf_drawbox_inputs,
+ .outputs = avfilter_vf_drawbox_outputs,
};
projects / ffmpeg / blobdiff