* Copyright (c) 2002 Jindrich Makovicka <makovick@gmail.com>
* 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.
*/
for (x = logo_x1+1,
xdst = dst+logo_x1+1,
xsrc = src+logo_x1+1; x < logo_x2-1; x++, xdst++, xsrc++) {
- interp = (topleft[src_linesize*(y-logo_y -yclipt)] +
- topleft[src_linesize*(y-logo_y-1-yclipt)] +
- topleft[src_linesize*(y-logo_y+1-yclipt)]) * (logo_w-(x-logo_x))/logo_w
- + (topright[src_linesize*(y-logo_y-yclipt)] +
- topright[src_linesize*(y-logo_y-1-yclipt)] +
- topright[src_linesize*(y-logo_y+1-yclipt)]) * (x-logo_x)/logo_w
- + (topleft[x-logo_x-xclipl] +
- topleft[x-logo_x-1-xclipl] +
- topleft[x-logo_x+1-xclipl]) * (logo_h-(y-logo_y))/logo_h
- + (botleft[x-logo_x-xclipl] +
- botleft[x-logo_x-1-xclipl] +
- botleft[x-logo_x+1-xclipl]) * (y-logo_y)/logo_h;
+ interp =
+ (topleft[src_linesize*(y-logo_y -yclipt)] +
+ topleft[src_linesize*(y-logo_y-1-yclipt)] +
+ topleft[src_linesize*(y-logo_y+1-yclipt)]) * (logo_w-(x-logo_x))/logo_w
+ +
+ (topright[src_linesize*(y-logo_y-yclipt)] +
+ topright[src_linesize*(y-logo_y-1-yclipt)] +
+ topright[src_linesize*(y-logo_y+1-yclipt)]) * (x-logo_x)/logo_w
+ +
+ (topleft[x-logo_x-xclipl] +
+ topleft[x-logo_x-1-xclipl] +
+ topleft[x-logo_x+1-xclipl]) * (logo_h-(y-logo_y))/logo_h
+ +
+ (botleft[x-logo_x-xclipl] +
+ botleft[x-logo_x-1-xclipl] +
+ botleft[x-logo_x+1-xclipl]) * (y-logo_y)/logo_h;
interp /= 6;
if (y >= logo_y+band && y < logo_y+logo_h-band &&
} DelogoContext;
#define OFFSET(x) offsetof(DelogoContext, x)
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
static const AVOption delogo_options[]= {
- {"x", "set logo x position", OFFSET(x), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX },
- {"y", "set logo y position", OFFSET(y), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX },
- {"w", "set logo width", OFFSET(w), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX },
- {"h", "set logo height", OFFSET(h), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX },
- {"band", "set delogo area band size", OFFSET(band), AV_OPT_TYPE_INT, {.i64 = 4}, -1, INT_MAX },
- {"t", "set delogo area band size", OFFSET(band), AV_OPT_TYPE_INT, {.i64 = 4}, -1, INT_MAX },
- {"show", "show delogo area", OFFSET(show), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1 },
+ {"x", "set logo x position", OFFSET(x), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS},
+ {"y", "set logo y position", OFFSET(y), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS},
+ {"w", "set logo width", OFFSET(w), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS},
+ {"h", "set logo height", OFFSET(h), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, FLAGS},
+ {"band", "set delogo area band size", OFFSET(band), AV_OPT_TYPE_INT, {.i64 = 4}, -1, INT_MAX, FLAGS},
+ {"t", "set delogo area band size", OFFSET(band), AV_OPT_TYPE_INT, {.i64 = 4}, -1, INT_MAX, FLAGS},
+ {"show", "show delogo area", OFFSET(show), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, FLAGS},
{NULL},
};
-static const char *delogo_get_name(void *ctx)
-{
- return "delogo";
-}
-
-static const AVClass delogo_class = {
- .class_name = "DelogoContext",
- .item_name = delogo_get_name,
- .option = delogo_options,
-};
+AVFILTER_DEFINE_CLASS(delogo);
static int query_formats(AVFilterContext *ctx)
{
if (ret == 5) {
if (delogo->band < 0)
delogo->show = 1;
- } else if ((ret = (av_set_options_string(delogo, args, "=", ":"))) < 0) {
- av_log(ctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args);
+ } else if ((ret = (av_set_options_string(delogo, args, "=", ":"))) < 0)
return ret;
- }
#define CHECK_UNSET_OPT(opt) \
if (delogo->opt == -1) { \
if (delogo->show)
delogo->band = 4;
- av_log(ctx, AV_LOG_DEBUG, "x:%d y:%d, w:%d h:%d band:%d show:%d\n",
+ av_log(ctx, AV_LOG_VERBOSE, "x:%d y:%d, w:%d h:%d band:%d show:%d\n",
delogo->x, delogo->y, delogo->w, delogo->h, delogo->band, delogo->show);
delogo->w += delogo->band*2;
AVFilterLink *outlink = inlink->dst->outputs[0];
AVFilterBufferRef *inpicref = inlink ->cur_buf;
AVFilterBufferRef *outpicref = outlink->out_buf;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
int direct = inpicref->buf == outpicref->buf;
- int hsub0 = av_pix_fmt_descriptors[inlink->format].log2_chroma_w;
- int vsub0 = av_pix_fmt_descriptors[inlink->format].log2_chroma_h;
+ int hsub0 = desc->log2_chroma_w;
+ int vsub0 = desc->log2_chroma_h;
int plane;
int ret;
return 0;
}
+static const AVFilterPad avfilter_vf_delogo_inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .get_video_buffer = ff_null_get_video_buffer,
+ .start_frame = ff_inplace_start_frame,
+ .draw_slice = null_draw_slice,
+ .end_frame = end_frame,
+ .min_perms = AV_PERM_WRITE | AV_PERM_READ,
+ },
+ { NULL }
+};
+
+static const AVFilterPad avfilter_vf_delogo_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ },
+ { NULL }
+};
+
AVFilter avfilter_vf_delogo = {
.name = "delogo",
.description = NULL_IF_CONFIG_SMALL("Remove logo from input video."),
.init = init,
.query_formats = query_formats,
- .inputs = (const AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .get_video_buffer = ff_null_get_video_buffer,
- .start_frame = ff_inplace_start_frame,
- .draw_slice = null_draw_slice,
- .end_frame = end_frame,
- .min_perms = AV_PERM_WRITE | AV_PERM_READ,
- .rej_perms = AV_PERM_PRESERVE },
- { .name = NULL}},
- .outputs = (const AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO, },
- { .name = NULL}},
+ .inputs = avfilter_vf_delogo_inputs,
+ .outputs = avfilter_vf_delogo_outputs,
};
projects / ffmpeg / blobdiff