* 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 &&
#define OFFSET(x) offsetof(DelogoContext, x)
static const AVOption delogo_options[]= {
- {"x", "set logo x position", OFFSET(x), FF_OPT_TYPE_INT, {-1}, -1, INT_MAX },
- {"y", "set logo y position", OFFSET(y), FF_OPT_TYPE_INT, {-1}, -1, INT_MAX },
- {"w", "set logo width", OFFSET(w), FF_OPT_TYPE_INT, {-1}, -1, INT_MAX },
- {"h", "set logo height", OFFSET(h), FF_OPT_TYPE_INT, {-1}, -1, INT_MAX },
- {"band", "set delogo area band size", OFFSET(band), FF_OPT_TYPE_INT, { 4}, -1, INT_MAX },
- {"t", "set delogo area band size", OFFSET(band), FF_OPT_TYPE_INT, { 4}, -1, INT_MAX },
- {"show", "show delogo area", OFFSET(show), FF_OPT_TYPE_INT, { 0}, 0, 1 },
+ {"x", "set logo x position", OFFSET(x), AV_OPT_TYPE_INT, {.dbl=-1}, -1, INT_MAX },
+ {"y", "set logo y position", OFFSET(y), AV_OPT_TYPE_INT, {.dbl=-1}, -1, INT_MAX },
+ {"w", "set logo width", OFFSET(w), AV_OPT_TYPE_INT, {.dbl=-1}, -1, INT_MAX },
+ {"h", "set logo height", OFFSET(h), AV_OPT_TYPE_INT, {.dbl=-1}, -1, INT_MAX },
+ {"band", "set delogo area band size", OFFSET(band), AV_OPT_TYPE_INT, {.dbl= 4}, -1, INT_MAX },
+ {"t", "set delogo area band size", OFFSET(band), AV_OPT_TYPE_INT, {.dbl= 4}, -1, INT_MAX },
+ {"show", "show delogo area", OFFSET(show), AV_OPT_TYPE_INT, {.dbl= 0}, 0, 1 },
{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 (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;
return 0;
}
-static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref)
+static int null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
{
- AVFilterLink *outlink = inlink->dst->outputs[0];
- AVFilterBufferRef *outpicref;
-
- if (inpicref->perms & AV_PERM_PRESERVE) {
- outpicref = ff_get_video_buffer(outlink, AV_PERM_WRITE,
- outlink->w, outlink->h);
- avfilter_copy_buffer_ref_props(outpicref, inpicref);
- outpicref->video->w = outlink->w;
- outpicref->video->h = outlink->h;
- } else
- outpicref = avfilter_ref_buffer(inpicref, ~0);
-
- outlink->out_buf = outpicref;
- ff_start_frame(outlink, avfilter_ref_buffer(outpicref, ~0));
+ return 0;
}
-static void null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir) { }
-
-static void end_frame(AVFilterLink *inlink)
+static int end_frame(AVFilterLink *inlink)
{
DelogoContext *delogo = inlink->dst->priv;
AVFilterLink *outlink = inlink->dst->outputs[0];
int hsub0 = av_pix_fmt_descriptors[inlink->format].log2_chroma_w;
int vsub0 = av_pix_fmt_descriptors[inlink->format].log2_chroma_h;
int plane;
+ int ret;
for (plane = 0; plane < 4 && inpicref->data[plane]; plane++) {
int hsub = plane == 1 || plane == 2 ? hsub0 : 0;
delogo->show, direct);
}
- ff_draw_slice(outlink, 0, inlink->h, 1);
- ff_end_frame(outlink);
- avfilter_unref_buffer(outpicref);
+ if ((ret = ff_draw_slice(outlink, 0, inlink->h, 1)) < 0 ||
+ (ret = ff_end_frame(outlink)) < 0)
+ return ret;
+ return 0;
}
AVFilter avfilter_vf_delogo = {
.init = init,
.query_formats = query_formats,
- .inputs = (AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .get_video_buffer = ff_null_get_video_buffer,
- .start_frame = 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 = (AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO, },
- { .name = NULL}},
+ .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}},
};
projects / ffmpeg / blobdiff