/*
* Copyright (c) 2007 Bobby Bingham
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
*
- * 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
return 0;
}
-static void start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
+static int start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
{
SliceContext *slice = link->dst->priv;
slice->h = FFMAX(8, slice->h & (-1 << slice->vshift));
av_log(link->dst, AV_LOG_DEBUG, "h:%d\n", slice->h);
+ link->cur_buf = NULL;
- ff_start_frame(link->dst->outputs[0], picref);
+ return ff_start_frame(link->dst->outputs[0], picref);
}
-static void draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
+static int draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
{
SliceContext *slice = link->dst->priv;
- int y2;
+ int y2, ret = 0;
if (slice_dir == 1) {
- for (y2 = y; y2 + slice->h <= y + h; y2 += slice->h)
- ff_draw_slice(link->dst->outputs[0], y2, slice->h, slice_dir);
+ for (y2 = y; y2 + slice->h <= y + h; y2 += slice->h) {
+ ret = ff_draw_slice(link->dst->outputs[0], y2, slice->h, slice_dir);
+ if (ret < 0)
+ return ret;
+ }
if (y2 < y + h)
- ff_draw_slice(link->dst->outputs[0], y2, y + h - y2, slice_dir);
+ return ff_draw_slice(link->dst->outputs[0], y2, y + h - y2, slice_dir);
} else if (slice_dir == -1) {
- for (y2 = y + h; y2 - slice->h >= y; y2 -= slice->h)
- ff_draw_slice(link->dst->outputs[0], y2 - slice->h, slice->h, slice_dir);
+ for (y2 = y + h; y2 - slice->h >= y; y2 -= slice->h) {
+ ret = ff_draw_slice(link->dst->outputs[0], y2 - slice->h, slice->h, slice_dir);
+ if (ret < 0)
+ return ret;
+ }
if (y2 > y)
- ff_draw_slice(link->dst->outputs[0], y, y2 - y, slice_dir);
+ return ff_draw_slice(link->dst->outputs[0], y, y2 - y, slice_dir);
}
+ return 0;
}
AVFilter avfilter_vf_slicify = {
.priv_size = sizeof(SliceContext),
- .inputs = (AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .get_video_buffer = ff_null_get_video_buffer,
- .start_frame = start_frame,
- .draw_slice = draw_slice,
- .config_props = config_props,
- .end_frame = ff_null_end_frame, },
- { .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 = start_frame,
+ .draw_slice = draw_slice,
+ .config_props = config_props,
+ .end_frame = ff_null_end_frame, },
+ { .name = NULL}},
+ .outputs = (const AVFilterPad[]) {{ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO, },
+ { .name = NULL}},
};