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lavfi/tile: make color of blank/unused area configurable 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-08-14 21:51:27 +00:00
parent d7ed473d5c
commit ef6718a5f7
2 changed files with 7 additions and 2 deletions
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4
doc/filters.texi
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@ -7119,6 +7119,10 @@ Set the inner border thickness (i.e. the number of pixels between frames). For
more advanced padding options (such as having different values for the edges),
refer to the pad video filter.
@item color
Specify the color of the unused area, it can be the name of a color
(case insensitive match) or a 0xRRGGBB[AA] sequence.
The default value of @var{color} is "black".
@end table
@subsection Examples

5
libavfilter/vf_tile.c
View File

@ -41,6 +41,7 @@ typedef struct {
FFDrawContext draw;
FFDrawColor blank;
AVFrame *out_ref;
uint8_t rgba_color[4];
} TileContext;
#define REASONABLE_SIZE 1024
@ -57,6 +58,7 @@ static const AVOption tile_options[] = {
AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1024, FLAGS },
{ "padding", "set inner border thickness in pixels", OFFSET(padding),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1024, FLAGS },
{ "color", "set the color of the unused area", OFFSET(rgba_color), AV_OPT_TYPE_COLOR, {.str = "black"}, .flags = FLAGS },
{NULL},
};
@ -113,8 +115,7 @@ static int config_props(AVFilterLink *outlink)
outlink->frame_rate = av_mul_q(inlink->frame_rate,
(AVRational){ 1, tile->nb_frames });
ff_draw_init(&tile->draw, inlink->format, 0);
/* TODO make the color an option, or find an unified way of choosing it */
ff_draw_color(&tile->draw, &tile->blank, (uint8_t[]){ 0, 0, 0, -1 });
ff_draw_color(&tile->draw, &tile->blank, tile->rgba_color);
outlink->flags |= FF_LINK_FLAG_REQUEST_LOOP;