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lavfi/testsrc: add support for color interactive command

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This commit is contained in:
Stefano Sabatini 2013-04-24 11:14:27 +02:00
parent ce322f4c19
commit f51aa92b0f
3 changed files with 45 additions and 1 deletions
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10
doc/filters.texi
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@ -7350,6 +7350,16 @@ the @code{geq} filter:
nullsrc=s=256x256, geq=random(1)*255:128:128
@end example
@subsection Commands
The @code{color} source supports the following commands:
@table @option
@item c, color
Set the color of the created image. Accepts the same syntax of the
corresponding @option{color} option.
@end table
@c man end VIDEO SOURCES
@chapter Video Sinks

2
libavfilter/version.h
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@ -30,7 +30,7 @@
#define LIBAVFILTER_VERSION_MAJOR 3
#define LIBAVFILTER_VERSION_MINOR 63
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_MICRO 101
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
LIBAVFILTER_VERSION_MINOR, \

34
libavfilter/vsrc_testsrc.c
View File

@ -57,6 +57,7 @@ typedef struct {
AVRational sar; ///< sample aspect ratio
int nb_decimals;
int draw_once; ///< draw only the first frame, always put out the same picture
int draw_once_reset; ///< draw only the first frame or in case of reset
AVFrame *picref; ///< cached reference containing the painted picture
void (* fill_picture_fn)(AVFilterContext *ctx, AVFrame *frame);
@ -166,6 +167,10 @@ static int request_frame(AVFilterLink *outlink)
return AVERROR_EOF;
if (test->draw_once) {
if (test->draw_once_reset) {
av_frame_free(&test->picref);
test->draw_once_reset = 0;
}
if (!test->picref) {
test->picref =
ff_get_video_buffer(outlink, test->w, test->h);
@ -241,6 +246,34 @@ static int color_config_props(AVFilterLink *inlink)
return 0;
}
static int color_process_command(AVFilterContext *ctx, const char *cmd, const char *args,
char *res, int res_len, int flags)
{
TestSourceContext *test = ctx->priv;
int ret;
if (!strcmp(cmd, "color") || !strcmp(cmd, "c")) {
char *color_str;
uint8_t color_rgba[4];
ret = av_parse_color(color_rgba, args, -1, ctx);
if (ret < 0)
return ret;
color_str = av_strdup(args);
if (!color_str)
return AVERROR(ENOMEM);
av_free(test->color_str);
test->color_str = color_str;
memcpy(test->color_rgba, color_rgba, sizeof(color_rgba));
ff_draw_color(&test->draw, &test->color, test->color_rgba);
test->draw_once_reset = 1;
return 0;
}
return AVERROR(ENOSYS);
}
static const AVFilterPad color_outputs[] = {
{
.name = "default",
@ -263,6 +296,7 @@ AVFilter avfilter_vsrc_color = {
.query_formats = color_query_formats,
.inputs = NULL,
.outputs = color_outputs,
.process_command = color_process_command,
};
#endif /* CONFIG_COLOR_FILTER */