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lavfi: add smptehdbars source

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol
2013-04-11 15:49:44 +00:00
parent 2952ed2b60
commit 03e2ec32b8
6 changed files with 158 additions and 34 deletions
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1
Changelog
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@ -21,6 +21,7 @@ version <next>:
- uniform options syntax across all filters
- telecine filter
- new interlace filter
- smptehdbars source
version 1.2:

5
doc/filters.texi
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@ -6194,7 +6194,7 @@ ffplay -f lavfi life=s=300x200:mold=10:r=60:ratio=0.1:death_color=#C83232:life_c
@end example
@end itemize
@section color, nullsrc, rgbtestsrc, smptebars, testsrc
@section color, nullsrc, rgbtestsrc, smptebars, smptehdbars, testsrc
The @code{color} source provides an uniformly colored input.
@ -6209,6 +6209,9 @@ stripe from top to bottom.
The @code{smptebars} source generates a color bars pattern, based on
the SMPTE Engineering Guideline EG 1-1990.
The @code{smptehdbars} source generates a color bars pattern, based on
the SMPTE RP 219-2002.
The @code{testsrc} source generates a test video pattern, showing a
color pattern, a scrolling gradient and a timestamp. This is mainly
intended for testing purposes.

1
libavfilter/Makefile
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@ -183,6 +183,7 @@ OBJS-$(CONFIG_MPTESTSRC_FILTER) += vsrc_mptestsrc.o
OBJS-$(CONFIG_NULLSRC_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_RGBTESTSRC_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_SMPTEBARS_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_SMPTEHDBARS_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_TESTSRC_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_NULLSINK_FILTER) += vsink_nullsink.o

1
libavfilter/allfilters.c
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@ -180,6 +180,7 @@ void avfilter_register_all(void)
REGISTER_FILTER(NULLSRC, nullsrc, vsrc);
REGISTER_FILTER(RGBTESTSRC, rgbtestsrc, vsrc);
REGISTER_FILTER(SMPTEBARS, smptebars, vsrc);
REGISTER_FILTER(SMPTEHDBARS, smptehdbars, vsrc);
REGISTER_FILTER(TESTSRC, testsrc, vsrc);
REGISTER_FILTER(NULLSINK, nullsink, vsink);

4
libavfilter/version.h
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@ -29,8 +29,8 @@
#include "libavutil/avutil.h"
#define LIBAVFILTER_VERSION_MAJOR 3
#define LIBAVFILTER_VERSION_MINOR 53
#define LIBAVFILTER_VERSION_MICRO 101
#define LIBAVFILTER_VERSION_MINOR 54
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
LIBAVFILTER_VERSION_MINOR, \

180
libavfilter/vsrc_testsrc.c
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@ -30,7 +30,7 @@
* rgbtestsrc is ported from MPlayer libmpcodecs/vf_rgbtest.c by
* Michael Niedermayer.
*
* smptebars is by Paul B Mahol.
* smptebars and smptehdbars is by Paul B Mahol.
*/
#include <float.h>
@ -654,10 +654,7 @@ AVFilter avfilter_vsrc_rgbtestsrc = {
#endif /* CONFIG_RGBTESTSRC_FILTER */
#if CONFIG_SMPTEBARS_FILTER
#define smptebars_options options
AVFILTER_DEFINE_CLASS(smptebars);
#if CONFIG_SMPTEBARS_FILTER || CONFIG_SMPTEHDBARS_FILTER
static const uint8_t rainbow[7][4] = {
{ 191, 191, 191, 255 }, /* gray */
@ -690,6 +687,17 @@ static const uint8_t pos4ire[4] = { 29, 29, 29, 255 }; /* 11.5% intensity bla
static const uint8_t i_pixel[4] = { 0, 68, 130, 255 };
static const uint8_t q_pixel[4] = { 67, 0, 130, 255 };
static const uint8_t gray40[4] = { 102, 102, 102, 255 };
static const uint8_t gray15[4] = { 38, 38, 38, 255 };
static const uint8_t cyan[4] = { 0, 255, 255, 255 };
static const uint8_t yellow[4] = { 255, 255, 0, 255 };
static const uint8_t blue[4] = { 0, 0, 255, 255 };
static const uint8_t red[4] = { 255, 0, 0, 255 };
static const uint8_t black0[4] = { 5, 5, 5, 255 };
static const uint8_t black2[4] = { 10, 10, 10, 255 };
static const uint8_t black4[4] = { 15, 15, 15, 255 };
static const uint8_t neg2[4] = { 0, 0, 0, 255 };
static void inline draw_bar(TestSourceContext *test, const uint8_t *color,
unsigned x, unsigned y, unsigned w, unsigned h,
AVFrame *frame)
@ -709,6 +717,37 @@ static void inline draw_bar(TestSourceContext *test, const uint8_t *color,
frame->data, frame->linesize, x, y, w, h);
}
static int smptebars_query_formats(AVFilterContext *ctx)
{
ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
return 0;
}
static int smptebars_config_props(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
TestSourceContext *test = ctx->priv;
ff_draw_init(&test->draw, outlink->format, 0);
return config_props(outlink);
}
static const AVFilterPad smptebars_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.request_frame = request_frame,
.config_props = smptebars_config_props,
},
{ NULL }
};
#if CONFIG_SMPTEHDBARS_FILTER
#define smptebars_options options
AVFILTER_DEFINE_CLASS(smptebars);
static void smptebars_fill_picture(AVFilterContext *ctx, AVFrame *picref)
{
TestSourceContext *test = ctx->priv;
@ -755,32 +794,6 @@ static av_cold int smptebars_init(AVFilterContext *ctx)
return init(ctx);
}
static int smptebars_query_formats(AVFilterContext *ctx)
{
ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
return 0;
}
static int smptebars_config_props(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
TestSourceContext *test = ctx->priv;
ff_draw_init(&test->draw, outlink->format, 0);
return config_props(outlink);
}
static const AVFilterPad smptebars_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.request_frame = request_frame,
.config_props = smptebars_config_props,
},
{ NULL }
};
AVFilter avfilter_vsrc_smptebars = {
.name = "smptebars",
.description = NULL_IF_CONFIG_SMALL("Generate SMPTE color bars."),
@ -795,3 +808,108 @@ AVFilter avfilter_vsrc_smptebars = {
};
#endif /* CONFIG_SMPTEBARS_FILTER */
#if CONFIG_SMPTEHDBARS_FILTER
#define smptehdbars_options options
AVFILTER_DEFINE_CLASS(smptehdbars);
static void smptehdbars_fill_picture(AVFilterContext *ctx, AVFrame *picref)
{
TestSourceContext *test = ctx->priv;
int d_w, r_w, r_h, l_w, i, tmp, x = 0, y = 0;
const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(picref->format);
d_w = FFALIGN(test->w / 8, 1 << pixdesc->log2_chroma_w);
r_h = FFALIGN(test->h * 7 / 12, 1 << pixdesc->log2_chroma_h);
draw_bar(test, gray40, x, 0, d_w, r_h, picref);
x += d_w;
r_w = FFALIGN((((test->w + 3) / 4) * 3) / 7, 1 << pixdesc->log2_chroma_w);
for (i = 0; i < 7; i++) {
draw_bar(test, rainbow[i], x, 0, r_w, r_h, picref);
x += r_w;
}
draw_bar(test, gray40, x, 0, test->w - x, r_h, picref);
y = r_h;
r_h = FFALIGN(test->h / 12, 1 << pixdesc->log2_chroma_h);
draw_bar(test, cyan, 0, y, d_w, r_h, picref);
x = d_w;
draw_bar(test, i_pixel, x, y, r_w, r_h, picref);
x += r_w;
tmp = r_w * 6;
draw_bar(test, rainbow[0], x, y, tmp, r_h, picref);
x += tmp;
l_w = x;
draw_bar(test, blue, x, y, test->w - x, r_h, picref);
y += r_h;
draw_bar(test, yellow, 0, y, d_w, r_h, picref);
x = d_w;
draw_bar(test, q_pixel, x, y, r_w, r_h, picref);
x += r_w;
for (i = 0; i < tmp; i += 1 << pixdesc->log2_chroma_w) {
uint8_t yramp[4] = {0};
yramp[0] =
yramp[1] =
yramp[2] = i * 255 / tmp;
yramp[3] = 255;
draw_bar(test, yramp, x, y, 1 << pixdesc->log2_chroma_w, r_h, picref);
x += 1 << pixdesc->log2_chroma_w;
}
draw_bar(test, red, x, y, test->w - x, r_h, picref);
y += r_h;
draw_bar(test, gray15, 0, y, d_w, test->h - y, picref);
x = d_w;
tmp = FFALIGN(r_w * 3 / 2, 1 << pixdesc->log2_chroma_w);
draw_bar(test, black0, x, y, tmp, test->h - y, picref);
x += tmp;
tmp = FFALIGN(r_w * 2, 1 << pixdesc->log2_chroma_w);
draw_bar(test, white, x, y, tmp, test->h - y, picref);
x += tmp;
tmp = FFALIGN(r_w * 5 / 6, 1 << pixdesc->log2_chroma_w);
draw_bar(test, black0, x, y, tmp, test->h - y, picref);
x += tmp;
tmp = FFALIGN(r_w / 3, 1 << pixdesc->log2_chroma_w);
draw_bar(test, neg2, x, y, tmp, test->h - y, picref);
x += tmp;
draw_bar(test, black0, x, y, tmp, test->h - y, picref);
x += tmp;
draw_bar(test, black2, x, y, tmp, test->h - y, picref);
x += tmp;
draw_bar(test, black0, x, y, tmp, test->h - y, picref);
x += tmp;
draw_bar(test, black4, x, y, tmp, test->h - y, picref);
x += tmp;
r_w = l_w - x;
draw_bar(test, black0, x, y, r_w, test->h - y, picref);
x += r_w;
draw_bar(test, gray15, x, y, test->w - x, test->h - y, picref);
}
static av_cold int smptehdbars_init(AVFilterContext *ctx)
{
TestSourceContext *test = ctx->priv;
test->fill_picture_fn = smptehdbars_fill_picture;
test->draw_once = 1;
return init(ctx);
}
AVFilter avfilter_vsrc_smptehdbars = {
.name = "smptehdbars",
.description = NULL_IF_CONFIG_SMALL("Generate SMPTE HD color bars."),
.priv_size = sizeof(TestSourceContext),
.init = smptehdbars_init,
.uninit = uninit,
.query_formats = smptebars_query_formats,
.inputs = NULL,
.outputs = smptebars_outputs,
.priv_class = &smptebars_class,
};
#endif /* CONFIG_SMPTEHDBARS_FILTER */
#endif /* CONFIG_SMPTEHDBARS_FILTER || CONFIG_SMPTEHDBARS_FILTER */