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lavfi: add haldclutsrc filter.

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This commit is contained in:
Clément Bœsch 2013-05-23 10:13:35 +02:00
parent 1bbb46ff71
commit 3cec29cf59
5 changed files with 151 additions and 4 deletions
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12
doc/filters.texi
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@ -7401,10 +7401,12 @@ 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, smptehdbars, testsrc
@section color, haldclutsrc, nullsrc, rgbtestsrc, smptebars, smptehdbars, testsrc
The @code{color} source provides an uniformly colored input.
The @code{haldclutsrc} source provides an identity Hald CLUT.
The @code{nullsrc} source returns unprocessed video frames. It is
mainly useful to be employed in analysis / debugging tools, or as the
source for filters which ignore the input data.
@ -7433,11 +7435,19 @@ source. It can be the name of a color (case insensitive match) or a
0xRRGGBB[AA] sequence, possibly followed by an alpha specifier. The
default value is "black".
@item level
Specify the level of the Hald CLUT, only available in the @code{haldclutsrc}
source. A level of @code{N} generates a picture of @code{N*N*N} by @code{N*N*N}
pixels to be used as identity matrix for 3D lookup tables. Each component is
coded on a @code{1/(N*N)} scale.
@item size, s
Specify the size of the sourced video, it may be a string of the form
@var{width}x@var{height}, or the name of a size abbreviation. The
default value is "320x240".
This option is not available with the @code{haldclutsrc} filter.
@item rate, r
Specify the frame rate of the sourced video, as the number of frames
generated per second. It has to be a string in the format

1
libavfilter/Makefile
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@ -196,6 +196,7 @@ OBJS-$(CONFIG_ZMQ_FILTER) += f_zmq.o
OBJS-$(CONFIG_CELLAUTO_FILTER) += vsrc_cellauto.o
OBJS-$(CONFIG_COLOR_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_FREI0R_SRC_FILTER) += vf_frei0r.o
OBJS-$(CONFIG_HALDCLUTSRC_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_LIFE_FILTER) += vsrc_life.o
OBJS-$(CONFIG_MANDELBROT_FILTER) += vsrc_mandelbrot.o
OBJS-$(CONFIG_MPTESTSRC_FILTER) += vsrc_mptestsrc.o

1
libavfilter/allfilters.c
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@ -193,6 +193,7 @@ void avfilter_register_all(void)
REGISTER_FILTER(CELLAUTO, cellauto, vsrc);
REGISTER_FILTER(COLOR, color, vsrc);
REGISTER_FILTER(FREI0R, frei0r_src, vsrc);
REGISTER_FILTER(HALDCLUTSRC, haldclutsrc, vsrc);
REGISTER_FILTER(LIFE, life, vsrc);
REGISTER_FILTER(MANDELBROT, mandelbrot, vsrc);
REGISTER_FILTER(MPTESTSRC, mptestsrc, vsrc);

4
libavfilter/version.h
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@ -30,8 +30,8 @@
#include "libavutil/avutil.h"
#define LIBAVFILTER_VERSION_MAJOR 3
#define LIBAVFILTER_VERSION_MINOR 70
#define LIBAVFILTER_VERSION_MICRO 101
#define LIBAVFILTER_VERSION_MINOR 71
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
LIBAVFILTER_VERSION_MINOR, \

137
libavfilter/vsrc_testsrc.c
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@ -71,20 +71,26 @@ typedef struct {
/* only used by rgbtest */
uint8_t rgba_map[4];
/* only used by haldclut */
int level;
} TestSourceContext;
#define OFFSET(x) offsetof(TestSourceContext, x)
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
#define COMMON_OPTIONS \
#define SIZE_OPTIONS \
{ "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0, FLAGS },\
{ "s", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0, FLAGS },\
#define COMMON_OPTIONS_NOSIZE \
{ "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, FLAGS },\
{ "r", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"}, 0, 0, FLAGS },\
{ "duration", "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS },\
{ "d", "set video duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64 = -1}, -1, INT64_MAX, FLAGS },\
{ "sar", "set video sample aspect ratio", OFFSET(sar), AV_OPT_TYPE_RATIONAL, {.dbl= 1}, 0, INT_MAX, FLAGS },
#define COMMON_OPTIONS SIZE_OPTIONS COMMON_OPTIONS_NOSIZE
static const AVOption options[] = {
COMMON_OPTIONS
@ -269,6 +275,135 @@ AVFilter avfilter_vsrc_color = {
#endif /* CONFIG_COLOR_FILTER */
#if CONFIG_HALDCLUTSRC_FILTER
static const AVOption haldclutsrc_options[] = {
{ "level", "set level", OFFSET(level), AV_OPT_TYPE_INT, {.i64 = 6}, 2, 8, FLAGS },
COMMON_OPTIONS
{ NULL }
};
AVFILTER_DEFINE_CLASS(haldclutsrc);
static void haldclutsrc_fill_picture(AVFilterContext *ctx, AVFrame *frame)
{
int i, j, k, x = 0, y = 0, is16bit = 0, step;
uint32_t alpha = 0;
const TestSourceContext *hc = ctx->priv;
int level = hc->level;
float scale;
const int w = frame->width;
const int h = frame->height;
const uint8_t *data = frame->data[0];
const int linesize = frame->linesize[0];
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
uint8_t rgba_map[4];
av_assert0(w == h && w == level*level*level);
ff_fill_rgba_map(rgba_map, frame->format);
switch (frame->format) {
case AV_PIX_FMT_RGB48:
case AV_PIX_FMT_BGR48:
case AV_PIX_FMT_RGBA64:
case AV_PIX_FMT_BGRA64:
is16bit = 1;
alpha = 0xffff;
break;
case AV_PIX_FMT_RGBA:
case AV_PIX_FMT_BGRA:
case AV_PIX_FMT_ARGB:
case AV_PIX_FMT_ABGR:
alpha = 0xff;
break;
}
step = av_get_padded_bits_per_pixel(desc) >> (3 + is16bit);
scale = ((float)(1 << (8*(is16bit+1))) - 1) / (level*level - 1);
#define LOAD_CLUT(nbits) do { \
uint##nbits##_t *dst = ((uint##nbits##_t *)(data + y*linesize)) + x*step; \
dst[rgba_map[0]] = av_clip_uint##nbits(i * scale); \
dst[rgba_map[1]] = av_clip_uint##nbits(j * scale); \
dst[rgba_map[2]] = av_clip_uint##nbits(k * scale); \
if (step == 4) \
dst[rgba_map[3]] = alpha; \
} while (0)
level *= level;
for (k = 0; k < level; k++) {
for (j = 0; j < level; j++) {
for (i = 0; i < level; i++) {
if (!is16bit)
LOAD_CLUT(8);
else
LOAD_CLUT(16);
if (++x == w) {
x = 0;
y++;
}
}
}
}
}
static av_cold int haldclutsrc_init(AVFilterContext *ctx)
{
TestSourceContext *hc = ctx->priv;
hc->fill_picture_fn = haldclutsrc_fill_picture;
hc->draw_once = 1;
return init(ctx);
}
static int haldclutsrc_query_formats(AVFilterContext *ctx)
{
static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA,
AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR,
AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR,
AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0,
AV_PIX_FMT_RGB48, AV_PIX_FMT_BGR48,
AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64,
AV_PIX_FMT_NONE,
};
ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
return 0;
}
static int haldclutsrc_config_props(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
TestSourceContext *hc = ctx->priv;
hc->w = hc->h = hc->level * hc->level * hc->level;
return config_props(outlink);
}
static const AVFilterPad haldclutsrc_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.request_frame = request_frame,
.config_props = haldclutsrc_config_props,
},
{ NULL }
};
AVFilter avfilter_vsrc_haldclutsrc = {
.name = "haldclutsrc",
.description = NULL_IF_CONFIG_SMALL("Provide an identity Hald CLUT."),
.priv_class = &haldclutsrc_class,
.priv_size = sizeof(TestSourceContext),
.init = haldclutsrc_init,
.uninit = uninit,
.query_formats = haldclutsrc_query_formats,
.inputs = NULL,
.outputs = haldclutsrc_outputs,
};
#endif /* CONFIG_HALDCLUTSRC_FILTER */
#if CONFIG_NULLSRC_FILTER
#define nullsrc_options options