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avfilter: add zoneplate video test source

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This commit is contained in:
Paul B Mahol 2023-05-06 22:52:47 +02:00
parent 086a0f3e5e
commit 3475c8342c
6 changed files with 300 additions and 2 deletions
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1
Changelog
View file

@ -8,6 +8,7 @@ version <next>:
- afireqsrc audio source filter
- arls filter
- ffmpeg CLI new option: -readrate_initial_burst
- zoneplate video source filter
version 6.0:
- Radiance HDR image support

98
doc/filters.texi
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@ -28083,6 +28083,104 @@ Set max jump for single pan destination. Allowed range is from 1 to 10000.
Set fractal type, can be default @code{carpet} or @code{triangle}.
@end table
@section zoneplate
Generate a zoneplate test video pattern.
This source accepts the following options:
@table @option
@item size, s
Set frame size. For the syntax of this option, check the @ref{video size syntax,,"Video
size" section in the ffmpeg-utils manual,ffmpeg-utils}. Default value is "320x240".
@item rate, r
Set frame rate, expressed as number of frames per second. Default
value is "25".
@item duration, d
Set the duration of the sourced video. See
@ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}
for the accepted syntax.
If not specified, or the expressed duration is negative, the video is
supposed to be generated forever.
@item sar
Set the sample aspect ratio of the sourced video.
@item precision
Set precision in bits for look-up table for sine calculations. Default value is 10.
Allowed range is from 4 to 16.
@item xo
Set horizontal axis offset for output signal. Default value is 0.
@item yo
Set vertical axis offset for output signal. Default value is 0.
@item to
Set time axis offset for output signal. Default value is 0.
@item k0
Set 0-order, constant added to signal phase. Default value is 0.
@item kx
Set 1-order, phase factor multiplier for horizontal axis. Default value is 0.
@item ky
Set 1-order, phase factor multiplier for vertical axis. Default value is 0.
@item kt
Set 1-order, phase factor multiplier for time axis. Default value is 0.
@item kxt, kyt, kxy
Set phase factor multipliers for combination of spatial and temporal axis.
Default value is 0.
@item kx2
Set 2-order, phase factor multiplier for horizontal axis. Default value is 0.
@item ky2
Set 2-order, phase factor multiplier for vertical axis. Default value is 0.
@item kt2
Set 2-order, phase factor multiplier for time axis. Default value is 0.
@item ku
Set the constant added to final phase to produce chroma-blue component of signal.
Default value is 0.
@item kv
Set the constant added to final phase to produce chroma-red component of signal.
Default value is 0.
@end table
@subsection Commands
This source supports the some above options as @ref{commands}.
@subsection Examples
@itemize
@item
Generate horizontal color sine sweep:
@example
zoneplate=ku=512:kv=0:kt2=0:kx2=256:s=wvga:xo=-426:kt=11
@end example
@item
Generate vertical color sine sweep:
@example
zoneplate=ku=512:kv=0:kt2=0:ky2=156:s=wvga:yo=-240:kt=11
@end example
@item
Generate circular zone-plate:
@example
zoneplate=ku=512:kv=100:kt2=0:ky2=256:kx2=556:s=wvga:yo=0:kt=11
@end example
@end itemize
@c man end VIDEO SOURCES
@chapter Video Sinks

1
libavfilter/Makefile
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@ -592,6 +592,7 @@ OBJS-$(CONFIG_SMPTEHDBARS_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_TESTSRC_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_TESTSRC2_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_YUVTESTSRC_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_ZONEPLATE_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_NULLSINK_FILTER) += vsink_nullsink.o

1
libavfilter/allfilters.c
View file

@ -557,6 +557,7 @@ extern const AVFilter ff_vsrc_smptehdbars;
extern const AVFilter ff_vsrc_testsrc;
extern const AVFilter ff_vsrc_testsrc2;
extern const AVFilter ff_vsrc_yuvtestsrc;
extern const AVFilter ff_vsrc_zoneplate;
extern const AVFilter ff_vsink_nullsink;

4
libavfilter/version.h
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@ -31,8 +31,8 @@
#include "version_major.h"
#define LIBAVFILTER_VERSION_MINOR 7
#define LIBAVFILTER_VERSION_MICRO 102
#define LIBAVFILTER_VERSION_MINOR 8
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \

197
libavfilter/vsrc_testsrc.c
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@ -88,6 +88,15 @@ typedef struct TestSourceContext {
/* only used by haldclut */
int level;
/* only used by zoneplate */
int k0, kx, ky, kt;
int kxt, kyt, kxy;
int kx2, ky2, kt2;
int xo, yo, to, kU, kV;
int lut_precision;
uint8_t *lut;
int (*fill_slice_fn)(AVFilterContext *ctx, void *arg, int job, int nb_jobs);
} TestSourceContext;
#define OFFSET(x) offsetof(TestSourceContext, x)
@ -135,6 +144,7 @@ static av_cold void uninit(AVFilterContext *ctx)
TestSourceContext *test = ctx->priv;
av_frame_free(&test->picref);
av_freep(&test->lut);
}
static int config_props(AVFilterLink *outlink)
@ -2049,3 +2059,190 @@ const AVFilter ff_vsrc_colorchart = {
};
#endif /* CONFIG_COLORCHART_FILTER */
#if CONFIG_ZONEPLATE_FILTER
static const AVOption zoneplate_options[] = {
COMMON_OPTIONS
{ "precision", "set LUT precision", OFFSET(lut_precision), AV_OPT_TYPE_INT, {.i64=10}, 4, 16, FLAGS },
{ "xo", "set X-axis offset", OFFSET(xo), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "yo", "set Y-axis offset", OFFSET(yo), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "to", "set T-axis offset", OFFSET(to), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "k0", "set 0-order phase", OFFSET(k0), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "kx", "set 1-order X-axis phase", OFFSET(kx), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "ky", "set 1-order Y-axis phase", OFFSET(ky), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "kt", "set 1-order T-axis phase", OFFSET(kt), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "kxt", "set X-axis*T-axis product phase", OFFSET(kxt), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "kyt", "set Y-axis*T-axis product phase", OFFSET(kyt), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "kxy", "set X-axis*Y-axis product phase", OFFSET(kxy), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "kx2", "set 2-order X-axis phase", OFFSET(kx2), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "ky2", "set 2-order Y-axis phase", OFFSET(ky2), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "kt2", "set 2-order T-axis phase", OFFSET(kt2), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "ku", "set 0-order U-color phase", OFFSET(kU), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ "kv", "set 0-order V-color phase", OFFSET(kV), AV_OPT_TYPE_INT, {.i64=0}, INT_MIN, INT_MAX, FLAGSR },
{ NULL }
};
AVFILTER_DEFINE_CLASS(zoneplate);
#define ZONEPLATE_SLICE(name, type) \
static int zoneplate_fill_slice_##name(AVFilterContext *ctx, \
void *arg, int job, \
int nb_jobs) \
{ \
TestSourceContext *test = ctx->priv; \
AVFrame *frame = arg; \
const int w = frame->width; \
const int h = frame->height; \
const int kxt = test->kxt, kyt = test->kyt, kx2 = test->kx2; \
const int t = test->pts + test->to, k0 = test->k0; \
const int kt = test->kt, kt2 = test->kt2, ky2 = test->ky2; \
const int ky = test->ky, kx = test->kx, kxy = test->kxy; \
const int lut_mask = (1 << test->lut_precision) - 1; \
const int nkt2t = kt2 * t * t, nktt = kt * t; \
const int start = (h * job ) / nb_jobs; \
const int end = (h * (job+1)) / nb_jobs; \
const int ylinesize = frame->linesize[0] / sizeof(type); \
const int ulinesize = frame->linesize[1] / sizeof(type); \
const int vlinesize = frame->linesize[2] / sizeof(type); \
const int xreset = -(w / 2) - test->xo; \
const int yreset = -(h / 2) - test->yo + start; \
const int kU = test->kU, kV = test->kV; \
const int skxy = 0xffff / (w / 2); \
const int skx2 = 0xffff / w; \
const int dkxt = kxt * t; \
type *ydst = ((type *)frame->data[0]) + start * ylinesize; \
type *udst = ((type *)frame->data[1]) + start * ulinesize; \
type *vdst = ((type *)frame->data[2]) + start * vlinesize; \
const type *lut = (const type *)test->lut; \
int akx, akxt, aky, akyt; \
\
aky = start * ky; \
akyt = start * kyt * t; \
\
for (int j = start, y = yreset; j < end; j++, y++) { \
const int dkxy = kxy * y * skxy; \
const int nky2kt2 = (ky2 * y * y) / h + (nkt2t >> 1); \
int akxy = dkxy * xreset; \
\
akx = 0; \
akxt = 0; \
aky += ky; \
akyt += kyt * t; \
\
for (int i = 0, x = xreset; i < w; i++, x++) { \
int phase = k0, uphase = kU, vphase = kV; \
\
akx += kx; \
phase += akx + aky + nktt; \
\
akxt += dkxt; \
akxy += dkxy; \
phase += akxt + akyt; \
phase += akxy >> 16; \
phase += ((kx2 * x * x * skx2) >> 16) + nky2kt2; \
uphase += phase; \
vphase += phase; \
\
ydst[i] = lut[phase & lut_mask]; \
udst[i] = lut[uphase & lut_mask]; \
vdst[i] = lut[vphase & lut_mask]; \
} \
\
ydst += ylinesize; \
udst += ulinesize; \
vdst += vlinesize; \
} \
\
return 0; \
}
ZONEPLATE_SLICE( 8, uint8_t)
ZONEPLATE_SLICE( 9, uint16_t)
ZONEPLATE_SLICE(10, uint16_t)
ZONEPLATE_SLICE(12, uint16_t)
ZONEPLATE_SLICE(14, uint16_t)
ZONEPLATE_SLICE(16, uint16_t)
static void zoneplate_fill_picture(AVFilterContext *ctx, AVFrame *frame)
{
TestSourceContext *test = ctx->priv;
ff_filter_execute(ctx, test->fill_slice_fn, frame, NULL,
FFMIN(frame->height, ff_filter_get_nb_threads(ctx)));
}
static int zoneplate_config_props(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
TestSourceContext *test = ctx->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format);
const int lut_size = 1 << test->lut_precision;
const int depth = desc->comp[0].depth;
uint16_t *lut16;
uint8_t *lut8;
if (av_image_check_size(test->w, test->h, 0, ctx) < 0)
return AVERROR(EINVAL);
test->lut = av_calloc(lut_size, sizeof(*test->lut) * ((depth + 7) / 8));
if (!test->lut)
return AVERROR(ENOMEM);
lut8 = test->lut;
lut16 = (uint16_t *)test->lut;
switch (depth) {
case 8:
for (int i = 0; i < lut_size; i++)
lut8[i] = lrintf(255.f * (0.5f + 0.5f * sinf((2.f * M_PI * i) / lut_size)));
break;
default:
for (int i = 0; i < lut_size; i++)
lut16[i] = lrintf(((1 << depth) - 1) * (0.5f + 0.5f * sinf((2.f * M_PI * i) / lut_size)));
break;
}
test->draw_once = 0;
test->fill_picture_fn = zoneplate_fill_picture;
switch (depth) {
case 8: test->fill_slice_fn = zoneplate_fill_slice_8; break;
case 9: test->fill_slice_fn = zoneplate_fill_slice_9; break;
case 10: test->fill_slice_fn = zoneplate_fill_slice_10; break;
case 12: test->fill_slice_fn = zoneplate_fill_slice_12; break;
case 14: test->fill_slice_fn = zoneplate_fill_slice_14; break;
case 16: test->fill_slice_fn = zoneplate_fill_slice_16; break;
}
return config_props(outlink);
}
static const enum AVPixelFormat zoneplate_pix_fmts[] = {
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV444P9,
AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV444P12,
AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV444P16,
AV_PIX_FMT_NONE,
};
static const AVFilterPad avfilter_vsrc_zoneplate_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = zoneplate_config_props,
},
};
const AVFilter ff_vsrc_zoneplate = {
.name = "zoneplate",
.description = NULL_IF_CONFIG_SMALL("Generate zone-plate."),
.priv_size = sizeof(TestSourceContext),
.priv_class = &zoneplate_class,
.init = init,
.uninit = uninit,
.activate = activate,
.inputs = NULL,
FILTER_OUTPUTS(avfilter_vsrc_zoneplate_outputs),
FILTER_PIXFMTS_ARRAY(zoneplate_pix_fmts),
.flags = AVFILTER_FLAG_SLICE_THREADS,
.process_command = ff_filter_process_command,
};
#endif /* CONFIG_ZONEPLATE_FILTER */