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avfilter: add yuvtestsrc source filter

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This commit is contained in:
Paul B Mahol 2016-08-24 18:55:05 +02:00
parent 5d7743019b
commit feb2ea6e09
5 changed files with 184 additions and 1 deletions
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1
Changelog
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@ -21,6 +21,7 @@ version <next>:
- maskedclamp filter
- hysteresis filter
- lut2 filter
- yuvtestsrc filter
version 3.1:

6
doc/filters.texi
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@ -14867,7 +14867,8 @@ ffplay -f lavfi life=s=300x200:mold=10:r=60:ratio=0.1:death_color=#C83232:life_c
@anchor{smptehdbars}
@anchor{testsrc}
@anchor{testsrc2}
@section allrgb, allyuv, color, haldclutsrc, nullsrc, rgbtestsrc, smptebars, smptehdbars, testsrc, testsrc2
@anchor{yuvtestsrc}
@section allrgb, allyuv, color, haldclutsrc, nullsrc, rgbtestsrc, smptebars, smptehdbars, testsrc, testsrc2, yuvtestsrc
The @code{allrgb} source returns frames of size 4096x4096 of all rgb colors.
@ -14900,6 +14901,9 @@ The @code{testsrc2} source is similar to testsrc, but supports more
pixel formats instead of just @code{rgb24}. This allows using it as an
input for other tests without requiring a format conversion.
The @code{yuvtestsrc} source generates an YUV test pattern. You should
see a y, cb and cr stripe from top to bottom.
The sources accept the following parameters:
@table @option

1
libavfilter/Makefile
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@ -315,6 +315,7 @@ OBJS-$(CONFIG_SMPTEBARS_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_SMPTEHDBARS_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_TESTSRC_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_TESTSRC2_FILTER) += vsrc_testsrc.o
OBJS-$(CONFIG_YUVTESTSRC_FILTER) += vsrc_testsrc.o
# multimedia filters
OBJS-$(CONFIG_ADRAWGRAPH_FILTER) += f_drawgraph.o

1
libavfilter/allfilters.c
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@ -330,6 +330,7 @@ void avfilter_register_all(void)
REGISTER_FILTER(SMPTEHDBARS, smptehdbars, vsrc);
REGISTER_FILTER(TESTSRC, testsrc, vsrc);
REGISTER_FILTER(TESTSRC2, testsrc2, vsrc);
REGISTER_FILTER(YUVTESTSRC, yuvtestsrc, vsrc);
REGISTER_FILTER(NULLSINK, nullsink, vsink);

176
libavfilter/vsrc_testsrc.c
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@ -1070,6 +1070,182 @@ AVFilter ff_vsrc_rgbtestsrc = {
#endif /* CONFIG_RGBTESTSRC_FILTER */
#if CONFIG_YUVTESTSRC_FILTER
#define yuvtestsrc_options options
AVFILTER_DEFINE_CLASS(yuvtestsrc);
static void yuvtest_fill_picture8(AVFilterContext *ctx, AVFrame *frame)
{
int x, y, w = frame->width, h = frame->height / 3;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
const int factor = 1 << desc->comp[0].depth;
const int mid = 1 << (desc->comp[0].depth - 1);
uint8_t *ydst = frame->data[0];
uint8_t *udst = frame->data[1];
uint8_t *vdst = frame->data[2];
int ylinesize = frame->linesize[0];
int ulinesize = frame->linesize[1];
int vlinesize = frame->linesize[2];
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++) {
int c = factor * x / w;
ydst[x] = c;
udst[x] = mid;
vdst[x] = mid;
}
ydst += ylinesize;
udst += ulinesize;
vdst += vlinesize;
}
h += h;
for (; y < h; y++) {
for (x = 0; x < w; x++) {
int c = factor * x / w;
ydst[x] = mid;
udst[x] = c;
vdst[x] = mid;
}
ydst += ylinesize;
udst += ulinesize;
vdst += vlinesize;
}
for (; y < frame->height; y++) {
for (x = 0; x < w; x++) {
int c = factor * x / w;
ydst[x] = mid;
udst[x] = mid;
vdst[x] = c;
}
ydst += ylinesize;
udst += ulinesize;
vdst += vlinesize;
}
}
static void yuvtest_fill_picture16(AVFilterContext *ctx, AVFrame *frame)
{
int x, y, w = frame->width, h = frame->height / 3;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(frame->format);
const int factor = 1 << desc->comp[0].depth;
const int mid = 1 << (desc->comp[0].depth - 1);
uint16_t *ydst = (uint16_t *)frame->data[0];
uint16_t *udst = (uint16_t *)frame->data[1];
uint16_t *vdst = (uint16_t *)frame->data[2];
int ylinesize = frame->linesize[0] / 2;
int ulinesize = frame->linesize[1] / 2;
int vlinesize = frame->linesize[2] / 2;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++) {
int c = factor * x / w;
ydst[x] = c;
udst[x] = mid;
vdst[x] = mid;
}
ydst += ylinesize;
udst += ulinesize;
vdst += vlinesize;
}
h += h;
for (; y < h; y++) {
for (x = 0; x < w; x++) {
int c = factor * x / w;
ydst[x] = mid;
udst[x] = c;
vdst[x] = mid;
}
ydst += ylinesize;
udst += ulinesize;
vdst += vlinesize;
}
for (; y < frame->height; y++) {
for (x = 0; x < w; x++) {
int c = factor * x / w;
ydst[x] = mid;
udst[x] = mid;
vdst[x] = c;
}
ydst += ylinesize;
udst += ulinesize;
vdst += vlinesize;
}
}
static av_cold int yuvtest_init(AVFilterContext *ctx)
{
TestSourceContext *test = ctx->priv;
test->draw_once = 1;
return init(ctx);
}
static int yuvtest_query_formats(AVFilterContext *ctx)
{
static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV444P10,
AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14,
AV_PIX_FMT_YUV444P16,
AV_PIX_FMT_NONE
};
AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
if (!fmts_list)
return AVERROR(ENOMEM);
return ff_set_common_formats(ctx, fmts_list);
}
static int yuvtest_config_props(AVFilterLink *outlink)
{
TestSourceContext *test = outlink->src->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format);
test->fill_picture_fn = desc->comp[0].depth > 8 ? yuvtest_fill_picture16 : yuvtest_fill_picture8;
return config_props(outlink);
}
static const AVFilterPad avfilter_vsrc_yuvtestsrc_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.request_frame = request_frame,
.config_props = yuvtest_config_props,
},
{ NULL }
};
AVFilter ff_vsrc_yuvtestsrc = {
.name = "yuvtestsrc",
.description = NULL_IF_CONFIG_SMALL("Generate YUV test pattern."),
.priv_size = sizeof(TestSourceContext),
.priv_class = &yuvtestsrc_class,
.init = yuvtest_init,
.uninit = uninit,
.query_formats = yuvtest_query_formats,
.inputs = NULL,
.outputs = avfilter_vsrc_yuvtestsrc_outputs,
};
#endif /* CONFIG_YUVTESTSRC_FILTER */
#if CONFIG_SMPTEBARS_FILTER || CONFIG_SMPTEHDBARS_FILTER
static const uint8_t rainbow[7][4] = {