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avfilter/vf_waveform: add invert graticule

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pull/323/head
Paul B Mahol 5 years ago
parent ecc1675368
commit 42974eb13a
2 changed files with 187 additions and 16 deletions
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  1. 3
      doc/filters.texi
  2. 200
      libavfilter/vf_waveform.c

3
doc/filters.texi
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@ -19108,6 +19108,9 @@ Display green graticule showing legal broadcast ranges.
@item orange
Display orange graticule showing legal broadcast ranges.
@item invert
Display invert graticule showing legal broadcast ranges.
@end table
@item opacity, o

200
libavfilter/vf_waveform.c
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@ -66,6 +66,7 @@ enum GraticuleType {
GRAT_NONE,
GRAT_GREEN,
GRAT_ORANGE,
GRAT_INVERT,
NB_GRATICULES
};
@ -114,6 +115,11 @@ typedef struct WaveformContext {
int (*waveform_slice)(AVFilterContext *ctx, void *arg,
int jobnr, int nb_jobs);
void (*graticulef)(struct WaveformContext *s, AVFrame *out);
void (*blend_line)(uint8_t *dst, int size, int linesize, float o1, float o2,
int v, int step);
void (*draw_text)(AVFrame *out, int x, int y, int mult,
float o1, float o2, const char *txt,
const uint8_t color[4]);
const AVPixFmtDescriptor *desc;
const AVPixFmtDescriptor *odesc;
} WaveformContext;
@ -157,6 +163,7 @@ static const AVOption waveform_options[] = {
{ "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64=GRAT_NONE}, 0, 0, FLAGS, "graticule" },
{ "green", NULL, 0, AV_OPT_TYPE_CONST, {.i64=GRAT_GREEN}, 0, 0, FLAGS, "graticule" },
{ "orange", NULL, 0, AV_OPT_TYPE_CONST, {.i64=GRAT_ORANGE}, 0, 0, FLAGS, "graticule" },
{ "invert", NULL, 0, AV_OPT_TYPE_CONST, {.i64=GRAT_INVERT}, 0, 0, FLAGS, "graticule" },
{ "opacity", "set graticule opacity", OFFSET(opacity), AV_OPT_TYPE_FLOAT, {.dbl=0.75}, 0, 1, FLAGS },
{ "o", "set graticule opacity", OFFSET(opacity), AV_OPT_TYPE_FLOAT, {.dbl=0.75}, 0, 1, FLAGS },
{ "flags", "set graticule flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64=1}, 0, 3, FLAGS, "flags" },
@ -2483,8 +2490,9 @@ static void blend_vline(uint8_t *dst, int height, int linesize, float o1, float
}
}
static void blend_vline16(uint16_t *dst, int height, int linesize, float o1, float o2, int v, int step)
static void blend_vline16(uint8_t *ddst, int height, int linesize, float o1, float o2, int v, int step)
{
uint16_t *dst = (uint16_t *)ddst;
int y;
for (y = 0; y < height; y += step) {
@ -2494,7 +2502,7 @@ static void blend_vline16(uint16_t *dst, int height, int linesize, float o1, flo
}
}
static void blend_hline(uint8_t *dst, int width, float o1, float o2, int v, int step)
static void blend_hline(uint8_t *dst, int width, int unused, float o1, float o2, int v, int step)
{
int x;
@ -2503,8 +2511,9 @@ static void blend_hline(uint8_t *dst, int width, float o1, float o2, int v, int
}
}
static void blend_hline16(uint16_t *dst, int width, float o1, float o2, int v, int step)
static void blend_hline16(uint8_t *ddst, int width, int unused, float o1, float o2, int v, int step)
{
uint16_t *dst = (uint16_t *)ddst;
int x;
for (x = 0; x < width; x += step) {
@ -2512,7 +2521,7 @@ static void blend_hline16(uint16_t *dst, int width, float o1, float o2, int v, i
}
}
static void draw_htext(AVFrame *out, int x, int y, float o1, float o2, const char *txt, const uint8_t color[4])
static void draw_htext(AVFrame *out, int x, int y, int mult, float o1, float o2, const char *txt, const uint8_t color[4])
{
const uint8_t *font;
int font_height;
@ -2564,7 +2573,7 @@ static void draw_htext16(AVFrame *out, int x, int y, int mult, float o1, float o
}
}
static void draw_vtext(AVFrame *out, int x, int y, float o1, float o2, const char *txt, const uint8_t color[4])
static void draw_vtext(AVFrame *out, int x, int y, int mult, float o1, float o2, const char *txt, const uint8_t color[4])
{
const uint8_t *font;
int font_height;
@ -2614,6 +2623,150 @@ static void draw_vtext16(AVFrame *out, int x, int y, int mult, float o1, float o
}
}
static void iblend_vline(uint8_t *dst, int height, int linesize, float o1, float o2, int v, int step)
{
int y;
for (y = 0; y < height; y += step) {
dst[0] = (v - dst[0]) * o1 + dst[0] * o2;
dst += linesize * step;
}
}
static void iblend_vline16(uint8_t *ddst, int height, int linesize, float o1, float o2, int v, int step)
{
uint16_t *dst = (uint16_t *)ddst;
int y;
for (y = 0; y < height; y += step) {
dst[0] = (v - dst[0]) * o1 + dst[0] * o2;
dst += (linesize / 2) * step;
}
}
static void iblend_hline(uint8_t *dst, int width, int unused, float o1, float o2, int v, int step)
{
int x;
for (x = 0; x < width; x += step) {
dst[x] = (v - dst[x]) * o1 + dst[x] * o2;
}
}
static void iblend_hline16(uint8_t *ddst, int width, int unused, float o1, float o2, int v, int step)
{
uint16_t *dst = (uint16_t *)ddst;
int x;
for (x = 0; x < width; x += step) {
dst[x] = (v - dst[x]) * o1 + dst[x] * o2;
}
}
static void idraw_htext(AVFrame *out, int x, int y, int mult, float o1, float o2, const char *txt, const uint8_t color[4])
{
const uint8_t *font;
int font_height;
int i, plane;
font = avpriv_cga_font, font_height = 8;
for (plane = 0; plane < 4 && out->data[plane]; plane++) {
for (i = 0; txt[i]; i++) {
int char_y, mask;
int v = color[plane];
uint8_t *p = out->data[plane] + y * out->linesize[plane] + (x + i * 8);
for (char_y = 0; char_y < font_height; char_y++) {
for (mask = 0x80; mask; mask >>= 1) {
if (font[txt[i] * font_height + char_y] & mask)
p[0] = p[0] * o2 + (v - p[0]) * o1;
p++;
}
p += out->linesize[plane] - 8;
}
}
}
}
static void idraw_htext16(AVFrame *out, int x, int y, int mult, float o1, float o2, const char *txt, const uint8_t color[4])
{
const uint8_t *font;
int font_height;
int i, plane;
font = avpriv_cga_font, font_height = 8;
for (plane = 0; plane < 4 && out->data[plane]; plane++) {
for (i = 0; txt[i]; i++) {
int char_y, mask;
int v = color[plane] * mult;
uint16_t *p = (uint16_t *)(out->data[plane] + y * out->linesize[plane]) + (x + i * 8);
for (char_y = 0; char_y < font_height; char_y++) {
for (mask = 0x80; mask; mask >>= 1) {
if (font[txt[i] * font_height + char_y] & mask)
p[0] = p[0] * o2 + (v - p[0]) * o1;
p++;
}
p += out->linesize[plane] / 2 - 8;
}
}
}
}
static void idraw_vtext(AVFrame *out, int x, int y, int mult, float o1, float o2, const char *txt, const uint8_t color[4])
{
const uint8_t *font;
int font_height;
int i, plane;
font = avpriv_cga_font, font_height = 8;
for (plane = 0; plane < 4 && out->data[plane]; plane++) {
for (i = 0; txt[i]; i++) {
int char_y, mask;
int v = color[plane];
for (char_y = font_height - 1; char_y >= 0; char_y--) {
uint8_t *p = out->data[plane] + (y + i * 10) * out->linesize[plane] + x;
for (mask = 0x80; mask; mask >>= 1) {
if (font[txt[i] * font_height + font_height - 1 - char_y] & mask)
p[char_y] = p[char_y] * o2 + (v - p[char_y]) * o1;
p += out->linesize[plane];
}
}
}
}
}
static void idraw_vtext16(AVFrame *out, int x, int y, int mult, float o1, float o2, const char *txt, const uint8_t color[4])
{
const uint8_t *font;
int font_height;
int i, plane;
font = avpriv_cga_font, font_height = 8;
for (plane = 0; plane < 4 && out->data[plane]; plane++) {
for (i = 0; txt[i]; i++) {
int char_y, mask;
int v = color[plane] * mult;
for (char_y = 0; char_y < font_height; char_y++) {
uint16_t *p = (uint16_t *)(out->data[plane] + (y + i * 10) * out->linesize[plane]) + x;
for (mask = 0x80; mask; mask >>= 1) {
if (font[txt[i] * font_height + font_height - 1 - char_y] & mask)
p[char_y] = p[char_y] * o2 + (v - p[char_y]) * o1;
p += out->linesize[plane] / 2;
}
}
}
}
}
static void graticule_none(WaveformContext *s, AVFrame *out)
{
}
@ -2639,7 +2792,7 @@ static void graticule_row(WaveformContext *s, AVFrame *out)
int x = offset_x + (s->mirror ? s->size - 1 - pos : pos);
uint8_t *dst = out->data[p] + offset_y * out->linesize[p] + x;
blend_vline(dst, height, out->linesize[p], o1, o2, v, step);
s->blend_line(dst, height, out->linesize[p], o1, o2, v, step);
}
}
@ -2651,7 +2804,7 @@ static void graticule_row(WaveformContext *s, AVFrame *out)
if (x < 0)
x = 4;
draw_vtext(out, x, offset_y + 2, o1, o2, name, s->grat_yuva_color);
s->draw_text(out, x, offset_y + 2, 1, o1, o2, name, s->grat_yuva_color);
}
offset_x += s->size * (s->display == STACK);
@ -2679,9 +2832,9 @@ static void graticule16_row(WaveformContext *s, AVFrame *out)
for (l = 0; l < s->nb_glines ; l++) {
const uint16_t pos = s->glines[l].line[C].pos;
int x = offset_x + (s->mirror ? s->size - 1 - pos : pos);
uint16_t *dst = (uint16_t *)(out->data[p] + offset_y * out->linesize[p]) + x;
uint8_t *dst = (uint8_t *)(out->data[p] + offset_y * out->linesize[p]) + x * 2;
blend_vline16(dst, height, out->linesize[p], o1, o2, v, step);
s->blend_line(dst, height, out->linesize[p], o1, o2, v, step);
}
}
@ -2693,7 +2846,7 @@ static void graticule16_row(WaveformContext *s, AVFrame *out)
if (x < 0)
x = 4;
draw_vtext16(out, x, offset_y + 2, mult, o1, o2, name, s->grat_yuva_color);
s->draw_text(out, x, offset_y + 2, mult, o1, o2, name, s->grat_yuva_color);
}
offset_x += s->size * (s->display == STACK);
@ -2722,7 +2875,7 @@ static void graticule_column(WaveformContext *s, AVFrame *out)
int y = offset_y + (s->mirror ? s->size - 1 - pos : pos);
uint8_t *dst = out->data[p] + y * out->linesize[p] + offset_x;
blend_hline(dst, width, o1, o2, v, step);
s->blend_line(dst, width, 1, o1, o2, v, step);
}
}
@ -2734,7 +2887,7 @@ static void graticule_column(WaveformContext *s, AVFrame *out)
if (y < 0)
y = 4;
draw_htext(out, 2 + offset_x, y, o1, o2, name, s->grat_yuva_color);
s->draw_text(out, 2 + offset_x, y, 1, o1, o2, name, s->grat_yuva_color);
}
offset_y += s->size * (s->display == STACK);
@ -2762,9 +2915,9 @@ static void graticule16_column(WaveformContext *s, AVFrame *out)
for (l = 0; l < s->nb_glines ; l++) {
const uint16_t pos = s->glines[l].line[C].pos;
int y = offset_y + (s->mirror ? s->size - 1 - pos : pos);
uint16_t *dst = (uint16_t *)(out->data[p] + y * out->linesize[p]) + offset_x;
uint8_t *dst = (uint8_t *)(out->data[p] + y * out->linesize[p]) + offset_x * 2;
blend_hline16(dst, width, o1, o2, v, step);
s->blend_line(dst, width, 1, o1, o2, v, step);
}
}
@ -2776,7 +2929,7 @@ static void graticule16_column(WaveformContext *s, AVFrame *out)
if (y < 0)
y = 4;
draw_htext16(out, 2 + offset_x, y, mult, o1, o2, name, s->grat_yuva_color);
s->draw_text(out, 2 + offset_x, y, mult, o1, o2, name, s->grat_yuva_color);
}
offset_y += s->size * (s->display == STACK);
@ -2870,9 +3023,24 @@ static int config_input(AVFilterLink *inlink)
}
s->grat_yuva_color[0] = 255;
s->grat_yuva_color[2] = s->graticule == GRAT_ORANGE ? 255 : 0;
s->grat_yuva_color[1] = s->graticule == GRAT_INVERT ? 255 : 0;
s->grat_yuva_color[2] = s->graticule == GRAT_ORANGE || s->graticule == GRAT_INVERT ? 255 : 0;
s->grat_yuva_color[3] = 255;
if (s->mode == 0 && s->graticule != GRAT_INVERT) {
s->blend_line = s->bits <= 8 ? blend_vline : blend_vline16;
s->draw_text = s->bits <= 8 ? draw_vtext : draw_vtext16;
} else if (s->graticule != GRAT_INVERT) {
s->blend_line = s->bits <= 8 ? blend_hline : blend_hline16;
s->draw_text = s->bits <= 8 ? draw_htext : draw_htext16;
} else if (s->mode == 0 && s->graticule == GRAT_INVERT) {
s->blend_line = s->bits <= 8 ? iblend_vline : iblend_vline16;
s->draw_text = s->bits <= 8 ? idraw_vtext : idraw_vtext16;
} else if (s->graticule == GRAT_INVERT) {
s->blend_line = s->bits <= 8 ? iblend_hline : iblend_hline16;
s->draw_text = s->bits <= 8 ? idraw_htext : idraw_htext16;
}
switch (s->filter) {
case LOWPASS:
case COLOR:

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