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ffmpeg.wasm-core
Commit f5361ee5 authored by Paul B Mahol's avatar Paul B Mahol
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avfilter/vf_pseudocolor: add support for some subsampled formats

parent b8b84f9a
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Showing with 190 additions and 15 deletions
libavfilter/vf_pseudocolor.c
View file @ f5361ee5
......@@ -71,6 +71,14 @@ typedef struct PseudoColorContext {
char *comp_expr_str[4];
AVExpr *comp_expr[4];
float lut[4][256];
void (*filter[4])(int max, int width, int height,
const uint8_t *index, const uint8_t *src,
uint8_t *dst,
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
float *lut);
} PseudoColorContext;
#define OFFSET(x) offsetof(PseudoColorContext, x)
......@@ -87,6 +95,8 @@ static const AVOption pseudocolor_options[] = {
static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_GRAY8,
AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P,
AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA422P,
AV_PIX_FMT_YUV444P, AV_PIX_FMT_GBRP,
AV_PIX_FMT_YUVA444P, AV_PIX_FMT_GBRAP,
AV_PIX_FMT_NONE
......@@ -100,6 +110,139 @@ static int query_formats(AVFilterContext *ctx)
return ff_set_common_formats(ctx, fmts_list);
}
static void pseudocolor_filter(int max, int width, int height,
const uint8_t *index,
const uint8_t *src,
uint8_t *dst,
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
float *lut)
{
int x, y;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
int v = lut[index[x]];
if (v >= 0 && v <= max) {
dst[x] = v;
} else {
dst[x] = src[x];
}
}
index += ilinesize;
src += slinesize;
dst += dlinesize;
}
}
static void pseudocolor_filter_11(int max, int width, int height,
const uint8_t *index,
const uint8_t *src,
uint8_t *dst,
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
float *lut)
{
int x, y;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
int v = lut[index[(y << 1) * ilinesize + (x << 1)]];
if (v >= 0 && v <= max) {
dst[x] = v;
} else {
dst[x] = src[x];
}
}
src += slinesize;
dst += dlinesize;
}
}
static void pseudocolor_filter_11d(int max, int width, int height,
const uint8_t *index,
const uint8_t *src,
uint8_t *dst,
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
float *lut)
{
int x, y;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
int v = lut[index[(y >> 1) * ilinesize + (x >> 1)]];
if (v >= 0 && v <= max) {
dst[x] = v;
} else {
dst[x] = src[x];
}
}
src += slinesize;
dst += dlinesize;
}
}
static void pseudocolor_filter_10(int max, int width, int height,
const uint8_t *index,
const uint8_t *src,
uint8_t *dst,
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
float *lut)
{
int x, y;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
int v = lut[index[x << 1]];
if (v >= 0 && v <= max) {
dst[x] = v;
} else {
dst[x] = src[x];
}
}
index += ilinesize;
src += slinesize;
dst += dlinesize;
}
}
static void pseudocolor_filter_10d(int max, int width, int height,
const uint8_t *index,
const uint8_t *src,
uint8_t *dst,
ptrdiff_t ilinesize,
ptrdiff_t slinesize,
ptrdiff_t dlinesize,
float *lut)
{
int x, y;
for (y = 0; y < height; y++) {
for (x = 0; x < width; x++) {
int v = lut[index[x >> 1]];
if (v >= 0 && v <= max) {
dst[x] = v;
} else {
dst[x] = src[x];
}
}
index += ilinesize;
src += slinesize;
dst += dlinesize;
}
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
......@@ -169,6 +312,46 @@ static int config_input(AVFilterLink *inlink)
}
}
switch (inlink->format) {
case AV_PIX_FMT_YUV444P:
case AV_PIX_FMT_YUVA444P:
case AV_PIX_FMT_GBRP:
case AV_PIX_FMT_GBRAP:
case AV_PIX_FMT_GRAY8:
s->filter[0] = s->filter[1] = s->filter[2] = s->filter[3] = pseudocolor_filter;
break;
case AV_PIX_FMT_YUV420P:
case AV_PIX_FMT_YUVA420P:
switch (s->index) {
case 0:
case 3:
s->filter[0] = s->filter[3] = pseudocolor_filter;
s->filter[1] = s->filter[2] = pseudocolor_filter_11;
break;
case 1:
case 2:
s->filter[0] = s->filter[3] = pseudocolor_filter_11d;
s->filter[1] = s->filter[2] = pseudocolor_filter;
break;
}
break;
case AV_PIX_FMT_YUV422P:
case AV_PIX_FMT_YUVA422P:
switch (s->index) {
case 0:
case 3:
s->filter[0] = s->filter[3] = pseudocolor_filter;
s->filter[1] = s->filter[2] = pseudocolor_filter_10;
break;
case 1:
case 2:
s->filter[0] = s->filter[3] = pseudocolor_filter_10d;
s->filter[1] = s->filter[2] = pseudocolor_filter;
break;
}
break;
}
return 0;
}
......@@ -178,7 +361,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
PseudoColorContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *out;
int x, y, plane;
int plane;
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
......@@ -191,21 +374,13 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
const uint8_t *index = in->data[s->index];
const uint8_t *src = in->data[plane];
uint8_t *dst = out->data[plane];
ptrdiff_t ilinesize = in->linesize[s->index];
ptrdiff_t slinesize = in->linesize[plane];
ptrdiff_t dlinesize = out->linesize[plane];
for (y = 0; y < s->height[plane]; y++) {
for (x = 0; x < s->width[plane]; x++) {
int v = s->lut[plane][index[x]];
if (v >= 0 && v <= s->max) {
dst[x] = v;
} else {
dst[x] = src[x];
}
}
index += in->linesize[s->index];
src += in->linesize[plane];
dst += out->linesize[plane];
}
s->filter[plane](s->max, s->width[plane], s->height[plane],
index, src, dst, ilinesize, slinesize,
dlinesize, s->lut[plane]);
}
av_frame_free(&in);
......
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