Skip to content

F
ffmpeg.wasm-core
Commit 32f217ed authored by Paul B Mahol's avatar Paul B Mahol
Browse files
Options

avfilter/vf_waveform: implement various filters 

Signed-off-by: 's avatarPaul B Mahol <onemda@gmail.com>
parent b8653281
Show whitespace changes
Inline Side-by-side
Showing with 792 additions and 177 deletions
doc/filters.texi
View file @ 32f217ed
......@@ -11102,6 +11102,27 @@ can still spot out of range values without constantly looking at waveforms.
@item peak+instant
Peak and instant envelope combined together.
@end table
@item filter, f
@table @samp
@item lowpass
No filtering, this is default.
@item flat
Luma and chroma combined together.
@item aflat
Similar as above, but shows difference between blue and red chroma.
@item chroma
Displays only chroma.
@item achroma
Similar as above, but shows difference between blue and red chroma.
@item color
Displays actual color value on waveform.
@end table
@end table
@section xbr
......
libavfilter/vf_waveform.c
View file @ 32f217ed
......@@ -28,6 +28,16 @@
#include "internal.h"
#include "video.h"
enum FilterType {
LOWPASS,
FLAT,
AFLAT,
CHROMA,
ACHROMA,
COLOR,
NB_FILTERS
};
typedef struct WaveformContext {
const AVClass *class;
int mode;
......@@ -42,6 +52,10 @@ typedef struct WaveformContext {
int eend[4];
int *emax[4];
int *emin[4];
int filter;
int size;
void (*waveform)(struct WaveformContext *s, AVFrame *in, AVFrame *out,
int component, int intensity, int offset, int column);
const AVPixFmtDescriptor *desc;
} WaveformContext;
......@@ -69,12 +83,20 @@ static const AVOption waveform_options[] = {
{ "instant", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "envelope" },
{ "peak", NULL, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "envelope" },
{ "peak+instant", NULL, 0, AV_OPT_TYPE_CONST, {.i64=3}, 0, 0, FLAGS, "envelope" },
{ "filter", "set filter", OFFSET(filter), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_FILTERS-1, FLAGS, "filter" },
{ "f", "set filter", OFFSET(filter), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_FILTERS-1, FLAGS, "filter" },
{ "lowpass", NULL, 0, AV_OPT_TYPE_CONST, {.i64=LOWPASS}, 0, 0, FLAGS, "filter" },
{ "flat" , NULL, 0, AV_OPT_TYPE_CONST, {.i64=FLAT}, 0, 0, FLAGS, "filter" },
{ "aflat" , NULL, 0, AV_OPT_TYPE_CONST, {.i64=AFLAT}, 0, 0, FLAGS, "filter" },
{ "chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64=CHROMA}, 0, 0, FLAGS, "filter" },
{ "achroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64=ACHROMA}, 0, 0, FLAGS, "filter" },
{ "color", NULL, 0, AV_OPT_TYPE_CONST, {.i64=COLOR}, 0, 0, FLAGS, "filter" },
{ NULL }
};
AVFILTER_DEFINE_CLASS(waveform);
static const enum AVPixelFormat pix_fmts[] = {
static const enum AVPixelFormat lowpass_pix_fmts[] = {
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
......@@ -86,9 +108,29 @@ static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_NONE
};
static const enum AVPixelFormat flat_pix_fmts[] = {
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_NONE
};
static const enum AVPixelFormat color_pix_fmts[] = {
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_NONE
};
static int query_formats(AVFilterContext *ctx)
{
WaveformContext *s = ctx->priv;
AVFilterFormats *fmts_list;
const enum AVPixelFormat *pix_fmts;
switch (s->filter) {
case LOWPASS: pix_fmts = lowpass_pix_fmts; break;
case FLAT:
case AFLAT:
case CHROMA:
case ACHROMA: pix_fmts = flat_pix_fmts; break;
case COLOR: pix_fmts = color_pix_fmts; break;
}
fmts_list = ff_make_format_list(pix_fmts);
if (!fmts_list)
......@@ -96,88 +138,149 @@ static int query_formats(AVFilterContext *ctx)
return ff_set_common_formats(ctx, fmts_list);
}
static const uint8_t black_yuva_color[4] = { 0, 127, 127, 255 };
static const uint8_t black_gbrp_color[4] = { 0, 0, 0, 255 };
static int config_input(AVFilterLink *inlink)
static void envelope_instant(WaveformContext *s, AVFrame *out, int plane)
{
AVFilterContext *ctx = inlink->dst;
WaveformContext *s = ctx->priv;
s->desc = av_pix_fmt_desc_get(inlink->format);
s->ncomp = s->desc->nb_components;
const int dst_linesize = out->linesize[plane];
const uint8_t bg = s->bg_color[plane];
const int is_chroma = (plane == 1 || plane == 2);
const int shift_w = (is_chroma ? s->desc->log2_chroma_w : 0);
const int shift_h = (is_chroma ? s->desc->log2_chroma_h : 0);
const int dst_h = FF_CEIL_RSHIFT(out->height, shift_h);
const int dst_w = FF_CEIL_RSHIFT(out->width, shift_w);
const int start = s->estart[plane];
const int end = s->eend[plane];
uint8_t *dst;
int x, y;
switch (inlink->format) {
case AV_PIX_FMT_GBRAP:
case AV_PIX_FMT_GBRP:
s->bg_color = black_gbrp_color;
if (s->mode) {
for (x = 0; x < dst_w; x++) {
for (y = start; y < end; y++) {
dst = out->data[plane] + y * dst_linesize + x;
if (dst[0] != bg) {
dst[0] = 255;
break;
}
}
for (y = end - 1; y >= start; y--) {
dst = out->data[plane] + y * dst_linesize + x;
if (dst[0] != bg) {
dst[0] = 255;
break;
default:
s->bg_color = black_yuva_color;
}
return 0;
}
static int config_output(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
AVFilterLink *inlink = ctx->inputs[0];
WaveformContext *s = ctx->priv;
int comp = 0, i, j = 0, p, size, shift;
for (i = 0; i < s->ncomp; i++) {
if ((1 << i) & s->pcomp)
comp++;
}
for (p = 0; p < 4; p++) {
av_freep(&s->emax[p]);
av_freep(&s->emin[p]);
}
if (s->mode) {
outlink->h = 256 * FFMAX(comp * s->display, 1);
size = inlink->w * sizeof(int);
} else {
outlink->w = 256 * FFMAX(comp * s->display, 1);
size = inlink->h * sizeof(int);
for (y = 0; y < dst_h; y++) {
dst = out->data[plane] + y * dst_linesize;
for (x = start; x < end; x++) {
if (dst[x] != bg) {
dst[x] = 255;
break;
}
}
for (x = end - 1; x >= start; x--) {
if (dst[x] != bg) {
dst[x] = 255;
break;
}
}
}
}
}
for (p = 0; p < 4; p++) {
const int is_chroma = (p == 1 || p == 2);
static void envelope_peak(WaveformContext *s, AVFrame *out, int plane)
{
const int dst_linesize = out->linesize[plane];
const uint8_t bg = s->bg_color[plane];
const int is_chroma = (plane == 1 || plane == 2);
const int shift_w = (is_chroma ? s->desc->log2_chroma_w : 0);
const int shift_h = (is_chroma ? s->desc->log2_chroma_h : 0);
const int plane = s->desc->comp[p].plane;
int offset;
const int dst_h = FF_CEIL_RSHIFT(out->height, shift_h);
const int dst_w = FF_CEIL_RSHIFT(out->width, shift_w);
const int start = s->estart[plane];
const int end = s->eend[plane];
int *emax = s->emax[plane];
int *emin = s->emin[plane];
uint8_t *dst;
int x, y;
if (!((1 << p) & s->pcomp))
continue;
if (s->mode) {
for (x = 0; x < dst_w; x++) {
for (y = start; y < end && y < emin[x]; y++) {
dst = out->data[plane] + y * dst_linesize + x;
if (dst[0] != bg) {
emin[x] = y;
break;
}
}
for (y = end - 1; y >= start && y >= emax[x]; y--) {
dst = out->data[plane] + y * dst_linesize + x;
if (dst[0] != bg) {
emax[x] = y;
break;
}
}
}
shift = s->mode ? shift_h : shift_w;
if (s->envelope == 3)
envelope_instant(s, out, plane);
s->emax[plane] = av_malloc(size);
s->emin[plane] = av_malloc(size);
for (x = 0; x < dst_w; x++) {
dst = out->data[plane] + emin[x] * dst_linesize + x;
dst[0] = 255;
dst = out->data[plane] + emax[x] * dst_linesize + x;
dst[0] = 255;
}
} else {
for (y = 0; y < dst_h; y++) {
dst = out->data[plane] + y * dst_linesize;
for (x = start; x < end && x < emin[y]; x++) {
if (dst[x] != bg) {
emin[y] = x;
break;
}
}
for (x = end - 1; x >= start && x >= emax[y]; x--) {
if (dst[x] != bg) {
emax[y] = x;
break;
}
}
}
if (!s->emin[plane] || !s->emax[plane])
return AVERROR(ENOMEM);
if (s->envelope == 3)
envelope_instant(s, out, plane);
offset = j++ * 256 * s->display;
s->estart[plane] = offset >> shift;
s->eend[plane] = (offset + 255) >> shift;
for (i = 0; i < size / sizeof(int); i++) {
s->emax[plane][i] = s->estart[plane];
s->emin[plane][i] = s->eend[plane];
for (y = 0; y < dst_h; y++) {
dst = out->data[plane] + y * dst_linesize + emin[y];
dst[0] = 255;
dst = out->data[plane] + y * dst_linesize + emax[y];
dst[0] = 255;
}
}
}
outlink->sample_aspect_ratio = (AVRational){1,1};
static void envelope(WaveformContext *s, AVFrame *out, int plane)
{
if (s->envelope == 0) {
return;
} else if (s->envelope == 1) {
envelope_instant(s, out, plane);
} else {
envelope_peak(s, out, plane);
}
}
return 0;
static void update(uint8_t *target, int max, int intensity)
{
if (*target <= max)
*target += intensity;
else
*target = 255;
}
static void gen_waveform(WaveformContext *s, AVFrame *in, AVFrame *out,
int component, int intensity, int offset, int col_mode)
static void lowpass(WaveformContext *s, AVFrame *in, AVFrame *out,
int component, int intensity, int offset, int column)
{
const int plane = s->desc->comp[component].plane;
const int mirror = s->mirror;
......@@ -191,21 +294,22 @@ static void gen_waveform(WaveformContext *s, AVFrame *in, AVFrame *out,
const int src_h = FF_CEIL_RSHIFT(in->height, shift_h);
const int src_w = FF_CEIL_RSHIFT(in->width, shift_w);
const uint8_t *src_data = in->data[plane];
uint8_t *dst_data = out->data[plane] + (col_mode ? (offset >> shift_h) * dst_linesize : offset >> shift_w);
uint8_t * const dst_bottom_line = dst_data + dst_linesize * ((256 >> shift_h) - 1);
uint8_t *dst_data = out->data[plane] + (column ? (offset >> shift_h) * dst_linesize : offset >> shift_w);
uint8_t * const dst_bottom_line = dst_data + dst_linesize * ((s->size >> shift_h) - 1);
uint8_t * const dst_line = (mirror ? dst_bottom_line : dst_data);
const uint8_t *p;
uint8_t *dst;
int y;
if (!col_mode && mirror)
dst_data += 256 >> shift_w;
if (!column && mirror)
dst_data += s->size >> shift_w;
for (y = 0; y < src_h; y++) {
const uint8_t *src_data_end = src_data + src_w;
dst = dst_line;
uint8_t *dst = dst_line;
for (p = src_data; p < src_data_end; p++) {
uint8_t *target;
if (col_mode) {
if (column) {
target = dst++ + dst_signed_linesize * (*p >> shift_h);
} else {
if (mirror)
......@@ -213,149 +317,640 @@ static void gen_waveform(WaveformContext *s, AVFrame *in, AVFrame *out,
else
target = dst_data + (*p >> shift_w);
}
if (*target <= max)
*target += intensity;
else
*target = 255;
update(target, max, intensity);
}
src_data += src_linesize;
dst_data += dst_linesize;
}
envelope(s, out, plane);
}
static void gen_envelope_instant(WaveformContext *s, AVFrame *out, int component)
static void flat(WaveformContext *s, AVFrame *in, AVFrame *out,
int component, int intensity, int offset, int column)
{
const int plane = s->desc->comp[component].plane;
const int dst_linesize = out->linesize[plane];
const uint8_t bg = s->bg_color[plane];
const int is_chroma = (component == 1 || component == 2);
const int shift_w = (is_chroma ? s->desc->log2_chroma_w : 0);
const int shift_h = (is_chroma ? s->desc->log2_chroma_h : 0);
const int dst_h = FF_CEIL_RSHIFT(out->height, shift_h);
const int dst_w = FF_CEIL_RSHIFT(out->width, shift_w);
const int start = s->estart[plane];
const int end = s->eend[plane];
uint8_t *dst;
const int mirror = s->mirror;
const int c0_linesize = in->linesize[ plane + 0 ];
const int c1_linesize = in->linesize[(plane + 1) % s->ncomp];
const int c2_linesize = in->linesize[(plane + 2) % s->ncomp];
const int d0_linesize = out->linesize[ plane + 0 ];
const int d1_linesize = out->linesize[(plane + 1) % s->ncomp];
const int max = 255 - intensity;
const int src_h = in->height;
const int src_w = in->width;
int x, y;
if (!s->mode) {
for (y = 0; y < dst_h; y++) {
dst = out->data[plane] + y * dst_linesize;
for (x = start; x < end; x++) {
if (dst[x] != bg) {
dst[x] = 255;
break;
if (column) {
const int d0_signed_linesize = d0_linesize * (mirror == 1 ? -1 : 1);
const int d1_signed_linesize = d1_linesize * (mirror == 1 ? -1 : 1);
for (x = 0; x < src_w; x++) {
const uint8_t *c0_data = in->data[plane + 0];
const uint8_t *c1_data = in->data[(plane + 1) % s->ncomp];
const uint8_t *c2_data = in->data[(plane + 2) % s->ncomp];
uint8_t *d0_data = out->data[plane] + offset * d0_linesize;
uint8_t *d1_data = out->data[(plane + 1) % s->ncomp] + offset * d1_linesize;
uint8_t * const d0_bottom_line = d0_data + d0_linesize * (s->size - 1);
uint8_t * const d0 = (mirror ? d0_bottom_line : d0_data);
uint8_t * const d1_bottom_line = d1_data + d1_linesize * (s->size - 1);
uint8_t * const d1 = (mirror ? d1_bottom_line : d1_data);
for (y = 0; y < src_h; y++) {
const int c0 = c0_data[x] + 256;
const int c1 = FFABS(c1_data[x] - 128) + FFABS(c2_data[x] - 128);
uint8_t *target;
int p;
target = d0 + x + d0_signed_linesize * c0;
update(target, max, intensity);
for (p = c0 - c1; p < c0 + c1; p++) {
target = d1 + x + d1_signed_linesize * p;
update(target, max, 1);
}
c0_data += c0_linesize;
c1_data += c1_linesize;
c2_data += c2_linesize;
d0_data += d0_linesize;
d1_data += d1_linesize;
}
for (x = end - 1; x >= start; x--) {
if (dst[x] != bg) {
dst[x] = 255;
break;
}
} else {
const uint8_t *c0_data = in->data[plane];
const uint8_t *c1_data = in->data[(plane + 1) % s->ncomp];
const uint8_t *c2_data = in->data[(plane + 2) % s->ncomp];
uint8_t *d0_data = out->data[plane] + offset;
uint8_t *d1_data = out->data[(plane + 1) % s->ncomp] + offset;
if (mirror) {
d0_data += s->size - 1;
d1_data += s->size;
}
for (y = 0; y < src_h; y++) {
for (x = 0; x < src_w; x++) {
int c0 = c0_data[x] + 256;
const int c1 = FFABS(c1_data[x] - 128) + FFABS(c2_data[x] - 128);
uint8_t *target;
int p;
if (mirror)
target = d0_data - c0;
else
target = d0_data + c0;
update(target, max, intensity);
for (p = c0 - c1; p < c0 + c1; p++) {
if (mirror)
target = d1_data - p - 1;
else
target = d1_data + p;
update(target, max, 1);
}
}
c0_data += c0_linesize;
c1_data += c1_linesize;
c2_data += c2_linesize;
d0_data += d0_linesize;
d1_data += d1_linesize;
}
}
}
static void aflat(WaveformContext *s, AVFrame *in, AVFrame *out,
int component, int intensity, int offset, int column)
{
const int plane = s->desc->comp[component].plane;
const int mirror = s->mirror;
const int c0_linesize = in->linesize[ plane + 0 ];
const int c1_linesize = in->linesize[(plane + 1) % s->ncomp];
const int c2_linesize = in->linesize[(plane + 2) % s->ncomp];
const int d0_linesize = out->linesize[ plane + 0 ];
const int d1_linesize = out->linesize[(plane + 1) % s->ncomp];
const int d2_linesize = out->linesize[(plane + 2) % s->ncomp];
const int max = 255 - intensity;
const int src_h = in->height;
const int src_w = in->width;
int x, y;
if (column) {
const int d0_signed_linesize = d0_linesize * (mirror == 1 ? -1 : 1);
const int d1_signed_linesize = d1_linesize * (mirror == 1 ? -1 : 1);
const int d2_signed_linesize = d2_linesize * (mirror == 1 ? -1 : 1);
for (x = 0; x < src_w; x++) {
const uint8_t *c0_data = in->data[plane + 0];
const uint8_t *c1_data = in->data[(plane + 1) % s->ncomp];
const uint8_t *c2_data = in->data[(plane + 2) % s->ncomp];
uint8_t *d0_data = out->data[plane] + offset * d0_linesize;
uint8_t *d1_data = out->data[(plane + 1) % s->ncomp] + offset * d1_linesize;
uint8_t *d2_data = out->data[(plane + 2) % s->ncomp] + offset * d2_linesize;
uint8_t * const d0_bottom_line = d0_data + d0_linesize * (s->size - 1);
uint8_t * const d0 = (mirror ? d0_bottom_line : d0_data);
uint8_t * const d1_bottom_line = d1_data + d1_linesize * (s->size - 1);
uint8_t * const d1 = (mirror ? d1_bottom_line : d1_data);
uint8_t * const d2_bottom_line = d2_data + d2_linesize * (s->size - 1);
uint8_t * const d2 = (mirror ? d2_bottom_line : d2_data);
for (y = 0; y < src_h; y++) {
const int c0 = c0_data[x] + 128;
const int c1 = c1_data[x] - 128;
const int c2 = c2_data[x] - 128;
uint8_t *target;
int p;
target = d0 + x + d0_signed_linesize * c0;
update(target, max, intensity);
for (p = c0 + c1; p < c0; p++) {
target = d1 + x + d1_signed_linesize * p;
update(target, max, 1);
}
for (p = c0 + c1 - 1; p > c0; p--) {
target = d1 + x + d1_signed_linesize * p;
update(target, max, 1);
}
for (p = c0 + c2; p < c0; p++) {
target = d2 + x + d2_signed_linesize * p;
update(target, max, 1);
}
for (p = c0 + c2 - 1; p > c0; p--) {
target = d2 + x + d2_signed_linesize * p;
update(target, max, 1);
}
c0_data += c0_linesize;
c1_data += c1_linesize;
c2_data += c2_linesize;
d0_data += d0_linesize;
d1_data += d1_linesize;
d2_data += d2_linesize;
}
}
} else {
for (x = 0; x < dst_w; x++) {
for (y = start; y < end; y++) {
dst = out->data[plane] + y * dst_linesize + x;
if (dst[0] != bg) {
dst[0] = 255;
break;
const uint8_t *c0_data = in->data[plane];
const uint8_t *c1_data = in->data[(plane + 1) % s->ncomp];
const uint8_t *c2_data = in->data[(plane + 2) % s->ncomp];
uint8_t *d0_data = out->data[plane] + offset;
uint8_t *d1_data = out->data[(plane + 1) % s->ncomp] + offset;
uint8_t *d2_data = out->data[(plane + 2) % s->ncomp] + offset;
if (mirror) {
d0_data += s->size - 1;
d1_data += s->size - 1;
d2_data += s->size - 1;
}
for (y = 0; y < src_h; y++) {
for (x = 0; x < src_w; x++) {
const int c0 = c0_data[x] + 128;
const int c1 = c1_data[x] - 128;
const int c2 = c2_data[x] - 128;
uint8_t *target;
int p;
if (mirror)
target = d0_data - c0;
else
target = d0_data + c0;
update(target, max, intensity);
for (p = c0 + c1; p < c0; p++) {
if (mirror)
target = d1_data - p;
else
target = d1_data + p;
update(target, max, 1);
}
for (p = c0 + 1; p < c0 + c1; p++) {
if (mirror)
target = d1_data - p;
else
target = d1_data + p;
update(target, max, 1);
}
for (y = end - 1; y >= start; y--) {
dst = out->data[plane] + y * dst_linesize + x;
if (dst[0] != bg) {
dst[0] = 255;
break;
for (p = c0 + c2; p < c0; p++) {
if (mirror)
target = d2_data - p;
else
target = d2_data + p;
update(target, max, 1);
}
for (p = c0 + 1; p < c0 + c2; p++) {
if (mirror)
target = d2_data - p;
else
target = d2_data + p;
update(target, max, 1);
}
}
c0_data += c0_linesize;
c1_data += c1_linesize;
c2_data += c2_linesize;
d0_data += d0_linesize;
d1_data += d1_linesize;
d2_data += d2_linesize;
}
}
}
static void gen_envelope_peak(WaveformContext *s, AVFrame *out, int component)
static void chroma(WaveformContext *s, AVFrame *in, AVFrame *out,
int component, int intensity, int offset, int column)
{
const int plane = s->desc->comp[component].plane;
const int mirror = s->mirror;
const int c0_linesize = in->linesize[(plane + 1) % s->ncomp];
const int c1_linesize = in->linesize[(plane + 2) % s->ncomp];
const int dst_linesize = out->linesize[plane];
const uint8_t bg = s->bg_color[plane];
const int is_chroma = (component == 1 || component == 2);
const int shift_w = (is_chroma ? s->desc->log2_chroma_w : 0);
const int shift_h = (is_chroma ? s->desc->log2_chroma_h : 0);
const int dst_h = FF_CEIL_RSHIFT(out->height, shift_h);
const int dst_w = FF_CEIL_RSHIFT(out->width, shift_w);
const int start = s->estart[plane];
const int end = s->eend[plane];
int *emax = s->emax[plane];
int *emin = s->emin[plane];
uint8_t *dst;
const int max = 255 - intensity;
const int src_h = in->height;
const int src_w = in->width;
int x, y;
if (!s->mode) {
for (y = 0; y < dst_h; y++) {
dst = out->data[plane] + y * dst_linesize;
for (x = start; x < end && x < emin[y]; x++) {
if (dst[x] != bg) {
emin[y] = x;
break;
if (column) {
const int dst_signed_linesize = dst_linesize * (mirror == 1 ? -1 : 1);
for (x = 0; x < src_w; x++) {
const uint8_t *c0_data = in->data[(plane + 1) % s->ncomp];
const uint8_t *c1_data = in->data[(plane + 2) % s->ncomp];
uint8_t *dst_data = out->data[plane] + offset * dst_linesize;
uint8_t * const dst_bottom_line = dst_data + dst_linesize * (s->size - 1);
uint8_t * const dst_line = (mirror ? dst_bottom_line : dst_data);
uint8_t *dst = dst_line;
for (y = 0; y < src_h; y++) {
const int sum = FFABS(c0_data[x] - 128) + FFABS(c1_data[x] - 128);
uint8_t *target;
int p;
for (p = 256 - sum; p < 256 + sum; p++) {
target = dst + x + dst_signed_linesize * p;
update(target, max, 1);
}
c0_data += c0_linesize;
c1_data += c1_linesize;
dst_data += dst_linesize;
}
for (x = end - 1; x >= start && x >= emax[y]; x--) {
if (dst[x] != bg) {
emax[y] = x;
break;
}
} else {
const uint8_t *c0_data = in->data[(plane + 1) % s->ncomp];
const uint8_t *c1_data = in->data[(plane + 2) % s->ncomp];
uint8_t *dst_data = out->data[plane] + offset;
if (mirror)
dst_data += s->size - 1;
for (y = 0; y < src_h; y++) {
for (x = 0; x < src_w; x++) {
const int sum = FFABS(c0_data[x] - 128) + FFABS(c1_data[x] - 128);
uint8_t *target;
int p;
for (p = 256 - sum; p < 256 + sum; p++) {
if (mirror)
target = dst_data - p;
else
target = dst_data + p;
update(target, max, 1);
}
}
if (s->envelope == 3)
gen_envelope_instant(s, out, component);
c0_data += c0_linesize;
c1_data += c1_linesize;
dst_data += dst_linesize;
}
}
}
for (y = 0; y < dst_h; y++) {
dst = out->data[plane] + y * dst_linesize + emin[y];
dst[0] = 255;
dst = out->data[plane] + y * dst_linesize + emax[y];
dst[0] = 255;
static void achroma(WaveformContext *s, AVFrame *in, AVFrame *out,
int component, int intensity, int offset, int column)
{
const int plane = s->desc->comp[component].plane;
const int mirror = s->mirror;
const int c1_linesize = in->linesize[(plane + 1) % s->ncomp];
const int c2_linesize = in->linesize[(plane + 2) % s->ncomp];
const int d1_linesize = out->linesize[(plane + 1) % s->ncomp];
const int d2_linesize = out->linesize[(plane + 2) % s->ncomp];
const int max = 255 - intensity;
const int src_h = in->height;
const int src_w = in->width;
int x, y;
if (column) {
const int d1_signed_linesize = d1_linesize * (mirror == 1 ? -1 : 1);
const int d2_signed_linesize = d2_linesize * (mirror == 1 ? -1 : 1);
for (x = 0; x < src_w; x++) {
const uint8_t *c1_data = in->data[(plane + 1) % s->ncomp];
const uint8_t *c2_data = in->data[(plane + 2) % s->ncomp];
uint8_t *d1_data = out->data[(plane + 1) % s->ncomp] + offset * d1_linesize;
uint8_t *d2_data = out->data[(plane + 2) % s->ncomp] + offset * d2_linesize;
uint8_t * const d1_bottom_line = d1_data + d1_linesize * (s->size - 1);
uint8_t * const d1 = (mirror ? d1_bottom_line : d1_data);
uint8_t * const d2_bottom_line = d2_data + d2_linesize * (s->size - 1);
uint8_t * const d2 = (mirror ? d2_bottom_line : d2_data);
for (y = 0; y < src_h; y++) {
const int c1 = c1_data[x] - 128;
const int c2 = c2_data[x] - 128;
uint8_t *target;
int p;
for (p = 128 + c1; p < 128; p++) {
target = d1 + x + d1_signed_linesize * p;
update(target, max, 1);
}
for (p = 128 + c1 - 1; p > 128; p--) {
target = d1 + x + d1_signed_linesize * p;
update(target, max, 1);
}
for (p = 128 + c2; p < 128; p++) {
target = d2 + x + d2_signed_linesize * p;
update(target, max, 1);
}
for (p = 128 + c2 - 1; p > 128; p--) {
target = d2 + x + d2_signed_linesize * p;
update(target, max, 1);
}
c1_data += c1_linesize;
c2_data += c2_linesize;
d1_data += d1_linesize;
d2_data += d2_linesize;
}
}
} else {
for (x = 0; x < dst_w; x++) {
for (y = start; y < end && y < emin[x]; y++) {
dst = out->data[plane] + y * dst_linesize + x;
if (dst[0] != bg) {
emin[x] = y;
break;
const uint8_t *c1_data = in->data[(plane + 1) % s->ncomp];
const uint8_t *c2_data = in->data[(plane + 2) % s->ncomp];
uint8_t *d0_data = out->data[plane] + offset;
uint8_t *d1_data = out->data[(plane + 1) % s->ncomp] + offset;
uint8_t *d2_data = out->data[(plane + 2) % s->ncomp] + offset;
if (mirror) {
d0_data += s->size - 1;
d1_data += s->size - 1;
d2_data += s->size - 1;
}
for (y = 0; y < src_h; y++) {
for (x = 0; x < src_w; x++) {
const int c1 = c1_data[x] - 128;
const int c2 = c2_data[x] - 128;
uint8_t *target;
int p;
for (p = 128 + c1; p < 128; p++) {
if (mirror)
target = d1_data - p;
else
target = d1_data + p;
update(target, max, 1);
}
for (y = end - 1; y >= start && y >= emax[x]; y--) {
dst = out->data[plane] + y * dst_linesize + x;
if (dst[0] != bg) {
emax[x] = y;
break;
for (p = 128 + 1; p < 128 + c1; p++) {
if (mirror)
target = d1_data - p;
else
target = d1_data + p;
update(target, max, 1);
}
for (p = 128 + c2; p < 128; p++) {
if (mirror)
target = d2_data - p;
else
target = d2_data + p;
update(target, max, 1);
}
for (p = 128 + 1; p < 128 + c2; p++) {
if (mirror)
target = d2_data - p;
else
target = d2_data + p;
update(target, max, 1);
}
}
if (s->envelope == 3)
gen_envelope_instant(s, out, component);
c1_data += c1_linesize;
c2_data += c2_linesize;
d1_data += d1_linesize;
d2_data += d2_linesize;
}
}
}
for (x = 0; x < dst_w; x++) {
dst = out->data[plane] + emin[x] * dst_linesize + x;
dst[0] = 255;
dst = out->data[plane] + emax[x] * dst_linesize + x;
dst[0] = 255;
static void color(WaveformContext *s, AVFrame *in, AVFrame *out,
int component, int intensity, int offset, int column)
{
const int plane = s->desc->comp[component].plane;
const int mirror = s->mirror;
const uint8_t *c0_data = in->data[plane + 0];
const uint8_t *c1_data = in->data[(plane + 1) % s->ncomp];
const uint8_t *c2_data = in->data[(plane + 2) % s->ncomp];
const int c0_linesize = in->linesize[ plane + 0 ];
const int c1_linesize = in->linesize[(plane + 1) % s->ncomp];
const int c2_linesize = in->linesize[(plane + 2) % s->ncomp];
const int d0_linesize = out->linesize[ plane + 0 ];
const int d1_linesize = out->linesize[(plane + 1) % s->ncomp];
const int d2_linesize = out->linesize[(plane + 2) % s->ncomp];
const int src_h = in->height;
const int src_w = in->width;
int x, y;
if (s->mode) {
const int d0_signed_linesize = d0_linesize * (mirror == 1 ? -1 : 1);
const int d1_signed_linesize = d1_linesize * (mirror == 1 ? -1 : 1);
const int d2_signed_linesize = d2_linesize * (mirror == 1 ? -1 : 1);
uint8_t *d0_data = out->data[plane] + offset * d0_linesize;
uint8_t *d1_data = out->data[(plane + 1) % s->ncomp] + offset * d1_linesize;
uint8_t *d2_data = out->data[(plane + 2) % s->ncomp] + offset * d2_linesize;
uint8_t * const d0_bottom_line = d0_data + d0_linesize * (s->size - 1);
uint8_t * const d0 = (mirror ? d0_bottom_line : d0_data);
uint8_t * const d1_bottom_line = d1_data + d1_linesize * (s->size - 1);
uint8_t * const d1 = (mirror ? d1_bottom_line : d1_data);
uint8_t * const d2_bottom_line = d2_data + d2_linesize * (s->size - 1);
uint8_t * const d2 = (mirror ? d2_bottom_line : d2_data);
for (y = 0; y < src_h; y++) {
for (x = 0; x < src_w; x++) {
const int c0 = c0_data[x];
const int c1 = c1_data[x];
const int c2 = c2_data[x];
*(d0 + d0_signed_linesize * c0 + x) = c0;
*(d1 + d1_signed_linesize * c0 + x) = c1;
*(d2 + d2_signed_linesize * c0 + x) = c2;
}
c0_data += c0_linesize;
c1_data += c1_linesize;
c2_data += c2_linesize;
d0_data += d0_linesize;
d1_data += d1_linesize;
d2_data += d2_linesize;
}
} else {
uint8_t *d0_data = out->data[plane] + offset;
uint8_t *d1_data = out->data[(plane + 1) % s->ncomp] + offset;
uint8_t *d2_data = out->data[(plane + 2) % s->ncomp] + offset;
if (mirror) {
d0_data += s->size - 1;
d1_data += s->size - 1;
d2_data += s->size - 1;
}
for (y = 0; y < src_h; y++) {
for (x = 0; x < src_w; x++) {
const int c0 = c0_data[x];
const int c1 = c1_data[x];
const int c2 = c2_data[x];
if (mirror) {
*(d0_data - c0) = c0;
*(d1_data - c0) = c1;
*(d2_data - c0) = c2;
} else {
*(d0_data + c0) = c0;
*(d1_data + c0) = c1;
*(d2_data + c0) = c2;
}
}
c0_data += c0_linesize;
c1_data += c1_linesize;
c2_data += c2_linesize;
d0_data += d0_linesize;
d1_data += d1_linesize;
d2_data += d2_linesize;
}
}
}
static void gen_envelope(WaveformContext *s, AVFrame *out, int component)
static const uint8_t black_yuva_color[4] = { 0, 127, 127, 255 };
static const uint8_t black_gbrp_color[4] = { 0, 0, 0, 255 };
static int config_input(AVFilterLink *inlink)
{
if (s->envelope == 0) {
return;
} else if (s->envelope == 1) {
gen_envelope_instant(s, out, component);
AVFilterContext *ctx = inlink->dst;
WaveformContext *s = ctx->priv;
s->desc = av_pix_fmt_desc_get(inlink->format);
s->ncomp = s->desc->nb_components;
switch (s->filter) {
case LOWPASS:
s->size = 256;
s->waveform = lowpass; break;
case FLAT:
s->size = 256 * 3;
s->waveform = flat; break;
case AFLAT:
s->size = 256 * 2;
s->waveform = aflat; break;
case CHROMA:
s->size = 256 * 2;
s->waveform = chroma; break;
case ACHROMA:
s->size = 256;
s->waveform = achroma; break;
case COLOR:
s->size = 256;
s->waveform = color; break;
}
switch (inlink->format) {
case AV_PIX_FMT_GBRAP:
case AV_PIX_FMT_GBRP:
s->bg_color = black_gbrp_color;
break;
default:
s->bg_color = black_yuva_color;
}
return 0;
}
static int config_output(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
AVFilterLink *inlink = ctx->inputs[0];
WaveformContext *s = ctx->priv;
int comp = 0, i, j = 0, p, size, shift;
for (i = 0; i < s->ncomp; i++) {
if ((1 << i) & s->pcomp)
comp++;
}
for (p = 0; p < 4; p++) {
av_freep(&s->emax[p]);
av_freep(&s->emin[p]);
}
if (s->mode) {
outlink->h = s->size * FFMAX(comp * s->display, 1);
size = inlink->w * sizeof(int);
} else {
gen_envelope_peak(s, out, component);
outlink->w = s->size * FFMAX(comp * s->display, 1);
size = inlink->h * sizeof(int);
}
for (p = 0; p < 4; p++) {
const int is_chroma = (p == 1 || p == 2);
const int shift_w = (is_chroma ? s->desc->log2_chroma_w : 0);
const int shift_h = (is_chroma ? s->desc->log2_chroma_h : 0);
const int plane = s->desc->comp[p].plane;
int offset;
if (!((1 << p) & s->pcomp))
continue;
shift = s->mode ? shift_h : shift_w;
s->emax[plane] = av_malloc(size);
s->emin[plane] = av_malloc(size);
if (!s->emin[plane] || !s->emax[plane])
return AVERROR(ENOMEM);
offset = j++ * s->size * s->display;
s->estart[plane] = offset >> shift;
s->eend[plane] = (offset + s->size - 1) >> shift;
for (i = 0; i < size / sizeof(int); i++) {
s->emax[plane][i] = s->estart[plane];
s->emin[plane][i] = s->eend[plane];
}
}
outlink->sample_aspect_ratio = (AVRational){1,1};
return 0;
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
......@@ -385,9 +980,8 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
for (k = 0, i = 0; k < s->ncomp; k++) {
if ((1 << k) & s->pcomp) {
const int offset = i++ * 256 * s->display;
gen_waveform(s, in, out, k, s->intensity, offset, s->mode);
gen_envelope(s, out, k);
const int offset = i++ * s->size * s->display;
s->waveform(s, in, out, k, s->intensity, offset, s->mode);
}
}
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment