[FFmpeg-cvslog] avfilter/vf_waveform: implement various filters
Paul B Mahol
git at videolan.org
Tue Sep 1 10:44:08 CEST 2015
ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Fri Aug 28 18:45:53 2015 +0000| [32f217edadf0b79151aa2a2d16b38d07354749de] | committer: Paul B Mahol
avfilter/vf_waveform: implement various filters
Signed-off-by: Paul B Mahol <onemda at gmail.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=32f217edadf0b79151aa2a2d16b38d07354749de
---
doc/filters.texi | 21 +
libavfilter/vf_waveform.c | 948 ++++++++++++++++++++++++++++++++++++---------
2 files changed, 792 insertions(+), 177 deletions(-)
diff --git a/doc/filters.texi b/doc/filters.texi
index b78cf90..892347b 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -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
+
+ at item filter, f
+ at table @samp
+ at item lowpass
+No filtering, this is default.
+
+ at item flat
+Luma and chroma combined together.
+
+ at item aflat
+Similar as above, but shows difference between blue and red chroma.
+
+ at item chroma
+Displays only chroma.
+
+ at item achroma
+Similar as above, but shows difference between blue and red chroma.
+
+ at item color
+Displays actual color value on waveform.
+ at end table
@end table
@section xbr
diff --git a/libavfilter/vf_waveform.c b/libavfilter/vf_waveform.c
index 7dfd890..eb49ef3 100644
--- a/libavfilter/vf_waveform.c
+++ b/libavfilter/vf_waveform.c
@@ -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;
@@ -69,26 +83,54 @@ 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[] = {
- AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
- AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
- AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
- AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
- AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ420P,
- AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P,
- AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P,
- AV_PIX_FMT_GRAY8,
- AV_PIX_FMT_NONE
+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,
+ AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
+ AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ420P,
+ AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P,
+ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P,
+ AV_PIX_FMT_GRAY8,
+ 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;
- break;
- default:
- s->bg_color = black_yuva_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;
+ }
+ }
+ }
+ } else {
+ 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;
+ }
+ }
+ }
}
-
- return 0;
}
-static int config_output(AVFilterLink *outlink)
+static void envelope_peak(WaveformContext *s, AVFrame *out, int plane)
{
- 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]);
- }
+ 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];
+ int *emax = s->emax[plane];
+ int *emin = s->emin[plane];
+ uint8_t *dst;
+ int x, y;
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 (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;
+ 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;
}
- } 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;
+ }
+}
+
+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;
}
- for (y = end - 1; y >= start; y--) {
- dst = out->data[plane] + y * dst_linesize + x;
- if (dst[0] != bg) {
- dst[0] = 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;
+ 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 (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);
}
}
+
+ c0_data += c0_linesize;
+ c1_data += c1_linesize;
+ dst_data += dst_linesize;
}
+ }
+}
- if (s->envelope == 3)
- gen_envelope_instant(s, out, component);
+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;
- 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;
+ 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);
}
}
+
+ c1_data += c1_linesize;
+ c2_data += c2_linesize;
+ d1_data += d1_linesize;
+ d2_data += d2_linesize;
}
+ }
+}
- if (s->envelope == 3)
- gen_envelope_instant(s, out, component);
+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;
- 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;
+ 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);
}
}
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