RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
ffmpeg/libavfilter/vf_waveform.c

438 lines
14 KiB
C
Raw Blame History

/*
* Copyright (c) 2012-2015 Paul B Mahol
* Copyright (c) 2013 Marton Balint
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"
typedef struct WaveformContext {
const AVClass *class;
int mode;
int ncomp;
int pcomp;
const uint8_t *bg_color;
int intensity;
int mirror;
int display;
int envelope;
int estart[4];
int eend[4];
int *emax[4];
int *emin[4];
const AVPixFmtDescriptor *desc;
} WaveformContext;
#define OFFSET(x) offsetof(WaveformContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
static const AVOption waveform_options[] = {
{ "mode", "set mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "mode" },
{ "m", "set mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "mode" },
{ "row", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "mode" },
{ "column", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "mode" },
{ "intensity", "set intensity", OFFSET(intensity), AV_OPT_TYPE_INT, {.i64=10}, 1, 255, FLAGS },
{ "i", "set intensity", OFFSET(intensity), AV_OPT_TYPE_INT, {.i64=10}, 1, 255, FLAGS },
{ "mirror", "set mirroring", OFFSET(mirror), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS },
{ "r", "set mirroring", OFFSET(mirror), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS },
{ "display", "set display mode", OFFSET(display), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "display" },
{ "d", "set display mode", OFFSET(display), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "display" },
{ "overlay", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "display" },
{ "parade", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "display" },
{ "components", "set components to display", OFFSET(pcomp), AV_OPT_TYPE_INT, {.i64=1}, 1, 15, FLAGS },
{ "c", "set components to display", OFFSET(pcomp), AV_OPT_TYPE_INT, {.i64=1}, 1, 15, FLAGS },
{ "envelope", "set envelope to display", OFFSET(envelope), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, FLAGS, "envelope" },
{ "e", "set envelope to display", OFFSET(envelope), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, FLAGS, "envelope" },
{ "none", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "envelope" },
{ "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" },
{ 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 int query_formats(AVFilterContext *ctx)
{
AVFilterFormats *fmts_list;
fmts_list = ff_make_format_list(pix_fmts);
if (!fmts_list)
return AVERROR(ENOMEM);
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)
{
AVFilterContext *ctx = inlink->dst;
WaveformContext *s = ctx->priv;
s->desc = av_pix_fmt_desc_get(inlink->format);
s->ncomp = s->desc->nb_components;
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 = 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;
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++ * 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];
}
}
outlink->sample_aspect_ratio = (AVRational){1,1};
return 0;
}
static void gen_waveform(WaveformContext *s, AVFrame *in, AVFrame *out,
int component, int intensity, int offset, int col_mode)
{
const int plane = s->desc->comp[component].plane;
const int mirror = s->mirror;
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 src_linesize = in->linesize[plane];
const int dst_linesize = out->linesize[plane];
const int dst_signed_linesize = dst_linesize * (mirror == 1 ? -1 : 1);
const int max = 255 - intensity;
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 * 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;
for (y = 0; y < src_h; y++) {
const uint8_t *src_data_end = src_data + src_w;
dst = dst_line;
for (p = src_data; p < src_data_end; p++) {
uint8_t *target;
if (col_mode) {
target = dst++ + dst_signed_linesize * (*p >> shift_h);
} else {
if (mirror)
target = dst_data - (*p >> shift_w) - 1;
else
target = dst_data + (*p >> shift_w);
}
if (*target <= max)
*target += intensity;
else
*target = 255;
}
src_data += src_linesize;
dst_data += dst_linesize;
}
}
static void gen_envelope_instant(WaveformContext *s, AVFrame *out, int component)
{
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;
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;
}
}
for (x = end - 1; x >= start; x--) {
if (dst[x] != bg) {
dst[x] = 255;
break;
}
}
}
} 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;
}
}
for (y = end - 1; y >= start; y--) {
dst = out->data[plane] + y * dst_linesize + x;
if (dst[0] != bg) {
dst[0] = 255;
break;
}
}
}
}
}
static void gen_envelope_peak(WaveformContext *s, AVFrame *out, int component)
{
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];
int *emax = s->emax[plane];
int *emin = s->emin[plane];
uint8_t *dst;
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;
}
}
for (x = end - 1; x >= start && x >= emax[y]; x--) {
if (dst[x] != bg) {
emax[y] = x;
break;
}
}
}
if (s->envelope == 3)
gen_envelope_instant(s, out, component);
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;
}
} 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;
}
}
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;
}
}
}
if (s->envelope == 3)
gen_envelope_instant(s, out, component);
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 gen_envelope(WaveformContext *s, AVFrame *out, int component)
{
if (s->envelope == 0) {
return;
} else if (s->envelope == 1) {
gen_envelope_instant(s, out, component);
} else {
gen_envelope_peak(s, out, component);
}
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
WaveformContext *s = ctx->priv;
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *out;
int i, k;
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
av_frame_free(&in);
return AVERROR(ENOMEM);
}
out->pts = in->pts;
for (k = 0; k < s->ncomp; k++) {
const int is_chroma = (k == 1 || k == 2);
const int dst_h = FF_CEIL_RSHIFT(outlink->h, (is_chroma ? s->desc->log2_chroma_h : 0));
const int dst_w = FF_CEIL_RSHIFT(outlink->w, (is_chroma ? s->desc->log2_chroma_w : 0));
for (i = 0; i < dst_h ; i++)
memset(out->data[s->desc->comp[k].plane] +
i * out->linesize[s->desc->comp[k].plane],
s->bg_color[k], dst_w);
}
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);
}
}
av_frame_free(&in);
return ff_filter_frame(outlink, out);
}
static av_cold void uninit(AVFilterContext *ctx)
{
WaveformContext *s = ctx->priv;
int p;
for (p = 0; p < 4; p++) {
av_freep(&s->emax[p]);
av_freep(&s->emin[p]);
}
}
static const AVFilterPad inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = filter_frame,
.config_props = config_input,
},
{ NULL }
};
static const AVFilterPad outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_output,
},
{ NULL }
};
AVFilter ff_vf_waveform = {
.name = "waveform",
.description = NULL_IF_CONFIG_SMALL("Video waveform monitor."),
.priv_size = sizeof(WaveformContext),
.priv_class = &waveform_class,
.query_formats = query_formats,
.uninit = uninit,
.inputs = inputs,
.outputs = outputs,
};
Reference in New Issue View Git Blame Copy Permalink