2013-04-30 15:12:12 +03:00
|
|
|
/*
|
|
|
|
* Copyright (c) 2013 Paul B Mahol
|
|
|
|
*
|
|
|
|
* 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/avstring.h"
|
|
|
|
#include "libavutil/imgutils.h"
|
|
|
|
#include "libavutil/opt.h"
|
|
|
|
#include "libavutil/pixdesc.h"
|
|
|
|
#include "avfilter.h"
|
2013-05-08 21:24:39 +03:00
|
|
|
#include "drawutils.h"
|
2013-04-30 15:12:12 +03:00
|
|
|
#include "internal.h"
|
|
|
|
|
|
|
|
#define PLANE_R 0x01
|
|
|
|
#define PLANE_G 0x02
|
|
|
|
#define PLANE_B 0x04
|
|
|
|
#define PLANE_A 0x08
|
|
|
|
#define PLANE_Y 0x10
|
|
|
|
#define PLANE_U 0x20
|
|
|
|
#define PLANE_V 0x40
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
const AVClass *class;
|
|
|
|
int requested_planes;
|
|
|
|
int map[4];
|
|
|
|
int linesize[4];
|
2013-05-08 21:24:39 +03:00
|
|
|
int is_packed_rgb;
|
|
|
|
int depth;
|
|
|
|
int step;
|
2013-04-30 15:12:12 +03:00
|
|
|
} ExtractPlanesContext;
|
|
|
|
|
|
|
|
#define OFFSET(x) offsetof(ExtractPlanesContext, x)
|
|
|
|
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
|
|
|
|
static const AVOption extractplanes_options[] = {
|
|
|
|
{ "planes", "set planes", OFFSET(requested_planes), AV_OPT_TYPE_FLAGS, {.i64=1}, 1, 0xff, FLAGS, "flags"},
|
|
|
|
{ "y", "set luma plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_Y}, 0, 0, FLAGS, "flags"},
|
|
|
|
{ "u", "set u plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_U}, 0, 0, FLAGS, "flags"},
|
|
|
|
{ "v", "set v plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_V}, 0, 0, FLAGS, "flags"},
|
|
|
|
{ "r", "set red plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_R}, 0, 0, FLAGS, "flags"},
|
2013-05-08 21:24:39 +03:00
|
|
|
{ "g", "set green plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_G}, 0, 0, FLAGS, "flags"},
|
2013-04-30 15:12:12 +03:00
|
|
|
{ "b", "set blue plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_B}, 0, 0, FLAGS, "flags"},
|
|
|
|
{ "a", "set alpha plane", 0, AV_OPT_TYPE_CONST, {.i64=PLANE_A}, 0, 0, FLAGS, "flags"},
|
|
|
|
{ NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
AVFILTER_DEFINE_CLASS(extractplanes);
|
|
|
|
|
|
|
|
static int query_formats(AVFilterContext *ctx)
|
|
|
|
{
|
|
|
|
static const enum AVPixelFormat in_pixfmts[] = {
|
|
|
|
AV_PIX_FMT_YUV410P,
|
|
|
|
AV_PIX_FMT_YUV411P,
|
|
|
|
AV_PIX_FMT_YUV440P,
|
|
|
|
AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P,
|
|
|
|
AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA422P,
|
|
|
|
AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
|
|
|
|
AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
|
|
|
|
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P,
|
|
|
|
AV_PIX_FMT_YUV420P16LE, AV_PIX_FMT_YUVA420P16LE,
|
|
|
|
AV_PIX_FMT_YUV420P16BE, AV_PIX_FMT_YUVA420P16BE,
|
|
|
|
AV_PIX_FMT_YUV422P16LE, AV_PIX_FMT_YUVA422P16LE,
|
|
|
|
AV_PIX_FMT_YUV422P16BE, AV_PIX_FMT_YUVA422P16BE,
|
|
|
|
AV_PIX_FMT_YUV444P16LE, AV_PIX_FMT_YUVA444P16LE,
|
|
|
|
AV_PIX_FMT_YUV444P16BE, AV_PIX_FMT_YUVA444P16BE,
|
|
|
|
AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY8A,
|
|
|
|
AV_PIX_FMT_GRAY16LE, AV_PIX_FMT_GRAY16BE,
|
2013-05-08 21:24:39 +03:00
|
|
|
AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
|
|
|
|
AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA,
|
|
|
|
AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR,
|
|
|
|
AV_PIX_FMT_RGB48LE, AV_PIX_FMT_BGR48LE,
|
|
|
|
AV_PIX_FMT_RGB48BE, AV_PIX_FMT_BGR48BE,
|
|
|
|
AV_PIX_FMT_RGBA64LE, AV_PIX_FMT_BGRA64LE,
|
|
|
|
AV_PIX_FMT_RGBA64BE, AV_PIX_FMT_BGRA64BE,
|
2013-05-06 18:36:20 +03:00
|
|
|
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
|
2013-04-30 15:12:12 +03:00
|
|
|
AV_PIX_FMT_GBRP16LE, AV_PIX_FMT_GBRP16BE,
|
2013-05-06 18:36:20 +03:00
|
|
|
AV_PIX_FMT_GBRAP16LE, AV_PIX_FMT_GBRAP16BE,
|
2013-04-30 15:12:12 +03:00
|
|
|
AV_PIX_FMT_NONE,
|
|
|
|
};
|
|
|
|
static const enum AVPixelFormat out8_pixfmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE };
|
|
|
|
static const enum AVPixelFormat out16le_pixfmts[] = { AV_PIX_FMT_GRAY16LE, AV_PIX_FMT_NONE };
|
|
|
|
static const enum AVPixelFormat out16be_pixfmts[] = { AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_NONE };
|
|
|
|
const enum AVPixelFormat *out_pixfmts;
|
|
|
|
const AVPixFmtDescriptor *desc;
|
|
|
|
AVFilterFormats *avff;
|
|
|
|
int i, depth = 0, be = 0;
|
|
|
|
|
|
|
|
if (!ctx->inputs[0]->in_formats ||
|
2013-05-18 12:40:38 +03:00
|
|
|
!ctx->inputs[0]->in_formats->nb_formats) {
|
2013-04-30 15:12:12 +03:00
|
|
|
return AVERROR(EAGAIN);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!ctx->inputs[0]->out_formats)
|
|
|
|
ff_formats_ref(ff_make_format_list(in_pixfmts), &ctx->inputs[0]->out_formats);
|
|
|
|
|
|
|
|
avff = ctx->inputs[0]->in_formats;
|
|
|
|
desc = av_pix_fmt_desc_get(avff->formats[0]);
|
|
|
|
depth = desc->comp[0].depth_minus1;
|
2013-05-15 12:23:14 +03:00
|
|
|
be = desc->flags & AV_PIX_FMT_FLAG_BE;
|
2013-05-18 12:40:38 +03:00
|
|
|
for (i = 1; i < avff->nb_formats; i++) {
|
2013-04-30 15:12:12 +03:00
|
|
|
desc = av_pix_fmt_desc_get(avff->formats[i]);
|
|
|
|
if (depth != desc->comp[0].depth_minus1 ||
|
2013-05-15 12:23:14 +03:00
|
|
|
be != (desc->flags & AV_PIX_FMT_FLAG_BE)) {
|
2013-04-30 15:12:12 +03:00
|
|
|
return AVERROR(EAGAIN);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (depth == 7)
|
|
|
|
out_pixfmts = out8_pixfmts;
|
|
|
|
else if (be)
|
|
|
|
out_pixfmts = out16be_pixfmts;
|
|
|
|
else
|
|
|
|
out_pixfmts = out16le_pixfmts;
|
|
|
|
|
|
|
|
for (i = 0; i < ctx->nb_outputs; i++)
|
|
|
|
ff_formats_ref(ff_make_format_list(out_pixfmts), &ctx->outputs[i]->in_formats);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int config_input(AVFilterLink *inlink)
|
|
|
|
{
|
|
|
|
AVFilterContext *ctx = inlink->dst;
|
|
|
|
ExtractPlanesContext *e = ctx->priv;
|
|
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
2013-05-08 21:24:39 +03:00
|
|
|
int plane_avail, ret, i;
|
|
|
|
uint8_t rgba_map[4];
|
2013-04-30 15:12:12 +03:00
|
|
|
|
2013-05-15 12:23:14 +03:00
|
|
|
plane_avail = ((desc->flags & AV_PIX_FMT_FLAG_RGB) ? PLANE_R|PLANE_G|PLANE_B :
|
2013-04-30 15:12:12 +03:00
|
|
|
PLANE_Y |
|
|
|
|
((desc->nb_components > 2) ? PLANE_U|PLANE_V : 0)) |
|
2013-05-15 12:23:14 +03:00
|
|
|
((desc->flags & AV_PIX_FMT_FLAG_ALPHA) ? PLANE_A : 0);
|
2013-04-30 15:12:12 +03:00
|
|
|
if (e->requested_planes & ~plane_avail) {
|
|
|
|
av_log(ctx, AV_LOG_ERROR, "Requested planes not available.\n");
|
|
|
|
return AVERROR(EINVAL);
|
|
|
|
}
|
|
|
|
if ((ret = av_image_fill_linesizes(e->linesize, inlink->format, inlink->w)) < 0)
|
|
|
|
return ret;
|
|
|
|
|
2013-05-08 21:24:39 +03:00
|
|
|
e->depth = (desc->comp[0].depth_minus1 + 1) >> 3;
|
|
|
|
e->step = av_get_padded_bits_per_pixel(desc) >> 3;
|
2013-05-15 12:23:14 +03:00
|
|
|
e->is_packed_rgb = !(desc->flags & AV_PIX_FMT_FLAG_PLANAR);
|
|
|
|
if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
|
2013-05-08 21:24:39 +03:00
|
|
|
ff_fill_rgba_map(rgba_map, inlink->format);
|
|
|
|
for (i = 0; i < 4; i++)
|
|
|
|
e->map[i] = rgba_map[e->map[i]];
|
|
|
|
}
|
|
|
|
|
2013-04-30 15:12:12 +03:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int config_output(AVFilterLink *outlink)
|
|
|
|
{
|
|
|
|
AVFilterContext *ctx = outlink->src;
|
|
|
|
AVFilterLink *inlink = ctx->inputs[0];
|
|
|
|
ExtractPlanesContext *e = ctx->priv;
|
|
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
|
|
|
const int output = outlink->srcpad - ctx->output_pads;
|
|
|
|
|
|
|
|
if (e->map[output] == 1 || e->map[output] == 2) {
|
2013-05-09 18:59:38 +03:00
|
|
|
outlink->h = FF_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
|
|
|
|
outlink->w = FF_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
|
2013-04-30 15:12:12 +03:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-05-08 21:24:39 +03:00
|
|
|
static void extract_from_packed(uint8_t *dst, int dst_linesize,
|
|
|
|
const uint8_t *src, int src_linesize,
|
|
|
|
int width, int height,
|
|
|
|
int depth, int step, int comp)
|
|
|
|
{
|
|
|
|
int x, y;
|
|
|
|
|
|
|
|
for (y = 0; y < height; y++) {
|
|
|
|
switch (depth) {
|
|
|
|
case 1:
|
|
|
|
for (x = 0; x < width; x++)
|
|
|
|
dst[x] = src[x * step + comp];
|
|
|
|
break;
|
|
|
|
case 2:
|
|
|
|
for (x = 0; x < width; x++) {
|
|
|
|
dst[x * 2 ] = src[x * step + comp * 2 ];
|
|
|
|
dst[x * 2 + 1] = src[x * step + comp * 2 + 1];
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
dst += dst_linesize;
|
|
|
|
src += src_linesize;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2013-04-30 15:12:12 +03:00
|
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
|
|
|
|
{
|
|
|
|
AVFilterContext *ctx = inlink->dst;
|
|
|
|
ExtractPlanesContext *e = ctx->priv;
|
|
|
|
int i, eof = 0, ret = 0;
|
|
|
|
|
|
|
|
for (i = 0; i < ctx->nb_outputs; i++) {
|
|
|
|
AVFilterLink *outlink = ctx->outputs[i];
|
|
|
|
const int idx = e->map[i];
|
|
|
|
AVFrame *out;
|
|
|
|
|
2013-05-08 21:24:39 +03:00
|
|
|
if (outlink->closed)
|
2013-04-30 15:12:12 +03:00
|
|
|
continue;
|
|
|
|
|
|
|
|
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
|
|
|
if (!out) {
|
|
|
|
ret = AVERROR(ENOMEM);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
av_frame_copy_props(out, frame);
|
|
|
|
|
2013-05-08 21:24:39 +03:00
|
|
|
if (e->is_packed_rgb) {
|
|
|
|
extract_from_packed(out->data[0], out->linesize[0],
|
|
|
|
frame->data[0], frame->linesize[0],
|
|
|
|
outlink->w, outlink->h,
|
|
|
|
e->depth,
|
|
|
|
e->step, idx);
|
|
|
|
} else {
|
|
|
|
av_image_copy_plane(out->data[0], out->linesize[0],
|
|
|
|
frame->data[idx], frame->linesize[idx],
|
|
|
|
e->linesize[idx], outlink->h);
|
|
|
|
}
|
|
|
|
|
2013-04-30 15:12:12 +03:00
|
|
|
ret = ff_filter_frame(outlink, out);
|
|
|
|
if (ret == AVERROR_EOF)
|
|
|
|
eof++;
|
|
|
|
else if (ret < 0)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
av_frame_free(&frame);
|
|
|
|
|
|
|
|
if (eof == ctx->nb_outputs)
|
|
|
|
ret = AVERROR_EOF;
|
|
|
|
else if (ret == AVERROR_EOF)
|
|
|
|
ret = 0;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2013-09-27 21:51:49 +03:00
|
|
|
static av_cold int init(AVFilterContext *ctx)
|
2013-04-30 15:12:12 +03:00
|
|
|
{
|
|
|
|
ExtractPlanesContext *e = ctx->priv;
|
|
|
|
int planes = (e->requested_planes & 0xf) | (e->requested_planes >> 4);
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
|
|
char *name;
|
|
|
|
AVFilterPad pad = { 0 };
|
|
|
|
|
|
|
|
if (!(planes & (1 << i)))
|
|
|
|
continue;
|
|
|
|
|
|
|
|
name = av_asprintf("out%d", ctx->nb_outputs);
|
|
|
|
if (!name)
|
|
|
|
return AVERROR(ENOMEM);
|
|
|
|
e->map[ctx->nb_outputs] = i;
|
|
|
|
pad.name = name;
|
|
|
|
pad.type = AVMEDIA_TYPE_VIDEO;
|
|
|
|
pad.config_props = config_output;
|
|
|
|
|
|
|
|
ff_insert_outpad(ctx, ctx->nb_outputs, &pad);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-05-06 17:55:06 +03:00
|
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
2013-04-30 15:12:12 +03:00
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; i < ctx->nb_outputs; i++)
|
|
|
|
av_freep(&ctx->output_pads[i].name);
|
|
|
|
}
|
|
|
|
|
|
|
|
static const AVFilterPad extractplanes_inputs[] = {
|
|
|
|
{
|
|
|
|
.name = "default",
|
|
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
|
|
.filter_frame = filter_frame,
|
|
|
|
.config_props = config_input,
|
|
|
|
},
|
|
|
|
{ NULL }
|
|
|
|
};
|
|
|
|
|
2013-10-29 13:50:56 +03:00
|
|
|
AVFilter ff_vf_extractplanes = {
|
2013-04-30 15:12:12 +03:00
|
|
|
.name = "extractplanes",
|
|
|
|
.description = NULL_IF_CONFIG_SMALL("Extract planes as grayscale frames."),
|
|
|
|
.priv_size = sizeof(ExtractPlanesContext),
|
|
|
|
.priv_class = &extractplanes_class,
|
|
|
|
.init = init,
|
|
|
|
.uninit = uninit,
|
|
|
|
.query_formats = query_formats,
|
|
|
|
.inputs = extractplanes_inputs,
|
|
|
|
.outputs = NULL,
|
|
|
|
.flags = AVFILTER_FLAG_DYNAMIC_OUTPUTS,
|
|
|
|
};
|
2013-05-08 22:48:09 +03:00
|
|
|
|
|
|
|
#if CONFIG_ALPHAEXTRACT_FILTER
|
|
|
|
|
2013-09-27 21:51:49 +03:00
|
|
|
static av_cold int init_alphaextract(AVFilterContext *ctx)
|
2013-05-08 22:48:09 +03:00
|
|
|
{
|
|
|
|
ExtractPlanesContext *e = ctx->priv;
|
|
|
|
|
|
|
|
e->requested_planes = PLANE_A;
|
|
|
|
|
|
|
|
return init(ctx);
|
|
|
|
}
|
|
|
|
|
2013-10-29 13:50:56 +03:00
|
|
|
AVFilter ff_vf_alphaextract = {
|
2013-05-08 22:48:09 +03:00
|
|
|
.name = "alphaextract",
|
|
|
|
.description = NULL_IF_CONFIG_SMALL("Extract an alpha channel as a "
|
|
|
|
"grayscale image component."),
|
|
|
|
.priv_size = sizeof(ExtractPlanesContext),
|
|
|
|
.init = init_alphaextract,
|
|
|
|
.uninit = uninit,
|
|
|
|
.query_formats = query_formats,
|
|
|
|
.inputs = extractplanes_inputs,
|
|
|
|
.outputs = NULL,
|
|
|
|
.flags = AVFILTER_FLAG_DYNAMIC_OUTPUTS,
|
|
|
|
};
|
|
|
|
#endif /* CONFIG_ALPHAEXTRACT_FILTER */
|