mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-02 03:06:28 +02:00
19af142d45
internal.h doesn't rely on it; instead include it directly in every user that needs it (a filter needing it is basically equivalent to it using FILTER_QUERY_FUNC, i.e. a majority of filters doesn't need it). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
332 lines
9.7 KiB
C
332 lines
9.7 KiB
C
/*
|
|
* Copyright (c) 2016 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/avassert.h"
|
|
#include "libavutil/file_open.h"
|
|
#include "libavutil/imgutils.h"
|
|
#include "libavutil/internal.h"
|
|
#include "libavutil/opt.h"
|
|
#include "libavutil/pixdesc.h"
|
|
#include "avfilter.h"
|
|
#include "formats.h"
|
|
#include "internal.h"
|
|
#include "video.h"
|
|
|
|
enum HintModes {
|
|
ABSOLUTE_HINT,
|
|
RELATIVE_HINT,
|
|
PATTERN_HINT,
|
|
NB_HINTS,
|
|
};
|
|
|
|
typedef struct FieldHintContext {
|
|
const AVClass *class;
|
|
|
|
char *hint_file_str;
|
|
FILE *hint;
|
|
int mode;
|
|
|
|
AVFrame *frame[3];
|
|
|
|
int64_t line;
|
|
int nb_planes;
|
|
int eof;
|
|
int planewidth[4];
|
|
int planeheight[4];
|
|
} FieldHintContext;
|
|
|
|
#define OFFSET(x) offsetof(FieldHintContext, x)
|
|
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
|
|
|
|
static const AVOption fieldhint_options[] = {
|
|
{ "hint", "set hint file", OFFSET(hint_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS },
|
|
{ "mode", "set hint mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_HINTS-1, FLAGS, "mode" },
|
|
{ "absolute", 0, 0, AV_OPT_TYPE_CONST, {.i64=ABSOLUTE_HINT}, 0, 0, FLAGS, "mode" },
|
|
{ "relative", 0, 0, AV_OPT_TYPE_CONST, {.i64=RELATIVE_HINT}, 0, 0, FLAGS, "mode" },
|
|
{ "pattern", 0, 0, AV_OPT_TYPE_CONST, {.i64=PATTERN_HINT}, 0, 0, FLAGS, "mode" },
|
|
{ NULL }
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(fieldhint);
|
|
|
|
static av_cold int init(AVFilterContext *ctx)
|
|
{
|
|
FieldHintContext *s = ctx->priv;
|
|
int ret;
|
|
|
|
if (!s->hint_file_str) {
|
|
av_log(ctx, AV_LOG_ERROR, "Hint file must be set.\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
s->hint = avpriv_fopen_utf8(s->hint_file_str, "r");
|
|
if (!s->hint) {
|
|
ret = AVERROR(errno);
|
|
av_log(ctx, AV_LOG_ERROR, "%s: %s\n", s->hint_file_str, av_err2str(ret));
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int query_formats(AVFilterContext *ctx)
|
|
{
|
|
int reject_flags = AV_PIX_FMT_FLAG_BITSTREAM |
|
|
AV_PIX_FMT_FLAG_HWACCEL |
|
|
AV_PIX_FMT_FLAG_PAL;
|
|
|
|
return ff_set_common_formats(ctx, ff_formats_pixdesc_filter(0, reject_flags));
|
|
}
|
|
|
|
static int config_input(AVFilterLink *inlink)
|
|
{
|
|
FieldHintContext *s = inlink->dst->priv;
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
|
int ret;
|
|
|
|
if ((ret = av_image_fill_linesizes(s->planewidth, inlink->format, inlink->w)) < 0)
|
|
return ret;
|
|
|
|
s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
|
|
s->planeheight[0] = s->planeheight[3] = inlink->h;
|
|
|
|
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
|
FieldHintContext *s = ctx->priv;
|
|
AVFrame *out, *top, *bottom;
|
|
char buf[1024] = { 0 };
|
|
int64_t tf, bf;
|
|
int tfactor = 0, bfactor = 1;
|
|
char hint = '=', field = '=';
|
|
int p;
|
|
|
|
av_frame_free(&s->frame[0]);
|
|
s->frame[0] = s->frame[1];
|
|
s->frame[1] = s->frame[2];
|
|
s->frame[2] = in;
|
|
if (!s->frame[1])
|
|
return 0;
|
|
else if (!s->frame[0]) {
|
|
s->frame[0] = av_frame_clone(s->frame[1]);
|
|
if (!s->frame[0])
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
while (1) {
|
|
if (fgets(buf, sizeof(buf)-1, s->hint)) {
|
|
s->line++;
|
|
if (buf[0] == '#' || buf[0] == ';') {
|
|
continue;
|
|
} else if (sscanf(buf, "%"PRId64",%"PRId64" %c %c", &tf, &bf, &hint, &field) == 4) {
|
|
;
|
|
} else if (sscanf(buf, "%"PRId64",%"PRId64" %c", &tf, &bf, &hint) == 3) {
|
|
;
|
|
} else if (sscanf(buf, "%"PRId64",%"PRId64"", &tf, &bf) == 2) {
|
|
;
|
|
} else {
|
|
av_log(ctx, AV_LOG_ERROR, "Invalid entry at line %"PRId64".\n", s->line);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
switch (s->mode) {
|
|
case ABSOLUTE_HINT:
|
|
if (tf > outlink->frame_count_in + 1 || tf < FFMAX(0, outlink->frame_count_in - 1) ||
|
|
bf > outlink->frame_count_in + 1 || bf < FFMAX(0, outlink->frame_count_in - 1)) {
|
|
av_log(ctx, AV_LOG_ERROR, "Out of range frames %"PRId64" and/or %"PRId64" on line %"PRId64" for %"PRId64". input frame.\n", tf, bf, s->line, inlink->frame_count_out);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
break;
|
|
case PATTERN_HINT:
|
|
case RELATIVE_HINT:
|
|
if (tf > 1 || tf < -1 ||
|
|
bf > 1 || bf < -1) {
|
|
av_log(ctx, AV_LOG_ERROR, "Out of range %"PRId64" and/or %"PRId64" on line %"PRId64" for %"PRId64". input frame.\n", tf, bf, s->line, inlink->frame_count_out);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
break;
|
|
default:
|
|
return AVERROR_BUG;
|
|
};
|
|
break;
|
|
} else {
|
|
if (s->mode == PATTERN_HINT) {
|
|
fseek(s->hint, 0, SEEK_SET);
|
|
continue;
|
|
}
|
|
av_log(ctx, AV_LOG_ERROR, "Missing entry for %"PRId64". input frame.\n", inlink->frame_count_out);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
|
|
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
|
if (!out)
|
|
return AVERROR(ENOMEM);
|
|
av_frame_copy_props(out, s->frame[1]);
|
|
|
|
switch (s->mode) {
|
|
case ABSOLUTE_HINT:
|
|
top = s->frame[tf - outlink->frame_count_in + 1];
|
|
bottom = s->frame[bf - outlink->frame_count_in + 1];
|
|
break;
|
|
case PATTERN_HINT:
|
|
case RELATIVE_HINT:
|
|
top = s->frame[1 + tf];
|
|
bottom = s->frame[1 + bf];
|
|
break;
|
|
default:
|
|
av_assert0(0);
|
|
}
|
|
|
|
switch (field) {
|
|
case 'b':
|
|
tfactor = 1;
|
|
top = bottom;
|
|
break;
|
|
case 't':
|
|
bfactor = 0;
|
|
bottom = top;
|
|
break;
|
|
case '=':
|
|
break;
|
|
default:
|
|
av_log(ctx, AV_LOG_ERROR, "Invalid field: %c.\n", field);
|
|
av_frame_free(&out);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
switch (hint) {
|
|
case '+':
|
|
#if FF_API_INTERLACED_FRAME
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
|
out->interlaced_frame = 1;
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
#endif
|
|
out->flags |= AV_FRAME_FLAG_INTERLACED;
|
|
break;
|
|
case '-':
|
|
#if FF_API_INTERLACED_FRAME
|
|
FF_DISABLE_DEPRECATION_WARNINGS
|
|
out->interlaced_frame = 0;
|
|
FF_ENABLE_DEPRECATION_WARNINGS
|
|
#endif
|
|
out->flags &= ~AV_FRAME_FLAG_INTERLACED;
|
|
break;
|
|
case '=':
|
|
break;
|
|
case 'b':
|
|
tfactor = 1;
|
|
top = bottom;
|
|
break;
|
|
case 't':
|
|
bfactor = 0;
|
|
bottom = top;
|
|
break;
|
|
default:
|
|
av_log(ctx, AV_LOG_ERROR, "Invalid hint: %c.\n", hint);
|
|
av_frame_free(&out);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
for (p = 0; p < s->nb_planes; p++) {
|
|
av_image_copy_plane(out->data[p],
|
|
out->linesize[p] * 2,
|
|
top->data[p] + tfactor * top->linesize[p],
|
|
top->linesize[p] * 2,
|
|
s->planewidth[p],
|
|
(s->planeheight[p] + 1) / 2);
|
|
av_image_copy_plane(out->data[p] + out->linesize[p],
|
|
out->linesize[p] * 2,
|
|
bottom->data[p] + bfactor * bottom->linesize[p],
|
|
bottom->linesize[p] * 2,
|
|
s->planewidth[p],
|
|
(s->planeheight[p] + 1) / 2);
|
|
}
|
|
|
|
return ff_filter_frame(outlink, out);
|
|
}
|
|
|
|
static int request_frame(AVFilterLink *outlink)
|
|
{
|
|
AVFilterContext *ctx = outlink->src;
|
|
FieldHintContext *s = ctx->priv;
|
|
int ret;
|
|
|
|
if (s->eof)
|
|
return AVERROR_EOF;
|
|
|
|
ret = ff_request_frame(ctx->inputs[0]);
|
|
if (ret == AVERROR_EOF && s->frame[2]) {
|
|
AVFrame *next = av_frame_clone(s->frame[2]);
|
|
if (!next)
|
|
return AVERROR(ENOMEM);
|
|
ret = filter_frame(ctx->inputs[0], next);
|
|
s->eof = 1;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
|
{
|
|
FieldHintContext *s = ctx->priv;
|
|
|
|
if (s->hint)
|
|
fclose(s->hint);
|
|
s->hint = NULL;
|
|
|
|
av_frame_free(&s->frame[0]);
|
|
av_frame_free(&s->frame[1]);
|
|
av_frame_free(&s->frame[2]);
|
|
}
|
|
|
|
static const AVFilterPad inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_input,
|
|
.filter_frame = filter_frame,
|
|
},
|
|
};
|
|
|
|
static const AVFilterPad outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.request_frame = request_frame,
|
|
},
|
|
};
|
|
|
|
const AVFilter ff_vf_fieldhint = {
|
|
.name = "fieldhint",
|
|
.description = NULL_IF_CONFIG_SMALL("Field matching using hints."),
|
|
.priv_size = sizeof(FieldHintContext),
|
|
.priv_class = &fieldhint_class,
|
|
.init = init,
|
|
.uninit = uninit,
|
|
FILTER_INPUTS(inputs),
|
|
FILTER_OUTPUTS(outputs),
|
|
FILTER_QUERY_FUNC(query_formats),
|
|
};
|