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avfilter/vf_fftfilt: support >8 bit depth formats

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2017-12-23 11:33:18 +01:00
parent f6608f4725
commit b943bc343d
1 changed files with 61 additions and 4 deletions
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65
libavfilter/vf_fftfilt.c
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2015 Arwa Arif <arwaarif1994@gmail.com>
* Copyright (c) 2017 Paul B Mahol
*
* This file is part of FFmpeg.
*
@ -64,6 +65,8 @@ typedef struct FFTFILTContext {
AVExpr *weight_expr[MAX_PLANES];
double *weight[MAX_PLANES];
void (*rdft_horizontal)(struct FFTFILTContext *s, AVFrame *in, int w, int h, int plane);
void (*irdft_horizontal)(struct FFTFILTContext *s, AVFrame *out, int w, int h, int plane);
} FFTFILTContext;
static const char *const var_names[] = { "X", "Y", "W", "H", "N", NULL };
@ -111,7 +114,7 @@ static void copy_rev (FFTSample *dest, int w, int w2)
}
/*Horizontal pass - RDFT*/
static void rdft_horizontal(FFTFILTContext *s, AVFrame *in, int w, int h, int plane)
static void rdft_horizontal8(FFTFILTContext *s, AVFrame *in, int w, int h, int plane)
{
int i, j;
@ -126,6 +129,23 @@ static void rdft_horizontal(FFTFILTContext *s, AVFrame *in, int w, int h, int pl
av_rdft_calc(s->hrdft[plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
}
static void rdft_horizontal16(FFTFILTContext *s, AVFrame *in, int w, int h, int plane)
{
const uint16_t *src = (const uint16_t *)in->data[plane];
int linesize = in->linesize[plane] / 2;
int i, j;
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++)
s->rdft_hdata[plane][i * s->rdft_hlen[plane] + j] = *(src + linesize * i + j);
copy_rev(s->rdft_hdata[plane] + i * s->rdft_hlen[plane], w, s->rdft_hlen[plane]);
}
for (i = 0; i < h; i++)
av_rdft_calc(s->hrdft[plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
}
/*Vertical pass - RDFT*/
static void rdft_vertical(FFTFILTContext *s, int h, int plane)
{
@ -156,7 +176,7 @@ static void irdft_vertical(FFTFILTContext *s, int h, int plane)
}
/*Horizontal pass - IRDFT*/
static void irdft_horizontal(FFTFILTContext *s, AVFrame *out, int w, int h, int plane)
static void irdft_horizontal8(FFTFILTContext *s, AVFrame *out, int w, int h, int plane)
{
int i, j;
@ -171,6 +191,24 @@ static void irdft_horizontal(FFTFILTContext *s, AVFrame *out, int w, int h, int
s->rdft_vlen[plane]), 0, 255);
}
static void irdft_horizontal16(FFTFILTContext *s, AVFrame *out, int w, int h, int plane)
{
uint16_t *dst = (uint16_t *)out->data[plane];
int linesize = out->linesize[plane] / 2;
int max = (1 << s->depth) - 1;
int i, j;
for (i = 0; i < h; i++)
av_rdft_calc(s->ihrdft[plane], s->rdft_hdata[plane] + i * s->rdft_hlen[plane]);
for (i = 0; i < h; i++)
for (j = 0; j < w; j++)
*(dst + linesize * i + j) = av_clip(s->rdft_hdata[plane][i
*s->rdft_hlen[plane] + j] * 4 /
(s->rdft_hlen[plane] *
s->rdft_vlen[plane]), 0, max);
}
static av_cold int initialize(AVFilterContext *ctx)
{
FFTFILTContext *s = ctx->priv;
@ -276,6 +314,16 @@ static int config_props(AVFilterLink *inlink)
if (s->eval_mode == EVAL_MODE_INIT)
do_eval(s, inlink, plane);
}
if (s->depth <= 8) {
s->rdft_horizontal = rdft_horizontal8;
s->irdft_horizontal = irdft_horizontal8;
} else if (s->depth > 8) {
s->rdft_horizontal = rdft_horizontal16;
s->irdft_horizontal = irdft_horizontal16;
} else {
return AVERROR_BUG;
}
return 0;
}
@ -302,7 +350,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
if (s->eval_mode == EVAL_MODE_FRAME)
do_eval(s, inlink, plane);
rdft_horizontal(s, in, w, h, plane);
s->rdft_horizontal(s, in, w, h, plane);
rdft_vertical(s, h, plane);
/*Change user defined parameters*/
@ -314,7 +362,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
s->rdft_vdata[plane][0] += s->rdft_hlen[plane] * s->rdft_vlen[plane] * s->dc[plane];
irdft_vertical(s, h, plane);
irdft_horizontal(s, out, w, h, plane);
s->irdft_horizontal(s, out, w, h, plane);
}
av_frame_free(&in);
@ -344,6 +392,15 @@ static int query_formats(AVFilterContext *ctx)
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P,
AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P,
AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV420P10,
AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV420P14,
AV_PIX_FMT_YUV420P16,
AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV422P10,
AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV422P14,
AV_PIX_FMT_YUV422P16,
AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV444P10,
AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14,
AV_PIX_FMT_YUV444P16,
AV_PIX_FMT_NONE
};