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vlc/modules/video_filter/hqdn3d.c

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/*****************************************************************************
* hqdn3d.c : high-quality denoise 3D ported from MPlayer
*****************************************************************************
* Copyright (C) 2011 VLC authors and VideoLAN
*
* Authors: Cheng Sun <chengsun9@gmail.com>
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <vlc_common.h>
#include <vlc_configuration.h>
#include <vlc_plugin.h>
#include <vlc_filter.h>
#include <vlc_picture.h>
#include "filter_picture.h"
#include "hqdn3d.h"
/*****************************************************************************
* Local protypes
*****************************************************************************/
static int Open (filter_t *);
static void Close (filter_t *);
static picture_t *Filter (filter_t *, picture_t *);
static int DenoiseCallback( vlc_object_t *p_this, char const *psz_var,
vlc_value_t oldval, vlc_value_t newval,
void *p_data );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
#define FILTER_PREFIX "hqdn3d-"
#define LUMA_SPAT_TEXT N_("Spatial luma strength (0-254)")
#define CHROMA_SPAT_TEXT N_("Spatial chroma strength (0-254)")
#define LUMA_TEMP_TEXT N_("Temporal luma strength (0-254)")
#define CHROMA_TEMP_TEXT N_("Temporal chroma strength (0-254)")
vlc_module_begin()
set_shortname(N_("HQ Denoiser 3D"))
set_description(N_("High Quality 3D Denoiser filter"))
set_subcategory(SUBCAT_VIDEO_VFILTER)
add_float_with_range(FILTER_PREFIX "luma-spat", 4.0, 0.0, 254.0,
LUMA_SPAT_TEXT, NULL)
add_float_with_range(FILTER_PREFIX "chroma-spat", 3.0, 0.0, 254.0,
CHROMA_SPAT_TEXT, NULL)
add_float_with_range(FILTER_PREFIX "luma-temp", 6.0, 0.0, 254.0,
LUMA_TEMP_TEXT, NULL)
add_float_with_range(FILTER_PREFIX "chroma-temp", 4.5, 0.0, 254.0,
CHROMA_TEMP_TEXT, NULL)
add_shortcut("hqdn3d")
set_callback_video_filter(Open)
vlc_module_end()
static const char *const filter_options[] = {
"luma-spat", "chroma-spat", "luma-temp", "chroma-temp", NULL
};
/*****************************************************************************
* filter_sys_t
*****************************************************************************/
typedef struct
{
const vlc_chroma_description_t *chroma;
int w[3], h[3];
struct vf_priv_s cfg;
bool b_recalc_coefs;
vlc_mutex_t coefs_mutex;
float luma_spat, luma_temp, chroma_spat, chroma_temp;
} filter_sys_t;
/*****************************************************************************
* Open
*****************************************************************************/
static int Open(filter_t *filter)
{
filter_sys_t *sys;
struct vf_priv_s *cfg;
const video_format_t *fmt_in = &filter->fmt_in.video;
const video_format_t *fmt_out = &filter->fmt_out.video;
const vlc_fourcc_t fourcc_in = fmt_in->i_chroma;
int wmax = 0;
if ( !video_format_IsSameChroma( fmt_in, fmt_out ) ) {
msg_Err(filter, "Input and output chromas don't match");
return VLC_EGENERIC;
}
const vlc_chroma_description_t *chroma =
vlc_fourcc_GetChromaDescription(fourcc_in);
assert( chroma != NULL );
if (chroma->plane_count != 3 || chroma->pixel_size != 1) {
msg_Err(filter, "Unsupported chroma (%4.4s)", (char*)&fourcc_in);
return VLC_EGENERIC;
}
/* Allocate structure */
sys = calloc(1, sizeof(filter_sys_t));
if (!sys) {
return VLC_ENOMEM;
}
cfg = &sys->cfg;
sys->chroma = chroma;
for (int i = 0; i < 3; ++i) {
sys->w[i] = fmt_in->i_width * chroma->p[i].w.num / chroma->p[i].w.den;
if (sys->w[i] > wmax) wmax = sys->w[i];
sys->h[i] = fmt_out->i_height * chroma->p[i].h.num / chroma->p[i].h.den;
}
cfg->Line = malloc(wmax*sizeof(unsigned int));
if (!cfg->Line) {
free(sys);
return VLC_ENOMEM;
}
config_ChainParse(filter, FILTER_PREFIX, filter_options,
filter->p_cfg);
vlc_mutex_init( &sys->coefs_mutex );
sys->b_recalc_coefs = true;
sys->luma_spat = var_CreateGetFloatCommand(filter, FILTER_PREFIX "luma-spat");
sys->chroma_spat = var_CreateGetFloatCommand(filter, FILTER_PREFIX "chroma-spat");
sys->luma_temp = var_CreateGetFloatCommand(filter, FILTER_PREFIX "luma-temp");
sys->chroma_temp = var_CreateGetFloatCommand(filter, FILTER_PREFIX "chroma-temp");
static const struct vlc_filter_operations filter_ops =
{
.filter_video = Filter, .close = Close,
};
filter->p_sys = sys;
filter->ops = &filter_ops;
var_AddCallback( filter, FILTER_PREFIX "luma-spat", DenoiseCallback, sys );
var_AddCallback( filter, FILTER_PREFIX "chroma-spat", DenoiseCallback, sys );
var_AddCallback( filter, FILTER_PREFIX "luma-temp", DenoiseCallback, sys );
var_AddCallback( filter, FILTER_PREFIX "chroma-temp", DenoiseCallback, sys );
return VLC_SUCCESS;
}
/*****************************************************************************
* Close
*****************************************************************************/
static void Close(filter_t *filter)
{
filter_sys_t *sys = filter->p_sys;
struct vf_priv_s *cfg = &sys->cfg;
var_DelCallback( filter, FILTER_PREFIX "luma-spat", DenoiseCallback, sys );
var_DelCallback( filter, FILTER_PREFIX "chroma-spat", DenoiseCallback, sys );
var_DelCallback( filter, FILTER_PREFIX "luma-temp", DenoiseCallback, sys );
var_DelCallback( filter, FILTER_PREFIX "chroma-temp", DenoiseCallback, sys );
for (int i = 0; i < 3; ++i) {
free(cfg->Frame[i]);
}
free(cfg->Line);
free(sys);
}
/*****************************************************************************
* Filter
*****************************************************************************/
static picture_t *Filter(filter_t *filter, picture_t *src)
{
picture_t *dst;
filter_sys_t *sys = filter->p_sys;
struct vf_priv_s *cfg = &sys->cfg;
bool recalc = false;
if (!src) return NULL;
dst = filter_NewPicture(filter);
if ( unlikely(!dst) ) {
picture_Release(src);
return NULL;
}
vlc_mutex_lock( &sys->coefs_mutex );
recalc = sys->b_recalc_coefs;
sys->b_recalc_coefs = false;
if( unlikely( recalc ) )
{
msg_Dbg( filter, "Changing coefs to %.2f %.2f %.2f %.2f",
sys->luma_spat, sys->luma_temp, sys->chroma_spat, sys->chroma_temp );
PrecalcCoefs(cfg->Coefs[0], sys->luma_spat);
PrecalcCoefs(cfg->Coefs[1], sys->luma_temp);
PrecalcCoefs(cfg->Coefs[2], sys->chroma_spat);
PrecalcCoefs(cfg->Coefs[3], sys->chroma_temp);
}
vlc_mutex_unlock( &sys->coefs_mutex );
deNoise(src->p[0].p_pixels, dst->p[0].p_pixels,
cfg->Line, &cfg->Frame[0], sys->w[0], sys->h[0],
src->p[0].i_pitch, dst->p[0].i_pitch,
cfg->Coefs[0],
cfg->Coefs[0],
cfg->Coefs[1]);
deNoise(src->p[1].p_pixels, dst->p[1].p_pixels,
cfg->Line, &cfg->Frame[1], sys->w[1], sys->h[1],
src->p[1].i_pitch, dst->p[1].i_pitch,
cfg->Coefs[2],
cfg->Coefs[2],
cfg->Coefs[3]);
deNoise(src->p[2].p_pixels, dst->p[2].p_pixels,
cfg->Line, &cfg->Frame[2], sys->w[2], sys->h[2],
src->p[2].i_pitch, dst->p[2].i_pitch,
cfg->Coefs[2],
cfg->Coefs[2],
cfg->Coefs[3]);
if(unlikely(!cfg->Frame[0] || !cfg->Frame[1] || !cfg->Frame[2]))
{
picture_Release( src );
picture_Release( dst );
return NULL;
}
return CopyInfoAndRelease(dst, src);
}
static int DenoiseCallback( vlc_object_t *p_this, char const *psz_var,
vlc_value_t oldval, vlc_value_t newval,
void *p_data )
{
VLC_UNUSED(p_this); VLC_UNUSED(oldval);
filter_sys_t *sys = p_data;
/* Just take values and flag for recalc so we don't block UI thread calling this
* and don't right thread safety calcing coefs in here without mutex*/
vlc_mutex_lock( &sys->coefs_mutex );
if( !strcmp( psz_var, FILTER_PREFIX "luma-spat") )
sys->luma_spat = newval.f_float;
else if( !strcmp( psz_var, FILTER_PREFIX "luma-temp") )
sys->luma_temp = newval.f_float;
else if( !strcmp( psz_var, FILTER_PREFIX "chroma-temp") )
sys->chroma_spat = newval.f_float;
else if( !strcmp( psz_var, FILTER_PREFIX "chroma-spat") )
sys->chroma_temp = newval.f_float;
sys->b_recalc_coefs = true;
vlc_mutex_unlock( &sys->coefs_mutex );
return VLC_SUCCESS;
}
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