Commit 031a152a authored by Steve Lhomme's avatar Steve Lhomme Committed by Jean-Baptiste Kempf

chroma: add a filter to convert VLC_CODEC_I420_10L to VLC_CODEC_P010

parent d09e4255
......@@ -178,6 +178,7 @@ $Id$
* hqdn3d: High Quality denoising filter
* http: HTTP Network access module
* https: HTTP/TLS access module for HTTP 2.0 support
* i420_10_p010: I420 to NV12 in 10bits conversion, aka IA0L->P010
* i420_nv12: planar YUV to semi-planar YUV conversion functions
* i420_rgb: planar YUV to packed RGB conversion functions
* i420_rgb_mmx: MMX accelerated version of i420_rgb
......
......@@ -26,6 +26,11 @@ libi420_nv12_plugin_la_SOURCES = video_chroma/i420_nv12.c \
libi420_nv12_plugin_la_CPPFLAGS = $(AM_CPPFLAGS) \
-DMODULE_NAME_IS_i420_nv12
libi420_10_p010_plugin_la_SOURCES = video_chroma/i420_10_p010.c \
video_chroma/copy.c video_chroma/copy.h
libi420_10_p010_plugin_la_CPPFLAGS = $(AM_CPPFLAGS) \
-DMODULE_NAME_IS_i420_10_p010
libi422_i420_plugin_la_SOURCES = video_chroma/i422_i420.c
libi422_yuy2_plugin_la_SOURCES = video_chroma/i422_yuy2.c video_chroma/i422_yuy2.h
......@@ -44,6 +49,7 @@ chroma_LTLIBRARIES = \
libi420_rgb_plugin.la \
libi420_yuy2_plugin.la \
libi420_nv12_plugin.la \
libi420_10_p010_plugin.la \
libi422_i420_plugin.la \
libi422_yuy2_plugin.la \
libgrey_yuv_plugin.la \
......
......@@ -521,6 +521,46 @@ void CopyFromI420ToNv12(picture_t *dst, uint8_t *src[3], size_t src_pitch[3],
}
}
void CopyFromI420_10ToP010(picture_t *dst, uint8_t *src[3], size_t src_pitch[3],
unsigned height, copy_cache_t *cache)
{
(void) cache;
const int i_extra_pitch_dst_y = (dst->p[0].i_pitch - src_pitch[0]) / 2;
const int i_extra_pitch_src_y = (src_pitch[Y_PLANE] - src_pitch[0]) / 2;
uint16_t *dstY = dst->p[0].p_pixels;
uint16_t *srcY = src[Y_PLANE];
for (unsigned y = 0; y < height; y++) {
for (unsigned x = 0; x < (src_pitch[0] / 2); x++) {
*dstY++ = *srcY++ << 6;
}
dstY += i_extra_pitch_dst_y;
srcY += i_extra_pitch_src_y;
}
const unsigned copy_lines = height / 2;
const unsigned copy_pitch = src_pitch[1] / 2;
const int i_extra_pitch_uv = dst->p[1].i_pitch / 2 - 2 * copy_pitch;
const int i_extra_pitch_u = src_pitch[U_PLANE] / 2 - copy_pitch;
const int i_extra_pitch_v = src_pitch[V_PLANE] / 2 - copy_pitch;
uint16_t *dstUV = dst->p[1].p_pixels;
uint16_t *srcU = src[U_PLANE];
uint16_t *srcV = src[V_PLANE];
for ( unsigned int line = 0; line < copy_lines; line++ )
{
for ( unsigned int col = 0; col < copy_pitch; col++ )
{
*dstUV++ = *srcU++ << 6;
*dstUV++ = *srcV++ << 6;
}
dstUV += i_extra_pitch_uv;
srcU += i_extra_pitch_u;
srcV += i_extra_pitch_v;
}
}
void CopyFromYv12(picture_t *dst, uint8_t *src[3], size_t src_pitch[3],
unsigned height, copy_cache_t *cache)
......
......@@ -50,4 +50,7 @@ void CopyFromNv12ToI420(picture_t *dst, uint8_t *src[2], size_t src_pitch[2],
void CopyFromI420ToNv12(picture_t *dst, uint8_t *src[3], size_t src_pitch[3],
unsigned height, copy_cache_t *cache);
void CopyFromI420_10ToP010(picture_t *dst, uint8_t *src[3], size_t src_pitch[3],
unsigned height, copy_cache_t *cache);
#endif
/*****************************************************************************
* i420_10_P010.c : Planar YUV 4:2:0 to SemiPlanar P010 4:2:0
*****************************************************************************
* Copyright (C) 2016 VLC authors and VideoLAN
*
* Authors: Steve Lhomme <robux4@videolabs.io>
*
* 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_plugin.h>
#include <vlc_filter.h>
#include "copy.h"
/*****************************************************************************
* Local and extern prototypes.
*****************************************************************************/
static void I420_10_P010( filter_t *, picture_t *, picture_t * );
static picture_t *I420_10_P010_Filter( filter_t *, picture_t * );
struct filter_sys_t
{
copy_cache_t cache;
};
/*****************************************************************************
* Create: allocate a chroma function
*****************************************************************************
* This function allocates and initializes a chroma function
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
if ( p_filter->fmt_out.video.i_chroma != VLC_CODEC_P010 )
return -1;
/* video must be even, because 4:2:0 is subsampled by 2 in both ways */
if( p_filter->fmt_in.video.i_width & 1
|| p_filter->fmt_in.video.i_height & 1 )
{
return -1;
}
/* resizing not supported */
if( p_filter->fmt_in.video.i_x_offset + p_filter->fmt_in.video.i_visible_width !=
p_filter->fmt_out.video.i_x_offset + p_filter->fmt_out.video.i_visible_width
|| p_filter->fmt_in.video.i_y_offset + p_filter->fmt_in.video.i_visible_height !=
p_filter->fmt_out.video.i_y_offset + p_filter->fmt_out.video.i_visible_height
|| p_filter->fmt_in.video.orientation != p_filter->fmt_out.video.orientation )
return -1;
if ( p_filter->fmt_in.video.i_chroma != VLC_CODEC_I420_10L)
return -1;
filter_sys_t *p_sys = calloc(1, sizeof(filter_sys_t));
if (!p_sys)
return VLC_ENOMEM;
p_filter->pf_video_filter = I420_10_P010_Filter;
CopyInitCache( &p_sys->cache, p_filter->fmt_in.video.i_x_offset +
p_filter->fmt_in.video.i_visible_width );
p_filter->p_sys = p_sys;
return 0;
}
static void Delete(vlc_object_t *p_this)
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys = p_filter->p_sys;
CopyCleanCache( &p_sys->cache );
}
/* Following functions are local */
VIDEO_FILTER_WRAPPER( I420_10_P010 )
/*****************************************************************************
* planar I420 4:2:0 10-bit Y:U:V to semiplanar P010 10/16-bit 4:2:0 Y:UV
*****************************************************************************/
static void I420_10_P010( filter_t *p_filter, picture_t *p_src,
picture_t *p_dst )
{
p_dst->format.i_x_offset = p_src->format.i_x_offset;
p_dst->format.i_y_offset = p_src->format.i_y_offset;
size_t pitch[3] = {
p_src->p[Y_PLANE].i_pitch,
p_src->p[U_PLANE].i_pitch,
p_src->p[V_PLANE].i_pitch,
};
uint8_t *plane[3] = {
(uint8_t*)p_src->p[Y_PLANE].p_pixels,
(uint8_t*)p_src->p[U_PLANE].p_pixels,
(uint8_t*)p_src->p[V_PLANE].p_pixels,
};
CopyFromI420_10ToP010( p_dst, plane, pitch,
p_src->format.i_y_offset + p_src->format.i_visible_height,
&p_filter->p_sys->cache );
}
/*****************************************************************************
* Module descriptor
*****************************************************************************/
vlc_module_begin ()
set_description( N_("YUV 10-bits planar to semiplanar 10-bits conversions") )
set_capability( "video filter2", 160 )
set_callbacks( Create, Delete )
vlc_module_end ()
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