Staging
v0.5.1
v0.5.1
Revision f1b94134a4b879bc55c3dacdb496690c8ebdc03f authored by Vikram Fugro on 11 March 2016, 12:16:11 UTC, committed by Jean-Baptiste Kempf on 11 March 2016, 14:57:34 UTC
Allocate the output vlc pictures with dimensions padded, as requested by the decoder (for alignments). This further increases the chances of direct rendering. Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
1 parent 6c813cb
filter_picture.h
/*****************************************************************************
* filter_picture.h: Common picture functions for filters
*****************************************************************************
* Copyright (C) 2007 VLC authors and VideoLAN
* $Id$
*
* Authors: Antoine Cellerier <dionoea at videolan dot org>
*
* 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.
*****************************************************************************/
/* FIXME: do all of these really have square pixels? */
#define CASE_PLANAR_YUV_SQUARE \
case VLC_CODEC_I420: \
case VLC_CODEC_J420: \
case VLC_CODEC_YV12: \
case VLC_CODEC_I411: \
case VLC_CODEC_I410: \
case VLC_CODEC_I444: \
case VLC_CODEC_J444: \
case VLC_CODEC_YUVA:
#define CASE_PLANAR_YUV_NONSQUARE \
case VLC_CODEC_I422: \
case VLC_CODEC_J422:
#define CASE_PLANAR_YUV10 \
case VLC_CODEC_I420_10L: \
case VLC_CODEC_I420_10B: \
case VLC_CODEC_I444_10L: \
case VLC_CODEC_I444_10B:
#define CASE_PLANAR_YUV9 \
case VLC_CODEC_I420_9L: \
case VLC_CODEC_I420_9B: \
case VLC_CODEC_I444_9L: \
case VLC_CODEC_I444_9B:
#define CASE_PLANAR_YUV \
CASE_PLANAR_YUV_SQUARE \
CASE_PLANAR_YUV_NONSQUARE \
#define CASE_PACKED_YUV_422 \
case VLC_CODEC_UYVY: \
case VLC_CODEC_YUYV: \
case VLC_CODEC_YVYU:
static inline int GetPackedYuvOffsets( vlc_fourcc_t i_chroma,
int *i_y_offset, int *i_u_offset, int *i_v_offset )
{
switch( i_chroma )
{
case VLC_CODEC_UYVY:
/* UYVY */
*i_y_offset = 1;
*i_u_offset = 0;
*i_v_offset = 2;
return VLC_SUCCESS;
case VLC_CODEC_VYUY:
/* VYUY */
*i_y_offset = 1;
*i_u_offset = 2;
*i_v_offset = 0;
return VLC_SUCCESS;
case VLC_CODEC_YUYV:
/* YUYV */
*i_y_offset = 0;
*i_u_offset = 1;
*i_v_offset = 3;
return VLC_SUCCESS;
case VLC_CODEC_YVYU:
/* YVYU */
*i_y_offset = 0;
*i_u_offset = 3;
*i_v_offset = 1;
return VLC_SUCCESS;
default:
return VLC_EGENERIC;
}
}
static inline int GetPackedRgbIndexes( const video_format_t *p_fmt, int *i_r_index,
int *i_g_index, int *i_b_index )
{
if( p_fmt->i_chroma != VLC_CODEC_RGB24 && p_fmt->i_chroma != VLC_CODEC_RGB32 )
return VLC_EGENERIC;
#ifdef WORDS_BIGENDIAN
const int i_mask_bits = p_fmt->i_chroma == VLC_CODEC_RGB24 ? 24 : 32;
*i_r_index = ( i_mask_bits - p_fmt->i_lrshift ) / 8;
*i_g_index = ( i_mask_bits - p_fmt->i_lgshift ) / 8;
*i_b_index = ( i_mask_bits - p_fmt->i_lbshift ) / 8;
#else
*i_r_index = p_fmt->i_lrshift / 8;
*i_g_index = p_fmt->i_lgshift / 8;
*i_b_index = p_fmt->i_lbshift / 8;
#endif
return VLC_SUCCESS;
}
static inline uint8_t vlc_uint8( int v )
{
if( v > 255 )
return 255;
else if( v < 0 )
return 0;
return v;
}
static inline void yuv_to_rgb( int *r, int *g, int *b,
uint8_t y1, uint8_t u1, uint8_t v1 )
{
/* macros used for YUV pixel conversions */
# define SCALEBITS 10
# define ONE_HALF (1 << (SCALEBITS - 1))
# define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
int y, cb, cr, r_add, g_add, b_add;
cb = u1 - 128;
cr = v1 - 128;
r_add = FIX(1.40200*255.0/224.0) * cr + ONE_HALF;
g_add = - FIX(0.34414*255.0/224.0) * cb
- FIX(0.71414*255.0/224.0) * cr + ONE_HALF;
b_add = FIX(1.77200*255.0/224.0) * cb + ONE_HALF;
y = (y1 - 16) * FIX(255.0/219.0);
*r = vlc_uint8( (y + r_add) >> SCALEBITS );
*g = vlc_uint8( (y + g_add) >> SCALEBITS );
*b = vlc_uint8( (y + b_add) >> SCALEBITS );
#undef FIX
#undef ONE_HALF
#undef SCALEBITS
}
static inline void rgb_to_yuv( uint8_t *y, uint8_t *u, uint8_t *v,
int r, int g, int b )
{
*y = ( ( ( 66 * r + 129 * g + 25 * b + 128 ) >> 8 ) + 16 );
*u = ( ( -38 * r - 74 * g + 112 * b + 128 ) >> 8 ) + 128 ;
*v = ( ( 112 * r - 94 * g - 18 * b + 128 ) >> 8 ) + 128 ;
}
/*****************************************************************************
*
*****************************************************************************/
static inline picture_t *CopyInfoAndRelease( picture_t *p_outpic, picture_t *p_inpic )
{
picture_CopyProperties( p_outpic, p_inpic );
picture_Release( p_inpic );
return p_outpic;
}
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