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Commit c0653a16 authored by Antoine Cellerier's avatar Antoine Cellerier
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* Untested YV12/I420 -> * blending. Works exactly like YUVA blending except... 

* Untested YV12/I420 -> * blending. Works exactly like YUVA blending except when i_trans == 255. This should improve Mosaic performance. (still needs 1 or 2 changes to the mosaic_bridge and mosaic modules).
* Don't try blending if i_trans == 0.
parent 01828c04
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Showing with 165 additions and 27 deletions
modules/video_filter/blend.c
View file @ c0653a16
...@@ -47,9 +47,11 @@ static void Blend( filter_t *, picture_t *, picture_t *, picture_t *, ...@@ -47,9 +47,11 @@ static void Blend( filter_t *, picture_t *, picture_t *, picture_t *,
int, int, int ); int, int, int );
/* TODO i_alpha support for BlendR16 */ /* TODO i_alpha support for BlendR16 */
/* YUVA */ /* YUVA, I420, YV12 */
static void BlendI420( filter_t *, picture_t *, picture_t *, picture_t *, static void BlendI420( filter_t *, picture_t *, picture_t *, picture_t *,
int, int, int, int, int ); int, int, int, int, int );
static void BlendI420I420( filter_t *, picture_t *, picture_t *, picture_t *,
int, int, int, int );
static void BlendR16( filter_t *, picture_t *, picture_t *, picture_t *, static void BlendR16( filter_t *, picture_t *, picture_t *, picture_t *,
int, int, int, int, int ); int, int, int, int, int );
static void BlendR24( filter_t *, picture_t *, picture_t *, picture_t *, static void BlendR24( filter_t *, picture_t *, picture_t *, picture_t *,
...@@ -97,6 +99,8 @@ static int OpenFilter( vlc_object_t *p_this ) ...@@ -97,6 +99,8 @@ static int OpenFilter( vlc_object_t *p_this )
int in_chroma = p_filter->fmt_in.video.i_chroma; int in_chroma = p_filter->fmt_in.video.i_chroma;
int out_chroma = p_filter->fmt_out.video.i_chroma; int out_chroma = p_filter->fmt_out.video.i_chroma;
if( ( in_chroma != VLC_FOURCC('Y','U','V','A') && if( ( in_chroma != VLC_FOURCC('Y','U','V','A') &&
in_chroma != VLC_FOURCC('I','4','2','0') &&
in_chroma != VLC_FOURCC('Y','V','1','2') &&
in_chroma != VLC_FOURCC('Y','U','V','P') && in_chroma != VLC_FOURCC('Y','U','V','P') &&
in_chroma != VLC_FOURCC('R','G','B','A') ) || in_chroma != VLC_FOURCC('R','G','B','A') ) ||
( out_chroma != VLC_FOURCC('I','4','2','0') && ( out_chroma != VLC_FOURCC('I','4','2','0') &&
...@@ -152,6 +156,8 @@ static void Blend( filter_t *p_filter, picture_t *p_dst, ...@@ -152,6 +156,8 @@ static void Blend( filter_t *p_filter, picture_t *p_dst,
{ {
int i_width, i_height; int i_width, i_height;
if( i_alpha == 0 ) return;
i_width = __MIN((int)p_filter->fmt_out.video.i_visible_width - i_x_offset, i_width = __MIN((int)p_filter->fmt_out.video.i_visible_width - i_x_offset,
(int)p_filter->fmt_in.video.i_visible_width); (int)p_filter->fmt_in.video.i_visible_width);
...@@ -160,7 +166,7 @@ static void Blend( filter_t *p_filter, picture_t *p_dst, ...@@ -160,7 +166,7 @@ static void Blend( filter_t *p_filter, picture_t *p_dst,
if( i_width <= 0 || i_height <= 0 ) return; if( i_width <= 0 || i_height <= 0 ) return;
#if 1 #if 0
printf( "chroma: %4.4s -> %4.4s\n", printf( "chroma: %4.4s -> %4.4s\n",
(char *)&p_filter->fmt_in.video.i_chroma, (char *)&p_filter->fmt_in.video.i_chroma,
(char *)&p_filter->fmt_out.video.i_chroma ); (char *)&p_filter->fmt_out.video.i_chroma );
...@@ -168,6 +174,18 @@ static void Blend( filter_t *p_filter, picture_t *p_dst, ...@@ -168,6 +174,18 @@ static void Blend( filter_t *p_filter, picture_t *p_dst,
switch( p_filter->fmt_in.video.i_chroma ) switch( p_filter->fmt_in.video.i_chroma )
{ {
case VLC_FOURCC('Y','V','1','2'):
case VLC_FOURCC('I','4','2','0'):
if( i_alpha == 0xff &&
( p_filter->fmt_out.video.i_chroma == VLC_FOURCC('I','4','2','0')
|| p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','V','1','2')
) )
{
BlendI420I420( p_filter, p_dst, p_dst_orig, p_src,
i_x_offset, i_y_offset,
i_width, i_height );
return;
}
case VLC_FOURCC('Y','U','V','A'): case VLC_FOURCC('Y','U','V','A'):
switch( p_filter->fmt_out.video.i_chroma ) switch( p_filter->fmt_out.video.i_chroma )
{ {
...@@ -303,7 +321,7 @@ static void BlendI420( filter_t *p_filter, picture_t *p_dst, ...@@ -303,7 +321,7 @@ static void BlendI420( filter_t *p_filter, picture_t *p_dst,
uint8_t *p_src1_u, *p_src2_u, *p_dst_u; uint8_t *p_src1_u, *p_src2_u, *p_dst_u;
uint8_t *p_src1_v, *p_src2_v, *p_dst_v; uint8_t *p_src1_v, *p_src2_v, *p_dst_v;
uint8_t *p_trans; uint8_t *p_trans;
int i_x, i_y, i_trans; int i_x, i_y, i_trans = 0;
vlc_bool_t b_even_scanline = i_y_offset % 2; vlc_bool_t b_even_scanline = i_y_offset % 2;
i_dst_pitch = p_dst->p[Y_PLANE].i_pitch; i_dst_pitch = p_dst->p[Y_PLANE].i_pitch;
...@@ -345,15 +363,24 @@ static void BlendI420( filter_t *p_filter, picture_t *p_dst, ...@@ -345,15 +363,24 @@ static void BlendI420( filter_t *p_filter, picture_t *p_dst,
p_filter->fmt_in.video.i_x_offset/2 + p_filter->fmt_in.video.i_x_offset/2 +
p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2; p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
p_trans = p_src->p[A_PLANE].p_pixels + if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','V','1','2') ||
p_filter->fmt_in.video.i_x_offset + p_filter->fmt_in.video.i_chroma == VLC_FOURCC('I','4','2','0') )
p_src->p[A_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset; {
p_trans = NULL;
i_trans = i_alpha;
}
else
{
p_trans = p_src->p[A_PLANE].p_pixels +
p_filter->fmt_in.video.i_x_offset +
p_src->p[A_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset;
}
#define MAX_TRANS 255 #define MAX_TRANS 255
#define TRANS_BITS 8 #define TRANS_BITS 8
/* Draw until we reach the bottom of the subtitle */ /* Draw until we reach the bottom of the subtitle */
for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src2_pitch, for( i_y = 0; i_y < i_height; i_y++, p_trans += p_trans?i_src2_pitch:0,
p_dst_y += i_dst_pitch, p_src1_y += i_src1_pitch, p_dst_y += i_dst_pitch, p_src1_y += i_src1_pitch,
p_src2_y += i_src2_pitch, p_src2_y += i_src2_pitch,
p_dst_u += b_even_scanline ? i_dst_pitch/2 : 0, p_dst_u += b_even_scanline ? i_dst_pitch/2 : 0,
...@@ -368,7 +395,8 @@ static void BlendI420( filter_t *p_filter, picture_t *p_dst, ...@@ -368,7 +395,8 @@ static void BlendI420( filter_t *p_filter, picture_t *p_dst,
/* Draw until we reach the end of the line */ /* Draw until we reach the end of the line */
for( i_x = 0; i_x < i_width; i_x++ ) for( i_x = 0; i_x < i_width; i_x++ )
{ {
i_trans = ( p_trans[i_x] * i_alpha ) / 255; if( p_trans )
i_trans = ( p_trans[i_x] * i_alpha ) / 255;
if( !i_trans ) if( !i_trans )
{ {
/* Completely transparent. Don't change pixel */ /* Completely transparent. Don't change pixel */
...@@ -409,6 +437,84 @@ static void BlendI420( filter_t *p_filter, picture_t *p_dst, ...@@ -409,6 +437,84 @@ static void BlendI420( filter_t *p_filter, picture_t *p_dst,
return; return;
} }
static void BlendI420I420( filter_t *p_filter, picture_t *p_dst,
picture_t *p_dst_orig, picture_t *p_src,
int i_x_offset, int i_y_offset,
int i_width, int i_height )
{
int i_src1_pitch, i_src2_pitch, i_dst_pitch;
uint8_t *p_src1_y, *p_src2_y, *p_dst_y;
uint8_t *p_src1_u, *p_src2_u, *p_dst_u;
uint8_t *p_src1_v, *p_src2_v, *p_dst_v;
int i_y;
vlc_bool_t b_even_scanline = i_y_offset % 2;
i_dst_pitch = p_dst->p[Y_PLANE].i_pitch;
p_dst_y = p_dst->p[Y_PLANE].p_pixels + i_x_offset +
p_filter->fmt_out.video.i_x_offset +
p_dst->p[Y_PLANE].i_pitch *
( i_y_offset + p_filter->fmt_out.video.i_y_offset );
p_dst_u = p_dst->p[U_PLANE].p_pixels + i_x_offset/2 +
p_filter->fmt_out.video.i_x_offset/2 +
( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
p_dst->p[U_PLANE].i_pitch;
p_dst_v = p_dst->p[V_PLANE].p_pixels + i_x_offset/2 +
p_filter->fmt_out.video.i_x_offset/2 +
( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
p_dst->p[V_PLANE].i_pitch;
i_src1_pitch = p_dst_orig->p[Y_PLANE].i_pitch;
p_src1_y = p_dst_orig->p[Y_PLANE].p_pixels + i_x_offset +
p_filter->fmt_out.video.i_x_offset +
p_dst_orig->p[Y_PLANE].i_pitch *
( i_y_offset + p_filter->fmt_out.video.i_y_offset );
p_src1_u = p_dst_orig->p[U_PLANE].p_pixels + i_x_offset/2 +
p_filter->fmt_out.video.i_x_offset/2 +
( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
p_dst_orig->p[U_PLANE].i_pitch;
p_src1_v = p_dst_orig->p[V_PLANE].p_pixels + i_x_offset/2 +
p_filter->fmt_out.video.i_x_offset/2 +
( i_y_offset + p_filter->fmt_out.video.i_y_offset ) / 2 *
p_dst_orig->p[V_PLANE].i_pitch;
i_src2_pitch = p_src->p[Y_PLANE].i_pitch;
p_src2_y = p_src->p[Y_PLANE].p_pixels +
p_filter->fmt_in.video.i_x_offset +
p_src->p[Y_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset;
p_src2_u = p_src->p[U_PLANE].p_pixels +
p_filter->fmt_in.video.i_x_offset/2 +
p_src->p[U_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
p_src2_v = p_src->p[V_PLANE].p_pixels +
p_filter->fmt_in.video.i_x_offset/2 +
p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
i_width &= ~1;
/* Draw until we reach the bottom of the subtitle */
for( i_y = 0; i_y < i_height; i_y++,
p_dst_y += i_dst_pitch, p_src1_y += i_src1_pitch,
p_src2_y += i_src2_pitch,
p_dst_u += b_even_scanline ? i_dst_pitch/2 : 0,
p_src1_u += b_even_scanline ? i_src1_pitch/2 : 0,
p_src2_u += i_src2_pitch,
p_dst_v += b_even_scanline ? i_dst_pitch/2 : 0,
p_src1_v += b_even_scanline ? i_src1_pitch/2 : 0,
p_src2_v += i_src2_pitch )
{
b_even_scanline = !b_even_scanline;
/* Completely opaque. Completely overwrite underlying pixel */
p_filter->p_libvlc->pf_memcpy( p_dst_y, p_src2_y, i_width );
if( b_even_scanline )
{
p_filter->p_libvlc->pf_memcpy( p_dst_u, p_src2_u, i_width/2 );
p_filter->p_libvlc->pf_memcpy( p_dst_y, p_src2_y, i_width/2 );
}
}
return;
}
static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic, static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic,
picture_t *p_dst_orig, picture_t *p_src, picture_t *p_dst_orig, picture_t *p_src,
...@@ -419,7 +525,7 @@ static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic, ...@@ -419,7 +525,7 @@ static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic,
uint8_t *p_dst, *p_src1, *p_src2_y; uint8_t *p_dst, *p_src1, *p_src2_y;
uint8_t *p_src2_u, *p_src2_v; uint8_t *p_src2_u, *p_src2_v;
uint8_t *p_trans; uint8_t *p_trans;
int i_x, i_y, i_pix_pitch; int i_x, i_y, i_pix_pitch, i_trans = 0;
int r, g, b; int r, g, b;
i_pix_pitch = p_dst_pic->p->i_pixel_pitch; i_pix_pitch = p_dst_pic->p->i_pixel_pitch;
...@@ -446,15 +552,24 @@ static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic, ...@@ -446,15 +552,24 @@ static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic,
p_filter->fmt_in.video.i_x_offset/2 + p_filter->fmt_in.video.i_x_offset/2 +
p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2; p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
p_trans = p_src->p[A_PLANE].p_pixels + if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','V','1','2') ||
p_filter->fmt_in.video.i_x_offset + p_filter->fmt_in.video.i_chroma == VLC_FOURCC('I','4','2','0') )
p_src->p[A_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset; {
p_trans = NULL;
i_trans = i_alpha;
}
else
{
p_trans = p_src->p[A_PLANE].p_pixels +
p_filter->fmt_in.video.i_x_offset +
p_src->p[A_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset;
}
#define MAX_TRANS 255 #define MAX_TRANS 255
#define TRANS_BITS 8 #define TRANS_BITS 8
/* Draw until we reach the bottom of the subtitle */ /* Draw until we reach the bottom of the subtitle */
for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src2_pitch, for( i_y = 0; i_y < i_height; i_y++, p_trans += p_trans?i_src2_pitch:0,
p_dst += i_dst_pitch, p_src1 += i_src1_pitch, p_dst += i_dst_pitch, p_src1 += i_src1_pitch,
p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch, p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch,
p_src2_v += i_src2_pitch ) p_src2_v += i_src2_pitch )
...@@ -462,12 +577,14 @@ static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic, ...@@ -462,12 +577,14 @@ static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic,
/* Draw until we reach the end of the line */ /* Draw until we reach the end of the line */
for( i_x = 0; i_x < i_width; i_x++ ) for( i_x = 0; i_x < i_width; i_x++ )
{ {
if( !p_trans[i_x] ) if( p_trans )
i_trans = ( p_trans[i_x] * i_alpha ) / 255;
if( !i_trans )
{ {
/* Completely transparent. Don't change pixel */ /* Completely transparent. Don't change pixel */
continue; continue;
} }
else if( p_trans[i_x] == MAX_TRANS ) else if( i_trans == MAX_TRANS )
{ {
/* Completely opaque. Completely overwrite underlying pixel */ /* Completely opaque. Completely overwrite underlying pixel */
yuv_to_rgb( &r, &g, &b, yuv_to_rgb( &r, &g, &b,
...@@ -478,6 +595,7 @@ static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic, ...@@ -478,6 +595,7 @@ static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic,
} }
/* Blending */ /* Blending */
/* FIXME: do the blending */
yuv_to_rgb( &r, &g, &b, yuv_to_rgb( &r, &g, &b,
p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] ); p_src2_y[i_x], p_src2_u[i_x], p_src2_v[i_x] );
...@@ -500,7 +618,7 @@ static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic, ...@@ -500,7 +618,7 @@ static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic,
uint8_t *p_dst, *p_src1, *p_src2_y; uint8_t *p_dst, *p_src1, *p_src2_y;
uint8_t *p_src2_u, *p_src2_v; uint8_t *p_src2_u, *p_src2_v;
uint8_t *p_trans; uint8_t *p_trans;
int i_x, i_y, i_pix_pitch, i_trans; int i_x, i_y, i_pix_pitch, i_trans = 0;
int r, g, b; int r, g, b;
i_pix_pitch = p_dst_pic->p->i_pixel_pitch; i_pix_pitch = p_dst_pic->p->i_pixel_pitch;
...@@ -527,15 +645,24 @@ static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic, ...@@ -527,15 +645,24 @@ static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic,
p_filter->fmt_in.video.i_x_offset/2 + p_filter->fmt_in.video.i_x_offset/2 +
p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2; p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
p_trans = p_src->p[A_PLANE].p_pixels + if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','V','1','2') ||
p_filter->fmt_in.video.i_x_offset + p_filter->fmt_in.video.i_chroma == VLC_FOURCC('I','4','2','0') )
p_src->p[A_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset; {
p_trans = NULL;
i_trans = i_alpha;
}
else
{
p_trans = p_src->p[A_PLANE].p_pixels +
p_filter->fmt_in.video.i_x_offset +
p_src->p[A_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset;
}
#define MAX_TRANS 255 #define MAX_TRANS 255
#define TRANS_BITS 8 #define TRANS_BITS 8
/* Draw until we reach the bottom of the subtitle */ /* Draw until we reach the bottom of the subtitle */
for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src2_pitch, for( i_y = 0; i_y < i_height; i_y++, p_trans += p_trans?i_src2_pitch:0,
p_dst += i_dst_pitch, p_src1 += i_src1_pitch, p_dst += i_dst_pitch, p_src1 += i_src1_pitch,
p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch, p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch,
p_src2_v += i_src2_pitch ) p_src2_v += i_src2_pitch )
...@@ -543,7 +670,8 @@ static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic, ...@@ -543,7 +670,8 @@ static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic,
/* Draw until we reach the end of the line */ /* Draw until we reach the end of the line */
for( i_x = 0; i_x < i_width; i_x++ ) for( i_x = 0; i_x < i_width; i_x++ )
{ {
i_trans = ( p_trans[i_x] * i_alpha ) / 255; if( p_trans )
i_trans = ( p_trans[i_x] * i_alpha ) / 255;
if( !i_trans ) if( !i_trans )
{ {
/* Completely transparent. Don't change pixel */ /* Completely transparent. Don't change pixel */
...@@ -592,7 +720,7 @@ static void BlendYUVPacked( filter_t *p_filter, picture_t *p_dst_pic, ...@@ -592,7 +720,7 @@ static void BlendYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
uint8_t *p_dst, *p_src1, *p_src2_y; uint8_t *p_dst, *p_src1, *p_src2_y;
uint8_t *p_src2_u, *p_src2_v; uint8_t *p_src2_u, *p_src2_v;
uint8_t *p_trans; uint8_t *p_trans;
int i_x, i_y, i_pix_pitch, i_trans; int i_x, i_y, i_pix_pitch, i_trans = 0;
vlc_bool_t b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2); vlc_bool_t b_even = !((i_x_offset + p_filter->fmt_out.video.i_x_offset)%2);
int i_l_offset = 0, i_u_offset = 0, i_v_offset = 0; int i_l_offset = 0, i_u_offset = 0, i_v_offset = 0;
...@@ -639,9 +767,18 @@ static void BlendYUVPacked( filter_t *p_filter, picture_t *p_dst_pic, ...@@ -639,9 +767,18 @@ static void BlendYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
p_filter->fmt_in.video.i_x_offset/2 + p_filter->fmt_in.video.i_x_offset/2 +
p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2; p_src->p[V_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset/2;
p_trans = p_src->p[A_PLANE].p_pixels + if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','V','1','2') ||
p_filter->fmt_in.video.i_x_offset + p_filter->fmt_in.video.i_chroma == VLC_FOURCC('I','4','2','0') )
p_src->p[A_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset; {
p_trans = NULL;
i_trans = i_alpha;
}
else
{
p_trans = p_src->p[A_PLANE].p_pixels +
p_filter->fmt_in.video.i_x_offset +
p_src->p[A_PLANE].i_pitch * p_filter->fmt_in.video.i_y_offset;
}
i_width = (i_width >> 1) << 1; /* Needs to be a multiple of 2 */ i_width = (i_width >> 1) << 1; /* Needs to be a multiple of 2 */
...@@ -649,7 +786,7 @@ static void BlendYUVPacked( filter_t *p_filter, picture_t *p_dst_pic, ...@@ -649,7 +786,7 @@ static void BlendYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
#define TRANS_BITS 8 #define TRANS_BITS 8
/* Draw until we reach the bottom of the subtitle */ /* Draw until we reach the bottom of the subtitle */
for( i_y = 0; i_y < i_height; i_y++, p_trans += i_src2_pitch, for( i_y = 0; i_y < i_height; i_y++, p_trans += p_trans?i_src2_pitch:0,
p_dst += i_dst_pitch, p_src1 += i_src1_pitch, p_dst += i_dst_pitch, p_src1 += i_src1_pitch,
p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch, p_src2_y += i_src2_pitch, p_src2_u += i_src2_pitch,
p_src2_v += i_src2_pitch ) p_src2_v += i_src2_pitch )
...@@ -657,7 +794,8 @@ static void BlendYUVPacked( filter_t *p_filter, picture_t *p_dst_pic, ...@@ -657,7 +794,8 @@ static void BlendYUVPacked( filter_t *p_filter, picture_t *p_dst_pic,
/* Draw until we reach the end of the line */ /* Draw until we reach the end of the line */
for( i_x = 0; i_x < i_width; i_x++, b_even = !b_even ) for( i_x = 0; i_x < i_width; i_x++, b_even = !b_even )
{ {
i_trans = ( p_trans[i_x] * i_alpha ) / 255; if( p_trans )
i_trans = ( p_trans[i_x] * i_alpha ) / 255;
if( !i_trans ) if( !i_trans )
{ {
/* Completely transparent. Don't change pixel */ /* Completely transparent. Don't change pixel */
......
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