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Commit e2ff540d authored by Gildas Bazin's avatar Gildas Bazin
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* modules/video_filter/blend.c: sanity checks.

parent d8276739
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Showing with 45 additions and 70 deletions
modules/video_filter/blend.c
View file @ e2ff540d
......@@ -44,19 +44,19 @@ static void CloseFilter( vlc_object_t * );
static void Blend( filter_t *, picture_t *, picture_t *, picture_t *,
int, int );
static void BlendI420( filter_t *, picture_t *, picture_t *, picture_t *,
int, int );
int, int, int, int );
static void BlendR16( filter_t *, picture_t *, picture_t *, picture_t *,
int, int );
int, int, int, int );
static void BlendR24( filter_t *, picture_t *, picture_t *, picture_t *,
int, int );
int, int, int, int );
static void BlendYUY2( filter_t *, picture_t *, picture_t *, picture_t *,
int, int );
int, int, int, int );
static void BlendPalI420( filter_t *, picture_t *, picture_t *, picture_t *,
int, int );
int, int, int, int );
static void BlendPalYUY2( filter_t *, picture_t *, picture_t *, picture_t *,
int, int );
int, int, int, int );
static void BlendPalRV( filter_t *, picture_t *, picture_t *, picture_t *,
int, int );
int, int, int, int );
/*****************************************************************************
* Module descriptor
......@@ -117,26 +117,36 @@ static void Blend( 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, i_height;
i_width = __MIN( p_filter->fmt_out.video.i_visible_width - i_x_offset,
p_filter->fmt_in.video.i_visible_width );
i_height = __MIN( p_filter->fmt_out.video.i_visible_height - i_y_offset,
p_filter->fmt_in.video.i_visible_height );
if( i_width <= 0 || i_height <= 0 ) return;
if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','A') &&
( 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') ) )
{
BlendI420( p_filter, p_dst, p_dst_orig, p_src,
i_x_offset, i_y_offset );
i_x_offset, i_y_offset, i_width, i_height );
return;
}
if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','A') &&
p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','U','Y','2') )
{
BlendYUY2( p_filter, p_dst, p_dst_orig, p_src,
i_x_offset, i_y_offset );
i_x_offset, i_y_offset, i_width, i_height );
return;
}
if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','A') &&
p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','1','6') )
{
BlendR16( p_filter, p_dst, p_dst_orig, p_src,
i_x_offset, i_y_offset );
i_x_offset, i_y_offset, i_width, i_height );
return;
}
if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','A') &&
......@@ -144,7 +154,7 @@ static void Blend( filter_t *p_filter, picture_t *p_dst,
p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','3','2') ) )
{
BlendR24( p_filter, p_dst, p_dst_orig, p_src,
i_x_offset, i_y_offset );
i_x_offset, i_y_offset, i_width, i_height );
return;
}
if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','P') &&
......@@ -152,14 +162,14 @@ static void Blend( filter_t *p_filter, picture_t *p_dst,
p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','V','1','2') ) )
{
BlendPalI420( p_filter, p_dst, p_dst_orig, p_src,
i_x_offset, i_y_offset );
i_x_offset, i_y_offset, i_width, i_height );
return;
}
if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','P') &&
p_filter->fmt_out.video.i_chroma == VLC_FOURCC('Y','U','Y','2') )
{
BlendPalYUY2( p_filter, p_dst, p_dst_orig, p_src,
i_x_offset, i_y_offset );
i_x_offset, i_y_offset, i_width, i_height );
return;
}
if( p_filter->fmt_in.video.i_chroma == VLC_FOURCC('Y','U','V','P') &&
......@@ -168,7 +178,7 @@ static void Blend( filter_t *p_filter, picture_t *p_dst,
p_filter->fmt_out.video.i_chroma == VLC_FOURCC('R','V','3','2') ) )
{
BlendPalRV( p_filter, p_dst, p_dst_orig, p_src,
i_x_offset, i_y_offset );
i_x_offset, i_y_offset, i_width, i_height );
return;
}
......@@ -177,14 +187,15 @@ static void Blend( filter_t *p_filter, picture_t *p_dst,
static void BlendI420( 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_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;
uint8_t *p_trans;
int i_width, i_height, i_x, i_y;
int i_x, i_y;
vlc_bool_t b_even_scanline = i_y_offset % 2;
i_dst_pitch = p_dst->p[Y_PLANE].i_pitch;
......@@ -230,12 +241,6 @@ static void BlendI420( filter_t *p_filter, picture_t *p_dst,
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 = __MIN( p_filter->fmt_out.video.i_visible_width - i_x_offset,
p_filter->fmt_in.video.i_visible_width );
i_height = __MIN( p_filter->fmt_out.video.i_visible_height - i_y_offset,
p_filter->fmt_in.video.i_visible_height );
#define MAX_TRANS 255
#define TRANS_BITS 8
......@@ -321,13 +326,14 @@ static inline void yuv_to_rgb( int *r, int *g, int *b,
static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic,
picture_t *p_dst_orig, picture_t *p_src,
int i_x_offset, int i_y_offset )
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_dst, *p_src1, *p_src2_y;
uint8_t *p_src2_u, *p_src2_v;
uint8_t *p_trans;
int i_width, i_height, i_x, i_y, i_pix_pitch;
int i_x, i_y, i_pix_pitch;
int r, g, b;
i_pix_pitch = p_dst_pic->p->i_pixel_pitch;
......@@ -358,12 +364,6 @@ static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic,
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 = __MIN( p_filter->fmt_out.video.i_visible_width - i_x_offset,
p_filter->fmt_in.video.i_visible_width );
i_height = __MIN( p_filter->fmt_out.video.i_visible_height - i_y_offset,
p_filter->fmt_in.video.i_visible_height );
#define MAX_TRANS 255
#define TRANS_BITS 8
......@@ -407,13 +407,14 @@ static void BlendR16( filter_t *p_filter, picture_t *p_dst_pic,
static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic,
picture_t *p_dst_orig, picture_t *p_src,
int i_x_offset, int i_y_offset )
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_dst, *p_src1, *p_src2_y;
uint8_t *p_src2_u, *p_src2_v;
uint8_t *p_trans;
int i_width, i_height, i_x, i_y, i_pix_pitch;
int i_x, i_y, i_pix_pitch;
int r, g, b;
i_pix_pitch = p_dst_pic->p->i_pixel_pitch;
......@@ -444,12 +445,6 @@ static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic,
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 = __MIN( p_filter->fmt_out.video.i_visible_width - i_x_offset,
p_filter->fmt_in.video.i_visible_width );
i_height = __MIN( p_filter->fmt_out.video.i_visible_height - i_y_offset,
p_filter->fmt_in.video.i_visible_height );
#define MAX_TRANS 255
#define TRANS_BITS 8
......@@ -503,13 +498,14 @@ static void BlendR24( filter_t *p_filter, picture_t *p_dst_pic,
static void BlendYUY2( filter_t *p_filter, picture_t *p_dst_pic,
picture_t *p_dst_orig, picture_t *p_src,
int i_x_offset, int i_y_offset )
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_dst, *p_src1, *p_src2_y;
uint8_t *p_src2_u, *p_src2_v;
uint8_t *p_trans;
int i_width, i_height, i_x, i_y, i_pix_pitch;
int i_x, i_y, i_pix_pitch;
i_pix_pitch = 2;
i_dst_pitch = p_dst_pic->p->i_pitch;
......@@ -539,12 +535,6 @@ static void BlendYUY2( filter_t *p_filter, picture_t *p_dst_pic,
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 = __MIN( p_filter->fmt_out.video.i_visible_width - i_x_offset,
p_filter->fmt_in.video.i_visible_width );
i_height = __MIN( p_filter->fmt_out.video.i_visible_height - i_y_offset,
p_filter->fmt_in.video.i_visible_height );
#define MAX_TRANS 255
#define TRANS_BITS 8
......@@ -609,13 +599,14 @@ static void BlendYUY2( filter_t *p_filter, picture_t *p_dst_pic,
static void BlendPalI420( 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_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, *p_dst_y;
uint8_t *p_src1_u, *p_dst_u;
uint8_t *p_src1_v, *p_dst_v;
int i_width, i_height, i_x, i_y;
int i_x, i_y;
vlc_bool_t b_even_scanline = i_y_offset % 2;
i_dst_pitch = p_dst->p[Y_PLANE].i_pitch;
......@@ -650,12 +641,6 @@ static void BlendPalI420( filter_t *p_filter, picture_t *p_dst,
p_src2 = p_src->p->p_pixels + p_filter->fmt_in.video.i_x_offset +
i_src2_pitch * p_filter->fmt_in.video.i_y_offset;
i_width = __MIN( p_filter->fmt_out.video.i_visible_width - i_x_offset,
p_filter->fmt_in.video.i_visible_width );
i_height = __MIN( p_filter->fmt_out.video.i_visible_height - i_y_offset,
p_filter->fmt_in.video.i_visible_height );
#define MAX_TRANS 255
#define TRANS_BITS 8
#define p_trans p_src2
......@@ -720,11 +705,12 @@ static void BlendPalI420( filter_t *p_filter, picture_t *p_dst,
static void BlendPalYUY2( filter_t *p_filter, picture_t *p_dst_pic,
picture_t *p_dst_orig, picture_t *p_src,
int i_x_offset, int i_y_offset )
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, *p_src2, *p_dst;
int i_width, i_height, i_x, i_y, i_pix_pitch;
int i_x, i_y, i_pix_pitch;
i_pix_pitch = 2;
i_dst_pitch = p_dst_pic->p->i_pitch;
......@@ -741,12 +727,6 @@ static void BlendPalYUY2( filter_t *p_filter, picture_t *p_dst_pic,
p_src2 = p_src->p->p_pixels + p_filter->fmt_in.video.i_x_offset +
i_src2_pitch * p_filter->fmt_in.video.i_y_offset;
i_width = __MIN( p_filter->fmt_out.video.i_visible_width - i_x_offset,
p_filter->fmt_in.video.i_visible_width );
i_height = __MIN( p_filter->fmt_out.video.i_visible_height - i_y_offset,
p_filter->fmt_in.video.i_visible_height );
#define MAX_TRANS 255
#define TRANS_BITS 8
#define p_trans p_src2
......@@ -813,11 +793,12 @@ static void BlendPalYUY2( filter_t *p_filter, picture_t *p_dst_pic,
static void BlendPalRV( filter_t *p_filter, picture_t *p_dst_pic,
picture_t *p_dst_orig, picture_t *p_src,
int i_x_offset, int i_y_offset )
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, *p_src2, *p_dst;
int i_width, i_height, i_x, i_y, i_pix_pitch;
int i_x, i_y, i_pix_pitch;
int r, g, b;
video_palette_t rgbpalette;
......@@ -836,12 +817,6 @@ static void BlendPalRV( filter_t *p_filter, picture_t *p_dst_pic,
p_src2 = p_src->p->p_pixels + p_filter->fmt_in.video.i_x_offset +
i_src2_pitch * p_filter->fmt_in.video.i_y_offset;
i_width = __MIN( p_filter->fmt_out.video.i_visible_width - i_x_offset,
p_filter->fmt_in.video.i_visible_width );
i_height = __MIN( p_filter->fmt_out.video.i_visible_height - i_y_offset,
p_filter->fmt_in.video.i_visible_height );
#define MAX_TRANS 255
#define TRANS_BITS 8
#define p_trans p_src2
......
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