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vlc-1.1
Commit c731da37 authored by Simon Latapie's avatar Simon Latapie
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* fixed some bugs in logo filter

parent 402252af
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Showing with 65 additions and 47 deletions
modules/video_filter/logo.c
View file @ c731da37
......@@ -2,7 +2,7 @@
* logo.c : logo video plugin for vlc
*****************************************************************************
* Copyright (C) 2000, 2001, 2002, 2003 VideoLAN
* $Id: logo.c,v 1.2 2003/07/04 19:00:43 titer Exp $
* $Id: logo.c,v 1.3 2003/09/18 21:42:54 garf Exp $
*
* Authors: Simon Latapie <garf@videolan.org>
*
......@@ -141,9 +141,13 @@ static int Init( vout_thread_t *p_vout )
png_bytep * row_pointers;
png_infop info_ptr;
unsigned int i;
unsigned int j;
// unsigned int j;
unsigned int x;
unsigned int y;
int temp;
int i_size;
int i_parity_width;
int i_parity_height;
/* read png file */
filename = config_GetPsz( p_vout, "logo_file" );
......@@ -156,7 +160,8 @@ static int Init( vout_thread_t *p_vout )
p_vout->p_sys->error=1;
msg_Err( p_vout , "file not found %s", filename );
free( filename );
} else
}
else
{
free( filename );
p_vout->p_sys->error=0;
......@@ -174,6 +179,13 @@ static int Init( vout_thread_t *p_vout )
fclose(fp);
/* finish to read the image in the file. Now We have to convert it YUV */
/* initialize yuv plans of the image */
i_parity_width = p_vout->p_sys->width % 2;
i_parity_height = p_vout->p_sys->height % 2;
p_vout->p_sys->height = p_vout->p_sys->height
+ (p_vout->p_sys->height % 2);
p_vout->p_sys->width = p_vout->p_sys->width
+ (p_vout->p_sys->width % 2);
i_size = p_vout->p_sys->height * p_vout->p_sys->width;
p_vout->p_sys->png_image[0] = malloc( i_size );
......@@ -184,44 +196,51 @@ static int Init( vout_thread_t *p_vout )
p_vout->p_sys->png_image_a[1] = malloc( i_size / 4 );
p_vout->p_sys->png_image_a[2] = p_vout->p_sys->png_image_a[1];
/* conversion */
j = 0;
for( i= 0; i < p_vout->p_sys->height * p_vout->p_sys->width ; i++)
for( y = 0; y < p_vout->p_sys->height ; y++)
{
for( x = 0; x < p_vout->p_sys->width ; x++)
{
uint8_t (*p)[4];
int x;
int y;
x = i % p_vout->p_sys->width;
y = i / p_vout->p_sys->width;
int idx;
int idxc;
/* FIXME FIXME */
p = (void*)row_pointers[y];
idx = x + y * p_vout->p_sys->width;
idxc= x/2 + (y/2) * (p_vout->p_sys->width/2);
p_vout->p_sys->png_image_a[0][i]= p[x][3];
p_vout->p_sys->png_image[0][i]= (p[x][0] * 257
if( ((i_parity_width == 0) || (x != (p_vout->p_sys->width - 1))) &&
((i_parity_height == 0) || (y != (p_vout->p_sys->height - 1))))
{
p_vout->p_sys->png_image_a[0][idx]= p[x][3];
p_vout->p_sys->png_image[0][idx]= (p[x][0] * 257
+ p[x][1] * 504
+ p[x][2] * 98)/1000 + 16;
if( ( x % 2 == 0 ) && ( y % 2 == 0 ) )
{
temp = (p[x][2] * 439
- p[x][0] * 148
- p[x][1] * 291)/1000 + 128;
temp = (uint8_t)( temp < 0 ? 0 : temp );
p_vout->p_sys->png_image[1][j] = temp;
temp = __MAX( __MIN( temp, 255 ), 0 );
p_vout->p_sys->png_image[1][idxc] = temp;
temp = ( p[x][0] * 439
- p[x][1] * 368
- p[x][2] * 71)/1000 + 128;
temp = __MAX( __MIN( temp, 255 ), 0 );
p_vout->p_sys->png_image[2][idxc] = temp;
p_vout->p_sys->png_image_a[1][idxc] = p_vout->p_sys->png_image_a[0][idx];
p_vout->p_sys->png_image[2][j] = (uint8_t)( temp < 0 ? 0 : temp );
p_vout->p_sys->png_image_a[1][j] = p_vout->p_sys->png_image_a[0][i];
j++;
}
} else
{
p_vout->p_sys->png_image_a[0][idx]= 0;
}
}
}
/* now we can free row_pointers*/
free(row_pointers);
......@@ -323,7 +342,6 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
{
picture_t *p_outpic;
int i_index;
int i_pic_width;
int tr;
/* This is a new frame. Get a structure from the video_output. */
......@@ -340,17 +358,16 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
vout_DatePicture( p_vout->p_sys->p_vout, p_outpic, p_pic->date );
vout_LinkPicture( p_vout->p_sys->p_vout, p_outpic );
i_pic_width=p_vout->output.i_width;
tr = p_vout->p_sys->trans;
for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
{
memcpy( p_outpic->p[i_index].p_pixels,
p_pic->p[i_index].p_pixels,
p_pic->p[i_index].i_lines * p_pic->p[i_index].i_pitch);
if (p_vout->p_sys->error == 0)
{
unsigned int i;
......@@ -362,17 +379,20 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
if (i_index == 0)
{
p_out = p_outpic->p[i_index].p_pixels + p_vout->p_sys->posy * i_pic_width + p_vout->p_sys->posx;
i_delta = i_pic_width - p_vout->p_sys->width;
p_out = p_outpic->p[i_index].p_pixels +
p_vout->p_sys->posy * p_outpic->p[i_index].i_pitch +
p_vout->p_sys->posx;
i_max = p_vout->p_sys->height;
j_max = p_vout->p_sys->width;
} else
{
p_out = p_outpic->p[i_index].p_pixels + (p_vout->p_sys->posy / 2)* (i_pic_width / 2) + p_vout->p_sys->posx / 2;
i_delta = (i_pic_width - p_vout->p_sys->width) / 2;
p_out = p_outpic->p[i_index].p_pixels +
(p_vout->p_sys->posy/2)* p_outpic->p[i_index].i_pitch +
p_vout->p_sys->posx / 2;
i_max = p_vout->p_sys->height / 2;
j_max = p_vout->p_sys->width / 2;
}
i_delta = p_outpic->p[i_index].i_pitch - j_max;
p_in_a = p_vout->p_sys->png_image_a[i_index];
p_in = p_vout->p_sys->png_image[i_index];
......@@ -383,7 +403,6 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
for( j = 0 ; j < j_max ; j++)
{
*p_out = ( *p_out * ( 65025 - *p_in_a * tr) + *p_in * *p_in_a * tr) >> 16;
p_out++;
p_in++;
p_in_a++;
......@@ -391,7 +410,6 @@ static void Render( vout_thread_t *p_vout, picture_t *p_pic )
p_out += i_delta;
}
}
}
vout_UnlinkPicture( p_vout->p_sys->p_vout, p_outpic );
......
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