/**
* Video filter
*/
static picture_t *FilterVideo(filter_t *p_filter, picture_t *p_src)
{
filter_sys_t *p_sys = p_filter->p_sys;
BarGraph_t *p_BarGraph = &(p_sys->p_BarGraph);
picture_t *p_dst = filter_NewPicture(p_filter);
if (!p_dst) {
picture_Release(p_src);
return NULL;
}
picture_Copy(p_dst, p_src);
/* */
vlc_mutex_lock(&p_sys->lock);
/* */
const picture_t *p_pic = p_BarGraph->p_pic;
if (!p_pic)
goto out;
const video_format_t *p_fmt = &p_pic->format;
const int i_dst_w = p_filter->fmt_out.video.i_visible_width;
const int i_dst_h = p_filter->fmt_out.video.i_visible_height;
if (p_sys->i_pos) {
if (p_sys->i_pos & SUBPICTURE_ALIGN_BOTTOM)
p_sys->i_pos_y = i_dst_h - p_fmt->i_visible_height;
else if (!(p_sys->i_pos & SUBPICTURE_ALIGN_TOP))
p_sys->i_pos_y = (i_dst_h - p_fmt->i_visible_height) / 2;
else
p_sys->i_pos_y = 0;
if (p_sys->i_pos & SUBPICTURE_ALIGN_RIGHT)
p_sys->i_pos_x = i_dst_w - p_fmt->i_visible_width;
else if (!(p_sys->i_pos & SUBPICTURE_ALIGN_LEFT))
p_sys->i_pos_x = (i_dst_w - p_fmt->i_visible_width) / 2;
else
p_sys->i_pos_x = 0;
}
/* */
const int i_alpha = p_BarGraph->i_alpha;
if (filter_ConfigureBlend(p_sys->p_blend, i_dst_w, i_dst_h, p_fmt) ||
filter_Blend(p_sys->p_blend, p_dst, p_sys->i_pos_x, p_sys->i_pos_y,
p_pic, i_alpha))
msg_Err(p_filter, "failed to blend a picture");
out:
vlc_mutex_unlock(&p_sys->lock);
picture_Release(p_src);
return p_dst;
}
void picture_BlendSubpicture(picture_t *dst,
filter_t *blend, subpicture_t *src)
{
assert(src && !src->b_fade && src->b_absolute);
for (subpicture_region_t *r = src->p_region; r != NULL; r = r->p_next) {
assert(r->p_picture && r->i_align == 0);
if (filter_ConfigureBlend(blend, dst->format.i_width, dst->format.i_height,
&r->fmt) ||
filter_Blend(blend, dst,
r->i_x, r->i_y, r->p_picture,
src->i_alpha * r->i_alpha / 255)) {
msg_Err(blend, "blending %4.4s to %4.4s failed",
(char *)&blend->fmt_in.video.i_chroma,
(char *)&blend->fmt_out.video.i_chroma );
}
}
}
/**
* Video filter
*/
static picture_t *FilterVideo( filter_t *p_filter, picture_t *p_src )
{
filter_sys_t *p_sys = p_filter->p_sys;
logo_list_t *p_list = &p_sys->list;
picture_t *p_dst = filter_NewPicture( p_filter );
if( !p_dst )
goto exit;
picture_Copy( p_dst, p_src );
/* */
vlc_mutex_lock( &p_sys->lock );
logo_t *p_logo;
if( p_list->i_next_pic < p_src->date )
p_logo = LogoListNext( p_list, p_src->date );
else
p_logo = LogoListCurrent( p_list );
/* */
const picture_t *p_pic = p_logo->p_pic;
if( p_pic )
{
const video_format_t *p_fmt = &p_pic->format;
const int i_dst_w = p_filter->fmt_out.video.i_visible_width;
const int i_dst_h = p_filter->fmt_out.video.i_visible_height;
if( p_sys->i_pos )
{
if( p_sys->i_pos & SUBPICTURE_ALIGN_BOTTOM )
{
p_sys->i_pos_y = i_dst_h - p_fmt->i_visible_height;
}
else if ( !(p_sys->i_pos & SUBPICTURE_ALIGN_TOP) )
{
p_sys->i_pos_y = ( i_dst_h - p_fmt->i_visible_height ) / 2;
}
else
{
p_sys->i_pos_y = 0;
}
if( p_sys->i_pos & SUBPICTURE_ALIGN_RIGHT )
{
p_sys->i_pos_x = i_dst_w - p_fmt->i_visible_width;
}
else if ( !(p_sys->i_pos & SUBPICTURE_ALIGN_LEFT) )
{
p_sys->i_pos_x = ( i_dst_w - p_fmt->i_visible_width ) / 2;
}
else
{
p_sys->i_pos_x = 0;
}
}
/* */
const int i_alpha = p_logo->i_alpha != -1 ? p_logo->i_alpha : p_list->i_alpha;
if( filter_ConfigureBlend( p_sys->p_blend, i_dst_w, i_dst_h, p_fmt ) ||
filter_Blend( p_sys->p_blend, p_dst, p_sys->i_pos_x, p_sys->i_pos_y,
p_pic, i_alpha ) )
{
msg_Err( p_filter, "failed to blend a picture" );
}
}
vlc_mutex_unlock( &p_sys->lock );
exit:
picture_Release( p_src );
return p_dst;
}