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Code

Bounding box and partial update patch for vob/dvdsub by Hephooey.

Browse Source 
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6191 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
atmos4 2002-05-25 17:40:40 +00:00
parent 76c15cc6cd
commit 73a97eb400
3 changed files with 55 additions and 6 deletions
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22
libvo/sub.c
View File

@ -320,6 +320,22 @@ inline static void vo_update_text_sub(mp_osd_obj_t* obj,int dxs,int dys){
}
inline static void vo_update_spudec_sub(mp_osd_obj_t* obj, int dxs, int dys)
{
unsigned int bbox[4];
int i;
spudec_calc_bbox(vo_spudec, dxs, dys, bbox);
obj->bbox.x1 = bbox[0];
obj->bbox.x2 = bbox[1];
obj->bbox.y1 = bbox[2];
obj->bbox.y2 = bbox[3];
obj->flags |= OSDFLAG_BBOX;
}
inline static void vo_draw_spudec_sub(mp_osd_obj_t* obj, void (*draw_alpha)(int x0, int y0, int w, int h, unsigned char* src, unsigned char* srca, int stride))
{
spudec_draw_scaled(vo_spudec, obj->dxs, obj->dys, draw_alpha);
}
inline static void vo_draw_text_sub(mp_osd_obj_t* obj,void (*draw_alpha)(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride)){
int i,j,c,x,l,font;
int y=obj->y;
@ -385,8 +401,10 @@ int vo_update_osd(int dxs,int dys){
vo_update_text_progbar(obj,dxs,dys);
break;
case OSDTYPE_SPU:
if(vo_spudec && spudec_visible(vo_spudec))
if(vo_spudec && spudec_visible(vo_spudec)){
vo_update_spudec_sub(obj, dxs, dys);
obj->flags|=OSDFLAG_VISIBLE|OSDFLAG_CHANGED;
}
else
obj->flags&=~OSDFLAG_VISIBLE;
break;
@ -473,7 +491,7 @@ void vo_draw_text(int dxs,int dys,void (*draw_alpha)(int x0,int y0, int w,int h,
vo_osd_changed_flag=obj->flags&OSDFLAG_CHANGED; // temp hack
switch(obj->type){
case OSDTYPE_SPU:
spudec_draw_scaled(vo_spudec, dxs, dys, draw_alpha); // FIXME
vo_draw_spudec_sub(obj, draw_alpha); // FIXME
break;
case OSDTYPE_OSD:
vo_draw_text_osd(obj,draw_alpha);

3
mplayer.c
View File

@ -2960,7 +2960,8 @@ if(vo_config_count && vo_spudec) {
spudec_assemble(vo_spudec,packet,len,timestamp);
}
/* Don't know how to detect wether the sub has changed or not */
/* detect wether the sub has changed or not */
if(spudec_changed(vo_spudec))
vo_osd_changed(OSDTYPE_SPU);
current_module=NULL;
}

34
spudec.c
View File

@ -3,7 +3,7 @@
1: aproximate
2: full (slowest, best looking)
*/
#define ANTIALIASING_ALGORITHM 1
#define ANTIALIASING_ALGORITHM 2
/* SPUdec.c
Skeleton of function spudec_process_controll() is from xine sources.
@ -69,6 +69,7 @@ typedef struct {
vo_functions_t *hw_spu;
} spudec_handle_t;
static int spu_changed = 0;
static inline unsigned int get_be16(const unsigned char *p)
{
@ -347,8 +348,14 @@ static void spudec_decode(spudec_handle_t *this, unsigned int pts100)
spudec_process_control(this, pts100);
spudec_process_data(this);
}
spu_changed = 1;
}
int spudec_changed(void * this)
{
spudec_handle_t * spu = (spudec_handle_t*)this;
return (spu_changed|(spu->now_pts > spu->end_pts));
}
void spudec_assemble(void *this, unsigned char *packet, unsigned int len, unsigned int pts100)
{
@ -445,6 +452,27 @@ void spudec_draw(void *this, void (*draw_alpha)(int x0,int y0, int w,int h, unsi
spu->image, spu->aimage, spu->stride);
}
void spudec_calc_bbox(void *me, unsigned int dxs, unsigned int dys, unsigned int* bbox)
{
spudec_handle_t *spu;
spu = (spudec_handle_t *)me;
if (spu->orig_frame_width == 0 || spu->orig_frame_height == 0
|| (spu->orig_frame_width == dxs && spu->orig_frame_height == dys)) {
bbox[0] = spu->start_col;
bbox[1] = spu->start_col + spu->width;
bbox[2] = spu->start_row;
bbox[3] = spu->start_row + spu->height;
}
else if (spu->scaled_frame_width != dxs || spu->scaled_frame_height != dys) {
unsigned int scalex = 0x100 * dxs / spu->orig_frame_width;
unsigned int scaley = 0x100 * dys / spu->orig_frame_height;
bbox[0] = spu->start_col * scalex / 0x100;
bbox[1] = spu->start_col * scalex / 0x100 + spu->width * scalex / 0x100;
bbox[2] = spu->start_row * scaley / 0x100;
bbox[3] = spu->start_row * scaley / 0x100 + spu->height * scaley / 0x100;
}
}
/* transform mplayer's alpha value into an opacity value that is linear */
static inline int canon_alpha(int alpha)
{
@ -718,9 +746,11 @@ void spudec_draw_scaled(void *me, unsigned int dxs, unsigned int dys, void (*dra
spu->scaled_frame_height = dys;
}
}
if (spu->scaled_image)
if (spu->scaled_image){
draw_alpha(spu->scaled_start_col, spu->scaled_start_row, spu->scaled_width, spu->scaled_height,
spu->scaled_image, spu->scaled_aimage, spu->scaled_stride);
spu_changed = 0;
}
}
}
else