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mpv/libmpcodecs/vf_expand.c
mplayer-svn d9d80705e6 vf_expand: add sanity checks 
Make vf expand more picky:
refuse operating on compressed or hwaccel formats and
fix up offsets that would cause color corruption for YUV
formats with downsampled chroma.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@34356 b3059339-0415-0410-9bf9-f77b7e298cf2
Author: reimar
2012-08-03 01:35:03 +02:00

466 lines
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/*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#define OSD_SUPPORT
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include "config.h"
#include "mp_msg.h"
#include "options.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libvo/fastmemcpy.h"
#include "libavutil/avutil.h"
#ifdef OSD_SUPPORT
#include "sub/sub.h"
#include "libvo/osd.h"
#endif
#include "m_option.h"
#include "m_struct.h"
static struct vf_priv_s {
// These four values are a backup of the values parsed from the command line.
// This is necessary so that we do not get a mess upon filter reinit due to
// e.g. aspect changes and with only aspect specified on the command line,
// where we would otherwise use the values calculated for a different aspect
// instead of recalculating them again.
int cfg_exp_w, cfg_exp_h;
int cfg_exp_x, cfg_exp_y;
int exp_w,exp_h;
int exp_x,exp_y;
int osd_enabled;
double aspect;
int round;
int passthrough;
int first_slice;
struct osd_state *osd;
} const vf_priv_dflt = {
-1,-1,
-1,-1,
-1,-1,
-1,-1,
0,
0.,
1,
0,
0
};
//===========================================================================//
#ifdef OSD_SUPPORT
static void draw_func(void *ctx, int x0,int y0, int w,int h,unsigned char* src, unsigned char *srca, int stride){
struct vf_instance *vf = ctx;
unsigned char* dst;
if(w<=0 || h<=0) return; // nothing to do...
// printf("OSD redraw: %d;%d %dx%d \n",x0,y0,w,h);
dst=vf->dmpi->planes[0]+
vf->dmpi->stride[0]*y0+
(vf->dmpi->bpp>>3)*x0;
switch(vf->dmpi->imgfmt){
case IMGFMT_BGR12:
case IMGFMT_RGB12:
vo_draw_alpha_rgb12(w, h, src, srca, stride, dst, vf->dmpi->stride[0]);
break;
case IMGFMT_BGR15:
case IMGFMT_RGB15:
vo_draw_alpha_rgb15(w,h,src,srca,stride,dst,vf->dmpi->stride[0]);
break;
case IMGFMT_BGR16:
case IMGFMT_RGB16:
vo_draw_alpha_rgb16(w,h,src,srca,stride,dst,vf->dmpi->stride[0]);
break;
case IMGFMT_BGR24:
case IMGFMT_RGB24:
vo_draw_alpha_rgb24(w,h,src,srca,stride,dst,vf->dmpi->stride[0]);
break;
case IMGFMT_BGR32:
case IMGFMT_RGB32:
vo_draw_alpha_rgb32(w,h,src,srca,stride,dst,vf->dmpi->stride[0]);
break;
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_YVU9:
case IMGFMT_IF09:
case IMGFMT_Y800:
case IMGFMT_Y8:
vo_draw_alpha_yv12(w,h,src,srca,stride,dst,vf->dmpi->stride[0]);
break;
case IMGFMT_YUY2:
vo_draw_alpha_yuy2(w,h,src,srca,stride,dst,vf->dmpi->stride[0]);
break;
case IMGFMT_UYVY:
vo_draw_alpha_yuy2(w,h,src,srca,stride,dst+1,vf->dmpi->stride[0]);
break;
}
}
static void draw_osd(struct vf_instance *vf,int w,int h){
osd_draw_text(vf->priv->osd, vf->priv->exp_w,vf->priv->exp_h,draw_func,vf);
}
#endif
//===========================================================================//
static int config(struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt)
{
struct MPOpts *opts = vf->opts;
mp_image_t test_mpi;
if(outfmt == IMGFMT_MPEGPES) {
vf->priv->passthrough = 1;
return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
}
mp_image_setfmt(&test_mpi, outfmt);
if (outfmt == IMGFMT_IF09 || !test_mpi.bpp) return 0;
vf->priv->exp_x = vf->priv->cfg_exp_x;
vf->priv->exp_y = vf->priv->cfg_exp_y;
vf->priv->exp_w = vf->priv->cfg_exp_w;
vf->priv->exp_h = vf->priv->cfg_exp_h;
// calculate the missing parameters:
#if 0
if(vf->priv->exp_w<width) vf->priv->exp_w=width;
if(vf->priv->exp_h<height) vf->priv->exp_h=height;
#else
if ( vf->priv->exp_w == -1 ) vf->priv->exp_w=width;
else if (vf->priv->exp_w < -1 ) vf->priv->exp_w=width - vf->priv->exp_w;
else if ( vf->priv->exp_w<width ) vf->priv->exp_w=width;
if ( vf->priv->exp_h == -1 ) vf->priv->exp_h=height;
else if ( vf->priv->exp_h < -1 ) vf->priv->exp_h=height - vf->priv->exp_h;
else if( vf->priv->exp_h<height ) vf->priv->exp_h=height;
#endif
if (vf->priv->aspect) {
float adjusted_aspect = vf->priv->aspect;
adjusted_aspect *= ((double)width/height) / ((double)d_width/d_height);
if (vf->priv->exp_h < vf->priv->exp_w / adjusted_aspect) {
vf->priv->exp_h = vf->priv->exp_w / adjusted_aspect + 0.5;
} else {
vf->priv->exp_w = vf->priv->exp_h * adjusted_aspect + 0.5;
}
}
if (vf->priv->round > 1) { // round up.
vf->priv->exp_w = (1 + (vf->priv->exp_w - 1) / vf->priv->round) * vf->priv->round;
vf->priv->exp_h = (1 + (vf->priv->exp_h - 1) / vf->priv->round) * vf->priv->round;
}
if(vf->priv->exp_x<0 || vf->priv->exp_x+width>vf->priv->exp_w) vf->priv->exp_x=(vf->priv->exp_w-width)/2;
if(vf->priv->exp_y<0 || vf->priv->exp_y+height>vf->priv->exp_h) vf->priv->exp_y=(vf->priv->exp_h-height)/2;
if(test_mpi.flags & MP_IMGFLAG_YUV) {
int x_align_mask = (1 << test_mpi.chroma_x_shift) - 1;
int y_align_mask = (1 << test_mpi.chroma_y_shift) - 1;
// For 1-plane format non-aligned offsets will completely
// destroy the colours, for planar it will break the chroma
// sampling position.
if (vf->priv->exp_x & x_align_mask) {
vf->priv->exp_x &= ~x_align_mask;
mp_msg(MSGT_VFILTER, MSGL_ERR, "Specified x offset not supported "
"for YUV, reduced to %i.\n", vf->priv->exp_x);
}
if (vf->priv->exp_y & y_align_mask) {
vf->priv->exp_y &= ~y_align_mask;
mp_msg(MSGT_VFILTER, MSGL_ERR, "Specified y offset not supported "
"for YUV, reduced to %i.\n", vf->priv->exp_y);
}
}
if(!opts->screen_size_x && !opts->screen_size_y){
d_width=d_width*vf->priv->exp_w/width;
d_height=d_height*vf->priv->exp_h/height;
}
return vf_next_config(vf,vf->priv->exp_w,vf->priv->exp_h,d_width,d_height,flags,outfmt);
}
// there are 4 cases:
// codec --DR--> expand --DR--> vo
// codec --DR--> expand -copy-> vo
// codec -copy-> expand --DR--> vo
// codec -copy-> expand -copy-> vo (worst case)
static void get_image(struct vf_instance *vf, mp_image_t *mpi){
// if(mpi->type==MP_IMGTYPE_IPB) return; // not yet working
#ifdef OSD_SUPPORT
if(vf->priv->osd_enabled && (mpi->flags&MP_IMGFLAG_PRESERVE)){
// check if we have to render osd!
osd_update(vf->priv->osd, vf->priv->exp_w, vf->priv->exp_h);
if(vo_osd_check_range_update(vf->priv->exp_x,vf->priv->exp_y,
vf->priv->exp_x+mpi->w,vf->priv->exp_y+mpi->h)) return;
}
#endif
if(vf->priv->exp_w==mpi->width ||
(mpi->flags&(MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_ACCEPT_WIDTH)) ){
// try full DR !
mpi->priv=vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
mpi->type, mpi->flags,
FFMAX(vf->priv->exp_w, mpi->width +vf->priv->exp_x),
FFMAX(vf->priv->exp_h, mpi->height+vf->priv->exp_y));
if((vf->dmpi->flags & MP_IMGFLAG_DRAW_CALLBACK) &&
!(vf->dmpi->flags & MP_IMGFLAG_DIRECT)){
mp_tmsg(MSGT_VFILTER, MSGL_INFO, "Full DR not possible, trying SLICES instead!\n");
return;
}
// set up mpi as a cropped-down image of dmpi:
if(mpi->flags&MP_IMGFLAG_PLANAR){
mpi->planes[0]=vf->dmpi->planes[0]+
vf->priv->exp_y*vf->dmpi->stride[0]+vf->priv->exp_x;
mpi->planes[1]=vf->dmpi->planes[1]+
(vf->priv->exp_y>>mpi->chroma_y_shift)*vf->dmpi->stride[1]+(vf->priv->exp_x>>mpi->chroma_x_shift);
mpi->planes[2]=vf->dmpi->planes[2]+
(vf->priv->exp_y>>mpi->chroma_y_shift)*vf->dmpi->stride[2]+(vf->priv->exp_x>>mpi->chroma_x_shift);
mpi->stride[1]=vf->dmpi->stride[1];
mpi->stride[2]=vf->dmpi->stride[2];
} else {
mpi->planes[0]=vf->dmpi->planes[0]+
vf->priv->exp_y*vf->dmpi->stride[0]+
vf->priv->exp_x*(vf->dmpi->bpp/8);
}
mpi->stride[0]=vf->dmpi->stride[0];
mpi->width=vf->dmpi->width;
mpi->flags|=MP_IMGFLAG_DIRECT;
mpi->flags&=~MP_IMGFLAG_DRAW_CALLBACK;
// vf->dmpi->flags&=~MP_IMGFLAG_DRAW_CALLBACK;
}
}
static void start_slice(struct vf_instance *vf, mp_image_t *mpi){
// printf("start_slice called! flag=%d\n",mpi->flags&MP_IMGFLAG_DRAW_CALLBACK);
if(!vf->next->draw_slice){
mpi->flags&=~MP_IMGFLAG_DRAW_CALLBACK;
return;
}
// they want slices!!! allocate the buffer.
if(!mpi->priv)
mpi->priv=vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
// MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_PREFER_ALIGNED_STRIDE,
MP_IMGTYPE_TEMP, mpi->flags,
FFMAX(vf->priv->exp_w, mpi->width +vf->priv->exp_x),
FFMAX(vf->priv->exp_h, mpi->height+vf->priv->exp_y));
if(!(vf->dmpi->flags&MP_IMGFLAG_DRAW_CALLBACK))
mp_tmsg(MSGT_VFILTER, MSGL_WARN, "WARNING! Next filter doesn't support SLICES, get ready for sig11...\n"); // shouldn't happen.
vf->priv->first_slice = 1;
}
static void draw_top_blackbar_slice(struct vf_instance *vf,
unsigned char** src, int* stride, int w,int h, int x, int y){
if(vf->priv->exp_y>0 && y == 0) {
vf_next_draw_slice(vf, vf->dmpi->planes, vf->dmpi->stride,
vf->dmpi->w,vf->priv->exp_y,0,0);
}
}
static void draw_bottom_blackbar_slice(struct vf_instance *vf,
unsigned char** src, int* stride, int w,int h, int x, int y){
if(vf->priv->exp_y+vf->h<vf->dmpi->h && y+h == vf->h) {
unsigned char *src2[MP_MAX_PLANES];
src2[0] = vf->dmpi->planes[0]
+ (vf->priv->exp_y+vf->h)*vf->dmpi->stride[0];
if(vf->dmpi->flags&MP_IMGFLAG_PLANAR){
src2[1] = vf->dmpi->planes[1]
+ ((vf->priv->exp_y+vf->h)>>vf->dmpi->chroma_y_shift)*vf->dmpi->stride[1];
src2[2] = vf->dmpi->planes[2]
+ ((vf->priv->exp_y+vf->h)>>vf->dmpi->chroma_y_shift)*vf->dmpi->stride[2];
} else {
src2[1] = vf->dmpi->planes[1]; // passthrough rgb8 palette
}
vf_next_draw_slice(vf, src2, vf->dmpi->stride,
vf->dmpi->w,vf->dmpi->h-(vf->priv->exp_y+vf->h),
0,vf->priv->exp_y+vf->h);
}
}
static void draw_slice(struct vf_instance *vf,
unsigned char** src, int* stride, int w,int h, int x, int y){
// printf("draw_slice() called %d at %d\n",h,y);
if (y == 0 && y+h == vf->h) {
// special case - only one slice
draw_top_blackbar_slice(vf, src, stride, w, h, x, y);
vf_next_draw_slice(vf,src,stride,w,h,x+vf->priv->exp_x,y+vf->priv->exp_y);
draw_bottom_blackbar_slice(vf, src, stride, w, h, x, y);
return;
}
if (vf->priv->first_slice) {
draw_top_blackbar_slice(vf, src, stride, w, h, x, y);
draw_bottom_blackbar_slice(vf, src, stride, w, h, x, y);
}
vf_next_draw_slice(vf,src,stride,w,h,x+vf->priv->exp_x,y+vf->priv->exp_y);
if (!vf->priv->first_slice) {
draw_top_blackbar_slice(vf, src, stride, w, h, x, y);
draw_bottom_blackbar_slice(vf, src, stride, w, h, x, y);
}
vf->priv->first_slice = 0;
}
// w, h = width and height of the actual video frame (located at exp_x/exp_y)
static void clear_borders(struct vf_instance *vf, int w, int h)
{
// upper border (over the full width)
vf_mpi_clear(vf->dmpi, 0, 0, vf->priv->exp_w, vf->priv->exp_y);
// lower border
vf_mpi_clear(vf->dmpi, 0, vf->priv->exp_y + h, vf->priv->exp_w,
vf->priv->exp_h - (vf->priv->exp_y + h));
// left
vf_mpi_clear(vf->dmpi, 0, vf->priv->exp_y, vf->priv->exp_x, h);
// right
vf_mpi_clear(vf->dmpi, vf->priv->exp_x + w, vf->priv->exp_y,
vf->priv->exp_w - (vf->priv->exp_x + w), h);
}
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){
if (vf->priv->passthrough) {
mp_image_t *dmpi = vf_get_image(vf->next, IMGFMT_MPEGPES,
MP_IMGTYPE_EXPORT, 0, mpi->w, mpi->h);
dmpi->planes[0]=mpi->planes[0];
return vf_next_put_image(vf,dmpi, pts);
}
if(mpi->flags&MP_IMGFLAG_DIRECT || mpi->flags&MP_IMGFLAG_DRAW_CALLBACK){
vf->dmpi=mpi->priv;
if(!vf->dmpi) { mp_tmsg(MSGT_VFILTER, MSGL_WARN, "Why do we get NULL??\n"); return 0; }
mpi->priv=NULL;
clear_borders(vf,mpi->w,mpi->h);
#ifdef OSD_SUPPORT
if(vf->priv->osd_enabled) draw_osd(vf,mpi->w,mpi->h);
#endif
// we've used DR, so we're ready...
if(!(mpi->flags&MP_IMGFLAG_PLANAR))
vf->dmpi->planes[1] = mpi->planes[1]; // passthrough rgb8 palette
return vf_next_put_image(vf,vf->dmpi, pts);
}
// hope we'll get DR buffer:
vf->dmpi=vf_get_image(vf->next,mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
vf->priv->exp_w, vf->priv->exp_h);
// copy mpi->dmpi...
if(mpi->flags&MP_IMGFLAG_PLANAR){
memcpy_pic(vf->dmpi->planes[0]+
vf->priv->exp_y*vf->dmpi->stride[0]+vf->priv->exp_x,
mpi->planes[0], mpi->w, mpi->h,
vf->dmpi->stride[0],mpi->stride[0]);
memcpy_pic(vf->dmpi->planes[1]+
(vf->priv->exp_y>>mpi->chroma_y_shift)*vf->dmpi->stride[1]+(vf->priv->exp_x>>mpi->chroma_x_shift),
mpi->planes[1], (mpi->w>>mpi->chroma_x_shift), (mpi->h>>mpi->chroma_y_shift),
vf->dmpi->stride[1],mpi->stride[1]);
memcpy_pic(vf->dmpi->planes[2]+
(vf->priv->exp_y>>mpi->chroma_y_shift)*vf->dmpi->stride[2]+(vf->priv->exp_x>>mpi->chroma_x_shift),
mpi->planes[2], (mpi->w>>mpi->chroma_x_shift), (mpi->h>>mpi->chroma_y_shift),
vf->dmpi->stride[2],mpi->stride[2]);
} else {
memcpy_pic(vf->dmpi->planes[0]+
vf->priv->exp_y*vf->dmpi->stride[0]+vf->priv->exp_x*(vf->dmpi->bpp/8),
mpi->planes[0], mpi->w*(vf->dmpi->bpp/8), mpi->h,
vf->dmpi->stride[0],mpi->stride[0]);
vf->dmpi->planes[1] = mpi->planes[1]; // passthrough rgb8 palette
}
clear_borders(vf,mpi->w,mpi->h);
#ifdef OSD_SUPPORT
if(vf->priv->osd_enabled) draw_osd(vf,mpi->w,mpi->h);
#endif
return vf_next_put_image(vf,vf->dmpi, pts);
}
//===========================================================================//
static int control(struct vf_instance *vf, int request, void* data){
#ifdef OSD_SUPPORT
switch(request){
case VFCTRL_SET_OSD_OBJ:
vf->priv->osd = data;
break;
case VFCTRL_DRAW_OSD:
if(vf->priv->osd_enabled) return CONTROL_TRUE;
break;
}
#endif
return vf_next_control(vf,request,data);
}
static int query_format(struct vf_instance *vf, unsigned int fmt){
return vf_next_query_format(vf,fmt);
}
static int vf_open(vf_instance_t *vf, char *args){
vf->config=config;
vf->control=control;
vf->query_format=query_format;
vf->start_slice=start_slice;
vf->draw_slice=draw_slice;
vf->get_image=get_image;
vf->put_image=put_image;
mp_msg(MSGT_VFILTER, MSGL_INFO, "Expand: %d x %d, %d ; %d, osd: %d, aspect: %f, round: %d\n",
vf->priv->cfg_exp_w,
vf->priv->cfg_exp_h,
vf->priv->cfg_exp_x,
vf->priv->cfg_exp_y,
vf->priv->osd_enabled,
vf->priv->aspect,
vf->priv->round);
if (vf->priv->osd_enabled)
vf->default_caps = VFCAP_OSD_FILTER;
return 1;
}
#define ST_OFF(f) M_ST_OFF(struct vf_priv_s,f)
static m_option_t vf_opts_fields[] = {
{"w", ST_OFF(cfg_exp_w), CONF_TYPE_INT, 0, 0 ,0, NULL},
{"h", ST_OFF(cfg_exp_h), CONF_TYPE_INT, 0, 0 ,0, NULL},
{"x", ST_OFF(cfg_exp_x), CONF_TYPE_INT, M_OPT_MIN, -1, 0, NULL},
{"y", ST_OFF(cfg_exp_y), CONF_TYPE_INT, M_OPT_MIN, -1, 0, NULL},
{"osd", ST_OFF(osd_enabled), CONF_TYPE_FLAG, 0 , 0, 1, NULL},
{"aspect", ST_OFF(aspect), CONF_TYPE_DOUBLE, M_OPT_MIN, 0, 0, NULL},
{"round", ST_OFF(round), CONF_TYPE_INT, M_OPT_MIN, 1, 0, NULL},
{ NULL, NULL, 0, 0, 0, 0, NULL }
};
static const m_struct_t vf_opts = {
"expand",
sizeof(struct vf_priv_s),
&vf_priv_dflt,
vf_opts_fields
};
const vf_info_t vf_info_expand = {
#ifdef OSD_SUPPORT
"expanding & osd",
#else
"expanding",
#endif
"expand",
"A'rpi",
"",
vf_open,
&vf_opts
};
//===========================================================================//
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