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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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "config.h"
#include "libavutil/avstring.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "mpbswap.h"
#include "libswscale/swscale.h"
//===========================================================================//
// commented out 16 and 15 bit output support, because the conversion
// routines are incorrect. They assume the palette to be of the same
// depth as the output, which is incorrect. --Joey
static const unsigned int bgr_list[]={
IMGFMT_BGR32,
IMGFMT_BGR24,
// IMGFMT_BGR16,
// IMGFMT_BGR15,
0
};
static const unsigned int rgb_list[]={
IMGFMT_RGB32,
IMGFMT_RGB24,
// IMGFMT_RGB16,
// IMGFMT_RGB15,
0
};
/**
* Palette is assumed to contain BGR16, see rgb32to16 to convert the palette.
*/
static void palette8torgb16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
{
long i;
for (i=0; i<num_pixels; i++)
((uint16_t *)dst)[i] = ((const uint16_t *)palette)[src[i]];
}
static void palette8tobgr16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
{
long i;
for (i=0; i<num_pixels; i++)
((uint16_t *)dst)[i] = bswap_16(((const uint16_t *)palette)[src[i]]);
}
static unsigned int gray_pal[256];
static unsigned int find_best(struct vf_instance *vf, unsigned int fmt){
unsigned int best=0;
int ret;
const unsigned int* p;
// output RGB vs. BGR must match palette format
if(fmt==IMGFMT_BGR8) p=bgr_list;
else if(fmt==IMGFMT_RGB8) p=rgb_list;
else return 0;
while(*p){
ret=vf->next->query_format(vf->next,*p);
mp_msg(MSGT_VFILTER,MSGL_DBG2,"[%s] query(%s) -> %d\n",vf->info->name,vo_format_name(*p),ret&3);
if(ret&VFCAP_CSP_SUPPORTED_BY_HW){ best=*p; break;} // no conversion -> bingo!
if(ret&VFCAP_CSP_SUPPORTED && !best) best=*p; // best with conversion
++p;
}
return best;
}
//===========================================================================//
struct vf_priv_s {
unsigned int fmt;
int pal_msg;
};
static int config(struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt){
if (!vf->priv->fmt)
vf->priv->fmt=find_best(vf,outfmt);
if(!vf->priv->fmt){
// no matching fmt, so force one...
if(outfmt==IMGFMT_RGB8) vf->priv->fmt=IMGFMT_RGB32;
else if(outfmt==IMGFMT_BGR8) vf->priv->fmt=IMGFMT_BGR32;
else return 0;
}
return vf_next_config(vf,width,height,d_width,d_height,flags,vf->priv->fmt);
}
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts, double endpts){
mp_image_t *dmpi;
uint8_t *old_palette = mpi->planes[1];
// hope we'll get DR buffer:
dmpi=vf_get_image(vf->next,vf->priv->fmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->w, mpi->h);
if (!mpi->planes[1])
{
if(!vf->priv->pal_msg){
mp_msg(MSGT_VFILTER,MSGL_V,"[%s] no palette given, assuming builtin grayscale one\n",vf->info->name);
vf->priv->pal_msg=1;
}
mpi->planes[1] = (unsigned char*)gray_pal;
}
if(mpi->w==mpi->stride[0] && dmpi->w*(dmpi->bpp>>3)==dmpi->stride[0]){
// no stride conversion needed
switch(IMGFMT_RGB_DEPTH(dmpi->imgfmt)){
case 15:
case 16:
if (IMGFMT_IS_BGR(dmpi->imgfmt))
palette8tobgr16(mpi->planes[0],dmpi->planes[0],mpi->h*mpi->w,mpi->planes[1]);
else
palette8torgb16(mpi->planes[0],dmpi->planes[0],mpi->h*mpi->w,mpi->planes[1]);
break;
case 24:
sws_convertPalette8ToPacked24(mpi->planes[0],dmpi->planes[0],mpi->h*mpi->w,mpi->planes[1]);
break;
case 32:
sws_convertPalette8ToPacked32(mpi->planes[0],dmpi->planes[0],mpi->h*mpi->w,mpi->planes[1]);
break;
}
} else {
int y;
for(y=0;y<mpi->h;y++){
unsigned char* src=mpi->planes[0]+y*mpi->stride[0];
unsigned char* dst=dmpi->planes[0]+y*dmpi->stride[0];
switch(IMGFMT_RGB_DEPTH(dmpi->imgfmt)){
case 15:
case 16:
if (IMGFMT_IS_BGR(dmpi->imgfmt))
palette8tobgr16(src,dst,mpi->w,mpi->planes[1]);
else
palette8torgb16(src,dst,mpi->w,mpi->planes[1]);
break;
case 24:
sws_convertPalette8ToPacked24(src,dst,mpi->w,mpi->planes[1]);
break;
case 32:
sws_convertPalette8ToPacked32(src,dst,mpi->w,mpi->planes[1]);
break;
}
}
}
mpi->planes[1] = old_palette;
return vf_next_put_image(vf, dmpi, pts, endpts);
}
//===========================================================================//
static int query_format(struct vf_instance *vf, unsigned int fmt){
int best=find_best(vf,fmt);
if(!best) return 0; // no match
return vf->next->query_format(vf->next,best);
}
static void uninit(vf_instance_t *vf) {
free(vf->priv);
}
static int vf_open(vf_instance_t *vf, char *args){
unsigned int i;
vf->config=config;
vf->uninit=uninit;
vf->put_image=put_image;
vf->query_format=query_format;
vf->priv=malloc(sizeof(struct vf_priv_s));
memset(vf->priv, 0, sizeof(struct vf_priv_s));
for(i=0;i<256;i++) gray_pal[i]=0x01010101*i;
if (args)
{
if (!av_strcasecmp(args,"rgb15")) vf->priv->fmt=IMGFMT_RGB15; else
if (!av_strcasecmp(args,"rgb16")) vf->priv->fmt=IMGFMT_RGB16; else
if (!av_strcasecmp(args,"rgb24")) vf->priv->fmt=IMGFMT_RGB24; else
if (!av_strcasecmp(args,"rgb32")) vf->priv->fmt=IMGFMT_RGB32; else
if (!av_strcasecmp(args,"bgr15")) vf->priv->fmt=IMGFMT_BGR15; else
if (!av_strcasecmp(args,"bgr16")) vf->priv->fmt=IMGFMT_BGR16; else
if (!av_strcasecmp(args,"bgr24")) vf->priv->fmt=IMGFMT_BGR24; else
if (!av_strcasecmp(args,"bgr32")) vf->priv->fmt=IMGFMT_BGR32; else
{
mp_msg(MSGT_VFILTER, MSGL_WARN, MSGTR_MPCODECS_UnknownFormatName, args);
return 0;
}
}
return 1;
}
const vf_info_t vf_info_palette = {
"8bpp indexed (using palette) -> BGR 15/16/24/32 conversion",
"palette",
"A'rpi & Alex",
"",
vf_open,
NULL
};
//===========================================================================//
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