mirror of
https://github.com/mpv-player/mpv
synced 2024-12-23 15:22:09 +00:00
b95c80ca86
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@25249 b3059339-0415-0410-9bf9-f77b7e298cf2
114 lines
2.9 KiB
C
114 lines
2.9 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "img_format.h"
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#include "mp_image.h"
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#include "vf.h"
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static void mirror(unsigned char* dst,unsigned char* src,int dststride,int srcstride,int w,int h,int bpp,unsigned int fmt){
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int y;
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for(y=0;y<h;y++){
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int x;
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switch(bpp){
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case 1:
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for(x=0;x<w;x++) dst[x]=src[w-x-1];
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break;
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case 2:
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switch(fmt){
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case IMGFMT_UYVY: {
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// packed YUV is tricky. U,V are 32bpp while Y is 16bpp:
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int w2=w>>1;
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for(x=0;x<w2;x++){
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// TODO: optimize this...
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dst[x*4+0]=src[0+(w2-x-1)*4];
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dst[x*4+1]=src[3+(w2-x-1)*4];
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dst[x*4+2]=src[2+(w2-x-1)*4];
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dst[x*4+3]=src[1+(w2-x-1)*4];
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}
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break; }
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case IMGFMT_YUY2:
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case IMGFMT_YVYU: {
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// packed YUV is tricky. U,V are 32bpp while Y is 16bpp:
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int w2=w>>1;
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for(x=0;x<w2;x++){
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// TODO: optimize this...
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dst[x*4+0]=src[2+(w2-x-1)*4];
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dst[x*4+1]=src[1+(w2-x-1)*4];
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dst[x*4+2]=src[0+(w2-x-1)*4];
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dst[x*4+3]=src[3+(w2-x-1)*4];
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}
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break; }
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default:
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for(x=0;x<w;x++) *((short*)(dst+x*2))=*((short*)(src+(w-x-1)*2));
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}
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break;
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case 3:
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for(x=0;x<w;x++){
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dst[x*3+0]=src[0+(w-x-1)*3];
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dst[x*3+1]=src[1+(w-x-1)*3];
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dst[x*3+2]=src[2+(w-x-1)*3];
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}
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break;
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case 4:
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for(x=0;x<w;x++) *((int*)(dst+x*4))=*((int*)(src+(w-x-1)*4));
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}
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src+=srcstride;
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dst+=dststride;
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}
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}
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//===========================================================================//
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static int put_image(struct vf_instance_s* vf, mp_image_t *mpi, double pts){
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mp_image_t *dmpi;
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// hope we'll get DR buffer:
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dmpi=vf_get_image(vf->next,mpi->imgfmt,
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MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
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mpi->w, mpi->h);
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if(mpi->flags&MP_IMGFLAG_PLANAR){
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mirror(dmpi->planes[0],mpi->planes[0],
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dmpi->stride[0],mpi->stride[0],
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dmpi->w,dmpi->h,1,mpi->imgfmt);
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mirror(dmpi->planes[1],mpi->planes[1],
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dmpi->stride[1],mpi->stride[1],
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dmpi->w>>mpi->chroma_x_shift,dmpi->h>>mpi->chroma_y_shift,1,mpi->imgfmt);
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mirror(dmpi->planes[2],mpi->planes[2],
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dmpi->stride[2],mpi->stride[2],
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dmpi->w>>mpi->chroma_x_shift,dmpi->h>>mpi->chroma_y_shift,1,mpi->imgfmt);
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} else {
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mirror(dmpi->planes[0],mpi->planes[0],
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dmpi->stride[0],mpi->stride[0],
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dmpi->w,dmpi->h,dmpi->bpp>>3,mpi->imgfmt);
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dmpi->planes[1]=mpi->planes[1]; // passthrough rgb8 palette
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}
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return vf_next_put_image(vf,dmpi, pts);
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}
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//===========================================================================//
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static int open(vf_instance_t *vf, char* args){
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//vf->config=config;
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vf->put_image=put_image;
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return 1;
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}
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const vf_info_t vf_info_mirror = {
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"horizontal mirror",
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"mirror",
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"Eyck",
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"",
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open,
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NULL
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};
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//===========================================================================//
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