mirror of https://github.com/mpv-player/mpv
151 lines
2.7 KiB
C
151 lines
2.7 KiB
C
/*
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* video_out_pgm.c, pgm interface
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*
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*
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* Copyright (C) 1996, MPEG Software Simulation Group. All Rights Reserved.
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*
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* Hacked into mpeg2dec by
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*
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* Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
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*
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* 15 & 16 bpp support added by Franck Sicard <Franck.Sicard@solsoft.fr>
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*
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* Xv image suuport by Gerd Knorr <kraxel@goldbach.in-berlin.de>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "config.h"
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#include "video_out.h"
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#include "video_out_internal.h"
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static vo_info_t info =
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{
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"PGM file",
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"pgm",
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"walken",
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""
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};
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LIBVO_EXTERN (pgm)
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static int image_width;
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static int image_height;
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static char header[1024];
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static int framenum = 0;
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static uint8_t *image=NULL;
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char vo_pgm_filename[24];
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static uint32_t
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config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t fullscreen, char *title, uint32_t format)
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{
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image_height = height;
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image_width = width;
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image=malloc(width*height*3/2);
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snprintf (header, 1024, "P5\n\n%d %d\n255\n", width, height*3/2);
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return 0;
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}
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static void draw_osd(void)
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{
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}
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static void flip_page (void)
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{
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FILE * f;
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snprintf (vo_pgm_filename, 24, "%08d.pgm", framenum++);
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f = fopen (vo_pgm_filename, "wb"); if (f == NULL) return;
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fwrite (header, strlen (header), 1, f);
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fwrite (image, image_width, image_height*3/2, f);
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fclose (f);
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return;
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}
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static uint32_t draw_slice(uint8_t *srcimg[], int stride[], int w,int h,int x,int y)
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{
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int i;
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// copy Y:
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uint8_t *dst=image+image_width*y+x;
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uint8_t *src=srcimg[0];
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for(i=0;i<h;i++){
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memcpy(dst,src,w);
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src+=stride[0];
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dst+=image_width;
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}
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{
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// copy U+V:
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uint8_t *src1=srcimg[1];
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uint8_t *src2=srcimg[2];
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uint8_t *dst=image+image_width*image_height+image_width*(y/2)+(x/2);
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for(i=0;i<h/2;i++){
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memcpy(dst,src1,w/2);
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memcpy(dst+image_width/2,src2,w/2);
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src1+=stride[1];
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src2+=stride[2];
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dst+=image_width;
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}
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}
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return 0;
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}
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static uint32_t draw_frame(uint8_t * src[])
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{
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return 0;
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}
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static uint32_t
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query_format(uint32_t format)
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{
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if(format==IMGFMT_YV12) return 1;
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// switch(format){
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// case IMGFMT_YV12:
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// case IMGFMT_RGB|24:
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// case IMGFMT_BGR|24:
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// return 1;
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// }
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return 0;
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}
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static void
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uninit(void)
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{
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if(image){ free(image);image=NULL;}
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}
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static void check_events(void)
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{
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}
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static uint32_t preinit(const char *arg)
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{
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if(arg)
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{
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printf("vo_pgm: Unknown subdevice: %s\n",arg);
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return ENOSYS;
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}
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return 0;
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}
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static uint32_t control(uint32_t request, void *data, ...)
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{
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switch (request) {
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case VOCTRL_QUERY_FORMAT:
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return query_format(*((uint32_t*)data));
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}
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return VO_NOTIMPL;
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}
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