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