png video out renderer initial release

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@528 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 295 insertions, 0 deletions

diff --git a/libvo/vo_png.c b/libvo/vo_png.c
new file mode 100644
index 0000000000..e60ebd19ee
--- /dev/null
+++ b/libvo/vo_png.c
@@ -0,0 +1,295 @@
+#define DISP
+
+/* 
+ * 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 <png.h>
+//#include "/usr/include/png.h"
+
+
+#include "config.h"
+#include "video_out.h"
+#include "video_out_internal.h"
+
+#include "yuv2rgb.h"
+
+LIBVO_EXTERN (png)
+
+static vo_info_t vo_info = 
+{
+	"PNG file",
+	"png",
+	"Felix Buenemann <atmosfear@users.sourceforge.net>",
+	""
+};
+
+#define RGB 0
+#define BGR 1
+
+extern int verbose;
+int z_compression = Z_NO_COMPRESSION;
+static int image_width;
+static int image_height;
+static int image_format;
+static uint8_t *image_data=NULL;
+//static char *image_data;
+
+static int bpp = 24;
+static int cspace = RGB;
+static int framenum = 0;
+
+struct pngdata {
+	FILE * fp;
+	png_structp png_ptr;
+	png_infop info_ptr;
+	enum {OK,ERROR} status;  
+};
+	
+static uint32_t
+init(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_format = format;
+    
+    //printf("Verbose level is %i\n", verbose);
+    
+    switch(format) {
+	case IMGFMT_BGR24:
+	     bpp = 24;
+	     cspace = BGR;
+	break;     
+	case IMGFMT_RGB24:
+	     bpp = 24;
+	     cspace = RGB;
+	break;     
+	case IMGFMT_YV12:
+	     bpp = 24;
+	     cspace = RGB;
+	     yuv2rgb_init(bpp,MODE_BGR);
+	     image_data = malloc(image_width*image_height*3);
+	break;
+	default:
+	     return 1;     
+    }		
+    
+    if((z_compression < 0) || (z_compression < 9)) {
+	    if(z_compression == 0) {
+		    printf("PNG Warning: compression level set to 0, compression disabled!\n");
+		    printf("PNG Info: Use the -z <n> switch to set compression level from 0 to 9.\n");
+		    printf("PNG Info: (0 = no compression, 1 = fastest, lowest - 9 best, slowest compression)\n");
+	    }	    
+    }
+    else {	    	    
+	    printf("PNG Warning: compression level out of range setting to 1!\n");
+	    printf("PNG Info: Use the -z <n> switch to set compression level from 0 to 9.\n");
+	    printf("PNG Info: (0 = no compression, 1 = fastest, lowest - 9 best, slowest compression)\n");
+	    z_compression = Z_BEST_SPEED;
+    }
+    
+    if(verbose)	printf("PNG Compression level %i\n", z_compression);   
+	  	
+    return 0;
+}
+
+static const vo_info_t*
+get_info(void)
+{
+    return &vo_info;
+}
+
+
+struct pngdata create_png (char * fname)
+{
+    struct pngdata png;
+    
+    /*png_structp png_ptr = png_create_write_struct
+       (PNG_LIBPNG_VER_STRING, (png_voidp)user_error_ptr,
+        user_error_fn, user_warning_fn);*/
+    //png_byte *row_pointers[image_height];
+    png.png_ptr = png_create_write_struct
+       (PNG_LIBPNG_VER_STRING, NULL,
+        NULL, NULL);
+    png.info_ptr = png_create_info_struct(png.png_ptr);
+   
+    if (!png.png_ptr) {
+       if(verbose > 1) printf("PNG Failed to init png pointer\n");
+       png.status = ERROR;
+       return png;
+    }   
+    
+    if (!png.info_ptr) {
+       if(verbose > 1) printf("PNG Failed to init png infopointer\n");
+       png_destroy_write_struct(&png.png_ptr,
+         (png_infopp)NULL);
+       png.status = ERROR;
+       return png;
+    }
+    
+    if (setjmp(png.png_ptr->jmpbuf)) {
+	if(verbose > 1) printf("PNG Internal error!\n");    
+        png_destroy_write_struct(&png.png_ptr, &png.info_ptr);
+        fclose(png.fp);
+        png.status = ERROR;
+        return png;
+    }
+    
+    png.fp = fopen (fname, "wb");
+    if (png.fp == NULL) {
+	printf("\nPNG Error opening %s for writing!\n");
+       	png.status = ERROR;
+       	return png;
+    }	    
+    
+    if(verbose > 1) printf("PNG Init IO\n");
+    png_init_io(png.png_ptr, png.fp);
+
+    /* set the zlib compression level */
+    png_set_compression_level(png.png_ptr, z_compression);
+		    
+    
+    /*png_set_IHDR(png_ptr, info_ptr, width, height,
+       bit_depth, color_type, interlace_type,
+       compression_type, filter_type)*/
+    png_set_IHDR(png.png_ptr, png.info_ptr, image_width, image_height,
+       8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE,
+       PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
+    
+    if(verbose > 1) printf("PNG Write Info\n");
+    png_write_info(png.png_ptr, png.info_ptr);
+    
+    if(cspace) {
+    	if(verbose > 1) printf("PNG Set BGR Conversion\n");
+    	png_set_bgr(png.png_ptr);
+    }	
+
+    png.status = OK;
+    return png;
+    
+}    
+       
+static uint8_t destroy_png(struct pngdata png) {
+	    
+    if(verbose > 1) printf("PNG Write End\n");
+    png_write_end(png.png_ptr, png.info_ptr);
+
+    if(verbose > 1) printf("PNG Destroy Write Struct\n");
+    png_destroy_write_struct(&png.png_ptr, &png.info_ptr);
+    
+    fclose (png.fp);
+
+    return 0;
+}
+
+static uint32_t draw_frame(uint8_t * src[])
+{
+    char buf[100];
+    int k, bppmul = bpp/8;
+    struct pngdata png;
+    png_byte *row_pointers[image_height];
+    
+    sprintf (buf, "%08d.png", ++framenum);
+    //printf("%s\n", buf);
+
+    png = create_png(buf);
+
+    if(png.status){
+	    printf("PNG Error in create_png\n");
+	    return 1;
+    }	     
+
+    if(verbose > 1) printf("PNG Creating Row Pointers\n");
+    for ( k = 0; k < image_height; k++ ) row_pointers[k] = &src[0][image_width*k*bppmul];
+    
+    //png_write_flush(png.png_ptr);
+    //png_set_flush(png.png_ptr, nrows);
+
+    if(verbose > 1) printf("PNG Writing Image Data\n");
+    png_write_image(png.png_ptr, row_pointers);
+
+    return destroy_png(png);
+
+}
+
+static void flip_page (void)
+{
+    char buf[100];
+    int k, bppmul = bpp/8;
+    struct pngdata png;
+    png_byte *row_pointers[image_height];
+  
+  if(image_format == IMGFMT_YV12) {
+
+    sprintf (buf, "%08d.png", ++framenum);
+    //printf("%s\n", buf);
+
+    png = create_png(buf);
+
+    if(png.status){
+	    printf("PNG Error in create_png\n");
+    }	     
+
+    if(verbose > 1) printf("PNG Creating Row Pointers\n");
+    for ( k = 0; k < image_height; k++ ) row_pointers[k] = &image_data[image_width*k*bppmul];
+    
+    //png_write_flush(png.png_ptr);
+    //png_set_flush(png.png_ptr, nrows);
+
+    if(verbose > 1) printf("PNG Writing Image Data\n");
+    png_write_image(png.png_ptr, row_pointers);
+
+    destroy_png(png);
+  }
+}
+
+static uint32_t draw_slice( uint8_t *src[],int stride[],int w,int h,int x,int y )
+{
+  uint8_t *dst;
+  
+  dst = image_data + (image_width * y + x) * (bpp/8);
+  yuv2rgb(dst,src[0],src[1],src[2],w,h,image_width*(bpp/8),stride[0],stride[1]);
+  
+  return 0;
+}
+
+static uint32_t
+query_format(uint32_t format)
+{
+    switch(format){
+    case IMGFMT_YV12:
+    case IMGFMT_RGB|24:
+    case IMGFMT_BGR|24:
+        return 1;
+    }
+    return 0;
+}
+
+static void
+uninit(void)
+{
+	if(image_data){ free(image_data);image_data=NULL;}
+}
+
+
+static void check_events(void)
+{
+}
+
+
+