X-Git-Url: https://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fcinelerra%2Ffilepng.C;h=889ee240b38a561170d6fcac566ebf30ba632e78;hb=7be8c7f90868895abddcbafda66ede5632752a70;hp=6ccbf28819f51343957018d075574d54f45cbbbb;hpb=49b1cbd236ac6c593d4fc85ed3f4a6344cbb9279;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.1/cinelerra/filepng.C b/cinelerra-5.1/cinelerra/filepng.C
index 6ccbf288..889ee240 100644
--- a/cinelerra-5.1/cinelerra/filepng.C
+++ b/cinelerra-5.1/cinelerra/filepng.C
@@ -254,27 +254,27 @@ int FilePNG::write_frame(VFrame *frame, VFrame *data, FrameWriterUnit *unit)
 
 //printf("FilePNG::write_frame 1\n");
 	png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, 0, 0, 0);
-	if( png_ptr && !setjmp(png_jmpbuf(png_ptr)) ) {
-		info_ptr = png_create_info_struct(png_ptr);
-		png_set_write_fn(png_ptr, data,
-			(png_rw_ptr)write_function, (png_flush_ptr)flush_function);
-		png_set_compression_level(png_ptr, 5);
-
-		png_set_IHDR(png_ptr, info_ptr, asset->width, asset->height, 8,
-			asset->png_use_alpha ?  PNG_COLOR_TYPE_RGB_ALPHA : PNG_COLOR_TYPE_RGB,
-			PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
-		png_write_info(png_ptr, info_ptr);
-		png_write_image(png_ptr, output_frame->get_rows());
-		png_write_end(png_ptr, info_ptr);
+	if( png_ptr ) {
+		if( !setjmp(png_jmpbuf(png_ptr)) ) {
+			info_ptr = png_create_info_struct(png_ptr);
+			png_set_write_fn(png_ptr, data,
+				(png_rw_ptr)write_function, (png_flush_ptr)flush_function);
+			png_set_compression_level(png_ptr, 5);
+
+			png_set_IHDR(png_ptr, info_ptr, asset->width, asset->height, 8,
+				asset->png_use_alpha ?  PNG_COLOR_TYPE_RGB_ALPHA : PNG_COLOR_TYPE_RGB,
+				PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
+			png_write_info(png_ptr, info_ptr);
+			png_write_image(png_ptr, output_frame->get_rows());
+			png_write_end(png_ptr, info_ptr);
+			result = 0;
+		}
 		png_destroy_write_struct(&png_ptr, &info_ptr);
-		result = 0;
 	}
-	else {
+	if( result ) {
 		char error[256];  png_error(png_ptr, error);
 		fprintf(stderr, "FilePNG::write_frame failed: %s\n", error);
 	}
-
-	png_destroy_write_struct(&png_ptr, &info_ptr);
 //printf("FilePNG::write_frame 3 %d\n", data->get_compressed_size());
 	return result;
 }