- 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;
+ }