static int execute_code(AVCodecContext * avctx, int c)
{
AnsiContext *s = avctx->priv_data;
- int ret, i, width, height;
+ int ret, i;
+ int width = 0;
+ int height = 0;
+
switch(c) {
case 'A': //Cursor Up
s->y = FFMAX(s->y - (s->nb_args > 0 ? s->args[0]*s->font_height : s->font_height), 0);
default:
avpriv_request_sample(avctx, "Unsupported screen mode");
}
- if (width != avctx->width || height != avctx->height) {
+ if (width != 0 && height != 0 &&
+ (width != avctx->width || height != avctx->height)) {
av_frame_unref(s->frame);
ret = ff_set_dimensions(avctx, width, height);
if (ret < 0)