ansi: fix possible use of uninitialized variables

pull/45/head
Vittorio Giovara 11 years ago
parent c0bba95c23
commit 3ea5f64fff
  1. 8
      libavcodec/ansi.c

@ -165,7 +165,10 @@ static void draw_char(AVCodecContext *avctx, int c)
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);
@ -224,7 +227,8 @@ static int execute_code(AVCodecContext * avctx, int c)
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)

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