diff options
| -rw-r--r-- | libavcodec/ansi.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/libavcodec/ansi.c b/libavcodec/ansi.c index 3f30ae90f5..95b5be4678 100644 --- a/libavcodec/ansi.c +++ b/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) |