avcodec/ansi: Fix right/bottom end checks

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6021615bbe393381f23b34a7cd0dcfd1a42687ba)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 2 insertions, 2 deletions

diff --git a/libavcodec/ansi.c b/libavcodec/ansi.c
index 655c86970c..bd28a77be9 100644
--- a/libavcodec/ansi.c
+++ b/libavcodec/ansi.c
@@ -112,7 +112,7 @@ static void hscroll(AVCodecContext *avctx)
     AnsiContext *s = avctx->priv_data;
     int i;
 
-    if (s->y < avctx->height - s->font_height) {
+    if (s->y <= avctx->height - 2*s->font_height) {
         s->y += s->font_height;
         return;
     }
@@ -165,7 +165,7 @@ static void draw_char(AVCodecContext *avctx, int c)
     ff_draw_pc_font(s->frame.data[0] + s->y * s->frame.linesize[0] + s->x,
                     s->frame.linesize[0], s->font, s->font_height, c, fg, bg);
     s->x += FONT_WIDTH;
-    if (s->x >= avctx->width) {
+    if (s->x > avctx->width - FONT_WIDTH) {
         s->x = 0;
         hscroll(avctx);
     }