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authorPeter Ross <pross@xvid.org>2012-09-01 15:15:45 +1000
committerMichael Niedermayer <michaelni@gmx.at>2012-09-01 15:22:34 +0200
commit95b9e56bebc2c92878a21fc37f5b44d7e4ba05ef (patch)
tree797c33d076705cbb9a7fe068598bf54d13ca2663 /libavcodec/ansi.c
parent368a768cbcbf9320fcd8cf6c2ecb7f6904837a95 (diff)
downloadffmpeg-95b9e56bebc2c92878a21fc37f5b44d7e4ba05ef.tar.gz
ansi: support escaped codes where last argument is zero
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/ansi.c')
-rw-r--r--libavcodec/ansi.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/libavcodec/ansi.c b/libavcodec/ansi.c
index 3f06fa4fb3..3cfc3af801 100644
--- a/libavcodec/ansi.c
+++ b/libavcodec/ansi.c
@@ -368,7 +368,7 @@ static int decode_frame(AVCodecContext *avctx,
if (buf[0] == '[') {
s->state = STATE_CODE;
s->nb_args = 0;
- s->args[0] = 0;
+ s->args[0] = -1;
} else {
s->state = STATE_NORMAL;
draw_char(avctx, 0x1B);
@@ -380,7 +380,7 @@ static int decode_frame(AVCodecContext *avctx,
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
if (s->nb_args < MAX_NB_ARGS)
- s->args[s->nb_args] = s->args[s->nb_args] * 10 + buf[0] - '0';
+ s->args[s->nb_args] = FFMAX(s->args[s->nb_args], 0) * 10 + buf[0] - '0';
break;
case ';':
s->nb_args++;
@@ -396,7 +396,7 @@ static int decode_frame(AVCodecContext *avctx,
default:
if (s->nb_args > MAX_NB_ARGS)
av_log(avctx, AV_LOG_WARNING, "args overflow (%i)\n", s->nb_args);
- if (s->nb_args < MAX_NB_ARGS && s->args[s->nb_args])
+ if (s->nb_args < MAX_NB_ARGS && s->args[s->nb_args] >= 0)
s->nb_args++;
if (execute_code(avctx, buf[0]) < 0)
return -1;