[FFmpeg-cvslog] avcodec/xpmdec: fix small artifacts

[Paul B Mahol]

ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Mon Dec 10 21:31:18 2018 +0100| [00502370f6bef3f40de2685a4d2ee2c1ec960da8] | committer: Paul B Mahol

avcodec/xpmdec: fix small artifacts

The max size of uint8_t subset is 223 not 220.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=00502370f6bef3f40de2685a4d2ee2c1ec960da8
---

 libavcodec/xpmdec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/xpmdec.c b/libavcodec/xpmdec.c
index 1aa40c0655..acde9e768d 100644
--- a/libavcodec/xpmdec.c
+++ b/libavcodec/xpmdec.c
@@ -293,7 +293,7 @@ static int ascii2index(const uint8_t *cpixel, int cpp)
         if (*p < ' ' || *p > 0xfe)
             return AVERROR_INVALIDDATA;
         n += (*p++ - ' ') * m;
-        m *= 220;
+        m *= 223;
     }
     return n;
 }
@@ -346,7 +346,7 @@ static int xpm_decode_frame(AVCodecContext *avctx, void *data,
 
     size = 1;
     for (i = 0; i < cpp; i++)
-        size *= 220;
+        size *= 223;
 
     if (ncolors <= 0 || ncolors > size) {
         av_log(avctx, AV_LOG_ERROR, "invalid number of colors: %d\n", ncolors);