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From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Subject: [FFmpeg-devel] [PATCH 3/4] avformat/mxfdec: Use ff_data_to_hex() for data->hex conversion
Date: Tue, 14 Jun 2022 01:24:11 +0200
Message-ID: <DB6PR0101MB22142FB98E323BB72FE32EAC8FAB9@DB6PR0101MB2214.eurprd01.prod.exchangelabs.com> (raw)
In-Reply-To: <DB6PR0101MB221474D33354AA922B53D18B8FAB9@DB6PR0101MB2214.eurprd01.prod.exchangelabs.com>

In this case it also stops pretending that the length of
the output string is somehow checked (which is currently
being done by using snprintf that is called with the amount
of space needed instead of the amount of space actually available).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 libavformat/mxfdec.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index 392066b65a..77bde7c3fe 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -2120,22 +2120,13 @@ static int mxf_is_intra_only(MXFDescriptor *descriptor)
 
 static int mxf_umid_to_str(UID ul, UID uid, char **str)
 {
-    int i;
     char *p;
     p = *str = av_mallocz(sizeof(UID) * 4 + 2 + 1);
     if (!p)
         return AVERROR(ENOMEM);
     snprintf(p, 2 + 1, "0x");
-    p += 2;
-    for (i = 0; i < sizeof(UID); i++) {
-        snprintf(p, 2 + 1, "%.2X", ul[i]);
-        p += 2;
-
-    }
-    for (i = 0; i < sizeof(UID); i++) {
-        snprintf(p, 2 + 1, "%.2X", uid[i]);
-        p += 2;
-    }
+    ff_data_to_hex(p + 2, ul, sizeof(UID), 0);
+    ff_data_to_hex(p + 2 + 2 * sizeof(UID), uid, sizeof(UID), 0);
     return 0;
 }
 
-- 
2.34.1

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  parent reply	other threads:[~2022-06-13 23:24 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-13 23:21 [FFmpeg-devel] [PATCH 1/4] avformat/mxf: Use AVUUID for uids Andreas Rheinhardt
2022-06-13 23:24 ` [FFmpeg-devel] [PATCH 2/4] avformat/mxfdec: Don't duplicate av_uuid_unparse Andreas Rheinhardt
2022-06-13 23:24 ` Andreas Rheinhardt [this message]
2022-06-13 23:24 ` [FFmpeg-devel] [PATCH 4/4] avformat/mxfdec: Offload allocating string to av_dict_set() Andreas Rheinhardt
2022-06-16  9:49 ` [FFmpeg-devel] [PATCH 1/4] avformat/mxf: Use AVUUID for uids Andreas Rheinhardt
2022-06-16 12:03   ` Tomas Härdin

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