[FFmpeg-devel] [PATCH] avformat/mov: fix atom type to string conversion
Zhao Zhili
quinkblack at foxmail.com
Sat Jul 11 19:26:58 EEST 2020
The conversion was endian-dependent, and it may contain non-printable
characters.
---
libavformat/mov.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/libavformat/mov.c b/libavformat/mov.c
index da438e4e2c..ba05223cd0 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -297,7 +297,7 @@ static int mov_metadata_hmmt(MOVContext *c, AVIOContext *pb, unsigned len)
static int mov_read_udta_string(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
- char tmp_key[5];
+ char tmp_key[AV_FOURCC_MAX_STRING_SIZE] = {0};
char key2[32], language[4] = {0};
char *str = NULL;
const char *key = NULL;
@@ -444,8 +444,7 @@ retry:
str_size = atom.size;
if (c->export_all && !key) {
- snprintf(tmp_key, 5, "%.4s", (char*)&atom.type);
- key = tmp_key;
+ key = av_fourcc_make_string(tmp_key, atom.type);
}
if (!key)
@@ -7024,8 +7023,8 @@ static int mov_read_default(MOVContext *c, AVIOContext *pb, MOVAtom atom)
avio_skip(pb, left);
else if (left < 0) {
av_log(c->fc, AV_LOG_WARNING,
- "overread end of atom '%.4s' by %"PRId64" bytes\n",
- (char*)&a.type, -left);
+ "overread end of atom '%s' by %"PRId64" bytes\n",
+ av_fourcc2str(a.type), -left);
avio_seek(pb, left, SEEK_CUR);
}
}
--
2.25.1
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