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authorAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2021-09-22 20:36:21 +0200
committerAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2021-09-27 07:08:59 +0200
commit1cf3c59b58f4380d5ce166a67331777891d06eef (patch)
tree9b47daad475b99a2684218437e75317f36ad3ecb /libavformat/movenc.c
parent63a5e83de8189372fcf8c543a01f1a0c28860ccb (diff)
avformat/movenc: Limit ism_lookahead to a sane value
There can only be a maximum of 255 entries in a tfrf tag, so using more makes no sense; moreover, several size computations can overflow in this case. Fix this by limiting it to 255. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libavformat/movenc.c')
-rw-r--r--libavformat/movenc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index cfb5a5c725..53c8ffadd5 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -94,7 +94,7 @@ static const AVOption options[] = {
{ "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "min_frag_duration", "Minimum fragment duration", offsetof(MOVMuxContext, min_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
- { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
+ { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 255, AV_OPT_FLAG_ENCODING_PARAM},
{ "video_track_timescale", "set timescale of all video tracks", offsetof(MOVMuxContext, video_track_timescale), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
{ "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},