avformat/av1: return an error when no data is provided to ff_isom_write_av1c()

Signed-off-by: James Almer <jamrial@gmail.com>
7 years ago · 1e126560c2
parent 4e937b1a60
commit 1e126560c2
1 changed files with 3 additions and 0 deletions
--- a/libavformat/av1.c
+++ b/libavformat/av1.c
@ -82,6 +82,9 @@ int ff_isom_write_av1c(AVIOContext *pb, const uint8_t *buf, int size)
    int64_t obu_size;
    int start_pos, type, temporal_id, spatial_id;

+    if (size <= 0)
+        return AVERROR_INVALIDDATA;
+
    while (size > 0) {
        int ret = parse_obu_header(buf, size, &obu_size, &start_pos,
                                   &type, &temporal_id, &spatial_id);