lavf/apngdec: Return EOF for incomplete files.

Fixes ticket #7536.
6 years ago · 5ff080fdfa
parent 0f0f840716
commit 5ff080fdfa
1 changed files with 4 additions and 0 deletions
--- a/libavformat/apngdec.c
+++ b/libavformat/apngdec.c
@ -342,6 +342,10 @@ static int apng_read_packet(AVFormatContext *s, AVPacket *pkt)

    len = avio_rb32(pb);
    tag = avio_rl32(pb);
+
+    if (avio_feof(pb))
+        return AVERROR_EOF;
+
    switch (tag) {
    case MKTAG('f', 'c', 'T', 'L'):
        if (len != 26)