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authorMichael Niedermayer <[email protected]>2018-07-28 15:03:50 +0200
committerMichael Niedermayer <[email protected]>2018-10-07 21:34:00 +0200
commit386975d7a4aa4f41451f5895a689aedbf83c4ecd (patch)
tree6366b69aec23bb4339c6fcbbdb76a2f2cba5a610
parent8591d16ce5f8169efc11570916c3404d3709043d (diff)
avformat/flvenc: Check audio packet size
Fixes: Assertion failure Fixes: assert_flvenc.c:941_1.swf Found-by: #CHEN HONGXU# <[email protected]> Signed-off-by: Michael Niedermayer <[email protected]> (cherry picked from commit 6b67d7f05918f7a1ee8fc6ff21355d7e8736aa10) Signed-off-by: Michael Niedermayer <[email protected]>
-rw-r--r--libavformat/flvenc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/libavformat/flvenc.c b/libavformat/flvenc.c
index e8af48cb64..1f503679e2 100644
--- a/libavformat/flvenc.c
+++ b/libavformat/flvenc.c
@@ -879,6 +879,11 @@ static int flv_write_packet(AVFormatContext *s, AVPacket *pkt)
int flags = -1, flags_size, ret;
int64_t cur_offset = avio_tell(pb);
+ if (par->codec_type == AVMEDIA_TYPE_AUDIO && !pkt->size) {
+ av_log(s, AV_LOG_WARNING, "Empty audio Packet\n");
+ return AVERROR(EINVAL);
+ }
+
if (par->codec_id == AV_CODEC_ID_VP6F || par->codec_id == AV_CODEC_ID_VP6A ||
par->codec_id == AV_CODEC_ID_VP6 || par->codec_id == AV_CODEC_ID_AAC)
flags_size = 2;