On 24-09-2019 10:01 PM, Andreas Rheinhardt wrote:
There is currently an ordinary check for this (which would lead to a
memleak), but given that no demuxer should ever return a packet with an
invalid stream_index it is more appropriate for this to be an assert.
FATE passes with this change.
Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@gmail.com>
---
libavformat/utils.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 3983a3f4ce..d8ef5fe54c 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -884,10 +884,8 @@ int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
continue;
}
- if (pkt->stream_index >= (unsigned)s->nb_streams) {
- av_log(s, AV_LOG_ERROR, "Invalid stream index %d\n",
pkt->stream_index);
- continue;
- }
+ av_assert0(pkt->stream_index < (unsigned)s->nb_streams &&
+ "Invalid stream index.\n");
The mpegts demuxer can send packets from new streams which appear
mid-way. See the check in ffmpeg.c process_input() which discards these
packets.
Whereas the patch will lead to an abort in fftools and other user apps
transcoding a live feed.
Gyan
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