rtp: Make sure priv_data is set before reading it

This fixes crashes with muxing H263 into RTSP.

CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit e90820d4f8)

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö
2013-01-23 21:38:41 +02:00
parent 1a28948eb3
commit 62de693a17

View File

@@ -108,7 +108,7 @@ int ff_rtp_get_payload_type(AVFormatContext *fmt,
for (i = 0; AVRtpPayloadTypes[i].pt >= 0; ++i)
if (AVRtpPayloadTypes[i].codec_id == codec->codec_id) {
if (codec->codec_id == AV_CODEC_ID_H263 && (!fmt ||
!fmt->oformat->priv_class ||
!fmt->oformat->priv_class || !fmt->priv_data ||
!av_opt_flag_is_set(fmt->priv_data, "rtpflags", "rfc2190")))
continue;
/* G722 has 8000 as nominal rate even if the sample rate is 16000,