diff options
Diffstat (limited to 'gst-libs/gst/rtp/gstrtpbuffer.c')
| -rw-r--r-- | gst-libs/gst/rtp/gstrtpbuffer.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/gst-libs/gst/rtp/gstrtpbuffer.c b/gst-libs/gst/rtp/gstrtpbuffer.c index ebc0824..7c32d35 100644 --- a/gst-libs/gst/rtp/gstrtpbuffer.c +++ b/gst-libs/gst/rtp/gstrtpbuffer.c @@ -316,7 +316,7 @@ gst_rtp_buffer_map (GstBuffer * buffer, GstMapFlags flags, GstRTPBuffer * rtp) guint8 padding; guint8 csrc_count; guint header_len; - guint8 version; + guint8 version, pt; guint8 *data; guint size; gsize bufsize, skip; @@ -346,6 +346,13 @@ gst_rtp_buffer_map (GstBuffer * buffer, GstMapFlags flags, GstRTPBuffer * rtp) if (G_UNLIKELY (version != (GST_RTP_VERSION << 6))) goto wrong_version; + /* check reserved PT and marker bit, this is to check for RTCP + * packets. We do a relaxed check, you can still use 72-76 as long + * as the marker bit is cleared. */ + pt = data[1]; + if (G_UNLIKELY (pt >= 200 && pt <= 204)) + goto reserved_pt; + /* calc header length with csrc */ csrc_count = (data[0] & 0x0f); header_len += csrc_count * sizeof (guint32); @@ -442,6 +449,11 @@ wrong_version: GST_DEBUG ("version check failed (%d != %d)", version, GST_RTP_VERSION); goto dump_packet; } +reserved_pt: + { + GST_DEBUG ("reserved PT %d found", pt); + goto dump_packet; + } wrong_padding: { GST_DEBUG ("padding check failed (%" G_GSIZE_FORMAT " - %d < %d)", bufsize, |