[Bug 753001] New: NULL GstBuffer pointer being passed within gst_rtp_buffer_set_extension_data
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Wed Jul 29 01:18:46 PDT 2015
https://bugzilla.gnome.org/show_bug.cgi?id=753001
Bug ID: 753001
Summary: NULL GstBuffer pointer being passed within
gst_rtp_buffer_set_extension_data
Classification: Platform
Product: GStreamer
Version: 1.x
OS: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gst-plugins-base
Assignee: gstreamer-bugs at lists.freedesktop.org
Reporter: brianfpeters at gmail.com
QA Contact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
In the function ensure_buffers (called by gst_rtp_buffer_set_extension_data) in
gstrtpbuffer.c in the 'if(changed)' scope at the end of the function
gst_rtp_buffer_unmap is called. This function sets the buffer pointer in its
argument to NULL. The next two lines in ensure_buffers use this pointer in
calls to gst_buffer_remove_memory_range and gst_rtp_buffer_map.
This was discovered in version 1.2.4 working on SLES12 but appears to be
present in further versions as well.
A possible fix is the following (lines numbers as per
gst-plugins-base-1.2.4/gst-libs/gst/gstrtpbuffer.c):
774a775
> GstBuffer *pBuffer = rtp->buffer;
776,777c777,778
< gst_buffer_remove_memory_range (rtp->buffer, pos, -1);
< gst_rtp_buffer_map (rtp->buffer, GST_MAP_READWRITE, rtp);
---
> gst_buffer_remove_memory_range (pBuffer, pos, -1);
> gst_rtp_buffer_map (pBuffer, GST_MAP_READWRITE, rtp);
--
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