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rtxsend: fix wrong memory layout assumption

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The code responsible for creating retransmitted buffers
assumed the stored buffer had been created with
rtp_buffer_new_allocate when copying the extension data,
which isn't necessarily the case, for example when
the rtp buffers come from a udpsrc.

https://bugzilla.gnome.org/show_bug.cgi?id=794958
This commit is contained in:
Mathieu Duponchelle 2018-04-04 01:48:44 +02:00
parent 4f8b34ab85
commit 8270cbacb4
1 changed files with 4 additions and 1 deletions
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5
gst/rtpmanager/gstrtprtxsend.c
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@ -400,7 +400,10 @@ gst_rtp_rtx_buffer_new (GstRtpRtxSend * rtx, GstBuffer * buffer)
/* copy extension if any */
if (rtp.size[1]) {
mem = gst_memory_copy (rtp.map[1].memory, 0, rtp.size[1]);
mem = gst_allocator_alloc (NULL, rtp.size[1], NULL);
gst_memory_map (mem, &map, GST_MAP_WRITE);
memcpy (map.data, rtp.data[1], rtp.size[1]);
gst_memory_unmap (mem, &map);
gst_buffer_append_memory (new_buffer, mem);
}