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v4l2src: check for valid size on raw video buffers

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Discard buffers that doesn't contain enough data when dealing
with raw video inputs.

https://bugzilla.gnome.org/show_bug.cgi?id=767086
This commit is contained in:
Josep Torra 2016-05-31 21:34:04 +02:00 committed by Josep Torra
parent 4498e57c10
commit b7866315a6
1 changed files with 10 additions and 1 deletions
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11
sys/v4l2/gstv4l2bufferpool.c
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@ -1725,14 +1725,23 @@ gst_v4l2_buffer_pool_process (GstV4l2BufferPool * pool, GstBuffer ** buf)
if ((*buf)->pool == bpool) {
guint num_queued;
gsize size = gst_buffer_get_size (*buf);
if (gst_buffer_get_size (*buf) == 0) {
if (size == 0) {
if (GST_BUFFER_FLAG_IS_SET (*buf, GST_BUFFER_FLAG_CORRUPTED))
goto buffer_corrupted;
else
goto eos;
}
/* verify that buffer contains a full frame for raw video */
if (GST_VIDEO_INFO_FORMAT (&obj->info) != GST_VIDEO_FORMAT_ENCODED
&& size < GST_VIDEO_INFO_SIZE (&obj->info)) {
GST_WARNING_OBJECT (pool, "Invalid buffer size, this is likely "
"due to a bug in your driver, dropping");
goto buffer_corrupted;
}
num_queued = g_atomic_int_get (&pool->num_queued);
GST_TRACE_OBJECT (pool, "Only %i buffer left in the capture queue.",
num_queued);