[Bug 648312] New: [v4l2sink] Unconditionally accepts video/mpegts
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Wed Apr 20 08:04:48 PDT 2011
https://bugzilla.gnome.org/show_bug.cgi?id=648312
GStreamer | gst-plugins-good | git
Summary: [v4l2sink] Unconditionally accepts video/mpegts
Classification: Platform
Product: GStreamer
Version: git
OS/Version: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gst-plugins-good
AssignedTo: gstreamer-bugs at lists.freedesktop.org
ReportedBy: bilboed at gmail.com
QAContact: gstreamer-bugs at lists.freedesktop.org
GNOME version: ---
When v4l2sink is raised to a non-null rank (because system has a v4l2 output
device) and when playbin2 plays back a mpeg-ts file, it ends up auto-plugging
the mpeg-ts stream directly to v4l2sink.
This is because v4l2sink unconditionally accepts video/mpegts and doesn't check
whether the hardware can actually support it.
The culprit seems to be in gstv4l2object:
@@ -1842,6 +1863,9 @@ gst_v4l2_object_set_format (GstV4l2Object * v4l2object,
guint32 pixelformat,
memset (&format, 0x00, sizeof (struct v4l2_format));
format.type = v4l2object->type;
+ if (pixelformat == GST_MAKE_FOURCC ('M', 'P', 'E', 'G'))
+ return TRUE;
+
if (v4l2_ioctl (fd, VIDIOC_G_FMT, &format) < 0)
goto get_fmt_failed;
--
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