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waylandsink: do not render twice the same buffer

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Do not try to render a buffer that is already being rendered.
This happens typically during the initial rendering stage as the first
buffer is rendered twice: first by preroll(), then by render().
This commit avoids this assertion failure:
  CRITICAL: gst_wayland_compositor_acquire_buffer: assertion
  'meta->used_by_compositor == FALSE' failed

https://bugzilla.gnome.org/show_bug.cgi?id=738069

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
This commit is contained in:
Benjamin Gaignard 2014-10-07 10:37:33 +02:00 committed by George Kiagiadakis
parent 4395c02b96
commit 23bb5f5319
1 changed files with 6 additions and 0 deletions
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6
ext/wayland/gstwaylandsink.c
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@ -667,6 +667,12 @@ gst_wayland_sink_render (GstBaseSink * bsink, GstBuffer * buffer)
}
}
/* drop double rendering */
if (G_UNLIKELY (to_render == sink->last_buffer)) {
GST_LOG_OBJECT (sink, "Buffer already being rendered");
goto done;
}
gst_buffer_replace (&sink->last_buffer, to_render);
render_last_buffer (sink);