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playbin2: Fix decoder-sink compatibility check for raw audio/video formats

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If the sink supports raw audio/video, we first check
if the decoder could output any raw audio/video format
and assume it is compatible with the sink then. We don't
do a complete compatibility check here if converters
are plugged between the decoder and the sink because
the converters will convert between raw formats and
even if the decoder format is not supported by the decoder
a converter will convert it.

We assume here that the converters can convert between
any raw format.

Fixes bug #665120.
This commit is contained in:
Sebastian Dröge 2011-11-29 14:15:45 +01:00
parent ab921eec11
commit e7853d3a3d
1 changed files with 31 additions and 1 deletions
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32
gst/playback/gstplaybin2.c
View file

@ -3237,6 +3237,11 @@ sink_accepts_caps (GstElement * sink, GstCaps * caps)
return TRUE;
}
static GstStaticCaps raw_audio_caps = GST_STATIC_CAPS ("audio/x-raw-int; "
"audio/x-raw-float");
static GstStaticCaps raw_video_caps = GST_STATIC_CAPS ("video/x-raw-rgb; "
"video/x-raw-yuv; " "video/x-raw-gray");
/* We are asked to select an element. See if the next element to check
* is a sink. If this is the case, we see if the sink works by setting it to
* READY. If the sink works, we return SELECT_EXPOSE to make decodebin
@ -3285,9 +3290,34 @@ autoplug_select_cb (GstElement * decodebin, GstPad * pad,
sink = group->video_sink;
if ((sinkpad = gst_element_get_static_pad (sink, "sink"))) {
GstPlayFlags flags = gst_play_bin_get_flags (playbin);
GstCaps *raw_caps =
(isaudiodec) ? gst_static_caps_get (&raw_audio_caps) :
gst_static_caps_get (&raw_video_caps);
caps = gst_pad_get_caps_reffed (sinkpad);
compatible = gst_element_factory_can_src_any_caps (factory, caps);
/* If the sink supports raw audio/video, we first check
* if the decoder could output any raw audio/video format
* and assume it is compatible with the sink then. We don't
* do a complete compatibility check here if converters
* are plugged between the decoder and the sink because
* the converters will convert between raw formats and
* even if the decoder format is not supported by the decoder
* a converter will convert it.
*
* We assume here that the converters can convert between
* any raw format.
*/
if ((isaudiodec && !(flags & GST_PLAY_FLAG_NATIVE_AUDIO)
&& gst_caps_can_intersect (caps, raw_caps)) || (!isaudiodec
&& !(flags & GST_PLAY_FLAG_NATIVE_VIDEO)
&& gst_caps_can_intersect (caps, raw_caps))) {
compatible = gst_element_factory_can_src_any_caps (factory, raw_caps)
|| gst_element_factory_can_src_any_caps (factory, caps);
} else {
compatible = gst_element_factory_can_src_any_caps (factory, caps);
}
gst_object_unref (sinkpad);
gst_caps_unref (caps);