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vaapidecode: return pad's template caps if no display

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A caps query can occur before the element has a display. In that case, the
element can return its pad's template. But when the element already has a
display, and the caps probe fails, the element shall return an empty caps, so
the auto-plug could try with another decoder.

If the element has a display and the caps probe works, then the computed caps
should be returned.

Signed-off-by: Víctor Manuel Jáquez Leal <victorx.jaquez@intel.com>

https://bugzilla.gnome.org/show_bug.cgi?id=757598
This commit is contained in:
Víctor Manuel Jáquez Leal 2015-10-28 13:01:04 +01:00
parent d69f747d09
commit 75e7a0a36c
1 changed files with 10 additions and 11 deletions
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21
gst/vaapi/gstvaapidecode.c
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@ -954,12 +954,6 @@ gst_vaapidecode_ensure_allowed_caps (GstVaapiDecode * decode)
GArray *profiles;
guint i;
if (decode->allowed_caps)
return TRUE;
if (!GST_VAAPI_PLUGIN_BASE_DISPLAY (decode))
goto error_no_display;
profiles =
gst_vaapi_display_get_decode_profiles (GST_VAAPI_PLUGIN_BASE_DISPLAY
(decode));
@ -999,11 +993,6 @@ gst_vaapidecode_ensure_allowed_caps (GstVaapiDecode * decode)
return TRUE;
/* ERRORS */
error_no_display:
{
GST_INFO_OBJECT (decode, "no VA display shared yet");
return FALSE;
}
error_no_profiles:
{
GST_ERROR ("failed to retrieve VA decode profiles");
@ -1022,9 +1011,19 @@ gst_vaapidecode_get_caps (GstPad * pad)
{
GstVaapiDecode *const decode = GST_VAAPIDECODE (GST_OBJECT_PARENT (pad));
if (decode->allowed_caps)
goto bail;
/* if we haven't a display yet, return our pad's template caps */
if (!GST_VAAPI_PLUGIN_BASE_DISPLAY (decode))
return gst_pad_get_pad_template_caps (pad);
/* if the allowed caps calculation fails, return an empty caps, so
* the auto-plug can try other decoder */
if (!gst_vaapidecode_ensure_allowed_caps (decode))
return gst_caps_new_empty ();
bail:
return gst_caps_ref (decode->allowed_caps);
}