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textrender: Correctly negotiate with downstream instead of just using random caps

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Fixes bug #638897.
This commit is contained in:
Jindrich Makovicka 2011-05-26 10:48:05 +02:00 committed by Sebastian Dröge
parent c186d400e5
commit 2ba4a56d74
1 changed files with 14 additions and 9 deletions
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23
ext/pango/gsttextrender.c
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@ -467,7 +467,7 @@ gst_text_render_chain (GstPad * pad, GstBuffer * inbuf)
GstTextRender *render;
GstFlowReturn ret;
GstBuffer *outbuf;
GstCaps *caps = NULL;
GstCaps *caps = NULL, *padcaps, *peercaps;
guint8 *data = GST_BUFFER_DATA (inbuf);
guint size = GST_BUFFER_SIZE (inbuf);
gint n;
@ -489,16 +489,21 @@ gst_text_render_chain (GstPad * pad, GstBuffer * inbuf)
gst_text_render_check_argb (render);
if (!render->use_ARGB) {
caps =
gst_video_format_new_caps (GST_VIDEO_FORMAT_AYUV, render->width,
render->height, 1, 1, 1, 1);
} else {
caps =
gst_video_format_new_caps (GST_VIDEO_FORMAT_ARGB, render->width,
render->height, 1, 1, 1, 1);
peercaps = gst_pad_peer_get_caps (render->srcpad);
padcaps = gst_pad_get_caps (render->srcpad);
caps = gst_caps_intersect (padcaps, peercaps);
gst_caps_unref (padcaps);
gst_caps_unref (peercaps);
if (!caps || gst_caps_is_empty (caps)) {
GST_ELEMENT_ERROR (render, CORE, NEGOTIATION, (NULL), (NULL));
ret = GST_FLOW_ERROR;
goto done;
}
gst_caps_truncate (caps);
gst_pad_fixate_caps (render->srcpad, caps);
if (!gst_pad_set_caps (render->srcpad, caps)) {
GST_ELEMENT_ERROR (render, CORE, NEGOTIATION, (NULL), (NULL));
ret = GST_FLOW_ERROR;