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applemedia: vtdec: fix GL negotiation

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Alessandro Decina 2015-04-14 20:33:25 +10:00
parent 3e0391a1f1
commit a10232f7da
1 changed files with 29 additions and 18 deletions
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39
sys/applemedia/vtdec.c
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@ -198,37 +198,48 @@ static gboolean
gst_vtdec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query) gst_vtdec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{ {
gboolean ret; gboolean ret;
GstCaps *caps;
GstCapsFeatures *features;
GstVtdec *vtdec = GST_VTDEC (decoder); GstVtdec *vtdec = GST_VTDEC (decoder);
ret = ret =
GST_VIDEO_DECODER_CLASS (gst_vtdec_parent_class)->decide_allocation GST_VIDEO_DECODER_CLASS (gst_vtdec_parent_class)->decide_allocation
(decoder, query); (decoder, query);
if (ret) { if (!ret)
GstCaps *caps; goto out;
GstCapsFeatures *features;
guint idx;
gst_query_parse_allocation (query, &caps, NULL); gst_query_parse_allocation (query, &caps, NULL);
if (caps) { if (caps) {
GstGLContext *gl_context = NULL;
features = gst_caps_get_features (caps, 0); features = gst_caps_get_features (caps, 0);
if (gst_caps_features_contains (features, if (gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY) GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) {
&& gst_query_find_allocation_meta (query, GstContext *context = NULL;
GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, &idx)) { GstQuery *query = gst_query_new_context ("gst.gl.local_context");
GstGLContext *context; if (gst_pad_peer_query (GST_VIDEO_DECODER_SRC_PAD (decoder), query)) {
const GstStructure *upload_meta_params;
gst_query_parse_nth_allocation_meta (query, idx, &upload_meta_params); gst_query_parse_context (query, &context);
if (gst_structure_get (upload_meta_params, "gst.gl.GstGLContext", if (context) {
GST_GL_TYPE_CONTEXT, &context, NULL) && context) { const GstStructure *s = gst_context_get_structure (context);
vtdec->texture_cache = gst_core_video_texture_cache_new (context); gst_structure_get (s, "context", GST_GL_TYPE_CONTEXT, &gl_context,
gst_object_unref (context); NULL);
} }
} }
gst_query_unref (query);
if (context) {
GST_INFO_OBJECT (decoder, "pushing textures. GL context %p", context);
vtdec->texture_cache = gst_core_video_texture_cache_new (gl_context);
gst_object_unref (gl_context);
} else {
GST_WARNING_OBJECT (decoder,
"got memory:GLMemory caps but not GL context from downstream element");
}
} }
} }
out:
return ret; return ret;
} }