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applemedia: vtdec: fix GL negotiation

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This commit is contained in:
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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47
sys/applemedia/vtdec.c
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@ -198,37 +198,48 @@ static gboolean
gst_vtdec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query)
{
gboolean ret;
GstCaps *caps;
GstCapsFeatures *features;
GstVtdec *vtdec = GST_VTDEC (decoder);
ret =
GST_VIDEO_DECODER_CLASS (gst_vtdec_parent_class)->decide_allocation
(decoder, query);
if (ret) {
GstCaps *caps;
GstCapsFeatures *features;
guint idx;
if (!ret)
goto out;
gst_query_parse_allocation (query, &caps, NULL);
if (caps) {
features = gst_caps_get_features (caps, 0);
gst_query_parse_allocation (query, &caps, NULL);
if (caps) {
GstGLContext *gl_context = NULL;
features = gst_caps_get_features (caps, 0);
if (gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY)
&& gst_query_find_allocation_meta (query,
GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, &idx)) {
GstGLContext *context;
const GstStructure *upload_meta_params;
if (gst_caps_features_contains (features,
GST_CAPS_FEATURE_MEMORY_GL_MEMORY)) {
GstContext *context = NULL;
GstQuery *query = gst_query_new_context ("gst.gl.local_context");
if (gst_pad_peer_query (GST_VIDEO_DECODER_SRC_PAD (decoder), query)) {
gst_query_parse_nth_allocation_meta (query, idx, &upload_meta_params);
if (gst_structure_get (upload_meta_params, "gst.gl.GstGLContext",
GST_GL_TYPE_CONTEXT, &context, NULL) && context) {
vtdec->texture_cache = gst_core_video_texture_cache_new (context);
gst_object_unref (context);
gst_query_parse_context (query, &context);
if (context) {
const GstStructure *s = gst_context_get_structure (context);
gst_structure_get (s, "context", GST_GL_TYPE_CONTEXT, &gl_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;
}