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[905/906] Add GL context sharing support for non-gstgl elements

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This commit is contained in:
Matthew Waters 2014-03-15 14:06:40 +01:00 committed by Tim-Philipp Müller
parent 344ad5fe6f
commit 3f5b68b072
2 changed files with 78 additions and 4 deletions
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43
gst-libs/gst/gl/gstglfilter.c
View file

@ -735,6 +735,8 @@ gst_gl_filter_propose_allocation (GstBaseTransform * trans,
gboolean need_pool;
GError *error = NULL;
GstStructure *gl_context;
gchar *platform, *gl_apis;
gpointer handle;
gst_query_parse_allocation (query, &caps, &need_pool);
@ -794,11 +796,22 @@ gst_gl_filter_propose_allocation (GstBaseTransform * trans,
/* we also support various metadata */
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, 0);
gl_apis = gst_gl_api_to_string (gst_gl_context_get_gl_api (filter->context));
platform =
gst_gl_platform_to_string (gst_gl_context_get_gl_platform
(filter->context));
handle = (gpointer) gst_gl_context_get_gl_context (filter->context);
gl_context =
gst_structure_new ("GstVideoGLTextureUploadMeta", "gst.gl.GstGLContext",
GST_GL_TYPE_CONTEXT, filter->context, NULL);
GST_GL_TYPE_CONTEXT, filter->context, "gst.gl.context.handle",
G_TYPE_POINTER, handle, "gst.gl.context.type", G_TYPE_STRING, platform,
"gst.gl.context.apis", G_TYPE_STRING, gl_apis, NULL);
gst_query_add_allocation_meta (query,
GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, gl_context);
g_free (gl_apis);
g_free (platform);
gst_structure_free (gl_context);
return TRUE;
@ -840,6 +853,7 @@ gst_gl_filter_decide_allocation (GstBaseTransform * trans, GstQuery * query)
guint idx;
GError *error = NULL;
guint in_width, in_height, out_width, out_height;
GstGLContext *other_context = NULL;
gst_query_parse_allocation (query, &caps, NULL);
@ -864,6 +878,9 @@ gst_gl_filter_decide_allocation (GstBaseTransform * trans, GstQuery * query)
GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, &idx)) {
GstGLContext *context;
const GstStructure *upload_meta_params;
gpointer handle;
gchar *type;
gchar *apis;
gst_query_parse_nth_allocation_meta (query, idx, &upload_meta_params);
if (gst_structure_get (upload_meta_params, "gst.gl.GstGLContext",
@ -873,12 +890,34 @@ gst_gl_filter_decide_allocation (GstBaseTransform * trans, GstQuery * query)
filter->context = context;
if (old)
gst_object_unref (old);
} else if (gst_structure_get (upload_meta_params, "gst.gl.context.handle",
G_TYPE_POINTER, &handle, "gst.gl.context.type", G_TYPE_STRING,
&type, "gst.gl.context.apis", G_TYPE_STRING, &apis, NULL)
&& handle) {
GstGLPlatform platform = GST_GL_PLATFORM_NONE;
GstGLAPI gl_apis;
GST_DEBUG ("got GL context handle 0x%p with type %s and apis %s", handle,
type, apis);
if (g_strcmp0 (type, "glx") == 0)
platform = GST_GL_PLATFORM_GLX;
gl_apis = gst_gl_api_from_string (apis);
if (gl_apis && platform)
other_context =
gst_gl_context_new_wrapped (filter->display, (guintptr) handle,
platform, gl_apis);
}
}
if (!other_context)
other_context = filter->other_context;
if (!filter->context) {
filter->context = gst_gl_context_new (filter->display);
if (!gst_gl_context_create (filter->context, filter->other_context, &error))
if (!gst_gl_context_create (filter->context, other_context, &error))
goto context_error;
}

39
gst-libs/gst/gl/gstglmixer.c
View file

@ -328,6 +328,8 @@ gst_gl_mixer_propose_allocation (GstGLMixer * mix,
gboolean need_pool;
GError *error = NULL;
GstStructure *gl_context;
gchar *platform, *gl_apis;
gpointer handle;
gst_query_parse_allocation (query, &caps, &need_pool);
@ -386,11 +388,21 @@ gst_gl_mixer_propose_allocation (GstGLMixer * mix,
/* we also support various metadata */
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, 0);
gl_apis = gst_gl_api_to_string (gst_gl_context_get_gl_api (mix->context));
platform =
gst_gl_platform_to_string (gst_gl_context_get_gl_platform (mix->context));
handle = (gpointer) gst_gl_context_get_gl_context (mix->context);
gl_context =
gst_structure_new ("GstVideoGLTextureUploadMeta", "gst.gl.GstGLContext",
GST_GL_TYPE_CONTEXT, mix->context, NULL);
GST_GL_TYPE_CONTEXT, mix->context, "gst.gl.context.handle",
G_TYPE_POINTER, handle, "gst.gl.context.type", G_TYPE_STRING, platform,
"gst.gl.context.apis", G_TYPE_STRING, gl_apis, NULL);
gst_query_add_allocation_meta (query,
GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, gl_context);
g_free (gl_apis);
g_free (platform);
gst_structure_free (gl_context);
return TRUE;
@ -1080,6 +1092,7 @@ gst_gl_mixer_decide_allocation (GstGLMixer * mix, GstQuery * query)
GError *error = NULL;
guint idx;
guint out_width, out_height;
GstGLContext *other_context = NULL;
gst_query_parse_allocation (query, &caps, NULL);
@ -1104,6 +1117,9 @@ gst_gl_mixer_decide_allocation (GstGLMixer * mix, GstQuery * query)
GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, &idx)) {
GstGLContext *context;
const GstStructure *upload_meta_params;
gpointer handle;
gchar *type;
gchar *apis;
gst_query_parse_nth_allocation_meta (query, idx, &upload_meta_params);
if (gst_structure_get (upload_meta_params, "gst.gl.GstGLContext",
@ -1113,12 +1129,31 @@ gst_gl_mixer_decide_allocation (GstGLMixer * mix, GstQuery * query)
mix->context = context;
if (old)
gst_object_unref (old);
} else if (gst_structure_get (upload_meta_params, "gst.gl.context.handle",
G_TYPE_POINTER, &handle, "gst.gl.context.type", G_TYPE_STRING,
&type, "gst.gl.context.apis", G_TYPE_STRING, &apis, NULL)
&& handle) {
GstGLPlatform platform = GST_GL_PLATFORM_NONE;
GstGLAPI gl_apis;
GST_DEBUG ("got GL context handle 0x%p with type %s and apis %s", handle,
type, apis);
if (g_strcmp0 (type, "glx") == 0)
platform = GST_GL_PLATFORM_GLX;
gl_apis = gst_gl_api_from_string (apis);
if (gl_apis && platform)
other_context =
gst_gl_context_new_wrapped (mix->display, (guintptr) handle,
platform, gl_apis);
}
}
if (!mix->context) {
mix->context = gst_gl_context_new (mix->display);
if (!gst_gl_context_create (mix->context, NULL, &error))
if (!gst_gl_context_create (mix->context, other_context, &error))
goto context_error;
}