mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-24 18:51:11 +00:00
[854/906] use the allocation query to propogate GstGLContext
uses the GstVideoGLTextureUploadMeta api type for the query
This commit is contained in:
Matthew Waters
Tim-Philipp Müller
parent
84425ad43d
commit
2623734d19
2 changed files with 266 additions and 139 deletions
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@ -204,20 +204,6 @@ gst_gl_filter_query (GstBaseTransform * trans, GstPadDirection direction,
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&filter->display);
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break;
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}
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case GST_QUERY_CUSTOM:
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{
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GstStructure *structure = gst_query_writable_structure (query);
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if (direction == GST_PAD_SINK &&
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gst_structure_has_name (structure, "gstglcontext")) {
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gst_structure_set (structure, "gstglcontext", G_TYPE_POINTER,
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filter->context, NULL);
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res = TRUE;
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} else
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res =
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GST_BASE_TRANSFORM_CLASS (parent_class)->query (trans, direction,
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query);
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break;
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}
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default:
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res =
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GST_BASE_TRANSFORM_CLASS (parent_class)->query (trans, direction,
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@ -272,41 +258,10 @@ gst_gl_filter_start (GstBaseTransform * bt)
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{
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GstGLFilter *filter = GST_GL_FILTER (bt);
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GstGLFilterClass *filter_class = GST_GL_FILTER_GET_CLASS (filter);
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GstStructure *structure;
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GstQuery *context_query;
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const GValue *id_value;
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if (!gst_gl_ensure_display (filter, &filter->display))
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return FALSE;
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structure = gst_structure_new_empty ("gstglcontext");
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context_query = gst_query_new_custom (GST_QUERY_CUSTOM, structure);
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if (!gst_pad_peer_query (bt->srcpad, context_query)) {
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GST_WARNING
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("Could not query GstGLContext from downstream (peer query failed)");
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}
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id_value = gst_structure_get_value (structure, "gstglcontext");
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if (G_VALUE_HOLDS_POINTER (id_value)) {
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/* at least one gl element is after in our gl chain */
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filter->context =
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gst_object_ref (GST_GL_CONTEXT (g_value_get_pointer (id_value)));
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} else {
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GError *error = NULL;
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GST_INFO ("Creating GstGLContext");
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filter->context = gst_gl_context_new (filter->display);
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if (!gst_gl_context_create (filter->context, filter->other_context, &error)) {
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GST_ELEMENT_ERROR (filter, RESOURCE, NOT_FOUND,
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("%s", error->message), (NULL));
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return FALSE;
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}
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}
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gst_query_unref (context_query);
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if (filter_class->onStart)
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filter_class->onStart (filter);
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@ -747,7 +702,6 @@ gst_gl_filter_set_caps (GstBaseTransform * bt, GstCaps * incaps,
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{
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GstGLFilter *filter;
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GstGLFilterClass *filter_class;
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guint in_width, in_height, out_width, out_height;
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filter = GST_GL_FILTER (bt);
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filter_class = GST_GL_FILTER_GET_CLASS (filter);
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@ -757,35 +711,6 @@ gst_gl_filter_set_caps (GstBaseTransform * bt, GstCaps * incaps,
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if (!gst_video_info_from_caps (&filter->out_info, outcaps))
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goto wrong_caps;
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in_width = GST_VIDEO_INFO_WIDTH (&filter->in_info);
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in_height = GST_VIDEO_INFO_HEIGHT (&filter->in_info);
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out_width = GST_VIDEO_INFO_WIDTH (&filter->out_info);
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out_height = GST_VIDEO_INFO_HEIGHT (&filter->out_info);
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//blocking call, generate a FBO
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if (!gst_gl_context_gen_fbo (filter->context, out_width, out_height,
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&filter->fbo, &filter->depthbuffer))
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goto display_error;
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gst_gl_context_gen_texture (filter->context, &filter->in_tex_id,
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GST_VIDEO_FORMAT_RGBA, in_width, in_height);
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gst_gl_context_gen_texture (filter->context, &filter->out_tex_id,
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GST_VIDEO_FORMAT_RGBA, out_width, out_height);
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if (filter_class->display_init_cb != NULL) {
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gst_gl_context_thread_add (filter->context, gst_gl_filter_start_gl, filter);
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}
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#if 0
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if (!filter->display->isAlive)
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goto error;
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#endif
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if (filter_class->onInitFBO) {
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if (!filter_class->onInitFBO (filter))
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goto error;
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}
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if (filter_class->set_caps) {
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if (!filter_class->set_caps (filter, incaps, outcaps))
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goto error;
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@ -802,14 +727,6 @@ wrong_caps:
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GST_WARNING ("Wrong caps");
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return FALSE;
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}
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display_error:
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{
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GST_ELEMENT_ERROR (filter, RESOURCE, NOT_FOUND,
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("%s", gst_gl_context_get_error ()), (NULL));
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return FALSE;
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}
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error:
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{
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return FALSE;
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@ -826,6 +743,8 @@ gst_gl_filter_propose_allocation (GstBaseTransform * trans,
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GstCaps *caps;
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guint size;
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gboolean need_pool;
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GError *error = NULL;
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GstStructure *gl_context;
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gst_query_parse_allocation (query, &caps, &need_pool);
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@ -851,6 +770,16 @@ gst_gl_filter_propose_allocation (GstBaseTransform * trans,
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}
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gst_structure_free (config);
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}
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if (!gst_gl_ensure_display (filter, &filter->display))
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return FALSE;
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if (!filter->context) {
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filter->context = gst_gl_context_new (filter->display);
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if (!gst_gl_context_create (filter->context, filter->other_context, &error))
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goto context_error;
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}
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if (pool == NULL && need_pool) {
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GstVideoInfo info;
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@ -870,11 +799,17 @@ gst_gl_filter_propose_allocation (GstBaseTransform * trans,
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}
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/* we need at least 2 buffer because we hold on to the last one */
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gst_query_add_allocation_pool (query, pool, size, 1, 0);
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gst_object_unref (pool);
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/* we also support various metadata */
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gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, 0);
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gst_object_unref (pool);
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gl_context =
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gst_structure_new ("GstVideoGLTextureUploadMeta", "gst.gl.GstGLContext",
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GST_GL_TYPE_CONTEXT, filter->context, NULL);
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gst_query_add_allocation_meta (query,
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GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, gl_context);
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gst_structure_free (gl_context);
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return TRUE;
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@ -894,17 +829,27 @@ config_failed:
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GST_DEBUG_OBJECT (trans, "failed setting config");
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return FALSE;
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}
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context_error:
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{
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GST_ELEMENT_ERROR (trans, RESOURCE, NOT_FOUND, ("%s", error->message),
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(NULL));
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return FALSE;
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}
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}
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static gboolean
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gst_gl_filter_decide_allocation (GstBaseTransform * trans, GstQuery * query)
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{
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GstGLFilter *filter = GST_GL_FILTER (trans);
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GstGLFilterClass *filter_class = GST_GL_FILTER_GET_CLASS (filter);
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GstBufferPool *pool = NULL;
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GstStructure *config;
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GstCaps *caps;
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guint min, max, size;
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gboolean update_pool;
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guint idx;
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GError *error = NULL;
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guint in_width, in_height, out_width, out_height;
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gst_query_parse_allocation (query, &caps, NULL);
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@ -922,6 +867,52 @@ gst_gl_filter_decide_allocation (GstBaseTransform * trans, GstQuery * query)
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update_pool = FALSE;
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}
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if (!gst_gl_ensure_display (filter, &filter->display))
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return FALSE;
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if (gst_query_find_allocation_meta (query,
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GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, &idx)) {
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GstGLContext *context;
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const GstStructure *upload_meta_params;
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gst_query_parse_nth_allocation_meta (query, idx, &upload_meta_params);
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if (gst_structure_get (upload_meta_params, "gst.gl.GstGLContext",
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GST_GL_TYPE_CONTEXT, &context, NULL) && context)
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gst_object_replace ((GstObject **) & filter->context,
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(GstObject *) context);
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}
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if (!filter->context) {
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filter->context = gst_gl_context_new (filter->display);
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if (!gst_gl_context_create (filter->context, filter->other_context, &error))
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goto context_error;
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}
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in_width = GST_VIDEO_INFO_WIDTH (&filter->in_info);
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in_height = GST_VIDEO_INFO_HEIGHT (&filter->in_info);
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out_width = GST_VIDEO_INFO_WIDTH (&filter->out_info);
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out_height = GST_VIDEO_INFO_HEIGHT (&filter->out_info);
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//blocking call, generate a FBO
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if (!gst_gl_context_gen_fbo (filter->context, out_width, out_height,
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&filter->fbo, &filter->depthbuffer))
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goto context_error;
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gst_gl_context_gen_texture (filter->context, &filter->in_tex_id,
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GST_VIDEO_FORMAT_RGBA, in_width, in_height);
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gst_gl_context_gen_texture (filter->context, &filter->out_tex_id,
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GST_VIDEO_FORMAT_RGBA, out_width, out_height);
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if (filter_class->display_init_cb != NULL) {
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gst_gl_context_thread_add (filter->context, gst_gl_filter_start_gl, filter);
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}
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if (filter_class->onInitFBO) {
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if (!filter_class->onInitFBO (filter))
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goto error;
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}
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if (!pool)
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pool = gst_gl_buffer_pool_new (filter->context);
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@ -938,6 +929,19 @@ gst_gl_filter_decide_allocation (GstBaseTransform * trans, GstQuery * query)
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gst_object_unref (pool);
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return TRUE;
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context_error:
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{
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GST_ELEMENT_ERROR (trans, RESOURCE, NOT_FOUND, ("%s", error->message),
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(NULL));
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return FALSE;
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}
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error:
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{
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GST_ELEMENT_ERROR (trans, LIBRARY, INIT,
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("Subclass failed to initialize."), (NULL));
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return FALSE;
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}
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}
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/**
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@ -317,6 +317,108 @@ gst_gl_mixer_pad_sink_acceptcaps (GstPad * pad, GstGLMixer * mix,
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return ret;
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}
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static gboolean
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gst_gl_mixer_propose_allocation (GstGLMixer * mix,
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GstQuery * decide_query, GstQuery * query)
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{
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GstBufferPool *pool;
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GstStructure *config;
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GstCaps *caps;
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guint size;
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gboolean need_pool;
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GError *error = NULL;
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GstStructure *gl_context;
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gst_query_parse_allocation (query, &caps, &need_pool);
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if (caps == NULL)
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goto no_caps;
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if ((pool = mix->priv->pool))
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gst_object_ref (pool);
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if (pool != NULL) {
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GstCaps *pcaps;
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/* we had a pool, check caps */
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GST_DEBUG_OBJECT (mix, "check existing pool caps");
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config = gst_buffer_pool_get_config (pool);
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gst_buffer_pool_config_get_params (config, &pcaps, &size, NULL, NULL);
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if (!gst_caps_is_equal (caps, pcaps)) {
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GST_DEBUG_OBJECT (mix, "pool has different caps");
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/* different caps, we can't use this pool */
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gst_object_unref (pool);
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pool = NULL;
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}
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gst_structure_free (config);
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}
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if (!gst_gl_ensure_display (mix, &mix->display))
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return FALSE;
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if (!mix->context) {
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mix->context = gst_gl_context_new (mix->display);
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if (!gst_gl_context_create (mix->context, NULL, &error))
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goto context_error;
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}
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if (pool == NULL && need_pool) {
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GstVideoInfo info;
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if (!gst_video_info_from_caps (&info, caps))
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goto invalid_caps;
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GST_DEBUG_OBJECT (mix, "create new pool");
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pool = gst_gl_buffer_pool_new (mix->context);
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/* the normal size of a frame */
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size = info.size;
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config = gst_buffer_pool_get_config (pool);
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gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
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if (!gst_buffer_pool_set_config (pool, config))
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goto config_failed;
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}
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gst_query_add_allocation_pool (query, pool, size, 1, 0);
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gst_object_unref (pool);
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/* we also support various metadata */
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gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, 0);
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gl_context =
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gst_structure_new ("GstVideoGLTextureUploadMeta", "gst.gl.GstGLContext",
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GST_GL_TYPE_CONTEXT, mix->context, NULL);
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gst_query_add_allocation_meta (query,
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GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, gl_context);
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gst_structure_free (gl_context);
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return TRUE;
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/* ERRORS */
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no_caps:
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{
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GST_DEBUG_OBJECT (mix, "no caps specified");
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return FALSE;
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}
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invalid_caps:
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{
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GST_DEBUG_OBJECT (mix, "invalid caps specified");
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return FALSE;
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}
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config_failed:
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{
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GST_DEBUG_OBJECT (mix, "failed setting config");
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return FALSE;
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}
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context_error:
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{
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GST_ELEMENT_ERROR (mix, RESOURCE, NOT_FOUND, ("%s", error->message),
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(NULL));
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return FALSE;
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}
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}
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static gboolean
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gst_gl_mixer_sink_query (GstCollectPads * pads, GstCollectData * data,
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GstQuery * query, GstGLMixer * mix)
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@ -327,6 +429,35 @@ gst_gl_mixer_sink_query (GstCollectPads * pads, GstCollectData * data,
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GST_TRACE ("QUERY %" GST_PTR_FORMAT, query);
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_ALLOCATION:
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{
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GstQuery *decide_query = NULL;
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gboolean negotiated;
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GST_OBJECT_LOCK (mix);
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if (G_UNLIKELY (!(negotiated = mix->priv->negotiated))) {
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GST_DEBUG_OBJECT (mix,
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"not negotiated yet, can't answer ALLOCATION query");
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GST_OBJECT_UNLOCK (mix);
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return FALSE;
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}
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if ((decide_query = mix->priv->query))
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gst_query_ref (decide_query);
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GST_OBJECT_UNLOCK (mix);
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GST_DEBUG_OBJECT (mix,
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"calling propose allocation with query %" GST_PTR_FORMAT,
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decide_query);
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/* pass the query to the propose_allocation vmethod if any */
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ret = gst_gl_mixer_propose_allocation (mix, decide_query, query);
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if (decide_query)
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gst_query_unref (decide_query);
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GST_DEBUG_OBJECT (mix, "ALLOCATION ret %d, %" GST_PTR_FORMAT, ret, query);
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break;
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}
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case GST_QUERY_CAPS:
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{
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GstCaps *filter, *caps;
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@ -940,38 +1071,9 @@ static gboolean
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gst_gl_mixer_activate (GstGLMixer * mix, gboolean activate)
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{
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if (activate) {
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GstStructure *structure;
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GstQuery *context_query;
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const GValue *id_value;
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if (!gst_gl_ensure_display (mix, &mix->display)) {
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return FALSE;
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}
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structure = gst_structure_new_empty ("gstglcontext");
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context_query = gst_query_new_custom (GST_QUERY_CUSTOM, structure);
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if (!gst_pad_peer_query (mix->srcpad, context_query)) {
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GST_WARNING
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("Could not query GstGLContext from downstream (peer query failed)");
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}
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id_value = gst_structure_get_value (structure, "gstglcontext");
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if (G_VALUE_HOLDS_POINTER (id_value)) {
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mix->context =
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gst_object_ref (GST_GL_CONTEXT (g_value_get_pointer (id_value)));
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} else {
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GError *error = NULL;
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GST_INFO ("Creating GstGLDisplay");
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mix->context = gst_gl_context_new (mix->display);
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if (!gst_gl_context_create (mix->context, 0, &error)) {
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GST_ELEMENT_ERROR (mix, RESOURCE, NOT_FOUND,
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("%s", error->message), (NULL));
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return FALSE;
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}
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}
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}
|
||||
|
||||
return TRUE;
|
||||
|
|
@ -980,11 +1082,15 @@ gst_gl_mixer_activate (GstGLMixer * mix, gboolean activate)
|
|||
static gboolean
|
||||
gst_gl_mixer_decide_allocation (GstGLMixer * mix, GstQuery * query)
|
||||
{
|
||||
GstGLMixerClass *mixer_class = GST_GL_MIXER_GET_CLASS (mix);
|
||||
GstBufferPool *pool = NULL;
|
||||
GstStructure *config;
|
||||
GstCaps *caps;
|
||||
guint min, max, size;
|
||||
gboolean update_pool;
|
||||
GError *error = NULL;
|
||||
guint idx;
|
||||
guint out_width, out_height;
|
||||
|
||||
gst_query_parse_allocation (query, &caps, NULL);
|
||||
|
||||
|
|
@ -1002,6 +1108,41 @@ gst_gl_mixer_decide_allocation (GstGLMixer * mix, GstQuery * query)
|
|||
update_pool = FALSE;
|
||||
}
|
||||
|
||||
if (!gst_gl_ensure_display (mix, &mix->display))
|
||||
return FALSE;
|
||||
|
||||
if (gst_query_find_allocation_meta (query,
|
||||
GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, &idx)) {
|
||||
GstGLContext *context;
|
||||
const GstStructure *upload_meta_params;
|
||||
|
||||
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)
|
||||
gst_object_replace ((GstObject **) & mix->context, (GstObject *) context);
|
||||
}
|
||||
|
||||
if (!mix->context) {
|
||||
mix->context = gst_gl_context_new (mix->display);
|
||||
if (!gst_gl_context_create (mix->context, NULL, &error))
|
||||
goto context_error;
|
||||
}
|
||||
|
||||
out_width = GST_VIDEO_INFO_WIDTH (&mix->out_info);
|
||||
out_height = GST_VIDEO_INFO_HEIGHT (&mix->out_info);
|
||||
|
||||
if (!gst_gl_context_gen_fbo (mix->context, out_width, out_height,
|
||||
&mix->fbo, &mix->depthbuffer))
|
||||
goto context_error;
|
||||
|
||||
if (mix->out_tex_id)
|
||||
gst_gl_context_del_texture (mix->context, &mix->out_tex_id);
|
||||
gst_gl_context_gen_texture (mix->context, &mix->out_tex_id,
|
||||
GST_VIDEO_FORMAT_RGBA, out_width, out_height);
|
||||
|
||||
if (mixer_class->set_caps)
|
||||
mixer_class->set_caps (mix, caps);
|
||||
|
||||
if (!pool)
|
||||
pool = gst_gl_buffer_pool_new (mix->context);
|
||||
|
||||
|
|
@ -1020,6 +1161,13 @@ gst_gl_mixer_decide_allocation (GstGLMixer * mix, GstQuery * query)
|
|||
gst_object_unref (pool);
|
||||
|
||||
return TRUE;
|
||||
|
||||
context_error:
|
||||
{
|
||||
GST_ELEMENT_ERROR (mix, RESOURCE, NOT_FOUND, ("%s", error->message),
|
||||
(NULL));
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
/* takes ownership of the pool, allocator and query */
|
||||
|
|
@ -1122,16 +1270,14 @@ no_decide_allocation:
|
|||
static gboolean
|
||||
gst_gl_mixer_src_setcaps (GstPad * pad, GstGLMixer * mix, GstCaps * caps)
|
||||
{
|
||||
GstGLMixerClass *mixer_class = GST_GL_MIXER_GET_CLASS (mix);
|
||||
GstGLMixerPrivate *priv = mix->priv;
|
||||
GstVideoInfo info;
|
||||
guint out_width, out_height;
|
||||
gboolean ret = TRUE;
|
||||
|
||||
GST_INFO_OBJECT (mix, "set src caps: %" GST_PTR_FORMAT, caps);
|
||||
|
||||
if (!gst_video_info_from_caps (&info, caps)) {
|
||||
ret = TRUE;
|
||||
ret = FALSE;
|
||||
goto done;
|
||||
}
|
||||
|
||||
|
|
@ -1148,23 +1294,8 @@ gst_gl_mixer_src_setcaps (GstPad * pad, GstGLMixer * mix, GstCaps * caps)
|
|||
|
||||
mix->out_info = info;
|
||||
|
||||
out_width = GST_VIDEO_INFO_WIDTH (&mix->out_info);
|
||||
out_height = GST_VIDEO_INFO_HEIGHT (&mix->out_info);
|
||||
|
||||
if (!gst_gl_context_gen_fbo (mix->context, out_width, out_height,
|
||||
&mix->fbo, &mix->depthbuffer))
|
||||
goto context_error;
|
||||
|
||||
if (mix->out_tex_id)
|
||||
gst_gl_context_del_texture (mix->context, &mix->out_tex_id);
|
||||
gst_gl_context_gen_texture (mix->context, &mix->out_tex_id,
|
||||
GST_VIDEO_FORMAT_RGBA, out_width, out_height);
|
||||
|
||||
GST_GL_MIXER_UNLOCK (mix);
|
||||
|
||||
if (mixer_class->set_caps)
|
||||
mixer_class->set_caps (mix, caps);
|
||||
|
||||
ret = gst_pad_set_caps (mix->srcpad, caps);
|
||||
|
||||
if (ret)
|
||||
|
|
@ -1173,14 +1304,6 @@ done:
|
|||
priv->negotiated = ret;
|
||||
|
||||
return ret;
|
||||
|
||||
/* ERRORS */
|
||||
context_error:
|
||||
{
|
||||
GST_ELEMENT_ERROR (mix, RESOURCE, NOT_FOUND,
|
||||
("%s", gst_gl_context_get_error ()), (NULL));
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
static GstPad *
|
||||
|
|
|
|||
Loading…
Reference in a new issue