--- /dev/null
+/* Generic video mixer plugin
+ *
+ * GStreamer
+ * Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+#include <gst/video/video.h>
+
+#include "gstglbasemixer.h"
+
+#define gst_gl_base_mixer_parent_class parent_class
+G_DEFINE_ABSTRACT_TYPE (GstGLBaseMixer, gst_gl_base_mixer,
+ GST_TYPE_VIDEO_AGGREGATOR);
+static gboolean gst_gl_base_mixer_do_bufferpool (GstGLBaseMixer * mix,
+ GstCaps * outcaps);
+
+#define GST_CAT_DEFAULT gst_gl_base_mixer_debug
+GST_DEBUG_CATEGORY (gst_gl_base_mixer_debug);
+
+static void gst_gl_base_mixer_pad_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+static void gst_gl_base_mixer_pad_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_gl_base_mixer_pad_finalize (GObject * object);
+
+static void gst_gl_base_mixer_set_context (GstElement * element,
+ GstContext * context);
+
+enum
+{
+ PROP_PAD_0
+};
+
+#define GST_GL_BASE_MIXER_GET_PRIVATE(obj) \
+ (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GST_TYPE_GL_BASE_MIXER, GstGLBaseMixerPrivate))
+
+struct _GstGLBaseMixerPrivate
+{
+ gboolean negotiated;
+
+ GstGLContext *other_context;
+
+ GstBufferPool *pool;
+ GstAllocator *allocator;
+ GstAllocationParams params;
+ GstQuery *query;
+};
+
+G_DEFINE_TYPE (GstGLBaseMixerPad, gst_gl_base_mixer_pad,
+ GST_TYPE_VIDEO_AGGREGATOR_PAD);
+
+static void
+gst_gl_base_mixer_pad_class_init (GstGLBaseMixerPadClass * klass)
+{
+ GObjectClass *gobject_class = (GObjectClass *) klass;
+ GstVideoAggregatorPadClass *vaggpad_class =
+ (GstVideoAggregatorPadClass *) klass;
+
+ gobject_class->set_property = gst_gl_base_mixer_pad_set_property;
+ gobject_class->get_property = gst_gl_base_mixer_pad_get_property;
+
+ gobject_class->finalize = gst_gl_base_mixer_pad_finalize;
+
+ vaggpad_class->set_info = NULL;
+ vaggpad_class->prepare_frame = NULL;
+ vaggpad_class->clean_frame = NULL;
+}
+
+static void
+gst_gl_base_mixer_pad_finalize (GObject * object)
+{
+ G_OBJECT_CLASS (gst_gl_base_mixer_pad_parent_class)->finalize (object);
+}
+
+static void
+gst_gl_base_mixer_pad_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_gl_base_mixer_pad_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static gboolean
+_negotiated_caps (GstVideoAggregator * vagg, GstCaps * caps)
+{
+ GstGLBaseMixer *mix = GST_GL_BASE_MIXER (vagg);
+
+ return gst_gl_base_mixer_do_bufferpool (mix, caps);
+}
+
+static gboolean
+_default_propose_allocation (GstGLBaseMixer * mix, GstGLBaseMixerPad * pad,
+ GstQuery * decide_query, GstQuery * query)
+{
+ return TRUE;
+}
+
+static gboolean
+gst_gl_base_mixer_sink_query (GstAggregator * agg, GstAggregatorPad * bpad,
+ GstQuery * query)
+{
+ gboolean ret = FALSE;
+ GstGLBaseMixer *mix = GST_GL_BASE_MIXER (agg);
+ GstGLBaseMixerClass *mix_class = GST_GL_BASE_MIXER_GET_CLASS (mix);
+ GstGLBaseMixerPad *pad = GST_GL_BASE_MIXER_PAD (bpad);
+
+ GST_TRACE ("QUERY %" GST_PTR_FORMAT, query);
+
+ switch (GST_QUERY_TYPE (query)) {
+ case GST_QUERY_ALLOCATION:
+ {
+ GstQuery *decide_query = NULL;
+
+ GST_OBJECT_LOCK (mix);
+ if (G_UNLIKELY (!mix->priv->negotiated)) {
+ GST_DEBUG_OBJECT (mix,
+ "not negotiated yet, can't answer ALLOCATION query");
+ GST_OBJECT_UNLOCK (mix);
+ return FALSE;
+ }
+ if ((decide_query = mix->priv->query))
+ gst_query_ref (decide_query);
+ GST_OBJECT_UNLOCK (mix);
+
+ GST_DEBUG_OBJECT (mix,
+ "calling propose allocation with query %" GST_PTR_FORMAT,
+ decide_query);
+
+ /* pass the query to the propose_allocation vmethod if any */
+ if (mix_class->propose_allocation)
+ ret = mix_class->propose_allocation (mix, pad, decide_query, query);
+ else
+ ret = FALSE;
+
+ if (decide_query)
+ gst_query_unref (decide_query);
+
+ GST_DEBUG_OBJECT (mix, "ALLOCATION ret %d, %" GST_PTR_FORMAT, ret, query);
+ return ret;
+ }
+ case GST_QUERY_CONTEXT:
+ {
+ const gchar *context_type;
+ GstContext *context, *old_context;
+
+ ret = gst_gl_handle_context_query ((GstElement *) mix, query,
+ &mix->display, &mix->priv->other_context);
+ if (mix->display)
+ gst_gl_display_filter_gl_api (mix->display,
+ mix_class->supported_gl_api);
+ gst_query_parse_context_type (query, &context_type);
+
+ if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
+ GstStructure *s;
+
+ gst_query_parse_context (query, &old_context);
+
+ if (old_context)
+ context = gst_context_copy (old_context);
+ else
+ context = gst_context_new ("gst.gl.local_context", FALSE);
+
+ s = gst_context_writable_structure (context);
+ gst_structure_set (s, "context", GST_GL_TYPE_CONTEXT, mix->context,
+ NULL);
+ gst_query_set_context (query, context);
+ gst_context_unref (context);
+
+ ret = mix->context != NULL;
+ }
+ GST_LOG_OBJECT (mix, "context query of type %s %i", context_type, ret);
+
+ if (ret)
+ return ret;
+
+ break;
+ }
+ default:
+ break;
+ }
+
+ return GST_AGGREGATOR_CLASS (parent_class)->sink_query (agg, bpad, query);;
+}
+
+static void
+gst_gl_base_mixer_pad_init (GstGLBaseMixerPad * mixerpad)
+{
+}
+
+/* GLBaseMixer signals and args */
+enum
+{
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum
+{
+ PROP_0,
+ PROP_CONTEXT
+};
+
+static gboolean gst_gl_base_mixer_src_query (GstAggregator * agg,
+ GstQuery * query);
+
+static gboolean
+gst_gl_base_mixer_src_activate_mode (GstAggregator * aggregator,
+ GstPadMode mode, gboolean active);
+static gboolean gst_gl_base_mixer_stop (GstAggregator * agg);
+static gboolean gst_gl_base_mixer_start (GstAggregator * agg);
+
+static void gst_gl_base_mixer_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_gl_base_mixer_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+static gboolean gst_gl_base_mixer_decide_allocation (GstGLBaseMixer * mix,
+ GstQuery * query);
+static gboolean gst_gl_base_mixer_set_allocation (GstGLBaseMixer * mix,
+ GstBufferPool * pool, GstAllocator * allocator,
+ GstAllocationParams * params, GstQuery * query);
+
+static void gst_gl_base_mixer_finalize (GObject * object);
+
+static void
+gst_gl_base_mixer_class_init (GstGLBaseMixerClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *element_class;
+
+ GstVideoAggregatorClass *videoaggregator_class =
+ (GstVideoAggregatorClass *) klass;
+ GstAggregatorClass *agg_class = (GstAggregatorClass *) klass;
+
+ GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "glmixer", 0, "opengl mixer");
+
+ gobject_class = (GObjectClass *) klass;
+ element_class = GST_ELEMENT_CLASS (klass);
+
+ g_type_class_add_private (klass, sizeof (GstGLBaseMixerPrivate));
+
+ gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_gl_base_mixer_finalize);
+
+ gobject_class->get_property = gst_gl_base_mixer_get_property;
+ gobject_class->set_property = gst_gl_base_mixer_set_property;
+
+ element_class->set_context =
+ GST_DEBUG_FUNCPTR (gst_gl_base_mixer_set_context);
+
+ agg_class->sinkpads_type = GST_TYPE_GL_BASE_MIXER_PAD;
+ agg_class->sink_query = gst_gl_base_mixer_sink_query;
+ agg_class->src_query = gst_gl_base_mixer_src_query;
+ agg_class->src_activate = gst_gl_base_mixer_src_activate_mode;
+ agg_class->stop = gst_gl_base_mixer_stop;
+ agg_class->start = gst_gl_base_mixer_start;
+
+ videoaggregator_class->negotiated_caps = _negotiated_caps;
+
+ klass->propose_allocation = _default_propose_allocation;
+
+ g_object_class_install_property (gobject_class, PROP_CONTEXT,
+ g_param_spec_object ("context",
+ "OpenGL context",
+ "Get OpenGL context",
+ GST_GL_TYPE_CONTEXT, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+
+ /* Register the pad class */
+ g_type_class_ref (GST_TYPE_GL_BASE_MIXER_PAD);
+
+ klass->supported_gl_api = GST_GL_API_ANY;
+}
+
+static void
+gst_gl_base_mixer_reset (GstGLBaseMixer * mix)
+{
+ /* clean up collect data */
+ mix->priv->negotiated = FALSE;
+}
+
+static void
+gst_gl_base_mixer_init (GstGLBaseMixer * mix)
+{
+ mix->priv = GST_GL_BASE_MIXER_GET_PRIVATE (mix);
+
+ gst_gl_base_mixer_reset (mix);
+}
+
+static void
+gst_gl_base_mixer_finalize (GObject * object)
+{
+ GstGLBaseMixer *mix = GST_GL_BASE_MIXER (object);
+
+ if (mix->priv->other_context) {
+ gst_object_unref (mix->priv->other_context);
+ mix->priv->other_context = NULL;
+ }
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gst_gl_base_mixer_set_context (GstElement * element, GstContext * context)
+{
+ GstGLBaseMixer *mix = GST_GL_BASE_MIXER (element);
+ GstGLBaseMixerClass *mix_class = GST_GL_BASE_MIXER_GET_CLASS (mix);
+
+ gst_gl_handle_set_context (element, context, &mix->display,
+ &mix->priv->other_context);
+
+ if (mix->display)
+ gst_gl_display_filter_gl_api (mix->display, mix_class->supported_gl_api);
+}
+
+static gboolean
+gst_gl_base_mixer_activate (GstGLBaseMixer * mix, gboolean active)
+{
+ GstGLBaseMixerClass *mix_class = GST_GL_BASE_MIXER_GET_CLASS (mix);
+ gboolean result = TRUE;
+
+ if (active) {
+ if (!gst_gl_ensure_element_data (mix, &mix->display,
+ &mix->priv->other_context))
+ return FALSE;
+
+ gst_gl_display_filter_gl_api (mix->display, mix_class->supported_gl_api);
+ }
+
+ return result;
+}
+
+static gboolean
+gst_gl_base_mixer_src_activate_mode (GstAggregator * aggregator,
+ GstPadMode mode, gboolean active)
+{
+ GstGLBaseMixer *mix;
+ gboolean result = FALSE;
+
+ mix = GST_GL_BASE_MIXER (aggregator);
+
+ switch (mode) {
+ case GST_PAD_MODE_PUSH:
+ case GST_PAD_MODE_PULL:
+ result = gst_gl_base_mixer_activate (mix, active);
+ break;
+ default:
+ result = TRUE;
+ break;
+ }
+ return result;
+}
+
+static gboolean
+gst_gl_base_mixer_src_query (GstAggregator * agg, GstQuery * query)
+{
+ gboolean res = FALSE;
+ GstGLBaseMixer *mix = GST_GL_BASE_MIXER (agg);
+ GstGLBaseMixerClass *mix_class = GST_GL_BASE_MIXER_GET_CLASS (mix);
+
+ switch (GST_QUERY_TYPE (query)) {
+ case GST_QUERY_CONTEXT:
+ {
+ const gchar *context_type;
+ GstContext *context, *old_context;
+
+ res = gst_gl_handle_context_query ((GstElement *) mix, query,
+ &mix->display, &mix->priv->other_context);
+ if (mix->display)
+ gst_gl_display_filter_gl_api (mix->display,
+ mix_class->supported_gl_api);
+ gst_query_parse_context_type (query, &context_type);
+
+ if (g_strcmp0 (context_type, "gst.gl.local_context") == 0) {
+ GstStructure *s;
+
+ gst_query_parse_context (query, &old_context);
+
+ if (old_context)
+ context = gst_context_copy (old_context);
+ else
+ context = gst_context_new ("gst.gl.local_context", FALSE);
+
+ s = gst_context_writable_structure (context);
+ gst_structure_set (s, "context", GST_GL_TYPE_CONTEXT, mix->context,
+ NULL);
+ gst_query_set_context (query, context);
+ gst_context_unref (context);
+
+ res = mix->context != NULL;
+ }
+ GST_LOG_OBJECT (mix, "context query of type %s %i", context_type, res);
+
+ if (res)
+ return res;
+
+ break;
+ }
+ default:
+ break;
+ }
+
+ return GST_AGGREGATOR_CLASS (parent_class)->src_query (agg, query);
+}
+
+static gboolean
+_find_local_gl_context (GstGLBaseMixer * mix)
+{
+ GstQuery *query;
+ GstContext *context;
+ const GstStructure *s;
+
+ if (mix->context)
+ return TRUE;
+
+ query = gst_query_new_context ("gst.gl.local_context");
+ if (!mix->context && gst_gl_run_query (GST_ELEMENT (mix), query, GST_PAD_SRC)) {
+ gst_query_parse_context (query, &context);
+ if (context) {
+ s = gst_context_get_structure (context);
+ gst_structure_get (s, "context", GST_GL_TYPE_CONTEXT, &mix->context,
+ NULL);
+ }
+ }
+ if (!mix->context
+ && gst_gl_run_query (GST_ELEMENT (mix), query, GST_PAD_SINK)) {
+ gst_query_parse_context (query, &context);
+ if (context) {
+ s = gst_context_get_structure (context);
+ gst_structure_get (s, "context", GST_GL_TYPE_CONTEXT, &mix->context,
+ NULL);
+ }
+ }
+
+ GST_DEBUG_OBJECT (mix, "found local context %p", mix->context);
+
+ gst_query_unref (query);
+
+ if (mix->context)
+ return TRUE;
+
+ return FALSE;
+}
+
+static gboolean
+gst_gl_base_mixer_decide_allocation (GstGLBaseMixer * mix, GstQuery * query)
+{
+ GstGLBaseMixerClass *mix_class = GST_GL_BASE_MIXER_GET_CLASS (mix);
+ GError *error = NULL;
+ guint idx;
+ GstGLContext *other_context = NULL;
+ gboolean ret = TRUE;
+
+ if (!gst_gl_ensure_element_data (mix, &mix->display,
+ &mix->priv->other_context))
+ return FALSE;
+
+ gst_gl_display_filter_gl_api (mix->display, mix_class->supported_gl_api);
+
+ _find_local_gl_context (mix);
+
+ if (gst_query_find_allocation_meta (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 (upload_meta_params) {
+ if (gst_structure_get (upload_meta_params, "gst.gl.GstGLContext",
+ GST_GL_TYPE_CONTEXT, &context, NULL) && context) {
+ GstGLContext *old = mix->context;
+
+ 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;
+ GstGLAPI gl_apis;
+
+ GST_DEBUG ("got GL context handle 0x%p with type %s and apis %s",
+ handle, type, apis);
+
+ platform = gst_gl_platform_from_string (type);
+ 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->priv->other_context) {
+ if (!other_context) {
+ other_context = mix->priv->other_context;
+ } else {
+ GST_ELEMENT_WARNING (mix, LIBRARY, SETTINGS,
+ ("%s", "Cannot share with more than one GL context"),
+ ("%s", "Cannot share with more than one GL context"));
+ }
+ }
+
+ if (!mix->context) {
+ mix->context = gst_gl_context_new (mix->display);
+ if (!gst_gl_context_create (mix->context, other_context, &error))
+ goto context_error;
+ }
+
+ if (mix_class->decide_allocation)
+ ret = mix_class->decide_allocation (mix, query);
+
+ return ret;
+
+context_error:
+ {
+ GST_ELEMENT_ERROR (mix, RESOURCE, NOT_FOUND, ("%s", error->message),
+ (NULL));
+ return FALSE;
+ }
+}
+
+/* takes ownership of the pool, allocator and query */
+static gboolean
+gst_gl_base_mixer_set_allocation (GstGLBaseMixer * mix,
+ GstBufferPool * pool, GstAllocator * allocator,
+ GstAllocationParams * params, GstQuery * query)
+{
+ GstAllocator *oldalloc;
+ GstBufferPool *oldpool;
+ GstQuery *oldquery;
+ GstGLBaseMixerPrivate *priv = mix->priv;
+
+ GST_DEBUG ("storing allocation query");
+
+ GST_OBJECT_LOCK (mix);
+ oldpool = priv->pool;
+ priv->pool = pool;
+
+ oldalloc = priv->allocator;
+ priv->allocator = allocator;
+
+ oldquery = priv->query;
+ priv->query = query;
+
+ if (params)
+ priv->params = *params;
+ else
+ gst_allocation_params_init (&priv->params);
+ GST_OBJECT_UNLOCK (mix);
+
+ if (oldpool) {
+ GST_DEBUG_OBJECT (mix, "deactivating old pool %p", oldpool);
+ gst_buffer_pool_set_active (oldpool, FALSE);
+ gst_object_unref (oldpool);
+ }
+ if (oldalloc) {
+ gst_object_unref (oldalloc);
+ }
+ if (oldquery) {
+ gst_query_unref (oldquery);
+ }
+ return TRUE;
+}
+
+static gboolean
+gst_gl_base_mixer_do_bufferpool (GstGLBaseMixer * mix, GstCaps * outcaps)
+{
+ GstQuery *query;
+ gboolean result = TRUE;
+ GstBufferPool *pool = NULL;
+ GstAllocator *allocator;
+ GstAllocationParams params;
+ GstAggregator *agg = GST_AGGREGATOR (mix);
+
+ /* find a pool for the negotiated caps now */
+ GST_DEBUG_OBJECT (mix, "doing allocation query");
+ query = gst_query_new_allocation (outcaps, TRUE);
+ if (!gst_pad_peer_query (agg->srcpad, query)) {
+ /* not a problem, just debug a little */
+ GST_DEBUG_OBJECT (mix, "peer ALLOCATION query failed");
+ }
+
+ GST_DEBUG_OBJECT (mix, "calling decide_allocation");
+ result = gst_gl_base_mixer_decide_allocation (mix, query);
+
+ GST_DEBUG_OBJECT (mix, "ALLOCATION (%d) params: %" GST_PTR_FORMAT, result,
+ query);
+
+ if (!result)
+ goto no_decide_allocation;
+
+ /* we got configuration from our peer or the decide_allocation method,
+ * parse them */
+ if (gst_query_get_n_allocation_params (query) > 0) {
+ gst_query_parse_nth_allocation_param (query, 0, &allocator, ¶ms);
+ } else {
+ allocator = NULL;
+ gst_allocation_params_init (¶ms);
+ }
+
+ if (gst_query_get_n_allocation_pools (query) > 0)
+ gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL);
+
+ /* now store */
+ result =
+ gst_gl_base_mixer_set_allocation (mix, pool, allocator, ¶ms, query);
+
+ return result;
+
+ /* Errors */
+no_decide_allocation:
+ {
+ GST_WARNING_OBJECT (mix, "Failed to decide allocation");
+ gst_query_unref (query);
+
+ return result;
+ }
+}
+
+GstBufferPool *
+gst_gl_base_mixer_get_buffer_pool (GstGLBaseMixer * mix)
+{
+ GstBufferPool *pool;
+
+ GST_OBJECT_LOCK (mix);
+ pool = mix->priv->pool;
+ if (pool)
+ gst_object_ref (pool);
+ GST_OBJECT_UNLOCK (mix);
+
+ return pool;
+}
+
+static void
+gst_gl_base_mixer_get_property (GObject * object,
+ guint prop_id, GValue * value, GParamSpec * pspec)
+{
+ GstGLBaseMixer *mixer = GST_GL_BASE_MIXER (object);
+
+ switch (prop_id) {
+ case PROP_CONTEXT:
+ g_value_set_object (value, mixer->context);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_gl_base_mixer_set_property (GObject * object,
+ guint prop_id, const GValue * value, GParamSpec * pspec)
+{
+ switch (prop_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static gboolean
+gst_gl_base_mixer_start (GstAggregator * agg)
+{
+ return TRUE;
+}
+
+static gboolean
+gst_gl_base_mixer_stop (GstAggregator * agg)
+{
+ GstGLBaseMixer *mix = GST_GL_BASE_MIXER (agg);
+
+ if (mix->priv->query) {
+ gst_query_unref (mix->priv->query);
+ mix->priv->query = NULL;
+ }
+
+ if (mix->priv->pool) {
+ gst_object_unref (mix->priv->pool);
+ mix->priv->pool = NULL;
+ }
+
+ if (mix->display) {
+ gst_object_unref (mix->display);
+ mix->display = NULL;
+ }
+
+ if (mix->context) {
+ gst_object_unref (mix->context);
+ mix->context = NULL;
+ }
+
+ gst_gl_base_mixer_reset (mix);
+
+ return TRUE;
+}
--- /dev/null
+/*
+ * GStreamer
+ * Copyright (C) 2009 Julien Isorce <julien.isorce@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __GST_GL_BASE_MIXER_H__
+#define __GST_GL_BASE_MIXER_H__
+
+#include <gst/gst.h>
+#include <gst/video/video.h>
+#include <gst/gl/gl.h>
+#include <gst/video/gstvideoaggregator.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_GL_BASE_MIXER_PAD (gst_gl_base_mixer_pad_get_type())
+#define GST_GL_BASE_MIXER_PAD(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_BASE_MIXER_PAD, GstGLBaseMixerPad))
+#define GST_GL_BASE_MIXER_PAD_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_BASE_MIXER_PAD, GstGLBaseMixerPadClass))
+#define GST_IS_GL_BASE_MIXER_PAD(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_BASE_MIXER_PAD))
+#define GST_IS_GL_BASE_MIXER_PAD_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_BASE_MIXER_PAD))
+#define GST_GL_BASE_MIXER_PAD_GET_CLASS(obj) \
+ (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_GL_BASE_MIXER_PAD,GstGLBaseMixerPadClass))
+
+typedef struct _GstGLBaseMixerPad GstGLBaseMixerPad;
+typedef struct _GstGLBaseMixerPadClass GstGLBaseMixerPadClass;
+
+/* all information needed for one video stream */
+struct _GstGLBaseMixerPad
+{
+ GstVideoAggregatorPad parent; /* subclass the pad */
+};
+
+struct _GstGLBaseMixerPadClass
+{
+ GstVideoAggregatorPadClass parent_class;
+};
+
+GType gst_gl_base_mixer_pad_get_type (void);
+
+#define GST_TYPE_GL_BASE_MIXER (gst_gl_base_mixer_get_type())
+#define GST_GL_BASE_MIXER(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_BASE_MIXER, GstGLBaseMixer))
+#define GST_GL_BASE_MIXER_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_BASE_MIXER, GstGLBaseMixerClass))
+#define GST_IS_GL_BASE_MIXER(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_BASE_MIXER))
+#define GST_IS_GL_BASE_MIXER_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_BASE_MIXER))
+#define GST_GL_BASE_MIXER_GET_CLASS(obj) \
+ (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_GL_BASE_MIXER,GstGLBaseMixerClass))
+
+typedef struct _GstGLBaseMixer GstGLBaseMixer;
+typedef struct _GstGLBaseMixerClass GstGLBaseMixerClass;
+typedef struct _GstGLBaseMixerPrivate GstGLBaseMixerPrivate;
+
+struct _GstGLBaseMixer
+{
+ GstVideoAggregator vaggregator;
+
+ GstGLDisplay *display;
+ GstGLContext *context;
+
+ gpointer _padding[GST_PADDING];
+
+ GstGLBaseMixerPrivate *priv;
+};
+
+struct _GstGLBaseMixerClass
+{
+ GstVideoAggregatorClass parent_class;
+ GstGLAPI supported_gl_api;
+
+ gboolean (*propose_allocation) (GstGLBaseMixer * mix, GstGLBaseMixerPad * pad, GstQuery * decide_query, GstQuery *query);
+ gboolean (*decide_allocation) (GstGLBaseMixer * mix, GstQuery * decide_query);
+
+ gpointer _padding[GST_PADDING];
+};
+
+GType gst_gl_base_mixer_get_type(void);
+
+GstBufferPool *gst_gl_base_mixer_get_buffer_pool (GstGLBaseMixer * mix);
+
+G_END_DECLS
+#endif /* __GST_GL_BASE_MIXER_H__ */
#endif
#include <gst/gst.h>
-#include <gst/base/gstcollectpads.h>
#include <gst/video/video.h>
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_STRING_H
-#include <string.h>
-#endif
-
#include "gstglmixer.h"
#if GST_GL_HAVE_PLATFORM_EGL
#endif
#define gst_gl_mixer_parent_class parent_class
-G_DEFINE_ABSTRACT_TYPE (GstGLMixer, gst_gl_mixer, GST_TYPE_VIDEO_AGGREGATOR);
-static gboolean gst_gl_mixer_do_bufferpool (GstGLMixer * mix,
- GstCaps * outcaps);
-
+G_DEFINE_ABSTRACT_TYPE (GstGLMixer, gst_gl_mixer, GST_TYPE_GL_BASE_MIXER);
#define GST_CAT_DEFAULT gst_gl_mixer_debug
GST_DEBUG_CATEGORY (gst_gl_mixer_debug);
static GstBuffer *_default_pad_upload_buffer (GstGLMixer * mix,
GstGLMixerFrameData * frame, GstBuffer * buffer);
-static void gst_gl_mixer_set_context (GstElement * element,
- GstContext * context);
-
enum
{
PROP_PAD_0
{
gboolean negotiated;
- GstBufferPool *pool;
- gboolean pool_active;
- GstAllocator *allocator;
- GstAllocationParams params;
- GstQuery *query;
-
gboolean gl_resource_ready;
GMutex gl_resource_lock;
GCond gl_resource_cond;
};
-G_DEFINE_TYPE (GstGLMixerPad, gst_gl_mixer_pad, GST_TYPE_VIDEO_AGGREGATOR_PAD);
+G_DEFINE_TYPE (GstGLMixerPad, gst_gl_mixer_pad, GST_TYPE_GL_BASE_MIXER_PAD);
static void
gst_gl_mixer_pad_class_init (GstGLMixerPadClass * klass)
_init_upload (GstGLMixer * mix, GstGLMixerPad * pad)
{
GstVideoAggregatorPad *vaggpad = GST_VIDEO_AGGREGATOR_PAD (pad);
+ GstGLContext *context = GST_GL_BASE_MIXER (mix)->context;
if (!pad->upload) {
GstCaps *in_caps = gst_pad_get_current_caps (GST_PAD (pad));
GstCapsFeatures *gl_features =
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_GL_MEMORY);
- pad->upload = gst_gl_upload_new (mix->context);
+ pad->upload = gst_gl_upload_new (context);
gst_caps_set_features (upload_caps, 0,
gst_caps_features_copy (gl_features));
gl_caps = gst_video_info_to_caps (&gl_info);
gst_caps_set_features (gl_caps, 0, gst_caps_features_copy (gl_features));
- pad->convert = gst_gl_color_convert_new (mix->context);
+ pad->convert = gst_gl_color_convert_new (context);
gst_gl_color_convert_set_caps (pad->convert, upload_caps, gl_caps);
gst_caps_unref (gl_caps);
_negotiated_caps (GstVideoAggregator * vagg, GstCaps * caps)
{
GstGLMixer *mix = GST_GL_MIXER (vagg);
- gboolean ret = gst_gl_mixer_do_bufferpool (mix, caps);
+ GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix);
+ GstGLBaseMixerClass *base_mix_class = GST_GL_BASE_MIXER_GET_CLASS (mix);
+ gboolean ret;
- mix->priv->negotiated = ret;
+ mix->priv->negotiated = TRUE;
+ base_mix_class->supported_gl_api = mix_class->supported_gl_api;
gst_caps_replace (&mix->out_caps, caps);
+ ret = GST_VIDEO_AGGREGATOR_CLASS (parent_class)->negotiated_caps (vagg, caps);
+
+ mix->context = GST_GL_BASE_MIXER (mix)->context;
+
return ret;
}
static gboolean
-gst_gl_mixer_propose_allocation (GstGLMixer * mix, GstGLMixerPad * pad,
- GstQuery * decide_query, GstQuery * query)
+gst_gl_mixer_propose_allocation (GstGLBaseMixer * base_mix,
+ GstGLBaseMixerPad * base_pad, GstQuery * decide_query, GstQuery * query)
{
- GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix);
+ GstGLMixer *mix = GST_GL_MIXER (base_mix);
+ GstGLMixerPad *pad = GST_GL_MIXER_PAD (base_pad);
+ GstGLContext *context = base_mix->context;
GstBufferPool *pool = NULL;
GstStructure *config;
GstCaps *caps;
guint size = 0;
gboolean need_pool;
- GError *error = NULL;
gst_query_parse_allocation (query, &caps, &need_pool);
if (caps == NULL)
goto no_caps;
- /* FIXME this is not thread safe, this method can be called in parallel */
- if (!gst_gl_ensure_element_data (mix, &mix->display, &mix->other_context))
- return FALSE;
-
- gst_gl_display_filter_gl_api (mix->display, mix_class->supported_gl_api);
-
- if (!mix->context) {
- mix->context = gst_gl_context_new (mix->display);
- if (!gst_gl_context_create (mix->context, mix->other_context, &error))
- goto context_error;
- }
-
if (need_pool) {
GstVideoInfo info;
goto invalid_caps;
GST_DEBUG_OBJECT (mix, "create new pool");
- pool = gst_gl_buffer_pool_new (mix->context);
+ pool = gst_gl_buffer_pool_new (context);
/* the normal size of a frame */
size = info.size;
}
/* we also support various metadata */
- if (mix->context->gl_vtable->FenceSync)
+ if (context->gl_vtable->FenceSync)
gst_query_add_allocation_meta (query, GST_GL_SYNC_META_API_TYPE, 0);
_init_upload (mix, pad);
GST_DEBUG_OBJECT (mix, "failed setting config");
return FALSE;
}
-context_error:
- {
- GST_ELEMENT_ERROR (mix, RESOURCE, NOT_FOUND, ("%s", error->message),
- (NULL));
- return FALSE;
- }
}
static gboolean
GstCaps *
gst_gl_mixer_update_caps (GstGLMixer * mix, GstCaps * caps)
{
- GstCaps *result, *tmp;
+ GstGLContext *context = GST_GL_BASE_MIXER (mix)->context;
+ GstCaps *result, *tmp, *gl_caps;
+
+ gl_caps = gst_caps_from_string ("video/x-raw(memory:GLMemory),format=RGBA");
result =
- gst_gl_color_convert_transform_caps (mix->context, GST_PAD_SRC, caps,
- NULL);
+ gst_gl_color_convert_transform_caps (context, GST_PAD_SRC, gl_caps, NULL);
tmp = result;
GST_DEBUG_OBJECT (mix, "convert returned caps %" GST_PTR_FORMAT, tmp);
- result = gst_gl_upload_transform_caps (mix->context, GST_PAD_SRC, tmp, NULL);
+ result = gst_gl_upload_transform_caps (context, GST_PAD_SRC, tmp, NULL);
gst_caps_unref (tmp);
tmp = result;
GST_DEBUG_OBJECT (mix, "transfer returned caps %" GST_PTR_FORMAT, tmp);
{
gboolean ret = FALSE;
GstGLMixer *mix = GST_GL_MIXER (agg);
- GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix);
- GstGLMixerPad *pad = GST_GL_MIXER_PAD (bpad);
GST_TRACE ("QUERY %" GST_PTR_FORMAT, query);
ret = TRUE;
break;
}
- case GST_QUERY_ALLOCATION:
- {
- GstQuery *decide_query = NULL;
-
- GST_OBJECT_LOCK (mix);
- if (G_UNLIKELY (!mix->priv->negotiated)) {
- GST_DEBUG_OBJECT (mix,
- "not negotiated yet, can't answer ALLOCATION query");
- GST_OBJECT_UNLOCK (mix);
- return FALSE;
- }
- if ((decide_query = mix->priv->query))
- gst_query_ref (decide_query);
- GST_OBJECT_UNLOCK (mix);
-
- GST_DEBUG_OBJECT (mix,
- "calling propose allocation with query %" GST_PTR_FORMAT,
- decide_query);
-
- /* pass the query to the propose_allocation vmethod if any */
- ret = gst_gl_mixer_propose_allocation (mix, pad, decide_query, query);
-
- if (decide_query)
- gst_query_unref (decide_query);
-
- GST_DEBUG_OBJECT (mix, "ALLOCATION ret %d, %" GST_PTR_FORMAT, ret, query);
- break;
- }
- case GST_QUERY_CONTEXT:
- {
- ret = gst_gl_handle_context_query ((GstElement *) mix, query,
- &mix->display, &mix->other_context);
- if (mix->display)
- gst_gl_display_filter_gl_api (mix->display,
- mix_class->supported_gl_api);
- break;
- }
default:
ret = GST_AGGREGATOR_CLASS (parent_class)->sink_query (agg, bpad, query);
break;
enum
{
PROP_0,
- PROP_CONTEXT
};
static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
);
static gboolean gst_gl_mixer_src_query (GstAggregator * agg, GstQuery * query);
-static GstFlowReturn
-gst_gl_mixer_get_output_buffer (GstVideoAggregator * videoaggregator,
- GstBuffer ** outbuf);
-static gboolean
-gst_gl_mixer_src_activate_mode (GstAggregator * aggregator, GstPadMode mode,
- gboolean active);
+static GstFlowReturn gst_gl_mixer_get_output_buffer (GstVideoAggregator *
+ videoaggregator, GstBuffer ** outbuf);
static gboolean gst_gl_mixer_stop (GstAggregator * agg);
static gboolean gst_gl_mixer_start (GstAggregator * agg);
static void gst_gl_mixer_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
-static gboolean gst_gl_mixer_decide_allocation (GstGLMixer * mix,
+static gboolean gst_gl_mixer_decide_allocation (GstGLBaseMixer * mix,
GstQuery * query);
-static gboolean gst_gl_mixer_set_allocation (GstGLMixer * mix,
- GstBufferPool * pool, GstAllocator * allocator,
- GstAllocationParams * params, GstQuery * query);
static void gst_gl_mixer_finalize (GObject * object);
static void
gst_gl_mixer_class_init (GstGLMixerClass * klass)
{
- GObjectClass *gobject_class;
- GstElementClass *element_class;
-
+ GObjectClass *gobject_class = (GObjectClass *) klass;
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstVideoAggregatorClass *videoaggregator_class =
(GstVideoAggregatorClass *) klass;
GstAggregatorClass *agg_class = (GstAggregatorClass *) klass;
+ GstGLBaseMixerClass *mix_class = GST_GL_BASE_MIXER_CLASS (klass);;
- GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "glmixer", 0, "opengl mixer");
-
- gobject_class = (GObjectClass *) klass;
- element_class = GST_ELEMENT_CLASS (klass);
+ GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "glmixer", 0, "OpenGL mixer");
g_type_class_add_private (klass, sizeof (GstGLMixerPrivate));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_factory));
- element_class->set_context = GST_DEBUG_FUNCPTR (gst_gl_mixer_set_context);
-
agg_class->sinkpads_type = GST_TYPE_GL_MIXER_PAD;
agg_class->sink_query = gst_gl_mixer_sink_query;
agg_class->src_query = gst_gl_mixer_src_query;
- agg_class->src_activate = gst_gl_mixer_src_activate_mode;
agg_class->stop = gst_gl_mixer_stop;
agg_class->start = gst_gl_mixer_start;
videoaggregator_class->negotiated_caps = _negotiated_caps;
videoaggregator_class->find_best_format = NULL;
- g_object_class_install_property (gobject_class, PROP_CONTEXT,
- g_param_spec_object ("context",
- "OpenGL context",
- "Get OpenGL context",
- GST_GL_TYPE_CONTEXT, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
+ mix_class->propose_allocation = gst_gl_mixer_propose_allocation;
+ mix_class->decide_allocation = gst_gl_mixer_decide_allocation;
/* Register the pad class */
g_type_class_ref (GST_TYPE_GL_MIXER_PAD);
static void
gst_gl_mixer_reset (GstGLMixer * mix)
{
- /* clean up collect data */
mix->priv->negotiated = FALSE;
}
{
mix->priv = GST_GL_MIXER_GET_PRIVATE (mix);
mix->array_buffers = 0;
- mix->display = NULL;
mix->fbo = 0;
mix->depthbuffer = 0;
GstGLMixer *mix = GST_GL_MIXER (object);
GstGLMixerPrivate *priv = mix->priv;
- if (mix->other_context) {
- gst_object_unref (mix->other_context);
- mix->other_context = NULL;
- }
-
g_mutex_clear (&priv->gl_resource_lock);
g_cond_clear (&priv->gl_resource_cond);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
-static void
-gst_gl_mixer_set_context (GstElement * element, GstContext * context)
-{
- GstGLMixer *mix = GST_GL_MIXER (element);
- GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix);
-
- gst_gl_handle_set_context (element, context, &mix->display,
- &mix->other_context);
-
- if (mix->display)
- gst_gl_display_filter_gl_api (mix->display, mix_class->supported_gl_api);
-}
-
-static gboolean
-gst_gl_mixer_activate (GstGLMixer * mix, gboolean active)
-{
- GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix);
- gboolean result = TRUE;
-
- if (active) {
- if (!gst_gl_ensure_element_data (mix, &mix->display, &mix->other_context))
- return FALSE;
-
- gst_gl_display_filter_gl_api (mix->display, mix_class->supported_gl_api);
- }
-
- return result;
-}
-
-static gboolean
-gst_gl_mixer_src_activate_mode (GstAggregator * aggregator, GstPadMode mode,
- gboolean active)
-{
- GstGLMixer *mix;
- gboolean result = FALSE;
-
- mix = GST_GL_MIXER (aggregator);
-
- switch (mode) {
- case GST_PAD_MODE_PUSH:
- case GST_PAD_MODE_PULL:
- result = gst_gl_mixer_activate (mix, active);
- break;
- default:
- result = TRUE;
- break;
- }
- return result;
-}
-
static gboolean
gst_gl_mixer_query_caps (GstPad * pad, GstAggregator * agg, GstQuery * query)
{
GstGLMixer *mix = GST_GL_MIXER (agg);
+ GstGLContext *context = GST_GL_BASE_MIXER (mix)->context;
GstCaps *filter, *current_caps, *retcaps, *gl_caps;
gst_query_parse_caps (query, &filter);
gst_gl_mixer_set_caps_features (current_caps,
GST_CAPS_FEATURE_META_GST_VIDEO_GL_TEXTURE_UPLOAD_META));
retcaps =
- gst_gl_download_transform_caps (mix->context, GST_PAD_SINK, current_caps,
+ gst_gl_download_transform_caps (context, GST_PAD_SINK, current_caps,
NULL);
retcaps = gst_caps_merge (gl_caps, retcaps);
gst_caps_unref (current_caps);
gst_gl_mixer_src_query (GstAggregator * agg, GstQuery * query)
{
gboolean res = FALSE;
- GstGLMixer *mix = GST_GL_MIXER (agg);
- GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix);
switch (GST_QUERY_TYPE (query)) {
- case GST_QUERY_CONTEXT:
- {
- res = gst_gl_handle_context_query ((GstElement *) mix, query,
- &mix->display, &mix->other_context);
- if (mix->display)
- gst_gl_display_filter_gl_api (mix->display,
- mix_class->supported_gl_api);
- break;
- }
case GST_QUERY_CAPS:
res = gst_gl_mixer_query_caps (agg->srcpad, agg, query);
break;
GstBuffer ** outbuf)
{
GstGLMixer *mix = GST_GL_MIXER (videoaggregator);
+ GstBufferPool *pool;
+ GstFlowReturn ret;
+
+ pool =
+ gst_gl_base_mixer_get_buffer_pool (GST_GL_BASE_MIXER (videoaggregator));
+
+ if (!pool)
+ return GST_FLOW_NOT_NEGOTIATED;
- if (!mix->priv->pool_active) {
- if (!gst_buffer_pool_set_active (mix->priv->pool, TRUE)) {
+ if (!gst_buffer_pool_is_active (pool)) {
+ if (!gst_buffer_pool_set_active (pool, TRUE)) {
GST_ELEMENT_ERROR (mix, RESOURCE, SETTINGS,
("failed to activate bufferpool"), ("failed to activate bufferpool"));
return GST_FLOW_ERROR;
}
- mix->priv->pool_active = TRUE;
}
- return gst_buffer_pool_acquire_buffer (mix->priv->pool, outbuf, NULL);
+ ret = gst_buffer_pool_acquire_buffer (pool, outbuf, NULL);
+ gst_object_unref (pool);
+
+ return ret;
}
static gboolean
-gst_gl_mixer_decide_allocation (GstGLMixer * mix, GstQuery * query)
+gst_gl_mixer_decide_allocation (GstGLBaseMixer * base_mix, GstQuery * query)
{
+ GstGLMixer *mix = GST_GL_MIXER (base_mix);
GstGLMixerClass *mixer_class = GST_GL_MIXER_GET_CLASS (mix);
+ GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (mix);
+ GstGLContext *context = base_mix->context;
GstBufferPool *pool = NULL;
GstStructure *config;
GstCaps *caps;
guint min, max, size;
gboolean update_pool;
GError *error = NULL;
- guint idx;
guint out_width, out_height;
- GstGLContext *other_context = NULL;
- GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (mix);
- gboolean same_downstream_gl_context = FALSE;
-
- if (!gst_gl_ensure_element_data (mix, &mix->display, &mix->other_context))
- return FALSE;
-
- gst_gl_display_filter_gl_api (mix->display, mixer_class->supported_gl_api);
-
- if (gst_query_find_allocation_meta (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 (upload_meta_params) {
- if (gst_structure_get (upload_meta_params, "gst.gl.GstGLContext",
- GST_GL_TYPE_CONTEXT, &context, NULL) && context) {
- GstGLContext *old = mix->context;
-
- mix->context = context;
- if (old)
- gst_object_unref (old);
- same_downstream_gl_context = TRUE;
- } 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;
- GstGLAPI gl_apis;
-
- GST_DEBUG ("got GL context handle 0x%p with type %s and apis %s",
- handle, type, apis);
-
- platform = gst_gl_platform_from_string (type);
- 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->other_context) {
- if (!other_context) {
- other_context = mix->other_context;
- } else {
- GST_ELEMENT_WARNING (mix, LIBRARY, SETTINGS,
- ("%s", "Cannot share with more than one GL context"),
- ("%s", "Cannot share with more than one GL context"));
- }
- }
-
- if (!mix->context) {
- mix->context = gst_gl_context_new (mix->display);
- if (!gst_gl_context_create (mix->context, other_context, &error))
- goto context_error;
- }
out_width = GST_VIDEO_INFO_WIDTH (&vagg->info);
out_height = GST_VIDEO_INFO_HEIGHT (&vagg->info);
g_mutex_lock (&mix->priv->gl_resource_lock);
mix->priv->gl_resource_ready = FALSE;
if (mix->fbo) {
- gst_gl_context_del_fbo (mix->context, mix->fbo, mix->depthbuffer);
+ gst_gl_context_del_fbo (context, mix->fbo, mix->depthbuffer);
mix->fbo = 0;
mix->depthbuffer = 0;
}
- if (!gst_gl_context_gen_fbo (mix->context, out_width, out_height,
+ if (!gst_gl_context_gen_fbo (context, out_width, out_height,
&mix->fbo, &mix->depthbuffer)) {
g_cond_signal (&mix->priv->gl_resource_cond);
g_mutex_unlock (&mix->priv->gl_resource_lock);
}
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_gl_context_del_texture (context, &mix->out_tex_id);
+ gst_gl_context_gen_texture (context, &mix->out_tex_id,
GST_VIDEO_FORMAT_RGBA, out_width, out_height);
gst_query_parse_allocation (query, &caps, NULL);
+ mix->context = context;
if (mixer_class->set_caps)
mixer_class->set_caps (mix, caps);
update_pool = FALSE;
}
- if (!pool || (!same_downstream_gl_context
- && gst_query_find_allocation_meta (query, GST_GL_SYNC_META_API_TYPE,
- NULL)
- && !gst_buffer_pool_has_option (pool,
- GST_BUFFER_POOL_OPTION_GL_SYNC_META))) {
- /* can't use this pool */
- if (pool)
- gst_object_unref (pool);
- pool = gst_gl_buffer_pool_new (mix->context);
- }
+ if (!pool)
+ pool = gst_gl_buffer_pool_new (context);
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, min, max);
}
}
-/* takes ownership of the pool, allocator and query */
-static gboolean
-gst_gl_mixer_set_allocation (GstGLMixer * mix,
- GstBufferPool * pool, GstAllocator * allocator,
- GstAllocationParams * params, GstQuery * query)
-{
- GstAllocator *oldalloc;
- GstBufferPool *oldpool;
- GstQuery *oldquery;
- GstGLMixerPrivate *priv = mix->priv;
-
- GST_DEBUG ("storing allocation query");
-
- GST_OBJECT_LOCK (mix);
- oldpool = priv->pool;
- priv->pool = pool;
- priv->pool_active = FALSE;
-
- oldalloc = priv->allocator;
- priv->allocator = allocator;
-
- oldquery = priv->query;
- priv->query = query;
-
- if (params)
- priv->params = *params;
- else
- gst_allocation_params_init (&priv->params);
- GST_OBJECT_UNLOCK (mix);
-
- if (oldpool) {
- GST_DEBUG_OBJECT (mix, "deactivating old pool %p", oldpool);
- gst_buffer_pool_set_active (oldpool, FALSE);
- gst_object_unref (oldpool);
- }
- if (oldalloc) {
- gst_object_unref (oldalloc);
- }
- if (oldquery) {
- gst_query_unref (oldquery);
- }
- return TRUE;
-}
-
-static gboolean
-gst_gl_mixer_do_bufferpool (GstGLMixer * mix, GstCaps * outcaps)
-{
- GstQuery *query;
- gboolean result = TRUE;
- GstBufferPool *pool = NULL;
- GstAllocator *allocator;
- GstAllocationParams params;
- GstAggregator *agg = GST_AGGREGATOR (mix);
-
- /* find a pool for the negotiated caps now */
- GST_DEBUG_OBJECT (mix, "doing allocation query");
- query = gst_query_new_allocation (outcaps, TRUE);
- if (!gst_pad_peer_query (agg->srcpad, query)) {
- /* not a problem, just debug a little */
- GST_DEBUG_OBJECT (mix, "peer ALLOCATION query failed");
- }
-
- GST_DEBUG_OBJECT (mix, "calling decide_allocation");
- result = gst_gl_mixer_decide_allocation (mix, query);
-
- GST_DEBUG_OBJECT (mix, "ALLOCATION (%d) params: %" GST_PTR_FORMAT, result,
- query);
-
- if (!result)
- goto no_decide_allocation;
-
- /* we got configuration from our peer or the decide_allocation method,
- * parse them */
- if (gst_query_get_n_allocation_params (query) > 0) {
- gst_query_parse_nth_allocation_param (query, 0, &allocator, ¶ms);
- } else {
- allocator = NULL;
- gst_allocation_params_init (¶ms);
- }
-
- if (gst_query_get_n_allocation_pools (query) > 0)
- gst_query_parse_nth_allocation_pool (query, 0, &pool, NULL, NULL, NULL);
-
- /* now store */
- result = gst_gl_mixer_set_allocation (mix, pool, allocator, ¶ms, query);
-
- return result;
-
- /* Errors */
-no_decide_allocation:
- {
- GST_WARNING_OBJECT (mix, "Failed to decide allocation");
- gst_query_unref (query);
-
- return result;
- }
-}
-
static GstBuffer *
_default_pad_upload_buffer (GstGLMixer * mix, GstGLMixerFrameData * frame,
GstBuffer * buffer)
GstElement *element = GST_ELEMENT (mix);
GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (mix);
GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix);
+ GstGLContext *context = GST_GL_BASE_MIXER (mix)->context;
GstGLMixerPrivate *priv = mix->priv;
gboolean to_download =
gst_caps_features_is_equal (GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY,
"attempting to wrap for download");
if (!mix->download)
- mix->download = gst_gl_download_new (mix->context);
+ mix->download = gst_gl_download_new (context);
gst_gl_download_set_format (mix->download, &out_frame.info);
out_tex = mix->out_tex_id;
return mix_class->process_buffers (mix, mix->array_buffers, outbuf);
}
-
-
static GstFlowReturn
gst_gl_mixer_aggregate_frames (GstVideoAggregator * vagg, GstBuffer * outbuf)
{
gboolean res = FALSE;
GstGLMixer *mix = GST_GL_MIXER (vagg);
GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (vagg);
+ GstGLContext *context = GST_GL_BASE_MIXER (mix)->context;
GstGLSyncMeta *sync_meta;
if (mix_class->process_buffers)
sync_meta = gst_buffer_get_gl_sync_meta (outbuf);
if (sync_meta)
- gst_gl_sync_meta_set_sync_point (sync_meta, mix->context);
+ gst_gl_sync_meta_set_sync_point (sync_meta, context);
return res ? GST_FLOW_OK : GST_FLOW_ERROR;
}
gst_gl_mixer_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
- GstGLMixer *mixer = GST_GL_MIXER (object);
-
switch (prop_id) {
- case PROP_CONTEXT:
- g_value_set_object (value, mixer->context);
- break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
GST_OBJECT_UNLOCK (mix);
- return TRUE;
+ return GST_AGGREGATOR_CLASS (parent_class)->start (agg);
}
static gboolean
{
GstGLMixer *mix = GST_GL_MIXER (agg);
GstGLMixerClass *mixer_class = GST_GL_MIXER_GET_CLASS (mix);
+ GstGLContext *context = GST_GL_BASE_MIXER (mix)->context;
GST_OBJECT_LOCK (agg);
g_ptr_array_free (mix->frames, TRUE);
if (mixer_class->reset)
mixer_class->reset (mix);
if (mix->fbo) {
- gst_gl_context_del_fbo (mix->context, mix->fbo, mix->depthbuffer);
+ gst_gl_context_del_fbo (context, mix->fbo, mix->depthbuffer);
mix->fbo = 0;
mix->depthbuffer = 0;
}
gst_aggregator_iterate_sinkpads (GST_AGGREGATOR (mix), _clean_upload, NULL);
- if (mix->priv->query) {
- gst_query_unref (mix->priv->query);
- mix->priv->query = NULL;
- }
-
- if (mix->priv->pool) {
- gst_object_unref (mix->priv->pool);
- mix->priv->pool = NULL;
- }
-
- if (mix->display) {
- gst_object_unref (mix->display);
- mix->display = NULL;
- }
-
- if (mix->context) {
- gst_object_unref (mix->context);
- mix->context = NULL;
- }
-
gst_gl_mixer_reset (mix);
- return TRUE;
+ return GST_AGGREGATOR_CLASS (parent_class)->stop (agg);
}
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/gl/gl.h>
-#include "gstglmixerpad.h"
+#include "gstglbasemixer.h"
G_BEGIN_DECLS
+typedef struct _GstGLMixer GstGLMixer;
+typedef struct _GstGLMixerClass GstGLMixerClass;
+typedef struct _GstGLMixerPrivate GstGLMixerPrivate;
+typedef struct _GstGLMixerFrameData GstGLMixerFrameData;
+
+#define GST_TYPE_GL_MIXER_PAD (gst_gl_mixer_pad_get_type())
+#define GST_GL_MIXER_PAD(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_MIXER_PAD, GstGLMixerPad))
+#define GST_GL_MIXER_PAD_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_MIXER_PAD, GstGLMixerPadClass))
+#define GST_IS_GL_MIXER_PAD(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_MIXER_PAD))
+#define GST_IS_GL_MIXER_PAD_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_MIXER_PAD))
+#define GST_GL_MIXER_PAD_GET_CLASS(obj) \
+ (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_GL_MIXER_PAD,GstGLMixerPadClass))
+
+typedef struct _GstGLMixerPad GstGLMixerPad;
+typedef struct _GstGLMixerPadClass GstGLMixerPadClass;
+
+/* all information needed for one video stream */
+struct _GstGLMixerPad
+{
+ GstGLBaseMixerPad parent; /* subclass the pad */
+
+ /* <private> */
+ GstGLUpload *upload;
+ GstGLColorConvert *convert;
+ GstBuffer *gl_buffer;
+};
+
+struct _GstGLMixerPadClass
+{
+ GstGLBaseMixerPadClass parent_class;
+
+ GstBuffer * (*upload_buffer) (GstGLMixer * mix, GstGLMixerFrameData * frame, GstBuffer * buffer);
+};
+
+GType gst_gl_mixer_pad_get_type (void);
+
#define GST_TYPE_GL_MIXER (gst_gl_mixer_get_type())
#define GST_GL_MIXER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_MIXER, GstGLMixer))
#define GST_GL_MIXER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_GL_MIXER,GstGLMixerClass))
-typedef struct _GstGLMixer GstGLMixer;
-typedef struct _GstGLMixerClass GstGLMixerClass;
-typedef struct _GstGLMixerPrivate GstGLMixerPrivate;
-typedef struct _GstGLMixerFrameData GstGLMixerFrameData;
-
typedef gboolean (*GstGLMixerSetCaps) (GstGLMixer* mixer,
GstCaps* outcaps);
typedef void (*GstGLMixerReset) (GstGLMixer *mixer);
struct _GstGLMixer
{
- GstVideoAggregator vaggregator;
+ GstGLBaseMixer vaggregator;
- GstGLMixerPrivate *priv;
+ /* FIXME remove */
+ GstGLContext *context;
GPtrArray *array_buffers;
GPtrArray *frames;
GLuint out_tex_id;
GstGLDownload *download;
- GstGLDisplay *display;
- GstGLContext *context, *other_context;
GLuint fbo;
GLuint depthbuffer;
GstCaps *out_caps;
+
+ GstGLMixerPrivate *priv;
};
struct _GstGLMixerClass
{
- GstVideoAggregatorClass parent_class;
+ GstGLBaseMixerClass parent_class;
GstGLAPI supported_gl_api;
GstGLMixerSetCaps set_caps;
#define _GST_GL_VIDEO_MIXER_H_
#include "gstglmixer.h"
-#include "gstglmixerpad.h"
G_BEGIN_DECLS
projects / platform / upstream / gstreamer.git / commitdiff