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gl: add a new glbasemixer class below glmixer

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It deals with propagating the gl display/contexts throughout the
application/pipeline
This commit is contained in:
Matthew Waters 2015-02-11 14:48:45 +11:00
parent ecdc5568c4
commit 45d85a0570
7 changed files with 957 additions and 486 deletions
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4
ext/gl/Makefile.am
View file

@ -2,6 +2,7 @@ plugin_LTLIBRARIES = libgstopengl.la
libgstopengl_la_SOURCES = \
gstopengl.c \
gstglbasemixer.c \
gstglimagesink.c \
gstglfiltercube.c \
gstgleffects.c \
@ -16,13 +17,13 @@ libgstopengl_la_SOURCES = \
gstglfilterapp.c
noinst_HEADERS = \
gstglbasemixer.h \
gstglimagesink.h \
gstglfiltercube.h \
gstgleffects.h \
effects/gstgleffectssources.h \
gstglcolorscale.h \
gstglmixer.h \
gstglmixerpad.h \
gstglvideomixer.h \
gstglfiltershader.h \
gstglfilterapp.h
@ -71,7 +72,6 @@ noinst_HEADERS += \
endif
endif
if HAVE_GRAPHENE
libgstopengl_la_SOURCES += \
gstgltransformation.c \

734
ext/gl/gstglbasemixer.c Normal file
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@ -0,0 +1,734 @@
/* 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, &params);
} else {
allocator = NULL;
gst_allocation_params_init (&params);
}
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, &params, 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;
}

103
ext/gl/gstglbasemixer.h Normal file
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@ -0,0 +1,103 @@
/*
* 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__ */

472
ext/gl/gstglmixer.c
View file

@ -24,16 +24,8 @@
#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
@ -41,10 +33,7 @@
#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);
@ -57,9 +46,6 @@ static void gst_gl_mixer_pad_finalize (GObject * object);
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
@ -72,18 +58,12 @@ struct _GstGLMixerPrivate
{
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)
@ -121,6 +101,7 @@ static void
_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));
@ -128,7 +109,7 @@ _init_upload (GstGLMixer * mix, GstGLMixerPad * 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));
@ -146,7 +127,7 @@ _init_upload (GstGLMixer * mix, GstGLMixerPad * pad)
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);
@ -183,44 +164,40 @@ static gboolean
_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;
@ -228,7 +205,7 @@ gst_gl_mixer_propose_allocation (GstGLMixer * mix, GstGLMixerPad * pad,
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;
@ -245,7 +222,7 @@ gst_gl_mixer_propose_allocation (GstGLMixer * mix, GstGLMixerPad * pad,
}
/* 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);
@ -270,12 +247,6 @@ config_failed:
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
@ -310,15 +281,17 @@ gst_gl_mixer_set_caps_features (const GstCaps * caps,
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);
@ -367,8 +340,6 @@ gst_gl_mixer_sink_query (GstAggregator * agg, GstAggregatorPad * bpad,
{
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);
@ -394,43 +365,6 @@ gst_gl_mixer_sink_query (GstAggregator * agg, GstAggregatorPad * bpad,
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;
@ -454,7 +388,6 @@ enum
enum
{
PROP_0,
PROP_CONTEXT
};
static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
@ -486,12 +419,8 @@ static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink_%u",
);
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);
@ -504,28 +433,22 @@ static void gst_gl_mixer_set_property (GObject * object, guint prop_id,
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));
@ -539,12 +462,9 @@ gst_gl_mixer_class_init (GstGLMixerClass * klass)
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;
@ -553,11 +473,8 @@ gst_gl_mixer_class_init (GstGLMixerClass * klass)
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);
@ -569,7 +486,6 @@ gst_gl_mixer_class_init (GstGLMixerClass * klass)
static void
gst_gl_mixer_reset (GstGLMixer * mix)
{
/* clean up collect data */
mix->priv->negotiated = FALSE;
}
@ -578,7 +494,6 @@ gst_gl_mixer_init (GstGLMixer * mix)
{
mix->priv = GST_GL_MIXER_GET_PRIVATE (mix);
mix->array_buffers = 0;
mix->display = NULL;
mix->fbo = 0;
mix->depthbuffer = 0;
@ -595,70 +510,16 @@ gst_gl_mixer_finalize (GObject * object)
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);
@ -674,7 +535,7 @@ gst_gl_mixer_query_caps (GstPad * pad, GstAggregator * agg, GstQuery * query)
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);
@ -696,19 +557,8 @@ static gboolean
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;
@ -725,94 +575,43 @@ gst_gl_mixer_get_output_buffer (GstVideoAggregator * videoaggregator,
GstBuffer ** outbuf)
{
GstGLMixer *mix = GST_GL_MIXER (videoaggregator);
GstBufferPool *pool;
GstFlowReturn ret;
if (!mix->priv->pool_active) {
if (!gst_buffer_pool_set_active (mix->priv->pool, TRUE)) {
pool =
gst_gl_base_mixer_get_buffer_pool (GST_GL_BASE_MIXER (videoaggregator));
if (!pool)
return GST_FLOW_NOT_NEGOTIATED;
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);
@ -820,12 +619,12 @@ gst_gl_mixer_decide_allocation (GstGLMixer * mix, GstQuery * query)
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);
@ -833,12 +632,13 @@ gst_gl_mixer_decide_allocation (GstGLMixer * mix, GstQuery * query)
}
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);
@ -860,16 +660,8 @@ gst_gl_mixer_decide_allocation (GstGLMixer * mix, GstQuery * query)
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);
@ -899,104 +691,6 @@ context_error:
}
}
/* 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, &params);
} else {
allocator = NULL;
gst_allocation_params_init (&params);
}
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, &params, 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)
@ -1056,6 +750,7 @@ gst_gl_mixer_process_textures (GstGLMixer * mix, GstBuffer * outbuf)
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,
@ -1082,7 +777,7 @@ gst_gl_mixer_process_textures (GstGLMixer * mix, GstBuffer * outbuf)
"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;
@ -1198,14 +893,13 @@ gst_gl_mixer_process_buffers (GstGLMixer * mix, GstBuffer * outbuf)
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)
@ -1215,7 +909,7 @@ gst_gl_mixer_aggregate_frames (GstVideoAggregator * vagg, GstBuffer * outbuf)
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;
}
@ -1224,12 +918,7 @@ static void
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;
@ -1296,7 +985,7 @@ gst_gl_mixer_start (GstAggregator * agg)
GST_OBJECT_UNLOCK (mix);
return TRUE;
return GST_AGGREGATOR_CLASS (parent_class)->start (agg);
}
static gboolean
@ -1304,6 +993,7 @@ gst_gl_mixer_stop (GstAggregator * agg)
{
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);
@ -1315,7 +1005,7 @@ gst_gl_mixer_stop (GstAggregator * agg)
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;
}
@ -1326,27 +1016,7 @@ gst_gl_mixer_stop (GstAggregator * agg)
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);
}

58
ext/gl/gstglmixer.h
View file

@ -24,10 +24,50 @@
#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))
@ -40,11 +80,6 @@ G_BEGIN_DECLS
#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);
@ -55,9 +90,10 @@ typedef gboolean (*GstGLMixerProcessTextures) (GstGLMixer *mix,
struct _GstGLMixer
{
GstVideoAggregator vaggregator;
GstGLBaseMixer vaggregator;
GstGLMixerPrivate *priv;
/* FIXME remove */
GstGLContext *context;
GPtrArray *array_buffers;
GPtrArray *frames;
@ -65,17 +101,17 @@ struct _GstGLMixer
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;

71
ext/gl/gstglmixerpad.h
View file

@ -1,71 +0,0 @@
/*
* 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_MIXER_PAD_H__
#define __GST_GL_MIXER_PAD_H__
#include <gst/gst.h>
#include <gst/video/gstvideoaggregator.h>
#include <gst/gl/gstgldisplay.h>
#include <gst/gl/gstglupload.h>
G_BEGIN_DECLS
struct _GstGLMixer;
struct _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
{
GstVideoAggregatorPad parent; /* subclass the pad */
/* <private> */
GstGLUpload *upload;
GstGLColorConvert *convert;
GstBuffer *gl_buffer;
};
struct _GstGLMixerPadClass
{
GstVideoAggregatorPadClass parent_class;
GstBuffer * (*upload_buffer) (struct _GstGLMixer * mix, struct _GstGLMixerFrameData * frame, GstBuffer * buffer);
};
GType gst_gl_mixer_pad_get_type (void);
G_END_DECLS
#endif /* __GST_GL_MIXER_PAD_H__ */

1
ext/gl/gstglvideomixer.h
View file

@ -22,7 +22,6 @@
#define _GST_GL_VIDEO_MIXER_H_
#include "gstglmixer.h"
#include "gstglmixerpad.h"
G_BEGIN_DECLS