Commit 859f4c3c authored by Mathieu Duponchelle's avatar Mathieu Duponchelle Committed by Thibault Saunier

ges-smart-mixer: first code dump, mainly copy paste from ges-smart-adder.

parent bc4186d9
......@@ -62,6 +62,7 @@ libges_@GST_API_VERSION@_la_SOURCES = \
ges-container.c \
ges-effect-asset.c \
ges-smart-adder.c \
ges-smart-video-mixer.c \
ges-utils.c
libges_@GST_API_VERSION@includedir = $(includedir)/gstreamer-@GST_API_VERSION@/ges/
......@@ -121,6 +122,7 @@ libges_@GST_API_VERSION@include_HEADERS = \
ges-container.h \
ges-effect-asset.h \
ges-smart-adder.h \
ges-smart-video-mixer.h \
ges-utils.h
noinst_HEADERS = \
......
/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4 -*- */
/*
* gst-editing-services
*
* Copyright (C) 2013 Mathieu Duponchelle <mduponchelle1@gmail.com>
* gst-editing-services is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* gst-editing-services 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.";
*/
#include "ges-types.h"
#include "ges-internal.h"
#include "ges-smart-video-mixer.h"
G_DEFINE_TYPE (GESSmartMixer, ges_smart_mixer, GST_TYPE_BIN);
#define GET_LOCK(obj) (&((GESSmartMixer*)(obj))->lock)
#define LOCK(obj) (g_mutex_lock (GET_LOCK(obj)))
#define UNLOCK(obj) (g_mutex_unlock (GET_LOCK(obj)))
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw")
);
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink_%u",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS ("video/x-raw")
);
typedef struct _PadInfos
{
GESSmartMixer *self;
GstPad *mixer_pad;
GstElement *bin;
} PadInfos;
static void
destroy_pad (PadInfos * infos)
{
if (G_LIKELY (infos->bin)) {
gst_element_set_state (infos->bin, GST_STATE_NULL);
gst_element_unlink (infos->bin, infos->self->mixer);
gst_bin_remove (GST_BIN (infos->self), infos->bin);
}
if (infos->mixer_pad)
gst_element_release_request_pad (infos->self->mixer, infos->mixer_pad);
g_slice_free (PadInfos, infos);
}
/****************************************************
* GstElement vmetods *
****************************************************/
static GstPad *
_request_new_pad (GstElement * element, GstPadTemplate * templ,
const gchar * name, const GstCaps * caps)
{
GstPad *videoconvert_srcpad, *videoconvert_sinkpad, *tmpghost;
PadInfos *infos = g_slice_new0 (PadInfos);
GESSmartMixer *self = GES_SMART_MIXER (element);
GstPad *ghost;
GstElement *videoconvert;
infos->mixer_pad = gst_element_request_pad (self->mixer,
gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (self->mixer),
"sink_%u"), NULL, NULL);
g_object_set (G_OBJECT (infos->mixer_pad), "alpha", 0.5, NULL);
if (infos->mixer_pad == NULL) {
GST_WARNING_OBJECT (element, "Could not get any pad from GstMixer");
return NULL;
}
infos->self = self;
infos->bin = gst_bin_new (NULL);
videoconvert = gst_element_factory_make ("videoconvert", NULL);
gst_bin_add (GST_BIN (infos->bin), videoconvert);
videoconvert_sinkpad = gst_element_get_static_pad (videoconvert, "sink");
tmpghost = GST_PAD (gst_ghost_pad_new (NULL, videoconvert_sinkpad));
gst_object_unref (videoconvert_sinkpad);
gst_pad_set_active (tmpghost, TRUE);
gst_element_add_pad (GST_ELEMENT (infos->bin), tmpghost);
gst_bin_add (GST_BIN (self), infos->bin);
ghost = gst_ghost_pad_new (NULL, tmpghost);
gst_pad_set_active (ghost, TRUE);
if (!gst_element_add_pad (GST_ELEMENT (self), ghost))
goto could_not_add;
videoconvert_srcpad = gst_element_get_static_pad (videoconvert, "src");
tmpghost = GST_PAD (gst_ghost_pad_new (NULL, videoconvert_srcpad));
gst_object_unref (videoconvert_srcpad);
gst_pad_set_active (tmpghost, TRUE);
gst_element_add_pad (GST_ELEMENT (infos->bin), tmpghost);
gst_pad_link (tmpghost, infos->mixer_pad);
LOCK (self);
g_hash_table_insert (self->pads_infos, ghost, infos);
UNLOCK (self);
GST_DEBUG_OBJECT (self, "Returning new pad %" GST_PTR_FORMAT, ghost);
return ghost;
could_not_add:
{
GST_ERROR_OBJECT (self, "could not add pad");
destroy_pad (infos);
return NULL;
}
}
static void
_release_pad (GstElement * element, GstPad * pad)
{
GST_DEBUG_OBJECT (element, "Releasing pad %" GST_PTR_FORMAT, pad);
LOCK (element);
g_hash_table_remove (GES_SMART_MIXER (element)->pads_infos, pad);
UNLOCK (element);
}
/****************************************************
* GObject vmethods *
****************************************************/
static void
ges_smart_mixer_finalize (GObject * object)
{
GESSmartMixer *self = GES_SMART_MIXER (object);
g_mutex_clear (&self->lock);
G_OBJECT_CLASS (ges_smart_mixer_parent_class)->finalize (object);
}
static void
ges_smart_mixer_class_init (GESSmartMixerClass * klass)
{
/* GstBinClass *parent_class = GST_BIN_CLASS (klass);
*/
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
/* FIXME Make sure the MixerClass doesn get destroy before ourself */
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_set_static_metadata (element_class, "GES Smart mixer",
"Generic/Audio",
"Use mixer making use of GES informations",
"Thibault Saunier <thibault.saunier@collabora.com>");
element_class->request_new_pad = GST_DEBUG_FUNCPTR (_request_new_pad);
element_class->release_pad = GST_DEBUG_FUNCPTR (_release_pad);
object_class->finalize = ges_smart_mixer_finalize;
}
static void
ges_smart_mixer_init (GESSmartMixer * self)
{
GstPad *pad;
g_mutex_init (&self->lock);
self->mixer = gst_element_factory_make ("videomixer", "smart-mixer-mixer");
g_object_set (self->mixer, "background", 1, NULL);
gst_bin_add (GST_BIN (self), self->mixer);
pad = gst_element_get_static_pad (self->mixer, "src");
self->srcpad = gst_ghost_pad_new ("src", pad);
gst_pad_set_active (self->srcpad, TRUE);
gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
self->pads_infos = g_hash_table_new_full (g_direct_hash, g_direct_equal,
NULL, (GDestroyNotify) destroy_pad);
}
GstElement *
ges_smart_mixer_new (GESTrack * track)
{
GESSmartMixer *self = g_object_new (GES_TYPE_SMART_MIXER, NULL);
self->track = track;
/* FIXME Make mixer smart and let it properly negotiate caps! */
return GST_ELEMENT (self);
}
/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4 -*- */
/*
* gst-editing-services
* Copyright (C) 2013 Mathieu Duponchelle <mduponchelle1@gmail.com>
*
* gst-editing-services is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* gst-editing-services 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.";
*/
#ifndef _GES_SMART_MIXER_H_
#define _GES_SMART_MIXER_H_
#include <glib-object.h>
#include <gst/gst.h>
#include "ges-track.h"
G_BEGIN_DECLS
#define GES_TYPE_SMART_MIXER (ges_smart_mixer_get_type ())
#define GES_SMART_MIXER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GES_TYPE_SMART_MIXER, GESSmartMixer))
#define GES_SMART_MIXER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GES_TYPE_SMART_MIXER, GESSmartMixerClass))
#define GES_IS_SMART_MIXER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GES_TYPE_SMART_MIXER))
#define GES_IS_SMART_MIXER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GES_TYPE_SMART_MIXER))
#define GES_SMART_MIXER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GES_TYPE_SMART_MIXER, GESSmartMixerClass))
typedef struct _GESSmartMixerClass GESSmartMixerClass;
typedef struct _GESSmartMixer GESSmartMixer;
struct _GESSmartMixerClass
{
GstBinClass parent_class;
};
struct _GESSmartMixer
{
GstBin parent_instance;
GHashTable *pads_infos;
GstPad *srcpad;
GstElement *mixer;
GMutex lock;
GstCaps *caps;
GESTrack *track;
};
GType ges_smart_mixer_get_type (void) G_GNUC_CONST;
GstElement* ges_smart_mixer_new (GESTrack *track);
G_END_DECLS
#endif /* _GES_SMART_MIXER_H_ */
......@@ -38,13 +38,20 @@ typedef struct _GESVideoTrackPrivate GESVideoTrackPrivate;
struct _GESVideoTrackClass
{
GESTrackClass parent_class;
/* Padding for API extension */
gpointer _ges_reserved[GES_PADDING];
};
struct _GESVideoTrack
{
GESTrack parent_instance;
/*< private >*/
GESVideoTrackPrivate *priv;
/* Padding for API extension */
gpointer _ges_reserved[GES_PADDING];
};
GType ges_video_track_get_type (void) G_GNUC_CONST;
......
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