gstreamer/ges/ges-test-clip.c
Tim-Philipp Müller a7347ca8f7 WIP: ges: fix API export/import and 'inconsistent linkage' on MSVC
Export GES library API in headers when we're building the
library itself, otherwise import the API from the headers.

This fixes linker warnings on Windows when building with MSVC.

Fix up some missing config.h includes when building the lib which
is needed to get the export api define from config.h

Fixes https://gitlab.freedesktop.org/gstreamer/gst-editing-services/issues/42
2018-12-15 00:14:51 +00:00

405 lines
10 KiB
C

/* GStreamer Editing Services
* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
* 2009 Nokia Corporation
*
* 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.
*/
/**
* SECTION:gestestclip
* @title: GESTestClip
* @short_description: Render video and audio test patterns in a GESLayer
*
* Useful for testing purposes.
*
* You can use the ges_asset_request_simple API to create an Asset
* capable of extracting GESTestClip-s
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "ges-internal.h"
#include "ges-test-clip.h"
#include "ges-source-clip.h"
#include "ges-track-element.h"
#include "ges-video-test-source.h"
#include "ges-audio-test-source.h"
#include <string.h>
#define DEFAULT_VOLUME 1.0
#define DEFAULT_VPATTERN GES_VIDEO_TEST_PATTERN_SMPTE
struct _GESTestClipPrivate
{
gboolean mute;
GESVideoTestPattern vpattern;
gdouble freq;
gdouble volume;
};
enum
{
PROP_0,
PROP_MUTE,
PROP_VPATTERN,
PROP_FREQ,
PROP_VOLUME,
};
G_DEFINE_TYPE_WITH_PRIVATE (GESTestClip, ges_test_clip, GES_TYPE_SOURCE_CLIP);
static GESTrackElement
* ges_test_clip_create_track_element (GESClip * clip, GESTrackType type);
static void
ges_test_clip_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
{
GESTestClipPrivate *priv = GES_TEST_CLIP (object)->priv;
switch (property_id) {
case PROP_MUTE:
g_value_set_boolean (value, priv->mute);
break;
case PROP_VPATTERN:
g_value_set_enum (value, priv->vpattern);
break;
case PROP_FREQ:
g_value_set_double (value, priv->freq);
break;
case PROP_VOLUME:
g_value_set_double (value, priv->volume);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ges_test_clip_set_property (GObject * object, guint property_id,
const GValue * value, GParamSpec * pspec)
{
GESTestClip *uriclip = GES_TEST_CLIP (object);
switch (property_id) {
case PROP_MUTE:
ges_test_clip_set_mute (uriclip, g_value_get_boolean (value));
break;
case PROP_VPATTERN:
ges_test_clip_set_vpattern (uriclip, g_value_get_enum (value));
break;
case PROP_FREQ:
ges_test_clip_set_frequency (uriclip, g_value_get_double (value));
break;
case PROP_VOLUME:
ges_test_clip_set_volume (uriclip, g_value_get_double (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
ges_test_clip_class_init (GESTestClipClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GESClipClass *timobj_class = GES_CLIP_CLASS (klass);
object_class->get_property = ges_test_clip_get_property;
object_class->set_property = ges_test_clip_set_property;
/**
* GESTestClip:vpattern:
*
* Video pattern to display in video track elements.
*/
g_object_class_install_property (object_class, PROP_VPATTERN,
g_param_spec_enum ("vpattern", "VPattern",
"Which video pattern to display. See videotestsrc element",
GES_VIDEO_TEST_PATTERN_TYPE,
DEFAULT_VPATTERN, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
/**
* GESTestClip:freq:
*
* The frequency to generate for audio track elements.
*/
g_object_class_install_property (object_class, PROP_FREQ,
g_param_spec_double ("freq", "Audio Frequency",
"The frequency to generate. See audiotestsrc element",
0, 20000, 440, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
/**
* GESTestClip:volume:
*
* The volume for the audio track elements.
*/
g_object_class_install_property (object_class, PROP_VOLUME,
g_param_spec_double ("volume", "Audio Volume",
"The volume of the test audio signal.",
0, 1, DEFAULT_VOLUME, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
/**
* GESTestClip:mute:
*
* Whether the sound will be played or not.
*/
g_object_class_install_property (object_class, PROP_MUTE,
g_param_spec_boolean ("mute", "Mute", "Mute audio track",
FALSE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
timobj_class->create_track_element = ges_test_clip_create_track_element;
}
static void
ges_test_clip_init (GESTestClip * self)
{
self->priv = ges_test_clip_get_instance_private (self);
self->priv->freq = 0;
self->priv->volume = 0;
GES_TIMELINE_ELEMENT (self)->duration = 0;
}
/**
* ges_test_clip_set_mute:
* @self: the #GESTestClip on which to mute or unmute the audio track
* @mute: %TRUE to mute the audio track, %FALSE to unmute it
*
* Sets whether the audio track of this clip is muted or not.
*
*/
void
ges_test_clip_set_mute (GESTestClip * self, gboolean mute)
{
GList *tmp;
GST_DEBUG ("self:%p, mute:%d", self, mute);
self->priv->mute = mute;
/* Go over tracked objects, and update 'active' status on all audio objects */
for (tmp = GES_CONTAINER_CHILDREN (self); tmp; tmp = tmp->next) {
GESTrackElement *trackelement = (GESTrackElement *) tmp->data;
if (ges_track_element_get_track (trackelement)->type ==
GES_TRACK_TYPE_AUDIO)
ges_track_element_set_active (trackelement, !mute);
}
}
/**
* ges_test_clip_set_vpattern:
* @self: the #GESTestClip to set the pattern on
* @vpattern: the #GESVideoTestPattern to use on @self
*
* Sets which video pattern to display on @self.
*
*/
void
ges_test_clip_set_vpattern (GESTestClip * self, GESVideoTestPattern vpattern)
{
GList *tmp;
self->priv->vpattern = vpattern;
for (tmp = GES_CONTAINER_CHILDREN (self); tmp; tmp = tmp->next) {
GESTrackElement *trackelement = (GESTrackElement *) tmp->data;
if (GES_IS_VIDEO_TEST_SOURCE (trackelement))
ges_video_test_source_set_pattern (
(GESVideoTestSource *) trackelement, vpattern);
}
}
/**
* ges_test_clip_set_frequency:
* @self: the #GESTestClip to set the frequency on
* @freq: the frequency you want to use on @self
*
* Sets the frequency to generate. See audiotestsrc element.
*
*/
void
ges_test_clip_set_frequency (GESTestClip * self, gdouble freq)
{
GList *tmp;
self->priv->freq = freq;
for (tmp = GES_CONTAINER_CHILDREN (self); tmp; tmp = tmp->next) {
GESTrackElement *trackelement = (GESTrackElement *) tmp->data;
if (GES_IS_AUDIO_TEST_SOURCE (trackelement))
ges_audio_test_source_set_freq (
(GESAudioTestSource *) trackelement, freq);
}
}
/**
* ges_test_clip_set_volume:
* @self: the #GESTestClip to set the volume on
* @volume: the volume of the audio signal you want to use on @self
*
* Sets the volume of the test audio signal.
*
*/
void
ges_test_clip_set_volume (GESTestClip * self, gdouble volume)
{
GList *tmp;
self->priv->volume = volume;
for (tmp = GES_CONTAINER_CHILDREN (self); tmp; tmp = tmp->next) {
GESTrackElement *trackelement = (GESTrackElement *) tmp->data;
if (GES_IS_AUDIO_TEST_SOURCE (trackelement))
ges_audio_test_source_set_volume (
(GESAudioTestSource *) trackelement, volume);
}
}
/**
* ges_test_clip_get_vpattern:
* @self: a #GESTestClip
*
* Get the #GESVideoTestPattern which is applied on @self.
*
* Returns: The #GESVideoTestPattern which is applied on @self.
*/
GESVideoTestPattern
ges_test_clip_get_vpattern (GESTestClip * self)
{
return self->priv->vpattern;
}
/**
* ges_test_clip_is_muted:
* @self: a #GESTestClip
*
* Let you know if the audio track of @self is muted or not.
*
* Returns: Whether the audio track of @self is muted or not.
*/
gboolean
ges_test_clip_is_muted (GESTestClip * self)
{
return self->priv->mute;
}
/**
* ges_test_clip_get_frequency:
* @self: a #GESTestClip
*
* Get the frequency @self generates.
*
* Returns: The frequency @self generates. See audiotestsrc element.
*/
gdouble
ges_test_clip_get_frequency (GESTestClip * self)
{
return self->priv->freq;
}
/**
* ges_test_clip_get_volume:
* @self: a #GESTestClip
*
* Get the volume of the test audio signal applied on @self.
*
* Returns: The volume of the test audio signal applied on @self.
*/
gdouble
ges_test_clip_get_volume (GESTestClip * self)
{
return self->priv->volume;
}
static GESTrackElement *
ges_test_clip_create_track_element (GESClip * clip, GESTrackType type)
{
GESTestClipPrivate *priv = GES_TEST_CLIP (clip)->priv;
GESTrackElement *res = NULL;
GST_DEBUG ("Creating a GESTrackTestSource for type: %s",
ges_track_type_name (type));
if (type == GES_TRACK_TYPE_VIDEO) {
res = (GESTrackElement *) ges_video_test_source_new ();
ges_video_test_source_set_pattern (
(GESVideoTestSource *) res, priv->vpattern);
} else if (type == GES_TRACK_TYPE_AUDIO) {
res = (GESTrackElement *) ges_audio_test_source_new ();
if (priv->mute)
ges_track_element_set_active (res, FALSE);
ges_audio_test_source_set_freq ((GESAudioTestSource *) res, priv->freq);
ges_audio_test_source_set_volume ((GESAudioTestSource *) res, priv->volume);
}
return res;
}
/**
* ges_test_clip_new:
*
* Creates a new #GESTestClip.
*
* Returns: (transfer floating) (nullable): The newly created #GESTestClip,
* or %NULL if there was an error.
*/
GESTestClip *
ges_test_clip_new (void)
{
GESTestClip *new_clip;
GESAsset *asset = ges_asset_request (GES_TYPE_TEST_CLIP, NULL, NULL);
new_clip = GES_TEST_CLIP (ges_asset_extract (asset, NULL));
gst_object_unref (asset);
return new_clip;
}
/**
* ges_test_clip_new_for_nick:
* @nick: the nickname for which to create the #GESTestClip
*
* Creates a new #GESTestClip for the provided @nick.
*
* Returns: (transfer floating) (nullable): The newly created #GESTestClip,
* or %NULL if there was an error.
*/
GESTestClip *
ges_test_clip_new_for_nick (gchar * nick)
{
GEnumValue *value;
GEnumClass *klass;
GESTestClip *ret = NULL;
klass = G_ENUM_CLASS (g_type_class_ref (GES_VIDEO_TEST_PATTERN_TYPE));
if (!klass)
return NULL;
value = g_enum_get_value_by_nick (klass, nick);
if (value) {
ret = ges_test_clip_new ();
ges_test_clip_set_vpattern (ret, value->value);
}
g_type_class_unref (klass);
return ret;
}