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videoaggregator: expose converter-config on convert pads

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This in order to allow users control over the conversion
process, for example the scaling method.
This commit is contained in:
Mathieu Duponchelle 2018-05-06 16:44:47 +02:00
parent 049877e5d0
commit 1492fb4ef9
1 changed files with 66 additions and 1 deletions
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67
gst-libs/gst/video/gstvideoaggregator.c
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@ -335,6 +335,12 @@ gst_video_aggregator_pad_set_needs_alpha (GstVideoAggregatorPad * pad,
* GstVideoAggregatorConvertPad implementation *
****************************************/
enum
{
PROP_CONVERT_PAD_0,
PROP_CONVERT_PAD_CONVERTER_CONFIG,
};
struct _GstVideoAggregatorConvertPadPrivate
{
/* Converter, if NULL no conversion is done */
@ -344,6 +350,7 @@ struct _GstVideoAggregatorConvertPadPrivate
GstVideoInfo conversion_info;
GstBuffer *converted_buffer;
GstStructure *converter_config;
gboolean converter_config_changed;
};
@ -359,6 +366,10 @@ gst_video_aggregator_convert_pad_finalize (GObject * o)
gst_video_converter_free (vaggpad->priv->convert);
vaggpad->priv->convert = NULL;
if (vaggpad->priv->converter_config)
gst_structure_free (vaggpad->priv->converter_config);
vaggpad->priv->converter_config = NULL;
G_OBJECT_CLASS (gst_video_aggregator_pad_parent_class)->finalize (o);
}
@ -403,7 +414,8 @@ gst_video_aggregator_convert_pad_prepare_frame (GstVideoAggregatorPad * vpad,
if (!gst_video_info_is_equal (&vpad->info, &pad->priv->conversion_info)) {
pad->priv->convert =
gst_video_converter_new (&vpad->info, &pad->priv->conversion_info,
NULL);
pad->priv->converter_config ? gst_structure_copy (pad->
priv->converter_config) : NULL);
if (!pad->priv->convert) {
GST_WARNING_OBJECT (pad, "No path found for conversion");
return FALSE;
@ -530,6 +542,46 @@ static void
g_free (best_colorimetry);
}
static void
gst_video_aggregator_convert_pad_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstVideoAggregatorConvertPad *pad = GST_VIDEO_AGGREGATOR_CONVERT_PAD (object);
switch (prop_id) {
case PROP_CONVERT_PAD_CONVERTER_CONFIG:
GST_OBJECT_LOCK (pad);
if (pad->priv->converter_config)
g_value_set_boxed (value, pad->priv->converter_config);
GST_OBJECT_UNLOCK (pad);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_video_aggregator_convert_pad_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVideoAggregatorConvertPad *pad = GST_VIDEO_AGGREGATOR_CONVERT_PAD (object);
switch (prop_id) {
case PROP_CONVERT_PAD_CONVERTER_CONFIG:
GST_OBJECT_LOCK (pad);
if (pad->priv->converter_config)
gst_structure_free (pad->priv->converter_config);
pad->priv->converter_config = g_value_dup_boxed (value);
pad->priv->converter_config_changed = TRUE;
GST_OBJECT_UNLOCK (pad);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_video_aggregator_convert_pad_class_init (GstVideoAggregatorConvertPadClass *
klass)
@ -543,6 +595,18 @@ gst_video_aggregator_convert_pad_class_init (GstVideoAggregatorConvertPadClass *
g_type_class_add_private (klass,
sizeof (GstVideoAggregatorConvertPadPrivate));
g_object_class_install_property (gobject_class,
PROP_CONVERT_PAD_CONVERTER_CONFIG, g_param_spec_boxed ("converter-config",
"Converter configuration",
"A GstStructure describing the configuration that should be used "
"when scaling and converting this pad's video frames",
GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gobject_class->get_property =
GST_DEBUG_FUNCPTR (gst_video_aggregator_convert_pad_get_property);
gobject_class->set_property =
GST_DEBUG_FUNCPTR (gst_video_aggregator_convert_pad_set_property);
vaggpadclass->update_conversion_info =
GST_DEBUG_FUNCPTR
(gst_video_aggregator_convert_pad_update_conversion_info_internal);
@ -565,6 +629,7 @@ gst_video_aggregator_convert_pad_init (GstVideoAggregatorConvertPad * vaggpad)
vaggpad->priv->converted_buffer = NULL;
vaggpad->priv->convert = NULL;
vaggpad->priv->converter_config = NULL;
vaggpad->priv->converter_config_changed = FALSE;
}