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factor encoder-finding code into separate function

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Brandon Lewis 2010-07-15 19:12:53 +02:00 committed by Edward Hervey
parent f487fe3fb8
commit 0a548ffad9
1 changed files with 58 additions and 38 deletions
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96
ges/ges-screenshot.c
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@ -37,6 +37,8 @@ static gboolean
create_element (const gchar * factory_name, GstElement ** element, create_element (const gchar * factory_name, GstElement ** element,
GError ** err); GError ** err);
static GstElement *get_encoder (GstCaps * caps);
GstBuffer * GstBuffer *
gst_play_sink_convert_frame (GstElement * playsink, GstCaps * caps) gst_play_sink_convert_frame (GstElement * playsink, GstCaps * caps)
{ {
@ -73,6 +75,61 @@ create_element (const gchar * factory_name, GstElement ** element,
return FALSE; return FALSE;
} }
GstElement *
get_encoder (GstCaps * caps)
{
GValueArray *encoders = NULL;
GValueArray *filtered = NULL;
GValue *factory_value = NULL;
GstElementFactory *factory = NULL;
GstElement *encoder;
encoders =
gst_factory_list_get_elements (GST_FACTORY_LIST_ENCODER |
GST_FACTORY_LIST_IMAGE, GST_RANK_NONE);
GST_INFO ("got factory list %p", encoders);
gst_factory_list_debug (encoders);
if (!(encoders && encoders->n_values))
goto fail;
filtered = gst_factory_list_filter (encoders, caps, GST_PAD_SRC, FALSE);
GST_INFO ("got filtered list %p", filtered);
gst_factory_list_debug (filtered);
if (!(filtered && filtered->n_values))
goto fail;
factory_value = g_value_array_get_nth (filtered, 0);
factory = (GstElementFactory *) g_value_get_object (factory_value);
GST_INFO ("got factory %p", factory);
if (!factory)
goto fail;
encoder = gst_element_factory_create (factory, NULL);
GST_INFO ("created encoder element %p, %s", encoder,
gst_element_get_name (encoder));
if (!encoder)
goto fail;
g_value_array_free (filtered);
g_value_array_free (encoders);
gst_object_unref (factory);
return encoder;
fail:
if (encoders)
g_value_array_free (encoders);
if (filtered)
g_value_array_free (filtered);
if (factory)
gst_object_unref (factory);
return NULL;
}
/* takes ownership of the input buffer */ /* takes ownership of the input buffer */
GstBuffer * GstBuffer *
gst_play_frame_conv_convert (GstBuffer * buf, GstCaps * to_caps) gst_play_frame_conv_convert (GstBuffer * buf, GstCaps * to_caps)
@ -84,41 +141,8 @@ gst_play_frame_conv_convert (GstBuffer * buf, GstCaps * to_caps)
GstBus *bus; GstBus *bus;
GstCaps *from_caps; GstCaps *from_caps;
GstFlowReturn ret; GstFlowReturn ret;
GValueArray *encoders = NULL;
GValueArray *filtered = NULL;
GValue *factory_value = NULL;
GstElementFactory *factory = NULL;
encoders =
gst_factory_list_get_elements (GST_FACTORY_LIST_ENCODER |
GST_FACTORY_LIST_IMAGE, GST_RANK_NONE);
GST_INFO ("got factory list %p", encoders);
gst_factory_list_debug (encoders);
if (!(encoders && encoders->n_values))
goto no_encoder;
filtered = gst_factory_list_filter (encoders, to_caps, GST_PAD_SRC, FALSE);
GST_INFO ("got filtered list %p", filtered);
gst_factory_list_debug (filtered);
if (!(filtered && filtered->n_values))
goto no_encoder;
factory_value = g_value_array_get_nth (filtered, 0);
factory = (GstElementFactory *) g_value_get_object (factory_value);
GST_INFO ("got factory %p", factory);
if (!factory)
goto no_encoder;
g_value_array_free (filtered);
g_value_array_free (encoders);
encoder = gst_element_factory_create (factory, NULL);
GST_INFO ("created encoder element %p, %s", encoder,
gst_element_get_name (encoder));
encoder = get_encoder (to_caps);
if (!encoder) if (!encoder)
goto no_encoder; goto no_encoder;
@ -226,10 +250,6 @@ gst_play_frame_conv_convert (GstBuffer * buf, GstCaps * to_caps)
no_encoder: no_encoder:
{ {
g_warning ("could not find an encoder for provided caps"); g_warning ("could not find an encoder for provided caps");
if (encoders)
g_value_array_free (encoders);
if (filtered)
g_value_array_free (encoders);
return NULL; return NULL;
} }
no_elements: no_elements: