mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-01-29 18:48:44 +00:00
Code Issues 1 Projects Releases Wiki Activity

v4l: use buffer private data for extra buffer info

Browse source 
Since we can't subclass anymore, use the owber_priv pointer for storing extra
info for the buffer.
This commit is contained in:
Wim Taymans 2011-02-24 12:18:43 +01:00
parent e78903e662
commit fc06cf80c9
1 changed files with 19 additions and 67 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

86
sys/v4l/v4lsrc_calls.c
View file

@ -616,78 +616,25 @@ gst_v4lsrc_get_fps_list (GstV4lSrc * v4lsrc)
}
}
#define GST_TYPE_V4LSRC_BUFFER (gst_v4lsrc_buffer_get_type())
#define GST_IS_V4LSRC_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_V4LSRC_BUFFER))
#define GST_V4LSRC_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_V4LSRC_BUFFER, GstV4lSrcBuffer))
#define GET_V4LSRC_DATA(buf) ((GstV4lSrcData *) (GST_BUFFER_CAST(buf)->owner_priv))
typedef struct _GstV4lSrcBuffer
typedef struct _GstV4lSrcData
{
GstBuffer buffer;
GstV4lSrc *v4lsrc;
gint num;
} GstV4lSrcBuffer;
static void gst_v4lsrc_buffer_class_init (gpointer g_class,
gpointer class_data);
static void gst_v4lsrc_buffer_init (GTypeInstance * instance, gpointer g_class);
static void gst_v4lsrc_buffer_finalize (GstV4lSrcBuffer * v4lsrc_buffer);
static GstBufferClass *v4lbuffer_parent_class = NULL;
static GType
gst_v4lsrc_buffer_get_type (void)
{
static GType _gst_v4lsrc_buffer_type;
if (G_UNLIKELY (_gst_v4lsrc_buffer_type == 0)) {
static const GTypeInfo v4lsrc_buffer_info = {
sizeof (GstBufferClass),
NULL,
NULL,
gst_v4lsrc_buffer_class_init,
NULL,
NULL,
sizeof (GstV4lSrcBuffer),
0,
gst_v4lsrc_buffer_init,
NULL
};
_gst_v4lsrc_buffer_type = g_type_register_static (GST_TYPE_BUFFER,
"GstV4lSrcBuffer", &v4lsrc_buffer_info, 0);
}
return _gst_v4lsrc_buffer_type;
}
} GstV4lSrcData;
static void
gst_v4lsrc_buffer_class_init (gpointer g_class, gpointer class_data)
gst_v4lsrc_buffer_dispose (GstBuffer * buffer)
{
GstMiniObjectClass *mini_object_class = GST_MINI_OBJECT_CLASS (g_class);
v4lbuffer_parent_class = g_type_class_peek_parent (g_class);
mini_object_class->finalize = (GstMiniObjectFinalizeFunction)
gst_v4lsrc_buffer_finalize;
}
static void
gst_v4lsrc_buffer_init (GTypeInstance * instance, gpointer g_class)
{
}
static void
gst_v4lsrc_buffer_finalize (GstV4lSrcBuffer * v4lsrc_buffer)
{
GstMiniObjectClass *miniobject_class;
GstV4lSrcData *data = GET_V4LSRC_DATA (buffer);
GstV4lSrc *v4lsrc;
gint num;
v4lsrc = v4lsrc_buffer->v4lsrc;
num = v4lsrc_buffer->num;
v4lsrc = data->v4lsrc;
num = data->num;
GST_LOG_OBJECT (v4lsrc, "freeing buffer %p for frame %d", v4lsrc_buffer, num);
GST_LOG_OBJECT (v4lsrc, "freeing buffer %p for frame %d", buffer, num);
/* only requeue if we still have an mmap buffer */
if (GST_V4LELEMENT (v4lsrc)->buffer) {
@ -695,16 +642,17 @@ gst_v4lsrc_buffer_finalize (GstV4lSrcBuffer * v4lsrc_buffer)
gst_v4lsrc_requeue_frame (v4lsrc, num);
}
/* free data */
gst_object_unref (v4lsrc);
miniobject_class = (GstMiniObjectClass *) v4lbuffer_parent_class;
miniobject_class->finalize (GST_MINI_OBJECT_CAST (v4lsrc_buffer));
g_slice_free (GstV4lSrcData, data);
buffer->owner_priv = NULL;
}
/* Create a V4lSrc buffer from our mmap'd data area */
GstBuffer *
gst_v4lsrc_buffer_new (GstV4lSrc * v4lsrc, gint num)
{
GstV4lSrcData *data;
GstClockTime duration, timestamp, latency;
GstBuffer *buf;
GstClock *clock;
@ -715,10 +663,14 @@ gst_v4lsrc_buffer_new (GstV4lSrc * v4lsrc, gint num)
if (!(gst_v4lsrc_get_fps (v4lsrc, &fps_n, &fps_d)))
return NULL;
buf = (GstBuffer *) gst_mini_object_new (GST_TYPE_V4LSRC_BUFFER);
buf = gst_buffer_new ();
data = g_slice_new (GstV4lSrcData);
buf->owner_priv = data;
GST_MINI_OBJECT_CAST (buf)->dispose =
(GstMiniObjectDisposeFunction) gst_v4lsrc_buffer_dispose;
GST_V4LSRC_BUFFER (buf)->num = num;
GST_V4LSRC_BUFFER (buf)->v4lsrc = gst_object_ref (v4lsrc);
data->num = num;
data->v4lsrc = gst_object_ref (v4lsrc);
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_READONLY);
GST_BUFFER_DATA (buf) = gst_v4lsrc_get_buffer (v4lsrc, num);