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videoconvert: proxy allocation meta when we can

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Proxy all the metadata APIs in the allocation query.
Remove all metadata that is dependent on the colorspace, copy others.
This commit is contained in:
Wim Taymans 2012-03-01 17:36:08 +01:00
parent 91c587af22
commit dcd277b916
1 changed files with 80 additions and 4 deletions
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84
gst/videoconvert/gstvideoconvert.c
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@ -49,6 +49,12 @@ GST_DEBUG_CATEGORY (videoconvert_debug);
#define GST_CAT_DEFAULT videoconvert_debug
GST_DEBUG_CATEGORY_EXTERN (GST_CAT_PERFORMANCE);
GType gst_video_convert_get_type (void);
static GQuark _colorspace_quark;
#define gst_video_convert_parent_class parent_class
G_DEFINE_TYPE (GstVideoConvert, gst_video_convert, GST_TYPE_VIDEO_FILTER);
enum
{
@ -72,8 +78,6 @@ GST_STATIC_PAD_TEMPLATE ("sink",
GST_STATIC_CAPS (CSP_VIDEO_CAPS)
);
GType gst_video_convert_get_type (void);
static void gst_video_convert_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec);
static void gst_video_convert_get_property (GObject * object,
@ -305,8 +309,74 @@ invalid_palette:
}
}
#define gst_video_convert_parent_class parent_class
G_DEFINE_TYPE (GstVideoConvert, gst_video_convert, GST_TYPE_VIDEO_FILTER);
static gboolean
gst_video_convert_propose_allocation (GstBaseTransform * trans,
GstQuery * decide_query, GstQuery * query)
{
gboolean ret;
guint i, n_metas;
/* let parent handle */
ret = GST_BASE_TRANSFORM_CLASS (parent_class)->propose_allocation (trans,
decide_query, query);
/* error or passthrough, we're done */
if (!ret || decide_query == NULL)
return ret;
/* non-passthrough, copy all metadata, decide_query does not contain the
* metadata anymore that depends on the buffer memory */
n_metas = gst_query_get_n_allocation_metas (decide_query);
for (i = 0; i < n_metas; i++) {
GType api;
api = gst_query_parse_nth_allocation_meta (decide_query, i);
gst_query_add_allocation_meta (query, api);
}
return ret;
}
typedef struct
{
GstBaseTransform *trans;
GstBuffer *outbuf;
GQuark tag;
} CopyMetaData;
static gboolean
foreach_metadata (GstBuffer * inbuf, GstMeta ** meta, gpointer user_data)
{
CopyMetaData *data = user_data;
const GstMetaInfo *info = (*meta)->info;
if (info->transform_func) {
if (gst_meta_api_type_has_tag (info->api, data->tag)) {
/* metadata depends on colorspace. FIXME discard for now until we
* have some transform data for it. */
} else {
GstMetaTransformCopy copy_data = { 0, -1 };
/* simply copy then */
info->transform_func (data->outbuf, *meta, inbuf,
_gst_meta_transform_copy, &copy_data);
}
}
return TRUE;
}
static gboolean
gst_video_convert_copy_metadata (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf)
{
CopyMetaData data;
data.trans = trans;
data.outbuf = outbuf;
data.tag = _colorspace_quark;
gst_buffer_foreach_meta (inbuf, foreach_metadata, &data);
return GST_BASE_TRANSFORM_CLASS (parent_class)->copy_metadata (trans, inbuf,
outbuf);
}
static void
gst_video_convert_finalize (GObject * obj)
@ -347,6 +417,10 @@ gst_video_convert_class_init (GstVideoConvertClass * klass)
GST_DEBUG_FUNCPTR (gst_video_convert_transform_caps);
gstbasetransform_class->fixate_caps =
GST_DEBUG_FUNCPTR (gst_video_convert_fixate_caps);
gstbasetransform_class->propose_allocation =
GST_DEBUG_FUNCPTR (gst_video_convert_propose_allocation);
gstbasetransform_class->copy_metadata =
GST_DEBUG_FUNCPTR (gst_video_convert_copy_metadata);
gstbasetransform_class->passthrough_on_same_caps = TRUE;
@ -428,6 +502,8 @@ plugin_init (GstPlugin * plugin)
GST_DEBUG_CATEGORY_INIT (videoconvert_debug, "videoconvert", 0,
"Colorspace Converter");
_colorspace_quark = g_quark_from_static_string ("colorspace");
return gst_element_register (plugin, "videoconvert",
GST_RANK_NONE, GST_TYPE_VIDEO_CONVERT);
}