diff options
Diffstat (limited to 'common/recipes-multimedia/gstreamer/gst-plugins-good/0006-videocrop-send-a-query-whether-the-rowstride-capabil.patch')
| -rw-r--r-- | common/recipes-multimedia/gstreamer/gst-plugins-good/0006-videocrop-send-a-query-whether-the-rowstride-capabil.patch | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/common/recipes-multimedia/gstreamer/gst-plugins-good/0006-videocrop-send-a-query-whether-the-rowstride-capabil.patch b/common/recipes-multimedia/gstreamer/gst-plugins-good/0006-videocrop-send-a-query-whether-the-rowstride-capabil.patch new file mode 100644 index 0000000..7058544 --- /dev/null +++ b/common/recipes-multimedia/gstreamer/gst-plugins-good/0006-videocrop-send-a-query-whether-the-rowstride-capabil.patch @@ -0,0 +1,105 @@ +From 39bb299bd638b78fdf8c4054bcc90f9f915d7ff8 Mon Sep 17 00:00:00 2001 +From: Kazunori Kobayashi <kkobayas@igel.co.jp> +Date: Thu, 10 May 2012 10:46:20 +0900 +Subject: [PATCH 06/31] videocrop: send a query whether the rowstride + capability is supported + +This patch sends a query which asks downstream plugins whether +can handle the rowstride capability. +gst_video_crop_start() can be invoked when the pad is enabled. +The query is issued by gst_video_crop_start() once at initialization. + +This patch is preliminary for the zero-copy cropping. +--- + gst/videocrop/gstvideocrop.c | 38 ++++++++++++++++++++++++++++++++++++++ + gst/videocrop/gstvideocrop.h | 4 ++++ + 2 files changed, 42 insertions(+) + +diff --git a/gst/videocrop/gstvideocrop.c b/gst/videocrop/gstvideocrop.c +index 1f09f8d..b0c3a68 100644 +--- a/gst/videocrop/gstvideocrop.c ++++ b/gst/videocrop/gstvideocrop.c +@@ -136,6 +136,7 @@ static gboolean gst_video_crop_set_caps (GstBaseTransform * trans, + GstCaps * in_caps, GstCaps * outcaps); + static gboolean gst_video_crop_src_event (GstBaseTransform * trans, + GstEvent * event); ++static gboolean gst_video_crop_start (GstBaseTransform * trans); + + static void + gst_video_crop_base_init (gpointer g_class) +@@ -228,6 +229,7 @@ gst_video_crop_class_init (GstVideoCropClass * klass) + basetransform_class->set_caps = GST_DEBUG_FUNCPTR (gst_video_crop_set_caps); + basetransform_class->get_unit_size = + GST_DEBUG_FUNCPTR (gst_video_crop_get_unit_size); ++ basetransform_class->start = GST_DEBUG_FUNCPTR (gst_video_crop_start); + + basetransform_class->passthrough_on_same_caps = FALSE; + basetransform_class->src_event = GST_DEBUG_FUNCPTR (gst_video_crop_src_event); +@@ -240,6 +242,10 @@ gst_video_crop_init (GstVideoCrop * vcrop, GstVideoCropClass * klass) + vcrop->crop_left = 0; + vcrop->crop_top = 0; + vcrop->crop_bottom = 0; ++ ++ /* register query type for rowstride */ ++ vcrop->query_type_stride = gst_query_type_register ("stride-supported", ++ "whether dealing with rowstride as a capability or not"); + } + + static gboolean +@@ -669,6 +675,38 @@ cropping_too_much: + } + } + ++static gboolean ++gst_video_crop_query_stride_supported (GstVideoCrop * vcrop) ++{ ++ gboolean result = FALSE; ++ GstPad *peer = gst_pad_get_peer (GST_BASE_TRANSFORM (vcrop)->srcpad); ++ GstStructure *structure; ++ GstQuery *query; ++ ++ structure = gst_structure_empty_new ("GstQueryStrideSupported"); ++ gst_structure_set (structure, "stride-supported", G_TYPE_BOOLEAN, FALSE, ++ NULL); ++ ++ query = gst_query_new_application (vcrop->query_type_stride, structure); ++ if (gst_pad_query (peer, query)) ++ gst_structure_get_boolean (structure, "stride-supported", &result); ++ ++ gst_query_unref (query); ++ gst_object_unref (peer); ++ ++ return result; ++} ++ ++static gboolean ++gst_video_crop_start (GstBaseTransform * trans) ++{ ++ GstVideoCrop *vcrop = GST_VIDEO_CROP (trans); ++ ++ vcrop->stride_supported = gst_video_crop_query_stride_supported (vcrop); ++ ++ return TRUE; ++} ++ + static void + gst_video_crop_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) +diff --git a/gst/videocrop/gstvideocrop.h b/gst/videocrop/gstvideocrop.h +index f05649d..5cfe03e 100644 +--- a/gst/videocrop/gstvideocrop.h ++++ b/gst/videocrop/gstvideocrop.h +@@ -76,6 +76,10 @@ struct _GstVideoCrop + + GstVideoCropImageDetails in; /* details of input image */ + GstVideoCropImageDetails out; /* details of output image */ ++ ++ /* query for rowstride */ ++ GstQueryType query_type_stride; ++ gboolean stride_supported; + }; + + struct _GstVideoCropClass +-- +1.7.9.5 + |