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docs: update design docs a little

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Update the design doc with the current state of the videometadata.
This commit is contained in:
Wim Taymans 2011-06-22 18:07:18 +02:00
parent 73983b3ec1
commit 1b381907b5
1 changed files with 15 additions and 14 deletions
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29
docs/design/part-meta.txt
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@ -83,24 +83,25 @@ methods.
#define GST_VIDEO_MAX_PLANES 4 #define GST_VIDEO_MAX_PLANES 4
struct GstMetaVideoPlane {
gsize offset; /* offset in the buffer memory region of the
* first pixel. */
gint stride; /* stride of the image lines. Can be negative when
* the image is upside-down */
};
struct GstMetaVideo { struct GstMetaVideo {
GstMeta meta GstMeta meta;
GstMetaVideoFlags flags GstBuffer *buffer;
guint n_planes; GstVideoFlags flags;
GstVideoPlane plane[GST_VIDEO_MAX_PLANES]; GstVideoFormat format;
guint width;
guint height;
gpointer (*map) (GstMetaVideo *meta, guint plane, gint *stride, guint n_planes;
GstMapflags flags); gsize offset[GST_VIDEO_MAX_PLANES]; /* offset in the buffer memory region of the
gboolean (*unmap) (GstMetaVideo *meta, guint plane, gpointer data); * first pixel. */
gint stride[GST_VIDEO_MAX_PLANES]; /* stride of the image lines. Can be negative when
* the image is upside-down */
gpointer (*map) (GstMetaVideo *meta, guint plane, gint *stride,
GstMapFlags flags);
gboolean (*unmap) (GstMetaVideo *meta, guint plane, gpointer data);
}; };
gpointer gst_meta_video_map (GstMetaVideo *meta, guint plane, gint *stride, gpointer gst_meta_video_map (GstMetaVideo *meta, guint plane, gint *stride,