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plugins: add helper functions to set the render rectangle.

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Some video clips may have a clipping region that needs to propogate to
the renderer. These helper functions make it possible to attach that
clipping region, as a GstVaapiRectangle, the the video meta associated
with the buffer.

Signed-off-by: Sreerenj Balachandran <sreerenj.balachandran@intel.com>
signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
This commit is contained in:
Sreerenj Balachandran 2013-02-15 18:24:24 +02:00 committed by Gwenole Beauchesne
parent eb00f6d101
commit dbb58f4152
2 changed files with 52 additions and 0 deletions
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43
gst/vaapi/gstvaapivideometa.c
View file

@ -46,6 +46,8 @@ struct _GstVaapiVideoMeta {
GstVaapiSurfaceProxy *proxy;
GFunc converter;
guint render_flags;
GstVaapiRectangle render_rect;
guint has_render_rect : 1;
};
static inline void
@ -158,6 +160,7 @@ gst_vaapi_video_meta_init(GstVaapiVideoMeta *meta)
meta->proxy = NULL;
meta->converter = NULL;
meta->render_flags = 0;
meta->has_render_rect = FALSE;
}
static inline GstVaapiVideoMeta *
@ -229,6 +232,10 @@ gst_vaapi_video_meta_copy(GstVaapiVideoMeta *meta)
gst_vaapi_surface_proxy_ref(meta->proxy) : NULL;
copy->converter = meta->converter;
copy->render_flags = meta->render_flags;
copy->has_render_rect = meta->has_render_rect;
if (copy->has_render_rect)
copy->render_rect = meta->render_rect;
return copy;
}
@ -708,6 +715,42 @@ gst_vaapi_video_meta_set_render_flags(GstVaapiVideoMeta *meta, guint flags)
meta->render_flags = flags;
}
/**
* gst_vaapi_video_meta_get_render_rect:
* @meta: a #GstVaapiVideoMeta
*
* Retrieves the render rectangle bound to the @meta
*
* Return value: render rectangle associated with the video meta.
*/
const GstVaapiRectangle *
gst_vaapi_video_meta_get_render_rect(GstVaapiVideoMeta *meta)
{
g_return_val_if_fail(GST_VAAPI_IS_VIDEO_META(meta), NULL);
if (!meta->has_render_rect)
return NULL;
return &meta->render_rect;
}
/**
* gst_vaapi_video_meta_set_render_rect:
* @meta: a #GstVaapiVideoMeta
* @rect: a #GstVaapiRectangle
*
* Sets the render rectangle @rect to the @meta.
*/
void
gst_vaapi_video_meta_set_render_rect(GstVaapiVideoMeta *meta,
const GstVaapiRectangle *rect)
{
g_return_if_fail(GST_VAAPI_IS_VIDEO_META(meta));
meta->has_render_rect = rect != NULL;
if (meta->has_render_rect)
meta->render_rect = *rect;
}
#if GST_CHECK_VERSION(1,0,0)
#define GST_VAAPI_VIDEO_META_HOLDER(meta) \

9
gst/vaapi/gstvaapivideometa.h
View file

@ -135,6 +135,15 @@ G_GNUC_INTERNAL
void
gst_vaapi_video_meta_set_render_flags(GstVaapiVideoMeta *meta, guint flags);
G_GNUC_INTERNAL
const GstVaapiRectangle *
gst_vaapi_video_meta_get_render_rect(GstVaapiVideoMeta *meta);
G_GNUC_INTERNAL
void
gst_vaapi_video_meta_set_render_rect(GstVaapiVideoMeta *meta,
const GstVaapiRectangle *rect);
G_GNUC_INTERNAL
GstVaapiVideoMeta *
gst_buffer_get_vaapi_video_meta(GstBuffer *buffer);