/**
* gst_vaapi_surface_new_with_dma_buf_handle:
* @display: a #GstVaapiDisplay
* @fd: the DRM PRIME file descriptor
* @size: the underlying DRM buffer size
* @format: the desired surface format
* @width: the desired surface width in pixels
* @height: the desired surface height in pixels
* @offset: the offsets to each plane
* @stride: the pitches for each plane
*
* Creates a new #GstVaapiSurface with an external DRM PRIME file
* descriptor. The newly created VA surfaces owns the supplied buffer
* handle.
*
* Return value: the newly allocated #GstVaapiSurface object, or %NULL
* if creation from DRM PRIME fd failed, or is not supported
*/
GstVaapiSurface *
gst_vaapi_surface_new_with_dma_buf_handle (GstVaapiDisplay * display, gint fd,
GstVideoInfo * vi)
{
GstVaapiBufferProxy *proxy;
GstVaapiSurface *surface;
proxy = gst_vaapi_buffer_proxy_new ((gintptr) fd,
GST_VAAPI_BUFFER_MEMORY_TYPE_DMA_BUF, GST_VIDEO_INFO_SIZE (vi), NULL,
NULL);
if (!proxy)
return NULL;
surface = gst_vaapi_surface_new_from_buffer_proxy (display, proxy, vi);
gst_vaapi_buffer_proxy_unref (proxy);
return surface;
}
/**
* gst_vaapi_surface_new_with_dma_buf_handle:
* @display: a #GstVaapiDisplay
* @name: the DRM GEM buffer name
* @size: the underlying DRM buffer size
* @format: the desired surface format
* @width: the desired surface width in pixels
* @height: the desired surface height in pixels
* @offset: the offsets to each plane
* @stride: the pitches for each plane
*
* Creates a new #GstVaapiSurface with an external DRM GEM buffer
* name. The newly created VA surfaces owns the supplied buffer
* handle.
*
* Return value: the newly allocated #GstVaapiSurface object, or %NULL
* if creation from DRM PRIME fd failed, or is not supported
*/
GstVaapiSurface *
gst_vaapi_surface_new_with_gem_buf_handle (GstVaapiDisplay * display,
guint32 name, guint size, GstVideoFormat format, guint width, guint height,
gsize offset[GST_VIDEO_MAX_PLANES], gint stride[GST_VIDEO_MAX_PLANES])
{
GstVaapiBufferProxy *proxy;
GstVaapiSurface *surface;
GstVideoInfo vi;
proxy = gst_vaapi_buffer_proxy_new ((guintptr) name,
GST_VAAPI_BUFFER_MEMORY_TYPE_GEM_BUF, size, NULL, NULL);
if (!proxy)
return NULL;
fill_video_info (&vi, format, width, height, offset, stride);
surface = gst_vaapi_surface_new_from_buffer_proxy (display, proxy, &vi);
gst_vaapi_buffer_proxy_unref (proxy);
return surface;
}
GstMemory *
gst_vaapi_dmabuf_memory_new (GstAllocator * allocator, GstVaapiVideoMeta * meta)
{
GstMemory *mem;
GstVaapiDisplay *display;
GstVaapiSurface *surface;
GstVaapiSurfaceProxy *proxy;
GstVaapiBufferProxy *dmabuf_proxy;
gint dmabuf_fd;
const GstVideoInfo *vip;
guint flags;
g_return_val_if_fail (allocator != NULL, NULL);
g_return_val_if_fail (meta != NULL, NULL);
vip = gst_allocator_get_vaapi_video_info (allocator, &flags);
if (!vip)
return NULL;
display = gst_vaapi_video_meta_get_display (meta);
if (!meta)
return NULL;
surface = gst_vaapi_surface_new_full (display, vip, flags);
if (!surface)
goto error_create_surface;
proxy = gst_vaapi_surface_proxy_new (surface);
if (!proxy)
goto error_create_surface_proxy;
dmabuf_proxy = gst_vaapi_surface_get_dma_buf_handle (surface);
gst_vaapi_object_unref (surface);
if (!dmabuf_proxy)
goto error_create_dmabuf_proxy;
gst_vaapi_video_meta_set_surface_proxy (meta, proxy);
gst_vaapi_surface_proxy_unref (proxy);
dmabuf_fd = gst_vaapi_buffer_proxy_get_handle (dmabuf_proxy);
if (dmabuf_fd < 0 || (dmabuf_fd = dup (dmabuf_fd)) < 0)
goto error_create_dmabuf_handle;
mem = gst_dmabuf_allocator_alloc (allocator, dmabuf_fd,
gst_vaapi_buffer_proxy_get_size (dmabuf_proxy));
if (!mem)
goto error_create_dmabuf_memory;
gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (mem),
GST_VAAPI_BUFFER_PROXY_QUARK, dmabuf_proxy,
(GDestroyNotify) gst_vaapi_buffer_proxy_unref);
return mem;
/* ERRORS */
error_create_surface:
{
GST_ERROR ("failed to create VA surface (format:%s size:%ux%u)",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (vip)),
GST_VIDEO_INFO_WIDTH (vip), GST_VIDEO_INFO_HEIGHT (vip));
return NULL;
}
error_create_surface_proxy:
{
GST_ERROR ("failed to create VA surface proxy");
gst_vaapi_object_unref (surface);
return NULL;
}
error_create_dmabuf_proxy:
{
GST_ERROR ("failed to export VA surface to DMABUF");
gst_vaapi_surface_proxy_unref (proxy);
return NULL;
}
error_create_dmabuf_handle:
{
GST_ERROR ("failed to duplicate DMABUF handle");
gst_vaapi_buffer_proxy_unref (dmabuf_proxy);
return NULL;
}
error_create_dmabuf_memory:
{
GST_ERROR ("failed to create DMABUF memory");
gst_vaapi_buffer_proxy_unref (dmabuf_proxy);
return NULL;
}
}
