static gboolean
plugin_bind_dma_to_vaapi_buffer (GstVaapiPluginBase * plugin,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstVideoInfo *const vip = &plugin->sinkpad_info;
GstVaapiVideoMeta *meta;
GstVaapiSurface *surface;
GstVaapiSurfaceProxy *proxy;
gint fd;
fd = gst_dmabuf_memory_get_fd (gst_buffer_peek_memory (inbuf, 0));
if (fd < 0)
return FALSE;
if (!plugin_update_sinkpad_info_from_buffer (plugin, inbuf))
goto error_update_sinkpad_info;
meta = gst_buffer_get_vaapi_video_meta (outbuf);
g_return_val_if_fail (meta != NULL, FALSE);
/* Check for a VASurface cached in the buffer */
surface = _get_cached_surface (inbuf);
if (!surface) {
/* otherwise create one and cache it */
surface =
gst_vaapi_surface_new_with_dma_buf_handle (plugin->display, fd, vip);
if (!surface)
goto error_create_surface;
_set_cached_surface (inbuf, surface);
}
proxy = gst_vaapi_surface_proxy_new (surface);
if (!proxy)
goto error_create_proxy;
gst_vaapi_video_meta_set_surface_proxy (meta, proxy);
gst_vaapi_surface_proxy_unref (proxy);
gst_buffer_add_parent_buffer_meta (outbuf, inbuf);
return TRUE;
/* ERRORS */
error_update_sinkpad_info:
{
GST_ERROR_OBJECT (plugin,
"failed to update sink pad video info from video meta");
return FALSE;
}
error_create_surface:
{
GST_ERROR_OBJECT (plugin,
"failed to create VA surface from dma_buf handle");
return FALSE;
}
error_create_proxy:
{
GST_ERROR_OBJECT (plugin,
"failed to create VA surface proxy from wrapped VA surface");
return FALSE;
}
}
static gboolean
plugin_bind_dma_to_vaapi_buffer (GstVaapiPluginBase * plugin,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstVideoInfo *const vip = &plugin->sinkpad_info;
GstVaapiVideoMeta *meta;
GstVaapiSurface *surface;
GstVaapiSurfaceProxy *proxy;
gint fd;
fd = gst_dmabuf_memory_get_fd (gst_buffer_peek_memory (inbuf, 0));
if (fd < 0)
return FALSE;
if (!plugin_update_sinkpad_info_from_buffer (plugin, inbuf))
goto error_update_sinkpad_info;
meta = gst_buffer_get_vaapi_video_meta (outbuf);
g_return_val_if_fail (meta != NULL, FALSE);
surface = gst_vaapi_surface_new_with_dma_buf_handle (plugin->display, fd,
GST_VIDEO_INFO_SIZE (vip), GST_VIDEO_INFO_FORMAT (vip),
GST_VIDEO_INFO_WIDTH (vip), GST_VIDEO_INFO_HEIGHT (vip),
vip->offset, vip->stride);
if (!surface)
goto error_create_surface;
proxy = gst_vaapi_surface_proxy_new (surface);
gst_vaapi_object_unref (surface);
if (!proxy)
goto error_create_proxy;
gst_vaapi_surface_proxy_set_destroy_notify (proxy,
(GDestroyNotify) gst_buffer_unref, (gpointer) gst_buffer_ref (inbuf));
gst_vaapi_video_meta_set_surface_proxy (meta, proxy);
gst_vaapi_surface_proxy_unref (proxy);
return TRUE;
/* ERRORS */
error_update_sinkpad_info:
GST_ERROR ("failed to update sink pad video info from video meta");
return FALSE;
error_create_surface:
GST_ERROR ("failed to create VA surface from dma_buf handle");
return FALSE;
error_create_proxy:
GST_ERROR ("failed to create VA surface proxy from wrapped VA surface");
return FALSE;
}
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;
}
}
