* gstvaapivideomemory.c - Gstreamer/VA video memory
*
* Copyright (C) 2013 Intel Corporation
+ * Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
/* --- GstVaapiVideoMemory --- */
/* ------------------------------------------------------------------------ */
+static guchar *
+get_image_data(GstVaapiImage *image)
+{
+ guchar *data;
+ VAImage va_image;
+
+ data = gst_vaapi_image_get_plane(image, 0);
+ if (!data || !gst_vaapi_image_get_image(image, &va_image))
+ return NULL;
+
+ data -= va_image.offsets[0];
+ return data;
+}
+
static GstVaapiImage *
new_image(GstVaapiDisplay *display, const GstVideoInfo *vip)
{
GST_WARNING("failed to derive image, fallbacking to copy");
mem->use_direct_rendering = FALSE;
}
+ else if (gst_vaapi_surface_get_format(mem->surface) !=
+ GST_VIDEO_INFO_FORMAT(mem->image_info)) {
+ gst_vaapi_object_replace(&mem->image, NULL);
+ mem->use_direct_rendering = FALSE;
+ }
}
if (!mem->image) {
return FALSE;
gst_vaapi_video_meta_set_surface_proxy(mem->meta, mem->proxy);
}
- mem->surface = GST_VAAPI_SURFACE_PROXY_SURFACE(mem->proxy);
}
- g_return_val_if_fail(mem->surface != NULL, FALSE);
- return TRUE;
+ mem->surface = GST_VAAPI_SURFACE_PROXY_SURFACE(mem->proxy);
+ return mem->surface != NULL;
}
gboolean
GstMapInfo *info, gpointer *data, gint *stride, GstMapFlags flags)
{
GstVaapiVideoMemory * const mem =
- GST_VAAPI_VIDEO_MEMORY_CAST(gst_buffer_get_memory(meta->buffer, 0));
+ GST_VAAPI_VIDEO_MEMORY_CAST(gst_buffer_peek_memory(meta->buffer, 0));
g_return_val_if_fail(mem, FALSE);
g_return_val_if_fail(GST_VAAPI_IS_VIDEO_ALLOCATOR(mem->parent_instance.
goto error_ensure_image;
// Check that we can actually map the surface, or image
- if ((flags & GST_MAP_READWRITE) != GST_MAP_WRITE &&
+ if ((flags & GST_MAP_READWRITE) == GST_MAP_READWRITE &&
!mem->use_direct_rendering)
goto error_unsupported_map;
+ // Load VA image from surface
+ if ((flags & GST_MAP_READ) && !mem->use_direct_rendering)
+ gst_vaapi_surface_get_image(mem->surface, mem->image);
+
if (!gst_vaapi_image_map(mem->image))
goto error_map_image;
mem->map_type = GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_PLANAR;
GstMapInfo *info)
{
GstVaapiVideoMemory * const mem =
- GST_VAAPI_VIDEO_MEMORY_CAST(gst_buffer_get_memory(meta->buffer, 0));
+ GST_VAAPI_VIDEO_MEMORY_CAST(gst_buffer_peek_memory(meta->buffer, 0));
g_return_val_if_fail(mem, FALSE);
g_return_val_if_fail(GST_VAAPI_IS_VIDEO_ALLOCATOR(mem->parent_instance.
static gpointer
gst_vaapi_video_memory_map(GstVaapiVideoMemory *mem, gsize maxsize, guint flags)
{
- if (mem->map_type &&
- mem->map_type != GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_SURFACE)
- goto error_incompatible_map;
+ gpointer data;
if (mem->map_count == 0) {
- gst_vaapi_surface_proxy_replace(&mem->proxy,
- gst_vaapi_video_meta_get_surface_proxy(mem->meta));
+ switch (flags & GST_MAP_READWRITE) {
+ case 0:
+ // No flags set: return a GstVaapiSurfaceProxy
+ gst_vaapi_surface_proxy_replace(&mem->proxy,
+ gst_vaapi_video_meta_get_surface_proxy(mem->meta));
+ if (!mem->proxy)
+ goto error_no_surface_proxy;
+ mem->map_type = GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_SURFACE;
+ break;
+ case GST_MAP_READ:
+ // Only read flag set: return raw pixels
+ if (!ensure_surface(mem))
+ goto error_no_surface;
+ if (!ensure_image(mem))
+ goto error_no_image;
+ if (!mem->use_direct_rendering)
+ gst_vaapi_surface_get_image(mem->surface, mem->image);
+ if (!gst_vaapi_image_map(mem->image))
+ goto error_map_image;
+ mem->map_type = GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_LINEAR;
+ break;
+ default:
+ goto error_unsupported_map;
+ }
+ }
+
+ switch (mem->map_type) {
+ case GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_SURFACE:
if (!mem->proxy)
goto error_no_surface_proxy;
- mem->map_type = GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_SURFACE;
+ data = mem->proxy;
+ break;
+ case GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_LINEAR:
+ if (!mem->image)
+ goto error_no_image;
+ data = get_image_data(mem->image);
+ break;
+ default:
+ goto error_unsupported_map_type;
}
mem->map_count++;
- return mem->proxy;
+ return data;
/* ERRORS */
-error_incompatible_map:
- GST_ERROR("failed to map memory to a GstVaapiSurfaceProxy");
+error_unsupported_map:
+ GST_ERROR("unsupported map flags (0x%x)", flags);
+ return NULL;
+error_unsupported_map_type:
+ GST_ERROR("unsupported map type (%d)", mem->map_type);
return NULL;
error_no_surface_proxy:
GST_ERROR("failed to extract GstVaapiSurfaceProxy from video meta");
return NULL;
+error_no_surface:
+ GST_ERROR("failed to extract VA surface from video buffer");
+ return NULL;
+error_no_image:
+ GST_ERROR("failed to extract VA image from video buffer");
+ return NULL;
+error_map_image:
+ GST_ERROR("failed to map VA image");
+ return NULL;
}
static void
gst_vaapi_video_memory_unmap(GstVaapiVideoMemory *mem)
{
- if (mem->map_type &&
- mem->map_type != GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_SURFACE)
- goto error_incompatible_map;
-
- if (--mem->map_count == 0) {
- gst_vaapi_surface_proxy_replace(&mem->proxy, NULL);
+ if (mem->map_count == 1) {
+ switch (mem->map_type) {
+ case GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_SURFACE:
+ gst_vaapi_surface_proxy_replace(&mem->proxy, NULL);
+ break;
+ case GST_VAAPI_VIDEO_MEMORY_MAP_TYPE_LINEAR:
+ gst_vaapi_image_unmap(mem->image);
+ break;
+ default:
+ goto error_incompatible_map;
+ }
mem->map_type = 0;
}
+ mem->map_count--;
return;
/* ERRORS */
g_return_val_if_fail(num_planes == GST_VIDEO_INFO_N_PLANES(vip), FALSE);
/* Determine the base data pointer */
- data = gst_vaapi_image_get_plane(image, 0);
- for (i = 1; i < num_planes; i++) {
- const guchar * const plane = gst_vaapi_image_get_plane(image, i);
- if (data > plane)
- data = plane;
- }
+ data = get_image_data(image);
+ g_return_val_if_fail(data != NULL, FALSE);
data_size = gst_vaapi_image_get_data_size(image);
/* Check that we don't have disjoint planes */
image = gst_vaapi_surface_derive_image(surface);
if (!image)
break;
- if (GST_VAAPI_IMAGE_FORMAT(image) != GST_VIDEO_INFO_FORMAT(vip))
- break;
if (!gst_vaapi_image_map(image))
break;
allocator->has_direct_rendering = gst_video_info_update_from_image(
&allocator->surface_info, image);
+ if (GST_VAAPI_IMAGE_FORMAT(image) != GST_VIDEO_INFO_FORMAT(vip))
+ allocator->has_direct_rendering = FALSE;
gst_vaapi_image_unmap(image);
GST_INFO("has direct-rendering for %s surfaces: %s",
GST_VIDEO_INFO_FORMAT_STRING(&allocator->surface_info),
allocator->image_info = *vip;
if (GST_VIDEO_INFO_FORMAT(vip) == GST_VIDEO_FORMAT_ENCODED)
- gst_video_info_set_format(&allocator->image_info, GST_VIDEO_FORMAT_NV12,
+ gst_video_info_set_format(&allocator->image_info, GST_VIDEO_FORMAT_I420,
GST_VIDEO_INFO_WIDTH(vip), GST_VIDEO_INFO_HEIGHT(vip));
if (allocator->has_direct_rendering)
projects / platform / upstream / gstreamer-vaapi.git / blobdiff