gstreamer/gst-libs/gst/vaapi/gstvaapisurface.c

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/*
* gstvaapisurface.c - VA surface abstraction
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
2014-01-22 17:54:14 +00:00
* Copyright (C) 2011-2014 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
2011-06-14 11:51:41 +00:00
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
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* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
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* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
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/**
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* SECTION:gstvaapisurface
* @short_description: VA surface abstraction
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*/
#include "sysdeps.h"
#include "gstvaapicompat.h"
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#include "gstvaapiutils.h"
#include "gstvaapisurface.h"
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#include "gstvaapisurface_priv.h"
#include "gstvaapicontext.h"
#include "gstvaapiimage.h"
#include "gstvaapiimage_priv.h"
#include "gstvaapicontext_overlay.h"
#include "gstvaapibufferproxy_priv.h"
#define DEBUG 1
#include "gstvaapidebug.h"
static gboolean
_gst_vaapi_surface_associate_subpicture (GstVaapiSurface * surface,
GstVaapiSubpicture * subpicture, const GstVaapiRectangle * src_rect,
const GstVaapiRectangle * dst_rect);
static gboolean
_gst_vaapi_surface_deassociate_subpicture (GstVaapiSurface * surface,
GstVaapiSubpicture * subpicture);
static void
destroy_subpicture_cb (gpointer subpicture, gpointer surface)
{
_gst_vaapi_surface_deassociate_subpicture (surface, subpicture);
gst_vaapi_object_unref (subpicture);
}
static void
gst_vaapi_surface_destroy_subpictures (GstVaapiSurface * surface)
{
if (surface->subpictures) {
g_ptr_array_foreach (surface->subpictures, destroy_subpicture_cb, surface);
g_ptr_array_free (surface->subpictures, TRUE);
surface->subpictures = NULL;
}
}
static void
gst_vaapi_surface_destroy (GstVaapiSurface * surface)
{
GstVaapiDisplay *const display = GST_VAAPI_OBJECT_DISPLAY (surface);
VASurfaceID surface_id;
VAStatus status;
surface_id = GST_VAAPI_OBJECT_ID (surface);
GST_DEBUG ("surface %" GST_VAAPI_ID_FORMAT, GST_VAAPI_ID_ARGS (surface_id));
gst_vaapi_surface_destroy_subpictures (surface);
gst_vaapi_surface_set_parent_context (surface, NULL);
if (surface_id != VA_INVALID_SURFACE) {
GST_VAAPI_DISPLAY_LOCK (display);
status = vaDestroySurfaces (GST_VAAPI_DISPLAY_VADISPLAY (display),
&surface_id, 1);
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (status, "vaDestroySurfaces()"))
g_warning ("failed to destroy surface %" GST_VAAPI_ID_FORMAT,
GST_VAAPI_ID_ARGS (surface_id));
GST_VAAPI_OBJECT_ID (surface) = VA_INVALID_SURFACE;
}
gst_vaapi_buffer_proxy_replace (&surface->extbuf_proxy, NULL);
}
static gboolean
gst_vaapi_surface_create (GstVaapiSurface * surface,
GstVaapiChromaType chroma_type, guint width, guint height)
{
GstVaapiDisplay *const display = GST_VAAPI_OBJECT_DISPLAY (surface);
VASurfaceID surface_id;
VAStatus status;
guint va_chroma_format;
va_chroma_format = from_GstVaapiChromaType (chroma_type);
if (!va_chroma_format)
goto error_unsupported_chroma_type;
GST_VAAPI_DISPLAY_LOCK (display);
status = vaCreateSurfaces (GST_VAAPI_DISPLAY_VADISPLAY (display),
width, height, va_chroma_format, 1, &surface_id);
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (status, "vaCreateSurfaces()"))
return FALSE;
surface->format = GST_VIDEO_FORMAT_UNKNOWN;
surface->chroma_type = chroma_type;
surface->width = width;
surface->height = height;
GST_DEBUG ("surface %" GST_VAAPI_ID_FORMAT, GST_VAAPI_ID_ARGS (surface_id));
GST_VAAPI_OBJECT_ID (surface) = surface_id;
return TRUE;
/* ERRORS */
error_unsupported_chroma_type:
GST_ERROR ("unsupported chroma-type %u", chroma_type);
return FALSE;
}
static gboolean
gst_vaapi_surface_create_full (GstVaapiSurface * surface,
const GstVideoInfo * vip, guint flags)
{
#if VA_CHECK_VERSION(0,34,0)
GstVaapiDisplay *const display = GST_VAAPI_OBJECT_DISPLAY (surface);
const GstVideoFormat format = GST_VIDEO_INFO_FORMAT (vip);
VASurfaceID surface_id;
VAStatus status;
guint chroma_type, va_chroma_format, i;
const VAImageFormat *va_format;
VASurfaceAttrib attribs[3], *attrib;
VASurfaceAttribExternalBuffers extbuf;
gboolean extbuf_needed = FALSE;
va_format = gst_vaapi_video_format_to_va_format (format);
if (!va_format)
goto error_unsupported_format;
chroma_type = gst_vaapi_video_format_get_chroma_type (format);
if (!chroma_type)
goto error_unsupported_format;
va_chroma_format = from_GstVaapiChromaType (chroma_type);
if (!va_chroma_format)
goto error_unsupported_format;
memset (&extbuf, 0, sizeof (extbuf));
extbuf.pixel_format = va_format->fourcc;
extbuf.width = GST_VIDEO_INFO_WIDTH (vip);
extbuf.height = GST_VIDEO_INFO_HEIGHT (vip);
if (flags & GST_VAAPI_SURFACE_ALLOC_FLAG_LINEAR_STORAGE) {
extbuf.flags &= ~VA_SURFACE_EXTBUF_DESC_ENABLE_TILING;
extbuf_needed = TRUE;
}
extbuf.num_planes = GST_VIDEO_INFO_N_PLANES (vip);
if (flags & GST_VAAPI_SURFACE_ALLOC_FLAG_FIXED_STRIDES) {
for (i = 0; i < extbuf.num_planes; i++)
extbuf.pitches[i] = GST_VIDEO_INFO_PLANE_STRIDE (vip, i);
extbuf_needed = TRUE;
}
if (flags & GST_VAAPI_SURFACE_ALLOC_FLAG_FIXED_OFFSETS) {
for (i = 0; i < extbuf.num_planes; i++)
extbuf.offsets[i] = GST_VIDEO_INFO_PLANE_OFFSET (vip, i);
extbuf_needed = TRUE;
}
attrib = attribs;
attrib->flags = VA_SURFACE_ATTRIB_SETTABLE;
attrib->type = VASurfaceAttribPixelFormat;
attrib->value.type = VAGenericValueTypeInteger;
attrib->value.value.i = va_format->fourcc;
attrib++;
if (extbuf_needed) {
attrib->flags = VA_SURFACE_ATTRIB_SETTABLE;
attrib->type = VASurfaceAttribMemoryType;
attrib->value.type = VAGenericValueTypeInteger;
attrib->value.value.i = VA_SURFACE_ATTRIB_MEM_TYPE_VA;
attrib++;
attrib->flags = VA_SURFACE_ATTRIB_SETTABLE;
attrib->type = VASurfaceAttribExternalBufferDescriptor;
attrib->value.type = VAGenericValueTypePointer;
attrib->value.value.p = &extbuf;
attrib++;
}
GST_VAAPI_DISPLAY_LOCK (display);
status = vaCreateSurfaces (GST_VAAPI_DISPLAY_VADISPLAY (display),
va_chroma_format, extbuf.width, extbuf.height, &surface_id, 1,
attribs, attrib - attribs);
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (status, "vaCreateSurfaces()"))
return FALSE;
surface->format = format;
surface->chroma_type = chroma_type;
surface->width = extbuf.width;
surface->height = extbuf.height;
GST_DEBUG ("surface %" GST_VAAPI_ID_FORMAT, GST_VAAPI_ID_ARGS (surface_id));
GST_VAAPI_OBJECT_ID (surface) = surface_id;
return TRUE;
/* ERRORS */
error_unsupported_format:
GST_ERROR ("unsupported format %s",
gst_vaapi_video_format_to_string (format));
return FALSE;
#else
return FALSE;
#endif
}
static gboolean
gst_vaapi_surface_create_from_buffer_proxy (GstVaapiSurface * surface,
GstVaapiBufferProxy * proxy, const GstVideoInfo * vip)
{
#if VA_CHECK_VERSION (0,36,0)
GstVaapiDisplay *const display = GST_VAAPI_OBJECT_DISPLAY (surface);
GstVideoFormat format;
VASurfaceID surface_id;
VAStatus status;
guint chroma_type, va_chroma_format;
const VAImageFormat *va_format;
VASurfaceAttrib attribs[2], *attrib;
VASurfaceAttribExternalBuffers extbuf;
unsigned long extbuf_handle;
guint i, width, height;
format = GST_VIDEO_INFO_FORMAT (vip);
width = GST_VIDEO_INFO_WIDTH (vip);
height = GST_VIDEO_INFO_HEIGHT (vip);
gst_vaapi_buffer_proxy_replace (&surface->extbuf_proxy, proxy);
va_format = gst_vaapi_video_format_to_va_format (format);
if (!va_format)
goto error_unsupported_format;
chroma_type = gst_vaapi_video_format_get_chroma_type (format);
if (!chroma_type)
goto error_unsupported_format;
va_chroma_format = from_GstVaapiChromaType (chroma_type);
if (!va_chroma_format)
goto error_unsupported_format;
extbuf_handle = GST_VAAPI_BUFFER_PROXY_HANDLE (proxy);
extbuf.pixel_format = va_format->fourcc;
extbuf.width = width;
extbuf.height = height;
extbuf.data_size = GST_VAAPI_BUFFER_PROXY_SIZE (proxy);
extbuf.num_planes = GST_VIDEO_INFO_N_PLANES (vip);
for (i = 0; i < extbuf.num_planes; i++) {
extbuf.pitches[i] = GST_VIDEO_INFO_PLANE_STRIDE (vip, i);
extbuf.offsets[i] = GST_VIDEO_INFO_PLANE_OFFSET (vip, i);
}
extbuf.buffers = &extbuf_handle;
extbuf.num_buffers = 1;
extbuf.flags = 0;
extbuf.private_data = NULL;
attrib = attribs;
attrib->type = VASurfaceAttribExternalBufferDescriptor;
attrib->flags = VA_SURFACE_ATTRIB_SETTABLE;
attrib->value.type = VAGenericValueTypePointer;
attrib->value.value.p = &extbuf;
attrib++;
attrib->type = VASurfaceAttribMemoryType;
attrib->flags = VA_SURFACE_ATTRIB_SETTABLE;
attrib->value.type = VAGenericValueTypeInteger;
attrib->value.value.i =
from_GstVaapiBufferMemoryType (GST_VAAPI_BUFFER_PROXY_TYPE (proxy));
attrib++;
GST_VAAPI_DISPLAY_LOCK (display);
status = vaCreateSurfaces (GST_VAAPI_DISPLAY_VADISPLAY (display),
va_chroma_format, width, height, &surface_id, 1, attribs,
attrib - attribs);
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (status, "vaCreateSurfaces()"))
return FALSE;
surface->format = format;
surface->chroma_type = chroma_type;
surface->width = width;
surface->height = height;
GST_DEBUG ("surface %" GST_VAAPI_ID_FORMAT, GST_VAAPI_ID_ARGS (surface_id));
GST_VAAPI_OBJECT_ID (surface) = surface_id;
return TRUE;
/* ERRORS */
error_unsupported_format:
GST_ERROR ("unsupported format %s",
gst_vaapi_video_format_to_string (format));
return FALSE;
#else
return FALSE;
#endif
}
#define gst_vaapi_surface_finalize gst_vaapi_surface_destroy
GST_VAAPI_OBJECT_DEFINE_CLASS (GstVaapiSurface, gst_vaapi_surface);
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/**
* gst_vaapi_surface_new:
* @display: a #GstVaapiDisplay
* @chroma_type: the surface chroma format
* @width: the requested surface width
* @height: the requested surface height
*
* Creates a new #GstVaapiSurface with the specified chroma format and
* dimensions.
*
* Return value: the newly allocated #GstVaapiSurface object
*/
GstVaapiSurface *
gst_vaapi_surface_new (GstVaapiDisplay * display,
GstVaapiChromaType chroma_type, guint width, guint height)
{
GstVaapiSurface *surface;
GST_DEBUG ("size %ux%u, chroma type 0x%x", width, height, chroma_type);
surface = gst_vaapi_object_new (gst_vaapi_surface_class (), display);
if (!surface)
return NULL;
if (!gst_vaapi_surface_create (surface, chroma_type, width, height))
goto error;
return surface;
error:
gst_vaapi_object_unref (surface);
return NULL;
}
/**
* gst_vaapi_surface_new_full:
* @display: a #GstVaapiDisplay
* @vip: the pointer to a #GstVideoInfo
* @flags: (optional) allocation flags
*
* Creates a new #GstVaapiSurface with the specified video information
* and optional #GstVaapiSurfaceAllocFlags
*
* Return value: the newly allocated #GstVaapiSurface object, or %NULL
* if creation of VA surface with explicit pixel format is not
* supported or failed.
*/
GstVaapiSurface *
gst_vaapi_surface_new_full (GstVaapiDisplay * display,
const GstVideoInfo * vip, guint flags)
{
GstVaapiSurface *surface;
GST_DEBUG ("size %ux%u, format %s, flags 0x%08x", GST_VIDEO_INFO_WIDTH (vip),
GST_VIDEO_INFO_HEIGHT (vip),
gst_vaapi_video_format_to_string (GST_VIDEO_INFO_FORMAT (vip)), flags);
surface = gst_vaapi_object_new (gst_vaapi_surface_class (), display);
if (!surface)
return NULL;
if (!gst_vaapi_surface_create_full (surface, vip, flags))
goto error;
return surface;
error:
gst_vaapi_object_unref (surface);
return NULL;
}
/**
* gst_vaapi_surface_new_with_format:
* @display: a #GstVaapiDisplay
* @format: the surface format
* @width: the requested surface width
* @height: the requested surface height
*
* Creates a new #GstVaapiSurface with the specified pixel format and
* dimensions.
*
* Return value: the newly allocated #GstVaapiSurface object, or %NULL
* if creation of VA surface with explicit pixel format is not
* supported or failed.
*/
GstVaapiSurface *
gst_vaapi_surface_new_with_format (GstVaapiDisplay * display,
GstVideoFormat format, guint width, guint height)
{
GstVideoInfo vi;
gst_video_info_set_format (&vi, format, width, height);
return gst_vaapi_surface_new_full (display, &vi, 0);
}
/**
* gst_vaapi_surface_new_from_buffer_proxy:
* @display: a #GstVaapiDisplay
* @proxy: a #GstVaapiBufferProxy
* @info: the #GstVideoInfo structure defining the layout of the buffer
*
* Creates a new #GstVaapiSurface with the supplied VA buffer proxy
* abstraction. The underlying VA buffer memory type could be anything
* that is supported by the VA driver.
*
* The resulting #GstVaapiSurface object owns an extra reference to
* the buffer @proxy, so the caller can safely release that handle as
* early as on return of this call.
*
* Return value: the newly allocated #GstVaapiSurface object, or %NULL
* if creation of VA surface failed or is not supported
*/
GstVaapiSurface *
gst_vaapi_surface_new_from_buffer_proxy (GstVaapiDisplay * display,
GstVaapiBufferProxy * proxy, const GstVideoInfo * info)
{
GstVaapiSurface *surface;
g_return_val_if_fail (proxy != NULL, NULL);
g_return_val_if_fail (info != NULL, NULL);
surface = gst_vaapi_object_new (gst_vaapi_surface_class (), display);
if (!surface)
return NULL;
if (!gst_vaapi_surface_create_from_buffer_proxy (surface, proxy, info))
goto error;
return surface;
error:
gst_vaapi_object_unref (surface);
return NULL;
}
/**
* gst_vaapi_surface_get_id:
* @surface: a #GstVaapiSurface
*
* Returns the underlying VASurfaceID of the @surface.
*
* Return value: the underlying VA surface id
*/
GstVaapiID
gst_vaapi_surface_get_id (GstVaapiSurface * surface)
{
g_return_val_if_fail (surface != NULL, VA_INVALID_SURFACE);
return GST_VAAPI_OBJECT_ID (surface);
}
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/**
* gst_vaapi_surface_get_chroma_type:
* @surface: a #GstVaapiSurface
*
* Returns the #GstVaapiChromaType the @surface was created with.
*
* Return value: the #GstVaapiChromaType
*/
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GstVaapiChromaType
gst_vaapi_surface_get_chroma_type (GstVaapiSurface * surface)
{
g_return_val_if_fail (surface != NULL, 0);
return GST_VAAPI_SURFACE_CHROMA_TYPE (surface);
}
/**
* gst_vaapi_surface_get_format:
* @surface: a #GstVaapiSurface
*
* Returns the #GstVideoFormat the @surface was created with.
*
* Return value: the #GstVideoFormat, or %GST_VIDEO_FORMAT_ENCODED if
* the surface was not created with an explicit video format, or if
* the underlying video format could not be determined
*/
GstVideoFormat
gst_vaapi_surface_get_format (GstVaapiSurface * surface)
{
g_return_val_if_fail (surface != NULL, 0);
/* Try to determine the underlying VA surface format */
if (surface->format == GST_VIDEO_FORMAT_UNKNOWN) {
GstVaapiImage *const image = gst_vaapi_surface_derive_image (surface);
if (image) {
surface->format = GST_VAAPI_IMAGE_FORMAT (image);
gst_vaapi_object_unref (image);
}
if (surface->format == GST_VIDEO_FORMAT_UNKNOWN)
surface->format = GST_VIDEO_FORMAT_ENCODED;
}
return GST_VAAPI_SURFACE_FORMAT (surface);
}
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/**
* gst_vaapi_surface_get_width:
* @surface: a #GstVaapiSurface
*
* Returns the @surface width.
*
* Return value: the surface width, in pixels
*/
guint
gst_vaapi_surface_get_width (GstVaapiSurface * surface)
{
g_return_val_if_fail (surface != NULL, 0);
return GST_VAAPI_SURFACE_WIDTH (surface);
}
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/**
* gst_vaapi_surface_get_height:
* @surface: a #GstVaapiSurface
*
* Returns the @surface height.
*
* Return value: the surface height, in pixels.
*/
guint
gst_vaapi_surface_get_height (GstVaapiSurface * surface)
{
g_return_val_if_fail (surface != NULL, 0);
return GST_VAAPI_SURFACE_HEIGHT (surface);
}
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/**
* gst_vaapi_surface_get_size:
* @surface: a #GstVaapiSurface
* @width_ptr: return location for the width, or %NULL
* @height_ptr: return location for the height, or %NULL
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*
* Retrieves the dimensions of a #GstVaapiSurface.
*/
void
gst_vaapi_surface_get_size (GstVaapiSurface * surface,
guint * width_ptr, guint * height_ptr)
{
g_return_if_fail (surface != NULL);
if (width_ptr)
*width_ptr = GST_VAAPI_SURFACE_WIDTH (surface);
if (height_ptr)
*height_ptr = GST_VAAPI_SURFACE_HEIGHT (surface);
}
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/**
* gst_vaapi_surface_set_parent_context:
* @surface: a #GstVaapiSurface
* @context: a #GstVaapiContext
*
* Sets new parent context, or clears any parent context if @context
* is %NULL. This function owns an extra reference to the context,
* which will be released when the surface is destroyed.
*/
void
gst_vaapi_surface_set_parent_context (GstVaapiSurface * surface,
GstVaapiContext * context)
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{
g_return_if_fail (surface != NULL);
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surface->parent_context = NULL;
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}
/**
* gst_vaapi_surface_get_parent_context:
* @surface: a #GstVaapiSurface
*
* Retrieves the parent #GstVaapiContext, or %NULL if there is
* none. The surface shall still own a reference to the context.
* i.e. the caller shall not unreference the returned context object.
*
* Return value: the parent context, if any.
*/
GstVaapiContext *
gst_vaapi_surface_get_parent_context (GstVaapiSurface * surface)
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{
g_return_val_if_fail (surface != NULL, NULL);
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return surface->parent_context;
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}
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/**
* gst_vaapi_surface_derive_image:
* @surface: a #GstVaapiSurface
*
* Derives a #GstVaapiImage from the @surface. This image buffer can
* then be mapped/unmapped for direct CPU access. This operation is
* only possible if the underlying implementation supports direct
* rendering capabilities and internal surface formats that can be
* represented with a #GstVaapiImage.
*
* When the operation is not possible, the function returns %NULL and
* the user should then fallback to using gst_vaapi_surface_get_image()
* or gst_vaapi_surface_put_image() to accomplish the same task in an
* indirect manner (additional copy).
*
* An image created with gst_vaapi_surface_derive_image() should be
* unreferenced when it's no longer needed. The image and image buffer
* data structures will be destroyed. However, the surface contents
* will remain unchanged until destroyed through the last call to
* gst_vaapi_object_unref().
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*
* Return value: the newly allocated #GstVaapiImage object, or %NULL
* on failure
*/
GstVaapiImage *
gst_vaapi_surface_derive_image (GstVaapiSurface * surface)
{
GstVaapiDisplay *display;
VAImage va_image;
VAStatus status;
GstVaapiImage *image;
g_return_val_if_fail (surface != NULL, NULL);
display = GST_VAAPI_OBJECT_DISPLAY (surface);
va_image.image_id = VA_INVALID_ID;
va_image.buf = VA_INVALID_ID;
GST_VAAPI_DISPLAY_LOCK (display);
status = vaDeriveImage (GST_VAAPI_DISPLAY_VADISPLAY (display),
GST_VAAPI_OBJECT_ID (surface), &va_image);
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (status, "vaDeriveImage()"))
return NULL;
if (va_image.image_id == VA_INVALID_ID || va_image.buf == VA_INVALID_ID)
return NULL;
image = gst_vaapi_image_new_with_image (display, &va_image);
if (!image)
vaDestroyImage (GST_VAAPI_DISPLAY_VADISPLAY (display), va_image.image_id);
return image;
}
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/**
* gst_vaapi_surface_get_image
* @surface: a #GstVaapiSurface
* @image: a #GstVaapiImage
*
* Retrieves surface data into a #GstVaapiImage. The @image must have
* a format supported by the @surface.
*
* Return value: %TRUE on success
*/
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gboolean
gst_vaapi_surface_get_image (GstVaapiSurface * surface, GstVaapiImage * image)
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{
GstVaapiDisplay *display;
VAImageID image_id;
VAStatus status;
guint width, height;
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g_return_val_if_fail (surface != NULL, FALSE);
g_return_val_if_fail (image != NULL, FALSE);
display = GST_VAAPI_OBJECT_DISPLAY (surface);
if (!display)
return FALSE;
width = GST_VAAPI_IMAGE_WIDTH (image);
height = GST_VAAPI_IMAGE_HEIGHT (image);
if (width != surface->width || height != surface->height)
return FALSE;
image_id = GST_VAAPI_OBJECT_ID (image);
if (image_id == VA_INVALID_ID)
return FALSE;
GST_VAAPI_DISPLAY_LOCK (display);
status = vaGetImage (GST_VAAPI_DISPLAY_VADISPLAY (display),
GST_VAAPI_OBJECT_ID (surface), 0, 0, width, height, image_id);
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (status, "vaGetImage()"))
return FALSE;
return TRUE;
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}
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/**
* gst_vaapi_surface_put_image:
* @surface: a #GstVaapiSurface
* @image: a #GstVaapiImage
*
* Copies data from a #GstVaapiImage into a @surface. The @image must
* have a format supported by the @surface.
*
* Return value: %TRUE on success
*/
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gboolean
gst_vaapi_surface_put_image (GstVaapiSurface * surface, GstVaapiImage * image)
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{
GstVaapiDisplay *display;
VAImageID image_id;
VAStatus status;
guint width, height;
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g_return_val_if_fail (surface != NULL, FALSE);
g_return_val_if_fail (image != NULL, FALSE);
display = GST_VAAPI_OBJECT_DISPLAY (surface);
if (!display)
return FALSE;
width = GST_VAAPI_IMAGE_WIDTH (image);
height = GST_VAAPI_IMAGE_HEIGHT (image);
if (width != surface->width || height != surface->height)
return FALSE;
image_id = GST_VAAPI_OBJECT_ID (image);
if (image_id == VA_INVALID_ID)
return FALSE;
GST_VAAPI_DISPLAY_LOCK (display);
status = vaPutImage (GST_VAAPI_DISPLAY_VADISPLAY (display),
GST_VAAPI_OBJECT_ID (surface), image_id, 0, 0, width, height,
0, 0, width, height);
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (status, "vaPutImage()"))
return FALSE;
return TRUE;
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}
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/**
* gst_vaapi_surface_associate_subpicture:
* @surface: a #GstVaapiSurface
* @subpicture: a #GstVaapiSubpicture
* @src_rect: the sub-rectangle of the source subpicture
* image to extract and process. If %NULL, the entire image will be used.
* @dst_rect: the sub-rectangle of the destination
* surface into which the image is rendered. If %NULL, the entire
* surface will be used.
*
* Associates the @subpicture with the @surface. The @src_rect
* coordinates and size are relative to the source image bound to
* @subpicture. The @dst_rect coordinates and size are relative to the
* target @surface. Note that the @surface holds an additional
* reference to the @subpicture.
*
* Return value: %TRUE on success
*/
gboolean
gst_vaapi_surface_associate_subpicture (GstVaapiSurface * surface,
GstVaapiSubpicture * subpicture,
const GstVaapiRectangle * src_rect, const GstVaapiRectangle * dst_rect)
{
gboolean success;
g_return_val_if_fail (surface != NULL, FALSE);
g_return_val_if_fail (subpicture != NULL, FALSE);
if (!surface->subpictures) {
surface->subpictures = g_ptr_array_new ();
if (!surface->subpictures)
return FALSE;
}
if (g_ptr_array_remove_fast (surface->subpictures, subpicture)) {
success = _gst_vaapi_surface_deassociate_subpicture (surface, subpicture);
gst_vaapi_object_unref (subpicture);
if (!success)
return FALSE;
}
success = _gst_vaapi_surface_associate_subpicture (surface,
subpicture, src_rect, dst_rect);
if (!success)
return FALSE;
g_ptr_array_add (surface->subpictures, gst_vaapi_object_ref (subpicture));
return TRUE;
}
gboolean
_gst_vaapi_surface_associate_subpicture (GstVaapiSurface * surface,
GstVaapiSubpicture * subpicture,
const GstVaapiRectangle * src_rect, const GstVaapiRectangle * dst_rect)
{
GstVaapiDisplay *display;
GstVaapiRectangle src_rect_default, dst_rect_default;
GstVaapiImage *image;
VASurfaceID surface_id;
VAStatus status;
display = GST_VAAPI_OBJECT_DISPLAY (surface);
if (!display)
return FALSE;
surface_id = GST_VAAPI_OBJECT_ID (surface);
if (surface_id == VA_INVALID_SURFACE)
return FALSE;
if (!src_rect) {
image = gst_vaapi_subpicture_get_image (subpicture);
if (!image)
return FALSE;
src_rect = &src_rect_default;
src_rect_default.x = 0;
src_rect_default.y = 0;
src_rect_default.width = GST_VAAPI_IMAGE_WIDTH (image);
src_rect_default.height = GST_VAAPI_IMAGE_HEIGHT (image);
}
if (!dst_rect) {
dst_rect = &dst_rect_default;
dst_rect_default.x = 0;
dst_rect_default.y = 0;
dst_rect_default.width = surface->width;
dst_rect_default.height = surface->height;
}
GST_VAAPI_DISPLAY_LOCK (display);
status = vaAssociateSubpicture (GST_VAAPI_DISPLAY_VADISPLAY (display),
GST_VAAPI_OBJECT_ID (subpicture), &surface_id, 1,
src_rect->x, src_rect->y, src_rect->width, src_rect->height,
dst_rect->x, dst_rect->y, dst_rect->width, dst_rect->height,
from_GstVaapiSubpictureFlags (gst_vaapi_subpicture_get_flags
(subpicture)));
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (status, "vaAssociateSubpicture()"))
return FALSE;
return TRUE;
}
/**
* gst_vaapi_surface_deassociate_subpicture:
* @surface: a #GstVaapiSurface
* @subpicture: a #GstVaapiSubpicture
*
* Deassociates @subpicture from @surface. Other associations are kept.
*
* Return value: %TRUE on success
*/
gboolean
gst_vaapi_surface_deassociate_subpicture (GstVaapiSurface * surface,
GstVaapiSubpicture * subpicture)
{
gboolean success;
g_return_val_if_fail (surface != NULL, FALSE);
g_return_val_if_fail (subpicture != NULL, FALSE);
if (!surface->subpictures)
return TRUE;
/* First, check subpicture was really associated with this surface */
if (!g_ptr_array_remove_fast (surface->subpictures, subpicture)) {
GST_DEBUG ("subpicture %" GST_VAAPI_ID_FORMAT " was not bound to "
"surface %" GST_VAAPI_ID_FORMAT,
GST_VAAPI_ID_ARGS (GST_VAAPI_OBJECT_ID (subpicture)),
GST_VAAPI_ID_ARGS (GST_VAAPI_OBJECT_ID (surface)));
return TRUE;
}
success = _gst_vaapi_surface_deassociate_subpicture (surface, subpicture);
gst_vaapi_object_unref (subpicture);
return success;
}
gboolean
_gst_vaapi_surface_deassociate_subpicture (GstVaapiSurface * surface,
GstVaapiSubpicture * subpicture)
{
GstVaapiDisplay *display;
VASurfaceID surface_id;
VAStatus status;
display = GST_VAAPI_OBJECT_DISPLAY (surface);
if (!display)
return FALSE;
surface_id = GST_VAAPI_OBJECT_ID (surface);
if (surface_id == VA_INVALID_SURFACE)
return FALSE;
GST_VAAPI_DISPLAY_LOCK (display);
status = vaDeassociateSubpicture (GST_VAAPI_DISPLAY_VADISPLAY (display),
GST_VAAPI_OBJECT_ID (subpicture), &surface_id, 1);
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (status, "vaDeassociateSubpicture()"))
return FALSE;
return TRUE;
}
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/**
* gst_vaapi_surface_sync:
* @surface: a #GstVaapiSurface
*
* Blocks until all pending operations on the @surface have been
* completed.
*
* Return value: %TRUE on success
*/
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gboolean
gst_vaapi_surface_sync (GstVaapiSurface * surface)
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{
GstVaapiDisplay *display;
VAStatus status;
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g_return_val_if_fail (surface != NULL, FALSE);
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display = GST_VAAPI_OBJECT_DISPLAY (surface);
if (!display)
return FALSE;
GST_VAAPI_DISPLAY_LOCK (display);
status = vaSyncSurface (GST_VAAPI_DISPLAY_VADISPLAY (display),
GST_VAAPI_OBJECT_ID (surface));
GST_VAAPI_DISPLAY_UNLOCK (display);
if (!vaapi_check_status (status, "vaSyncSurface()"))
return FALSE;
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return TRUE;
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}
/**
* gst_vaapi_surface_query_status:
* @surface: a #GstVaapiSurface
* @pstatus: return location for the #GstVaapiSurfaceStatus
*
* Finds out any pending operations on the @surface. The
* #GstVaapiSurfaceStatus flags are returned into @pstatus.
*
* Return value: %TRUE on success
*/
gboolean
gst_vaapi_surface_query_status (GstVaapiSurface * surface,
GstVaapiSurfaceStatus * pstatus)
{
VASurfaceStatus surface_status;
VAStatus status;
g_return_val_if_fail (surface != NULL, FALSE);
GST_VAAPI_OBJECT_LOCK_DISPLAY (surface);
status = vaQuerySurfaceStatus (GST_VAAPI_OBJECT_VADISPLAY (surface),
GST_VAAPI_OBJECT_ID (surface), &surface_status);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY (surface);
if (!vaapi_check_status (status, "vaQuerySurfaceStatus()"))
return FALSE;
if (pstatus)
*pstatus = to_GstVaapiSurfaceStatus (surface_status);
return TRUE;
}
/**
* gst_vaapi_surface_set_subpictures_from_composition:
* @surface: a #GstVaapiSurface
* @compostion: a #GstVideoOverlayCompositon
* @propagate_context: a flag specifying whether to apply composition
* to the parent context, if any
*
* Helper to update the subpictures from #GstVideoOverlayCompositon. Sending
* a NULL composition will clear all the current subpictures. Note that this
* method will clear existing subpictures.
*
* Return value: %TRUE on success
*/
gboolean
gst_vaapi_surface_set_subpictures_from_composition (GstVaapiSurface * surface,
GstVideoOverlayComposition * composition, gboolean propagate_context)
{
GstVaapiDisplay *display;
guint n, nb_rectangles;
g_return_val_if_fail (surface != NULL, FALSE);
if (propagate_context && surface->parent_context)
return gst_vaapi_context_apply_composition (surface->parent_context,
composition);
display = GST_VAAPI_OBJECT_DISPLAY (surface);
if (!display)
return FALSE;
/* Clear current subpictures */
gst_vaapi_surface_destroy_subpictures (surface);
if (!composition)
return TRUE;
nb_rectangles = gst_video_overlay_composition_n_rectangles (composition);
/* Overlay all the rectangles cantained in the overlay composition */
for (n = 0; n < nb_rectangles; ++n) {
GstVideoOverlayRectangle *rect;
GstVaapiRectangle sub_rect;
GstVaapiSubpicture *subpicture;
rect = gst_video_overlay_composition_get_rectangle (composition, n);
subpicture = gst_vaapi_subpicture_new_from_overlay_rectangle (display,
rect);
gst_video_overlay_rectangle_get_render_rectangle (rect,
(gint *) & sub_rect.x, (gint *) & sub_rect.y,
&sub_rect.width, &sub_rect.height);
if (!gst_vaapi_surface_associate_subpicture (surface, subpicture,
NULL, &sub_rect)) {
GST_WARNING ("could not render overlay rectangle %p", rect);
gst_vaapi_object_unref (subpicture);
return FALSE;
}
gst_vaapi_object_unref (subpicture);
}
return TRUE;
}