Commit ea92da6e authored by Hyunjun Ko's avatar Hyunjun Ko Committed by Sreerenj Balachandran

msdk: dmabuf support

This patch includes:
1\ Implements MsdkDmaBufAllocator and allocation of msdk dmabuf memroy.
2\ Each msdk dmabuf memory include its own msdk surface kept by GQuark.
3\ Adds new option GST_BUFFER_POOL_OPTION_MSDK_USE_DMABUF

https://bugzilla.gnome.org/show_bug.cgi?id=793707
parent 5df06545
......@@ -53,6 +53,7 @@ libgstmsdk_la_CFLAGS = \
$(GST_BASE_CFLAGS) \
$(GST_PBUTILS_CFLAGS) \
$(GST_VIDEO_CFLAGS) \
$(GST_ALLOCATORS_CFLAGS) \
$(MSDK_CFLAGS) \
$(LIBMFX_CFLAGS)\
$(G_UDEV_CFLAGS)
......@@ -62,6 +63,7 @@ libgstmsdk_la_LIBADD = \
$(GST_BASE_LIBS) \
$(GST_PBUTILS_LIBS) \
$(GST_VIDEO_LIBS) \
$(GST_ALLOCATORS_LIBS) \
$(MSDK_LIBS) \
$(LIBMFX_LIBS) \
$(G_UDEV_LIBS)
......
......@@ -33,6 +33,9 @@
#include "gstmsdkbufferpool.h"
#include "gstmsdksystemmemory.h"
#include "gstmsdkvideomemory.h"
#ifndef _WIN32
#include "gstmsdkallocator_libva.h"
#endif
GST_DEBUG_CATEGORY_STATIC (gst_debug_msdkbufferpool);
#define GST_CAT_DEFAULT gst_debug_msdkbufferpool
......@@ -47,12 +50,19 @@ G_DEFINE_TYPE_WITH_CODE (GstMsdkBufferPool, gst_msdk_buffer_pool,
GST_DEBUG_CATEGORY_INIT (gst_debug_msdkbufferpool, "msdkbufferpool", 0,
"MSDK Buffer Pool"));
typedef enum _GstMsdkMemoryType
{
GST_MSDK_MEMORY_TYPE_SYSTEM,
GST_MSDK_MEMORY_TYPE_VIDEO,
GST_MSDK_MEMORY_TYPE_DMABUF,
} GstMsdkMemoryType;
struct _GstMsdkBufferPoolPrivate
{
GstMsdkContext *context;
GstAllocator *allocator;
mfxFrameAllocResponse *alloc_response;
gboolean use_video_memory;
GstMsdkMemoryType memory_type;
gboolean add_videometa;
};
......@@ -62,6 +72,7 @@ gst_msdk_buffer_pool_get_options (GstBufferPool * pool)
static const gchar *options[] = { GST_BUFFER_POOL_OPTION_VIDEO_META,
GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT,
GST_BUFFER_POOL_OPTION_MSDK_USE_VIDEO_MEMORY,
GST_BUFFER_POOL_OPTION_MSDK_USE_DMABUF,
NULL
};
......@@ -93,8 +104,9 @@ gst_msdk_buffer_pool_set_config (GstBufferPool * pool, GstStructure * config)
if (allocator
&& (g_strcmp0 (allocator->mem_type, GST_MSDK_SYSTEM_MEMORY_NAME) != 0
&& g_strcmp0 (allocator->mem_type, GST_MSDK_VIDEO_MEMORY_NAME) != 0
&& g_strcmp0 (allocator->mem_type,
GST_MSDK_VIDEO_MEMORY_NAME) != 0)) {
GST_MSDK_DMABUF_MEMORY_NAME) != 0)) {
GST_INFO_OBJECT (pool,
"This is not MSDK allocator. So this will be ignored");
gst_object_unref (allocator);
......@@ -113,20 +125,37 @@ gst_msdk_buffer_pool_set_config (GstBufferPool * pool, GstStructure * config)
gst_buffer_pool_config_set_video_alignment (config, &alignment);
}
priv->use_video_memory = gst_buffer_pool_config_has_option (config,
GST_BUFFER_POOL_OPTION_MSDK_USE_VIDEO_MEMORY);
if (gst_buffer_pool_config_has_option (config,
GST_BUFFER_POOL_OPTION_MSDK_USE_VIDEO_MEMORY))
priv->memory_type = GST_MSDK_MEMORY_TYPE_VIDEO;
if (priv->use_video_memory && (!priv->context || !priv->alloc_response)) {
if ((priv->memory_type | GST_MSDK_MEMORY_TYPE_VIDEO) && (!priv->context
|| !priv->alloc_response)) {
GST_ERROR_OBJECT (pool,
"No MSDK context or Allocation response for using video memory");
goto error_invalid_config;
}
if (gst_buffer_pool_config_has_option (config,
GST_BUFFER_POOL_OPTION_MSDK_USE_DMABUF))
priv->memory_type |= GST_MSDK_MEMORY_TYPE_DMABUF;
if (!(priv->memory_type & GST_MSDK_MEMORY_TYPE_VIDEO) &&
priv->memory_type & GST_MSDK_MEMORY_TYPE_DMABUF) {
GST_WARNING_OBJECT (pool,
"Can't use dmabuf since this is system msdk bufferpool");
priv->memory_type = GST_MSDK_MEMORY_TYPE_SYSTEM;
}
/* create a new allocator if needed */
if (!allocator) {
GstAllocationParams params = { 0, 31, 0, 0, };
if (priv->use_video_memory)
if (priv->memory_type & GST_MSDK_MEMORY_TYPE_DMABUF)
allocator =
gst_msdk_dmabuf_allocator_new (priv->context, &video_info,
priv->alloc_response);
else if (priv->memory_type & GST_MSDK_MEMORY_TYPE_VIDEO)
allocator =
gst_msdk_video_allocator_new (priv->context, &video_info,
priv->alloc_response);
......@@ -187,7 +216,9 @@ gst_msdk_buffer_pool_alloc_buffer (GstBufferPool * pool,
buf = gst_buffer_new ();
if (priv->use_video_memory)
if (priv->memory_type & GST_MSDK_MEMORY_TYPE_DMABUF)
mem = gst_msdk_dmabuf_memory_new (priv->allocator);
else if (priv->memory_type & GST_MSDK_MEMORY_TYPE_VIDEO)
mem = gst_msdk_video_memory_new (priv->allocator);
else
mem = gst_msdk_system_memory_new (priv->allocator);
......@@ -201,7 +232,9 @@ gst_msdk_buffer_pool_alloc_buffer (GstBufferPool * pool,
GstVideoMeta *vmeta;
GstVideoInfo *info;
if (priv->use_video_memory)
if (priv->memory_type & GST_MSDK_MEMORY_TYPE_DMABUF)
info = &GST_MSDK_DMABUF_ALLOCATOR_CAST (priv->allocator)->image_info;
else if (priv->memory_type & GST_MSDK_MEMORY_TYPE_VIDEO)
info = &GST_MSDK_VIDEO_ALLOCATOR_CAST (priv->allocator)->image_info;
else
info = &GST_MSDK_SYSTEM_ALLOCATOR_CAST (priv->allocator)->image_info;
......@@ -211,7 +244,8 @@ gst_msdk_buffer_pool_alloc_buffer (GstBufferPool * pool,
GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info),
GST_VIDEO_INFO_N_PLANES (info), info->offset, info->stride);
if (priv->use_video_memory) {
if ((priv->memory_type & GST_MSDK_MEMORY_TYPE_VIDEO) &&
!(priv->memory_type & GST_MSDK_MEMORY_TYPE_DMABUF)) {
vmeta->map = gst_video_meta_map_msdk_memory;
vmeta->unmap = gst_video_meta_unmap_msdk_memory;
}
......@@ -236,6 +270,7 @@ gst_msdk_buffer_pool_acquire_buffer (GstBufferPool * pool,
GstBuffer *buf = NULL;
GstFlowReturn ret;
mfxFrameSurface1 *surface;
gint fd;
ret =
GST_BUFFER_POOL_CLASS (parent_class)->acquire_buffer (pool, &buf, params);
......@@ -245,7 +280,7 @@ gst_msdk_buffer_pool_acquire_buffer (GstBufferPool * pool,
* So we need to confirm if it's unlocked every time a gst buffer is acquired.
* If it's still locked, we can replace it with new unlocked/unused surface.
*/
if (ret != GST_FLOW_OK || !priv->use_video_memory) {
if (ret != GST_FLOW_OK || priv->memory_type == GST_MSDK_MEMORY_TYPE_SYSTEM) {
if (buf)
*out_buffer_ptr = buf;
return ret;
......@@ -259,6 +294,23 @@ gst_msdk_buffer_pool_acquire_buffer (GstBufferPool * pool,
return GST_FLOW_ERROR;
}
}
#ifndef _WIN32
/* When using dmabuf, we should confirm that the fd of memeory and
* the fd of surface match, since there is no guarantee that fd matches
* between surface and memory.
*/
if (priv->memory_type & GST_MSDK_MEMORY_TYPE_DMABUF) {
surface = gst_msdk_get_surface_from_buffer (buf);
gst_msdk_get_dmabuf_info_from_surface (surface, &fd, NULL);
if (gst_dmabuf_memory_get_fd (gst_buffer_peek_memory (buf, 0)) != fd) {
GstMemory *mem;
mem = gst_msdk_dmabuf_memory_new_with_surface (priv->allocator, surface);
gst_buffer_replace_memory (buf, 0, mem);
gst_buffer_unset_flags (buf, GST_BUFFER_FLAG_TAG_MEMORY);
}
}
#endif
*out_buffer_ptr = buf;
return GST_FLOW_OK;
......@@ -271,7 +323,7 @@ gst_msdk_buffer_pool_release_buffer (GstBufferPool * pool, GstBuffer * buf)
GstMsdkBufferPool *msdk_pool = GST_MSDK_BUFFER_POOL_CAST (pool);
GstMsdkBufferPoolPrivate *priv = msdk_pool->priv;
if (!priv->use_video_memory)
if (priv->memory_type == GST_MSDK_MEMORY_TYPE_SYSTEM)
goto done;
surface = gst_msdk_get_surface_from_buffer (buf);
......
......@@ -63,6 +63,7 @@ typedef struct _GstMsdkBufferPoolPrivate GstMsdkBufferPoolPrivate;
* MsdkSystemAllocator or MsdkVideoAllocator.
*/
#define GST_BUFFER_POOL_OPTION_MSDK_USE_VIDEO_MEMORY "GstBufferPoolOptionMsdkUseVideoMemory"
#define GST_BUFFER_POOL_OPTION_MSDK_USE_DMABUF "GstBufferPoolOptionMsdkUseDMABuf"
/**
* GstMsdkBufferPool:
......
......@@ -36,25 +36,47 @@
#include "gstmsdkvideomemory.h"
#include "gstmsdkallocator.h"
#define GST_MSDK_BUFFER_SURFACE gst_msdk_buffer_surface_quark_get ()
static GQuark
gst_msdk_buffer_surface_quark_get (void)
{
static gsize g_quark;
if (g_once_init_enter (&g_quark)) {
gsize quark = (gsize) g_quark_from_static_string ("GstMsdkBufferSurface");
g_once_init_leave (&g_quark, quark);
}
return g_quark;
}
static mfxFrameSurface1 *
gst_msdk_video_allocator_get_surface (GstAllocator * allocator)
{
mfxFrameInfo frame_info = { {0,}, 0, };
mfxFrameSurface1 *surface;
GstMsdkVideoAllocator *msdk_video_allocator =
GST_MSDK_VIDEO_ALLOCATOR_CAST (allocator);
GstMsdkContext *context = NULL;
mfxFrameAllocResponse *resp = NULL;
GstVideoInfo *vinfo = NULL;
if (GST_IS_MSDK_VIDEO_ALLOCATOR (allocator)) {
context = GST_MSDK_VIDEO_ALLOCATOR_CAST (allocator)->context;
resp = GST_MSDK_VIDEO_ALLOCATOR_CAST (allocator)->alloc_response;
vinfo = &GST_MSDK_VIDEO_ALLOCATOR_CAST (allocator)->image_info;
} else if (GST_IS_MSDK_DMABUF_ALLOCATOR (allocator)) {
context = GST_MSDK_DMABUF_ALLOCATOR_CAST (allocator)->context;
resp = GST_MSDK_DMABUF_ALLOCATOR_CAST (allocator)->alloc_response;
vinfo = &GST_MSDK_DMABUF_ALLOCATOR_CAST (allocator)->image_info;
} else {
return NULL;
}
surface =
gst_msdk_context_get_surface_available (msdk_video_allocator->context,
msdk_video_allocator->alloc_response);
surface = gst_msdk_context_get_surface_available (context, resp);
if (!surface) {
GST_ERROR ("failed to get surface available");
return NULL;
}
gst_msdk_set_mfx_frame_info_from_video_info (&frame_info,
&msdk_video_allocator->image_info);
gst_msdk_set_mfx_frame_info_from_video_info (&frame_info, vinfo);
surface->Info = frame_info;
return surface;
......@@ -64,15 +86,21 @@ gboolean
gst_msdk_video_memory_get_surface_available (GstMemory * mem)
{
GstAllocator *allocator;
GstMsdkVideoMemory *msdk_mem;
mfxFrameSurface1 *surface;
g_return_val_if_fail (mem, FALSE);
g_return_val_if_fail (GST_IS_MSDK_VIDEO_MEMORY (mem), FALSE);
msdk_mem = GST_MSDK_VIDEO_MEMORY_CAST (mem);
allocator = mem->allocator;
msdk_mem->surface = gst_msdk_video_allocator_get_surface (allocator);
return msdk_mem->surface ? TRUE : FALSE;
surface = gst_msdk_video_allocator_get_surface (allocator);
if (GST_IS_MSDK_VIDEO_ALLOCATOR (allocator)) {
GST_MSDK_VIDEO_MEMORY_CAST (mem)->surface = surface;
} else if (GST_IS_MSDK_DMABUF_ALLOCATOR (allocator)) {
gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (mem),
GST_MSDK_BUFFER_SURFACE, surface, NULL);
}
return surface ? TRUE : FALSE;
}
/*
......@@ -83,26 +111,39 @@ gst_msdk_video_memory_get_surface_available (GstMemory * mem)
void
gst_msdk_video_memory_release_surface (GstMemory * mem)
{
GstMsdkVideoAllocator *msdk_video_allocator;
GstMsdkVideoMemory *msdk_mem;
mfxFrameSurface1 *surface = NULL;
GstMsdkContext *context = NULL;
mfxFrameAllocResponse *alloc_response = NULL;
g_return_if_fail (mem);
g_return_if_fail (GST_IS_MSDK_VIDEO_MEMORY (mem));
msdk_mem = GST_MSDK_VIDEO_MEMORY_CAST (mem);
msdk_video_allocator = GST_MSDK_VIDEO_ALLOCATOR_CAST (mem->allocator);
if (!msdk_mem->surface)
if (GST_IS_MSDK_VIDEO_ALLOCATOR (mem->allocator)) {
surface = GST_MSDK_VIDEO_MEMORY_CAST (mem)->surface;
context = GST_MSDK_VIDEO_ALLOCATOR_CAST (mem->allocator)->context;
alloc_response =
GST_MSDK_VIDEO_ALLOCATOR_CAST (mem->allocator)->alloc_response;
} else if (GST_IS_MSDK_DMABUF_ALLOCATOR (mem->allocator)) {
surface =
gst_mini_object_get_qdata (GST_MINI_OBJECT (mem),
GST_MSDK_BUFFER_SURFACE);
context = GST_MSDK_DMABUF_ALLOCATOR_CAST (mem->allocator)->context;
alloc_response =
GST_MSDK_DMABUF_ALLOCATOR_CAST (mem->allocator)->alloc_response;
} else {
return;
}
if (msdk_mem->surface->Data.Locked > 0)
gst_msdk_context_put_surface_locked (msdk_video_allocator->context,
msdk_video_allocator->alloc_response, msdk_mem->surface);
if (surface->Data.Locked > 0)
gst_msdk_context_put_surface_locked (context, alloc_response, surface);
else
gst_msdk_context_put_surface_available (msdk_video_allocator->context,
msdk_video_allocator->alloc_response, msdk_mem->surface);
gst_msdk_context_put_surface_available (context, alloc_response, surface);
if (GST_IS_MSDK_VIDEO_ALLOCATOR (mem->allocator))
GST_MSDK_VIDEO_MEMORY_CAST (mem)->surface = NULL;
else if (GST_IS_MSDK_DMABUF_ALLOCATOR (mem->allocator))
gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (mem),
GST_MSDK_BUFFER_SURFACE, NULL, NULL);
msdk_mem->surface = NULL;
return;
}
......@@ -326,3 +367,108 @@ gst_msdk_video_allocator_new (GstMsdkContext * context,
return GST_ALLOCATOR_CAST (allocator);
}
/* GstMsdkDmaBufMemory */
GstMemory *
gst_msdk_dmabuf_memory_new (GstAllocator * base_allocator)
{
#ifndef _WIN32
mfxFrameSurface1 *surface;
g_return_val_if_fail (base_allocator, NULL);
g_return_val_if_fail (GST_IS_MSDK_DMABUF_ALLOCATOR (base_allocator), NULL);
surface = gst_msdk_video_allocator_get_surface (base_allocator);
if (!surface)
return NULL;
return gst_msdk_dmabuf_memory_new_with_surface (base_allocator, surface);
#else
return NULL;
#endif
}
GstMemory *
gst_msdk_dmabuf_memory_new_with_surface (GstAllocator * allocator,
mfxFrameSurface1 * surface)
{
#ifndef _WIN32
GstMemory *mem;
GstMsdkMemoryID *mem_id;
gint fd;
gsize size;
g_return_val_if_fail (allocator, NULL);
g_return_val_if_fail (GST_IS_MSDK_DMABUF_ALLOCATOR (allocator), NULL);
mem_id = surface->Data.MemId;
fd = mem_id->info.handle;
size = mem_id->info.mem_size;
if (fd < 0 || (fd = dup (fd)) < 0) {
GST_ERROR ("Failed to get dmabuf handle");
return NULL;
}
mem = gst_dmabuf_allocator_alloc (allocator, fd, size);
if (!mem) {
GST_ERROR ("failed ! dmabuf fd: %d", fd);
return NULL;
}
gst_mini_object_set_qdata (GST_MINI_OBJECT_CAST (mem),
GST_MSDK_BUFFER_SURFACE, surface, NULL);
return mem;
#else
return NULL;
#endif
}
/* GstMsdkDmaBufAllocator */
G_DEFINE_TYPE (GstMsdkDmaBufAllocator, gst_msdk_dmabuf_allocator,
GST_TYPE_DMABUF_ALLOCATOR);
static void
gst_msdk_dmabuf_allocator_finalize (GObject * object)
{
GstMsdkDmaBufAllocator *allocator = GST_MSDK_DMABUF_ALLOCATOR_CAST (object);
gst_object_unref (allocator->context);
G_OBJECT_CLASS (gst_msdk_dmabuf_allocator_parent_class)->finalize (object);
}
static void
gst_msdk_dmabuf_allocator_class_init (GstMsdkDmaBufAllocatorClass * klass)
{
GObjectClass *const object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gst_msdk_dmabuf_allocator_finalize;
}
static void
gst_msdk_dmabuf_allocator_init (GstMsdkDmaBufAllocator * allocator)
{
GstAllocator *const base_allocator = GST_ALLOCATOR_CAST (allocator);
base_allocator->mem_type = GST_MSDK_DMABUF_MEMORY_NAME;
}
GstAllocator *
gst_msdk_dmabuf_allocator_new (GstMsdkContext * context,
GstVideoInfo * image_info, mfxFrameAllocResponse * alloc_resp)
{
GstMsdkDmaBufAllocator *allocator;
g_return_val_if_fail (context != NULL, NULL);
g_return_val_if_fail (image_info != NULL, NULL);
allocator = g_object_new (GST_TYPE_MSDK_DMABUF_ALLOCATOR, NULL);
if (!allocator)
return NULL;
allocator->context = gst_object_ref (context);
allocator->image_info = *image_info;
allocator->alloc_response = alloc_resp;
return GST_ALLOCATOR_CAST (allocator);
}
......@@ -36,12 +36,15 @@
#include "msdk.h"
#include "gstmsdkcontext.h"
#include "gstmsdkallocator.h"
#include <gst/allocators/allocators.h>
G_BEGIN_DECLS
typedef struct _GstMsdkVideoMemory GstMsdkVideoMemory;
typedef struct _GstMsdkVideoAllocator GstMsdkVideoAllocator;
typedef struct _GstMsdkVideoAllocatorClass GstMsdkVideoAllocatorClass;
typedef struct _GstMsdkDmaBufAllocator GstMsdkDmaBufAllocator;
typedef struct _GstMsdkDmaBufAllocatorClass GstMsdkDmaBufAllocatorClass;
/* ---------------------------------------------------------------------*/
/* GstMsdkVideoMemory */
......@@ -131,6 +134,62 @@ GType gst_msdk_video_allocator_get_type (void);
GstAllocator * gst_msdk_video_allocator_new (GstMsdkContext * context,
GstVideoInfo *image_info, mfxFrameAllocResponse * alloc_resp);
/* ---------------------------------------------------------------------*/
/* GstMsdkDmaBufMemory */
/* ---------------------------------------------------------------------*/
#define GST_MSDK_DMABUF_MEMORY_NAME "GstMsdkDmaBufMemory"
GstMemory *
gst_msdk_dmabuf_memory_new (GstAllocator * allocator);
GstMemory *
gst_msdk_dmabuf_memory_new_with_surface (GstAllocator * base_allocator, mfxFrameSurface1 * surface);
/* ---------------------------------------------------------------------*/
/* GstMsdkDmaBufAllocator */
/* ---------------------------------------------------------------------*/
#define GST_MSDK_DMABUF_ALLOCATOR_CAST(allocator) \
((GstMsdkDmaBufAllocator *) (allocator))
#define GST_TYPE_MSDK_DMABUF_ALLOCATOR \
(gst_msdk_dmabuf_allocator_get_type ())
#define GST_MSDK_DMABUF_ALLOCATOR(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MSDK_DMABUF_ALLOCATOR, \
GstMsdkDmaBufAllocator))
#define GST_IS_MSDK_DMABUF_ALLOCATOR(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MSDK_DMABUF_ALLOCATOR))
/*
* GstMsdkDmaBufAllocator:
*
* A MSDK DMABuf memory allocator object.
*/
struct _GstMsdkDmaBufAllocator
{
GstDmaBufAllocator parent_instance;
GstMsdkContext *context;
GstVideoInfo image_info;
mfxFrameAllocResponse *alloc_response;
};
/*
* GstMsdkDmaBufAllocatorClass:
*
* A MSDK DMABuf memory allocator class.
*/
struct _GstMsdkDmaBufAllocatorClass
{
GstDmaBufAllocatorClass parent_class;
};
GType gst_msdk_dmabuf_allocator_get_type (void);
GstAllocator * gst_msdk_dmabuf_allocator_new (GstMsdkContext * context,
GstVideoInfo *image_info, mfxFrameAllocResponse * alloc_resp);
G_END_DECLS
#endif /* GST_MSDK_VIDEO_MEMORY_H */
......@@ -55,7 +55,7 @@ if msdk_root != ''
msdk_sources,
c_args : gst_plugins_bad_args,
include_directories : [configinc],
dependencies : [gstbase_dep, gstvideo_dep, gstpbutils_dep, msdk_dep],
dependencies : [gstbase_dep, gstvideo_dep, gstpbutils_dep, gstallocators_dep, msdk_dep],
install : true,
install_dir : plugins_install_dir,
)
......
......@@ -283,7 +283,8 @@ gst_msdk_is_msdk_buffer (GstBuffer * buf)
allocator = GST_MEMORY_CAST (mem)->allocator;
if (allocator && (GST_IS_MSDK_VIDEO_ALLOCATOR (allocator) ||
GST_IS_MSDK_SYSTEM_ALLOCATOR (allocator)))
GST_IS_MSDK_SYSTEM_ALLOCATOR (allocator) ||
GST_IS_MSDK_DMABUF_ALLOCATOR (allocator)))
return TRUE;
else
return FALSE;
......@@ -299,6 +300,12 @@ gst_msdk_get_surface_from_buffer (GstBuffer * buf)
if (GST_IS_MSDK_VIDEO_ALLOCATOR (allocator))
return GST_MSDK_VIDEO_MEMORY_CAST (mem)->surface;
else
else if (GST_IS_MSDK_SYSTEM_ALLOCATOR (allocator))
return GST_MSDK_SYSTEM_MEMORY_CAST (mem)->surface;
else if (GST_IS_MSDK_DMABUF_ALLOCATOR (allocator)) {
return gst_mini_object_get_qdata (GST_MINI_OBJECT (mem),
g_quark_from_static_string ("GstMsdkBufferSurface"));
}
return NULL;
}
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