gstreamer/sys/va/gstvaallocator.c

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/* GStreamer
* Copyright (C) 2020 Igalia, S.L.
* Author: Víctor Jáquez <vjaquez@igalia.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstvaallocator.h"
#include <sys/types.h>
#include <unistd.h>
#include <va/va_drmcommon.h>
#include "gstvacaps.h"
#include "gstvavideoformat.h"
#define GST_CAT_DEFAULT gst_va_memory_debug
GST_DEBUG_CATEGORY_STATIC (gst_va_memory_debug);
static void
_init_debug_category (void)
{
#ifndef GST_DISABLE_GST_DEBUG
static volatile gsize _init = 0;
if (g_once_init_enter (&_init)) {
GST_DEBUG_CATEGORY_INIT (gst_va_memory_debug, "vamemory", 0, "VA memory");
g_once_init_leave (&_init, 1);
}
#endif
}
static gboolean
_destroy_surfaces (GstVaDisplay * display, VASurfaceID * surfaces,
gint num_surfaces)
{
VADisplay dpy = gst_va_display_get_va_dpy (display);
VAStatus status;
g_return_val_if_fail (num_surfaces > 0, FALSE);
gst_va_display_lock (display);
status = vaDestroySurfaces (dpy, surfaces, num_surfaces);
gst_va_display_unlock (display);
if (status != VA_STATUS_SUCCESS) {
GST_ERROR ("vaDestroySurfaces: %s", vaErrorStr (status));
return FALSE;
}
return TRUE;
}
static gboolean
_create_surfaces (GstVaDisplay * display, guint rt_format, guint fourcc,
guint width, guint height, gint usage_hint,
VASurfaceAttribExternalBuffers * ext_buf, VASurfaceID * surfaces,
guint num_surfaces)
{
VADisplay dpy = gst_va_display_get_va_dpy (display);
/* *INDENT-OFF* */
VASurfaceAttrib attrs[5] = {
{
.type = VASurfaceAttribUsageHint,
.flags = VA_SURFACE_ATTRIB_SETTABLE,
.value.type = VAGenericValueTypeInteger,
.value.value.i = usage_hint,
},
{
.type = VASurfaceAttribMemoryType,
.flags = VA_SURFACE_ATTRIB_SETTABLE,
.value.type = VAGenericValueTypeInteger,
.value.value.i = ext_buf ? VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME
: VA_SURFACE_ATTRIB_MEM_TYPE_VA,
},
};
/* *INDENT-ON* */
VAStatus status;
guint num_attrs = 2;
g_return_val_if_fail (num_surfaces > 0, FALSE);
if (fourcc > 0) {
/* *INDENT-OFF* */
attrs[num_attrs++] = (VASurfaceAttrib) {
.type = VASurfaceAttribPixelFormat,
.flags = VA_SURFACE_ATTRIB_SETTABLE,
.value.type = VAGenericValueTypeInteger,
.value.value.i = fourcc,
};
/* *INDENT-ON* */
}
if (ext_buf) {
/* *INDENT-OFF* */
attrs[num_attrs++] = (VASurfaceAttrib) {
.type = VASurfaceAttribExternalBufferDescriptor,
.flags = VA_SURFACE_ATTRIB_SETTABLE,
.value.type = VAGenericValueTypePointer,
.value.value.p = ext_buf,
};
/* *INDENT-ON* */
}
gst_va_display_lock (display);
status = vaCreateSurfaces (dpy, rt_format, width, height, surfaces,
num_surfaces, attrs, num_attrs);
gst_va_display_unlock (display);
if (status != VA_STATUS_SUCCESS) {
GST_ERROR ("vaCreateSurfaces: %s", vaErrorStr (status));
return FALSE;
}
return TRUE;
}
static gboolean
_export_surface_to_dmabuf (GstVaDisplay * display, VASurfaceID surface,
guint32 flags, VADRMPRIMESurfaceDescriptor * desc)
{
VADisplay dpy = gst_va_display_get_va_dpy (display);
VAStatus status;
gst_va_display_lock (display);
status = vaExportSurfaceHandle (dpy, surface,
VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2, flags, desc);
gst_va_display_unlock (display);
if (status != VA_STATUS_SUCCESS) {
GST_ERROR ("vaExportSurfaceHandle: %s", vaErrorStr (status));
return FALSE;
}
return TRUE;
}
static gboolean
_destroy_image (GstVaDisplay * display, VAImageID image_id)
{
VADisplay dpy = gst_va_display_get_va_dpy (display);
VAStatus status;
gst_va_display_lock (display);
status = vaDestroyImage (dpy, image_id);
gst_va_display_unlock (display);
if (status != VA_STATUS_SUCCESS) {
GST_ERROR ("vaDestroyImage: %s", vaErrorStr (status));
return FALSE;
}
return TRUE;
}
static gboolean
_get_derive_image (GstVaDisplay * display, VASurfaceID surface, VAImage * image)
{
VADisplay dpy = gst_va_display_get_va_dpy (display);
VAStatus status;
gst_va_display_lock (display);
status = vaDeriveImage (dpy, surface, image);
gst_va_display_unlock (display);
if (status != VA_STATUS_SUCCESS) {
GST_WARNING ("vaDeriveImage: %s", vaErrorStr (status));
return FALSE;
}
return TRUE;
}
static gboolean
_create_image (GstVaDisplay * display, GstVideoFormat format, gint width,
gint height, VAImage * image)
{
VADisplay dpy = gst_va_display_get_va_dpy (display);
const VAImageFormat *va_format;
VAStatus status;
va_format = gst_va_image_format_from_video_format (format);
if (!va_format)
return FALSE;
gst_va_display_lock (display);
status =
vaCreateImage (dpy, (VAImageFormat *) va_format, width, height, image);
gst_va_display_unlock (display);
if (status != VA_STATUS_SUCCESS) {
GST_ERROR ("vaCreateImage: %s", vaErrorStr (status));
return FALSE;
}
return TRUE;
}
static gboolean
_get_image (GstVaDisplay * display, VASurfaceID surface, VAImage * image)
{
VADisplay dpy = gst_va_display_get_va_dpy (display);
VAStatus status;
gst_va_display_lock (display);
status = vaGetImage (dpy, surface, 0, 0, image->width, image->height,
image->image_id);
gst_va_display_unlock (display);
if (status != VA_STATUS_SUCCESS) {
GST_ERROR ("vaGetImage: %s", vaErrorStr (status));
return FALSE;
}
return TRUE;
}
static gboolean
_sync_surface (GstVaDisplay * display, VASurfaceID surface)
{
VADisplay dpy = gst_va_display_get_va_dpy (display);
VAStatus status;
gst_va_display_lock (display);
status = vaSyncSurface (dpy, surface);
gst_va_display_unlock (display);
if (status != VA_STATUS_SUCCESS) {
GST_WARNING ("vaSyncSurface: %s", vaErrorStr (status));
return FALSE;
}
return TRUE;
}
static gboolean
_map_buffer (GstVaDisplay * display, VABufferID buffer, gpointer * data)
{
VADisplay dpy = gst_va_display_get_va_dpy (display);
VAStatus status;
gst_va_display_lock (display);
status = vaMapBuffer (dpy, buffer, data);
gst_va_display_unlock (display);
if (status != VA_STATUS_SUCCESS) {
GST_WARNING ("vaMapBuffer: %s", vaErrorStr (status));
return FALSE;
}
return TRUE;
}
static gboolean
_unmap_buffer (GstVaDisplay * display, VABufferID buffer)
{
VADisplay dpy = gst_va_display_get_va_dpy (display);
VAStatus status;
gst_va_display_lock (display);
status = vaUnmapBuffer (dpy, buffer);
gst_va_display_unlock (display);
if (status != VA_STATUS_SUCCESS) {
GST_WARNING ("vaUnmapBuffer: %s", vaErrorStr (status));
return FALSE;
}
return TRUE;
}
static gboolean
_put_image (GstVaDisplay * display, VASurfaceID surface, VAImage * image)
{
VADisplay dpy = gst_va_display_get_va_dpy (display);
VAStatus status;
if (!_sync_surface (display, surface))
return FALSE;
gst_va_display_lock (display);
status = vaPutImage (dpy, surface, image->image_id, 0, 0, image->width,
image->height, 0, 0, image->width, image->height);
gst_va_display_unlock (display);
if (status != VA_STATUS_SUCCESS) {
GST_ERROR ("vaPutImage: %s", vaErrorStr (status));
return FALSE;
}
return TRUE;
}
/*=========================== Quarks for GstMemory ===========================*/
static GQuark
gst_va_buffer_surface_quark (void)
{
static gsize surface_quark = 0;
if (g_once_init_enter (&surface_quark)) {
GQuark quark = g_quark_from_string ("GstVaBufferSurface");
g_once_init_leave (&surface_quark, quark);
}
return surface_quark;
}
static GQuark
gst_va_drm_mod_quark (void)
{
static gsize drm_mod_quark = 0;
if (g_once_init_enter (&drm_mod_quark)) {
GQuark quark = g_quark_from_string ("DRMModifier");
g_once_init_leave (&drm_mod_quark, quark);
}
return drm_mod_quark;
}
/*========================= GstVaBufferSurface ===============================*/
typedef struct _GstVaBufferSurface GstVaBufferSurface;
struct _GstVaBufferSurface
{
GstVaDisplay *display;
VASurfaceID surface;
volatile gint ref_count;
};
static void
gst_va_buffer_surface_unref (gpointer data)
{
GstVaBufferSurface *buf = data;
g_return_if_fail (buf && GST_IS_VA_DISPLAY (buf->display));
if (g_atomic_int_dec_and_test (&buf->ref_count)) {
GST_LOG_OBJECT (buf->display, "Destroying surface %#x", buf->surface);
_destroy_surfaces (buf->display, &buf->surface, 1);
gst_clear_object (&buf->display);
g_slice_free (GstVaBufferSurface, buf);
}
}
static GstVaBufferSurface *
gst_va_buffer_surface_new (VASurfaceID surface, GstVideoFormat format,
gint width, gint height)
{
GstVaBufferSurface *buf = g_slice_new (GstVaBufferSurface);
g_atomic_int_set (&buf->ref_count, 0);
buf->surface = surface;
buf->display = NULL;
return buf;
}
/*=========================== GstVaMemoryPool ================================*/
/* queue for disposed surfaces */
typedef struct _GstVaMemoryPool GstVaMemoryPool;
struct _GstVaMemoryPool
{
GstAtomicQueue *queue;
gint surface_count;
GMutex lock;
GCond cond;
gboolean flushing;
};
#define GST_VA_MEMORY_POOL_CAST(obj) ((GstVaMemoryPool *)obj)
#define GST_VA_MEMORY_POOL_LOCK(obj) g_mutex_lock (&GST_VA_MEMORY_POOL_CAST(obj)->lock)
#define GST_VA_MEMORY_POOL_UNLOCK(obj) g_mutex_unlock (&GST_VA_MEMORY_POOL_CAST(obj)->lock)
static void
gst_va_memory_pool_init (GstVaMemoryPool * self)
{
self->queue = gst_atomic_queue_new (2);
g_mutex_init (&self->lock);
g_cond_init (&self->cond);
self->flushing = FALSE;
self->surface_count = 0;
}
static void
gst_va_memory_pool_finalize (GstVaMemoryPool * self)
{
g_mutex_clear (&self->lock);
g_cond_clear (&self->cond);
gst_atomic_queue_unref (self->queue);
}
static void
gst_va_memory_pool_flush_unlocked (GstVaMemoryPool * self,
GstVaDisplay * display)
{
GstMemory *mem;
GstVaBufferSurface *buf;
while ((mem = gst_atomic_queue_pop (self->queue))) {
/* destroy the surface */
buf = gst_mini_object_get_qdata (GST_MINI_OBJECT (mem),
gst_va_buffer_surface_quark ());
if (buf) {
if (g_atomic_int_dec_and_test (&buf->ref_count)) {
GST_LOG ("Destroying surface %#x", buf->surface);
_destroy_surfaces (display, &buf->surface, 1);
self->surface_count -= 1; /* GstVaDmabufAllocator */
g_slice_free (GstVaBufferSurface, buf);
}
} else {
self->surface_count -= 1; /* GstVaAllocator */
}
GST_MINI_OBJECT_CAST (mem)->dispose = NULL;
/* when mem are pushed available queue its allocator is unref,
* then now it is required to ref the allocator here because
* memory's finalize will unref it again */
gst_object_ref (mem->allocator);
gst_memory_unref (mem);
}
}
static void
gst_va_memory_pool_flush (GstVaMemoryPool * self, GstVaDisplay * display)
{
GST_VA_MEMORY_POOL_LOCK (self);
self->flushing = TRUE;
gst_va_memory_pool_flush_unlocked (self, display);
self->flushing = FALSE;
g_cond_broadcast (&self->cond);
GST_VA_MEMORY_POOL_UNLOCK (self);
}
static inline void
gst_va_memory_pool_push (GstVaMemoryPool * self, GstMemory * mem)
{
GST_VA_MEMORY_POOL_LOCK (self);
gst_atomic_queue_push (self->queue, gst_memory_ref (mem));
g_cond_signal (&self->cond);
GST_VA_MEMORY_POOL_UNLOCK (self);
}
static inline GstMemory *
gst_va_memory_pool_pop (GstVaMemoryPool * self)
{
return gst_atomic_queue_pop (self->queue);
}
static inline GstMemory *
gst_va_memory_pool_peek (GstVaMemoryPool * self)
{
return gst_atomic_queue_peek (self->queue);
}
static gboolean
gst_va_memory_pool_wait_unlocked (GstVaMemoryPool * self)
{
while (gst_atomic_queue_length (self->queue) == 0 && !self->flushing)
g_cond_wait (&self->cond, &self->lock);
return !self->flushing;
}
static inline guint
gst_va_memory_pool_surface_count (GstVaMemoryPool * self)
{
return g_atomic_int_get (&self->surface_count);
}
static inline void
gst_va_memory_pool_surface_inc (GstVaMemoryPool * self)
{
g_atomic_int_inc (&self->surface_count);
}
/*=========================== GstVaDmabufAllocator ===========================*/
struct _GstVaDmabufAllocator
{
GstDmaBufAllocator parent;
GstVaDisplay *display;
GstMemoryMapFunction parent_map;
GstVideoInfo info;
guint usage_hint;
GstVaMemoryPool pool;
};
#define gst_va_dmabuf_allocator_parent_class dmabuf_parent_class
G_DEFINE_TYPE_WITH_CODE (GstVaDmabufAllocator, gst_va_dmabuf_allocator,
GST_TYPE_DMABUF_ALLOCATOR, _init_debug_category ());
static gpointer
gst_va_dmabuf_mem_map (GstMemory * gmem, gsize maxsize, GstMapFlags flags)
{
GstVaDmabufAllocator *self = GST_VA_DMABUF_ALLOCATOR (gmem->allocator);
VASurfaceID surface = gst_va_memory_get_surface (gmem);
_sync_surface (self->display, surface);
/* @TODO: if mapping with flag GST_MAP_VASURFACE return the
* VA_SURFACE_ID.
* if mapping and drm_modifers are not lineal, use vaDeriveImage */
#ifndef GST_DISABLE_GST_DEBUG
{
guint64 *drm_mod;
drm_mod = gst_mini_object_get_qdata (GST_MINI_OBJECT (gmem),
gst_va_drm_mod_quark ());
GST_TRACE_OBJECT (self, "DRM modifiers: %#lx", *drm_mod);
}
#endif
return self->parent_map (gmem, maxsize, flags);
}
static void
gst_va_dmabuf_allocator_finalize (GObject * object)
{
GstVaDmabufAllocator *self = GST_VA_DMABUF_ALLOCATOR (object);
gst_va_memory_pool_finalize (&self->pool);
gst_clear_object (&self->display);
G_OBJECT_CLASS (dmabuf_parent_class)->finalize (object);
}
static void
gst_va_dmabuf_allocator_dispose (GObject * object)
{
GstVaDmabufAllocator *self = GST_VA_DMABUF_ALLOCATOR (object);
gst_va_memory_pool_flush_unlocked (&self->pool, self->display);
if (gst_va_memory_pool_surface_count (&self->pool) != 0) {
GST_WARNING_OBJECT (self, "Surfaces leaked: %d",
gst_va_memory_pool_surface_count (&self->pool));
}
G_OBJECT_CLASS (dmabuf_parent_class)->dispose (object);
}
static void
gst_va_dmabuf_allocator_class_init (GstVaDmabufAllocatorClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = gst_va_dmabuf_allocator_dispose;
object_class->finalize = gst_va_dmabuf_allocator_finalize;
}
static void
gst_va_dmabuf_allocator_init (GstVaDmabufAllocator * self)
{
gst_va_memory_pool_init (&self->pool);
self->parent_map = GST_ALLOCATOR (self)->mem_map;
GST_ALLOCATOR (self)->mem_map = gst_va_dmabuf_mem_map;
}
GstAllocator *
gst_va_dmabuf_allocator_new (GstVaDisplay * display)
{
GstVaDmabufAllocator *self;
g_return_val_if_fail (GST_IS_VA_DISPLAY (display), NULL);
self = g_object_new (GST_TYPE_VA_DMABUF_ALLOCATOR, NULL);
self->display = gst_object_ref (display);
gst_object_ref_sink (self);
return GST_ALLOCATOR (self);
}
static inline goffset
_get_fd_size (gint fd)
{
return lseek (fd, 0, SEEK_END);
}
static gboolean
gst_va_dmabuf_memory_release (GstMiniObject * mini_object)
{
GstMemory *mem = GST_MEMORY_CAST (mini_object);
GstVaDmabufAllocator *self = GST_VA_DMABUF_ALLOCATOR (mem->allocator);
GST_LOG ("releasing %p", mem);
gst_va_memory_pool_push (&self->pool, mem);
/* Keep last in case we are holding on the last allocator ref */
gst_object_unref (mem->allocator);
/* don't call mini_object's free */
return FALSE;
}
/* Creates an exported VASurface and adds it as @buffer's memories
* qdata
*
* If @info is not NULL, a dummy (non-pooled) buffer is created to
* update offsets and strides, and it has to be unrefed immediately.
*/
static gboolean
gst_va_dmabuf_allocator_setup_buffer_full (GstAllocator * allocator,
GstBuffer * buffer, GstVideoInfo * info)
{
GstVaBufferSurface *buf;
GstVaDmabufAllocator *self = GST_VA_DMABUF_ALLOCATOR (allocator);
GstVideoFormat format;
VADRMPRIMESurfaceDescriptor desc = { 0, };
VASurfaceID surface;
guint32 i, fourcc, rt_format, export_flags;
GDestroyNotify buffer_destroy = NULL;
g_return_val_if_fail (GST_IS_VA_DMABUF_ALLOCATOR (allocator), FALSE);
format = GST_VIDEO_INFO_FORMAT (&self->info);
fourcc = gst_va_fourcc_from_video_format (format);
rt_format = gst_va_chroma_from_video_format (format);
if (fourcc == 0 || rt_format == 0) {
GST_ERROR_OBJECT (allocator, "Unsupported format: %s",
gst_video_format_to_string (GST_VIDEO_INFO_FORMAT (&self->info)));
return FALSE;
}
if (!_create_surfaces (self->display, rt_format, fourcc,
GST_VIDEO_INFO_WIDTH (&self->info),
GST_VIDEO_INFO_HEIGHT (&self->info), self->usage_hint, NULL,
&surface, 1))
return FALSE;
/* FIXME(victor): find a better way since this is just a hack for
* i965 driver */
if (fourcc == VA_FOURCC_YUY2 || fourcc == VA_FOURCC_UYVY) {
/* These are not representable as separate planes */
export_flags = VA_EXPORT_SURFACE_COMPOSED_LAYERS;
} else {
/* Each layer will contain exactly one plane. For example, an NV12
* surface will be exported as two layers */
export_flags = VA_EXPORT_SURFACE_SEPARATE_LAYERS;
}
export_flags |= VA_EXPORT_SURFACE_READ_WRITE;
if (!_export_surface_to_dmabuf (self->display, surface, export_flags, &desc))
goto failed;
g_assert (GST_VIDEO_INFO_N_PLANES (&self->info) == desc.num_layers);
if (fourcc != desc.fourcc) {
GST_ERROR ("Unsupported fourcc: %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (desc.fourcc));
goto failed;
}
buf = gst_va_buffer_surface_new (surface, format, desc.width, desc.height);
if (G_UNLIKELY (info)) {
*info = self->info;
GST_VIDEO_INFO_SIZE (info) = 0;
}
for (i = 0; i < desc.num_objects; i++) {
gint fd = desc.objects[i].fd;
gsize size = desc.objects[i].size > 0 ?
desc.objects[i].size : _get_fd_size (fd);
GstMemory *mem = gst_dmabuf_allocator_alloc (allocator, fd, size);
guint64 *drm_mod = g_new (guint64, 1);
gst_buffer_append_memory (buffer, mem);
if (G_LIKELY (!info)) {
GST_MINI_OBJECT (mem)->dispose = gst_va_dmabuf_memory_release;
} else {
/* if no @info, surface will be destroyed as soon as buffer is
* destroyed (e.g. gst_va_dmabuf_allocator_try()) */
buf->display = gst_object_ref (self->display);
buffer_destroy = gst_va_buffer_surface_unref;
}
g_atomic_int_add (&buf->ref_count, 1);
gst_mini_object_set_qdata (GST_MINI_OBJECT (mem),
gst_va_buffer_surface_quark (), buf, buffer_destroy);
*drm_mod = desc.objects[i].drm_format_modifier;
gst_mini_object_set_qdata (GST_MINI_OBJECT (mem), gst_va_drm_mod_quark (),
drm_mod, g_free);
if (G_UNLIKELY (info))
GST_VIDEO_INFO_SIZE (info) += size;
}
if (G_UNLIKELY (info)) {
for (i = 0; i < desc.num_layers; i++) {
g_assert (desc.layers[i].num_planes == 1);
GST_VIDEO_INFO_PLANE_OFFSET (info, i) = desc.layers[i].offset[0];
GST_VIDEO_INFO_PLANE_STRIDE (info, i) = desc.layers[i].pitch[0];
}
} else {
gst_va_memory_pool_surface_inc (&self->pool);
}
GST_LOG_OBJECT (self, "Created surface %#x [%dx%d] size %" G_GSIZE_FORMAT,
buf->surface, GST_VIDEO_INFO_WIDTH (&self->info),
GST_VIDEO_INFO_HEIGHT (&self->info), GST_VIDEO_INFO_SIZE (&self->info));
return TRUE;
failed:
{
_destroy_surfaces (self->display, &surface, 1);
return FALSE;
}
}
gboolean
gst_va_dmabuf_allocator_setup_buffer (GstAllocator * allocator,
GstBuffer * buffer)
{
return gst_va_dmabuf_allocator_setup_buffer_full (allocator, buffer, NULL);
}
static VASurfaceID
gst_va_dmabuf_allocator_prepare_buffer_unlocked (GstVaDmabufAllocator * self,
GstBuffer * buffer)
{
GstMemory *mem[GST_VIDEO_MAX_PLANES] = { 0, };
VASurfaceID surface;
gint j, idx = 1;
mem[0] = gst_va_memory_pool_pop (&self->pool);
if (!mem[0])
return VA_INVALID_ID;
surface = gst_va_memory_get_surface (mem[0]);
while (surface != VA_INVALID_ID) {
GstMemory *pmem;
VASurfaceID psurface;
pmem = gst_va_memory_pool_peek (&self->pool);
if (!pmem)
break;
psurface = gst_va_memory_get_surface (pmem);
if (psurface != surface)
break;
mem[idx++] = gst_va_memory_pool_pop (&self->pool);
};
/* append them in reverse order */
for (j = idx - 1; j >= 0; j--) {
gst_object_ref (mem[j]->allocator);
gst_buffer_append_memory (buffer, mem[j]);
}
return surface;
}
gboolean
gst_va_dmabuf_allocator_prepare_buffer (GstAllocator * allocator,
GstBuffer * buffer)
{
GstVaDmabufAllocator *self = GST_VA_DMABUF_ALLOCATOR (allocator);
VASurfaceID surface;
GST_VA_MEMORY_POOL_LOCK (&self->pool);
surface = gst_va_dmabuf_allocator_prepare_buffer_unlocked (self, buffer);
GST_VA_MEMORY_POOL_UNLOCK (&self->pool);
if (surface != VA_INVALID_ID) {
GST_TRACE_OBJECT (self, "Prepared surface %#x in buffer %p", surface,
buffer);
}
return (surface != VA_INVALID_ID);
}
gboolean
gst_va_dmabuf_allocator_wait_for_memory (GstAllocator * allocator,
GstBuffer * buffer)
{
GstVaDmabufAllocator *self = GST_VA_DMABUF_ALLOCATOR (allocator);
VASurfaceID surface;
GST_VA_MEMORY_POOL_LOCK (&self->pool);
if (!gst_va_memory_pool_wait_unlocked (&self->pool)) {
GST_VA_MEMORY_POOL_LOCK (&self->pool);
return FALSE;
}
surface = gst_va_dmabuf_allocator_prepare_buffer_unlocked (self, buffer);
GST_VA_MEMORY_POOL_UNLOCK (&self->pool);
if (surface != VA_INVALID_ID) {
GST_TRACE_OBJECT (self, "Prepared surface %#x in buffer %p", surface,
buffer);
}
return (surface != VA_INVALID_ID);
}
void
gst_va_dmabuf_allocator_flush (GstAllocator * allocator)
{
GstVaDmabufAllocator *self = GST_VA_DMABUF_ALLOCATOR (allocator);
gst_va_memory_pool_flush (&self->pool, self->display);
}
static gboolean
gst_va_dmabuf_allocator_try (GstAllocator * allocator)
{
GstBuffer *buffer;
GstVaDmabufAllocator *self = GST_VA_DMABUF_ALLOCATOR (allocator);
GstVideoInfo info = self->info;
gboolean ret;
buffer = gst_buffer_new ();
ret = gst_va_dmabuf_allocator_setup_buffer_full (allocator, buffer, &info);
gst_buffer_unref (buffer);
if (ret)
self->info = info;
return ret;
}
gboolean
gst_va_dmabuf_allocator_set_format (GstAllocator * allocator,
GstVideoInfo * info, guint usage_hint)
{
GstVaDmabufAllocator *self;
gboolean ret;
g_return_val_if_fail (GST_IS_VA_DMABUF_ALLOCATOR (allocator), FALSE);
g_return_val_if_fail (info, FALSE);
self = GST_VA_DMABUF_ALLOCATOR (allocator);
if (gst_va_memory_pool_surface_count (&self->pool) != 0) {
if (GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_INFO_FORMAT (&self->info)
&& GST_VIDEO_INFO_WIDTH (info) == GST_VIDEO_INFO_WIDTH (&self->info)
&& GST_VIDEO_INFO_HEIGHT (info) == GST_VIDEO_INFO_HEIGHT (&self->info)
&& usage_hint == self->usage_hint) {
*info = self->info; /* update callee info (offset & stride) */
return TRUE;
}
return FALSE;
}
self->usage_hint = usage_hint;
self->info = *info;
ret = gst_va_dmabuf_allocator_try (allocator);
if (ret)
*info = self->info;
return ret;
}
gboolean
gst_va_dmabuf_allocator_get_format (GstAllocator * allocator,
GstVideoInfo * info, guint * usage_hint)
{
GstVaDmabufAllocator *self = GST_VA_DMABUF_ALLOCATOR (allocator);
if (GST_VIDEO_INFO_FORMAT (&self->info) == GST_VIDEO_FORMAT_UNKNOWN)
return FALSE;
if (info)
*info = self->info;
if (usage_hint)
*usage_hint = self->usage_hint;
return TRUE;
}
/* XXX: use a surface pool to control the created surfaces */
gboolean
gst_va_dmabuf_memories_setup (GstVaDisplay * display, GstVideoInfo * info,
guint n_planes, GstMemory * mem[GST_VIDEO_MAX_PLANES],
uintptr_t * fds, gsize offset[GST_VIDEO_MAX_PLANES], guint usage_hint)
{
GstVideoFormat format;
GstVaBufferSurface *buf;
/* *INDENT-OFF* */
VASurfaceAttribExternalBuffers ext_buf = {
.width = GST_VIDEO_INFO_WIDTH (info),
.height = GST_VIDEO_INFO_HEIGHT (info),
.data_size = GST_VIDEO_INFO_SIZE (info),
.num_planes = GST_VIDEO_INFO_N_PLANES (info),
.buffers = fds,
.num_buffers = GST_VIDEO_INFO_N_PLANES (info),
};
/* *INDENT-ON* */
VASurfaceID surface;
guint32 fourcc, rt_format;
guint i;
gboolean ret;
g_return_val_if_fail (GST_IS_VA_DISPLAY (display), FALSE);
format = GST_VIDEO_INFO_FORMAT (info);
if (format == GST_VIDEO_FORMAT_UNKNOWN)
return FALSE;
rt_format = gst_va_chroma_from_video_format (format);
if (rt_format == 0)
return FALSE;
fourcc = gst_va_fourcc_from_video_format (format);
if (fourcc == 0)
return FALSE;
ext_buf.pixel_format = fourcc;
for (i = 0; i < MIN (n_planes, 4); i++) {
ext_buf.pitches[i] = GST_VIDEO_INFO_PLANE_STRIDE (info, i);
ext_buf.offsets[i] = offset[i];
}
ret = _create_surfaces (display, rt_format, ext_buf.pixel_format,
ext_buf.width, ext_buf.height, usage_hint, &ext_buf, &surface, 1);
if (!ret)
return FALSE;
GST_LOG_OBJECT (display, "Created surface %#x [%dx%d]", surface,
ext_buf.width, ext_buf.height);
buf = gst_va_buffer_surface_new (surface, rt_format, ext_buf.width,
ext_buf.height);
buf->display = gst_object_ref (display);
for (i = 0; i < n_planes; i++) {
g_atomic_int_add (&buf->ref_count, 1);
gst_mini_object_set_qdata (GST_MINI_OBJECT (mem[i]),
gst_va_buffer_surface_quark (), buf, gst_va_buffer_surface_unref);
GST_INFO_OBJECT (display, "setting surface %#x to dmabuf fd %d",
buf->surface, gst_dmabuf_memory_get_fd (mem[i]));
}
return TRUE;
}
/*===================== GstVaAllocator / GstVaMemory =========================*/
struct _GstVaAllocator
{
GstAllocator parent;
GstVaDisplay *display;
gboolean use_derived;
GArray *surface_formats;
GstVideoFormat surface_format;
GstVideoFormat img_format;
guint32 fourcc;
guint32 rt_format;
GstVideoInfo info;
guint usage_hint;
GstVaMemoryPool pool;
};
typedef struct _GstVaMemory GstVaMemory;
struct _GstVaMemory
{
GstMemory mem;
VASurfaceID surface;
GstVideoFormat surface_format;
VAImage image;
gpointer mapped_data;
GstMapFlags prev_mapflags;
volatile gint map_count;
gboolean is_derived;
gboolean is_dirty;
GMutex lock;
};
G_DEFINE_TYPE_WITH_CODE (GstVaAllocator, gst_va_allocator, GST_TYPE_ALLOCATOR,
_init_debug_category ());
static gboolean _va_unmap (GstVaMemory * mem);
static void
gst_va_allocator_finalize (GObject * object)
{
GstVaAllocator *self = GST_VA_ALLOCATOR (object);
gst_va_memory_pool_finalize (&self->pool);
g_clear_pointer (&self->surface_formats, g_array_unref);
gst_clear_object (&self->display);
G_OBJECT_CLASS (gst_va_allocator_parent_class)->finalize (object);
}
static void
gst_va_allocator_dispose (GObject * object)
{
GstVaAllocator *self = GST_VA_ALLOCATOR (object);
gst_va_memory_pool_flush_unlocked (&self->pool, self->display);
if (gst_va_memory_pool_surface_count (&self->pool) != 0) {
GST_WARNING_OBJECT (self, "Surfaces leaked: %d",
gst_va_memory_pool_surface_count (&self->pool));
}
G_OBJECT_CLASS (gst_va_allocator_parent_class)->dispose (object);
}
static void
_va_free (GstAllocator * allocator, GstMemory * mem)
{
GstVaAllocator *self = GST_VA_ALLOCATOR (allocator);
GstVaMemory *va_mem = (GstVaMemory *) mem;
if (va_mem->mapped_data) {
g_warning (G_STRLOC ":%s: Freeing memory %p still mapped", G_STRFUNC,
va_mem);
_va_unmap (va_mem);
}
if (va_mem->surface != VA_INVALID_ID && mem->parent == NULL) {
GST_LOG_OBJECT (self, "Destroying surface %#x", va_mem->surface);
_destroy_surfaces (self->display, &va_mem->surface, 1);
}
g_mutex_clear (&va_mem->lock);
g_slice_free (GstVaMemory, va_mem);
}
static void
gst_va_allocator_class_init (GstVaAllocatorClass * klass)
{
GstAllocatorClass *allocator_class = GST_ALLOCATOR_CLASS (klass);
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = gst_va_allocator_dispose;
object_class->finalize = gst_va_allocator_finalize;
allocator_class->free = _va_free;
}
static inline void
_clean_mem (GstVaMemory * mem)
{
memset (&mem->image, 0, sizeof (mem->image));
mem->image.image_id = VA_INVALID_ID;
mem->image.buf = VA_INVALID_ID;
mem->is_derived = TRUE;
mem->is_dirty = FALSE;
mem->prev_mapflags = 0;
mem->mapped_data = NULL;
}
static void
_reset_mem (GstVaMemory * mem, GstAllocator * allocator, gsize size)
{
_clean_mem (mem);
g_atomic_int_set (&mem->map_count, 0);
g_mutex_init (&mem->lock);
gst_memory_init (GST_MEMORY_CAST (mem), 0, allocator, NULL, size,
0 /* align */ , 0 /* offset */ , size);
}
static inline gboolean
_ensure_image (GstVaDisplay * display, VASurfaceID surface,
GstVideoInfo * info, VAImage * image, gboolean derived)
{
gboolean ret = TRUE;
if (image->image_id != VA_INVALID_ID)
return TRUE;
if (!_sync_surface (display, surface))
return FALSE;
if (derived) {
ret = _get_derive_image (display, surface, image);
} else {
ret = _create_image (display, GST_VIDEO_INFO_FORMAT (info),
GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info), image);
}
return ret;
}
static inline gboolean
_update_image_info (GstVaAllocator * va_allocator)
{
VASurfaceID surface;
VAImage image = {.image_id = VA_INVALID_ID, };
gboolean derived;
guint i;
/* Create a test surface first */
if (!_create_surfaces (va_allocator->display, va_allocator->rt_format,
va_allocator->fourcc, GST_VIDEO_INFO_WIDTH (&va_allocator->info),
GST_VIDEO_INFO_HEIGHT (&va_allocator->info), va_allocator->usage_hint,
NULL, &surface, 1)) {
GST_ERROR_OBJECT (va_allocator, "Failed to create a test surface");
return FALSE;
}
GST_DEBUG_OBJECT (va_allocator, "Created surface %#x [%dx%d]", surface,
GST_VIDEO_INFO_WIDTH (&va_allocator->info),
GST_VIDEO_INFO_HEIGHT (&va_allocator->info));
/* Try derived first, but different formats can never derive */
if (va_allocator->surface_format == va_allocator->img_format) {
derived = TRUE;
if (_get_derive_image (va_allocator->display, surface, &image))
goto update;
}
/* Then we try to create a image. */
derived = FALSE;
if (!_create_image (va_allocator->display, va_allocator->img_format,
GST_VIDEO_INFO_WIDTH (&va_allocator->info),
GST_VIDEO_INFO_HEIGHT (&va_allocator->info), &image)) {
_destroy_surfaces (va_allocator->display, &surface, 1);
return FALSE;
}
update:
va_allocator->use_derived = derived;
for (i = 0; i < image.num_planes; i++) {
GST_VIDEO_INFO_PLANE_OFFSET (&va_allocator->info, i) = image.offsets[i];
GST_VIDEO_INFO_PLANE_STRIDE (&va_allocator->info, i) = image.pitches[i];
}
GST_VIDEO_INFO_SIZE (&va_allocator->info) = image.data_size;
_destroy_image (va_allocator->display, image.image_id);
_destroy_surfaces (va_allocator->display, &surface, 1);
return TRUE;
}
static gpointer
_va_map_unlocked (GstVaMemory * mem, GstMapFlags flags)
{
GstAllocator *allocator = GST_MEMORY_CAST (mem)->allocator;
GstVaAllocator *va_allocator;
GstVaDisplay *display;
g_return_val_if_fail (mem->surface != VA_INVALID_ID, NULL);
g_return_val_if_fail (GST_IS_VA_ALLOCATOR (allocator), NULL);
if (g_atomic_int_get (&mem->map_count) > 0) {
if (mem->prev_mapflags != flags || !mem->mapped_data)
return NULL;
else
goto success;
}
va_allocator = GST_VA_ALLOCATOR (allocator);
display = va_allocator->display;
if (flags & GST_MAP_WRITE) {
mem->is_dirty = TRUE;
} else { /* GST_MAP_READ only */
mem->is_dirty = FALSE;
}
if (flags & GST_MAP_VA) {
mem->mapped_data = &mem->surface;
goto success;
}
if (!_ensure_image (display, mem->surface, &va_allocator->info, &mem->image,
va_allocator->use_derived))
return NULL;
mem->is_derived = va_allocator->use_derived;
if (!mem->is_derived) {
if (!_get_image (display, mem->surface, &mem->image))
goto fail;
}
if (!_map_buffer (display, mem->image.buf, &mem->mapped_data))
goto fail;
success:
{
mem->prev_mapflags = flags;
g_atomic_int_add (&mem->map_count, 1);
return mem->mapped_data;
}
fail:
{
_destroy_image (display, mem->image.image_id);
_clean_mem (mem);
return NULL;
}
}
static gpointer
_va_map (GstVaMemory * mem, gsize maxsize, GstMapFlags flags)
{
gpointer data;
g_mutex_lock (&mem->lock);
data = _va_map_unlocked (mem, flags);
g_mutex_unlock (&mem->lock);
return data;
}
static gboolean
_va_unmap_unlocked (GstVaMemory * mem)
{
GstAllocator *allocator = GST_MEMORY_CAST (mem)->allocator;
GstVaDisplay *display;
gboolean ret = TRUE;
if (!g_atomic_int_dec_and_test (&mem->map_count))
return TRUE;
if (mem->prev_mapflags & GST_MAP_VA)
goto bail;
display = GST_VA_ALLOCATOR (allocator)->display;
if (mem->image.image_id != VA_INVALID_ID) {
if (mem->is_dirty && !mem->is_derived) {
ret = _put_image (display, mem->surface, &mem->image);
mem->is_dirty = FALSE;
}
/* XXX(victor): if is derived and is dirty, create another surface
* an replace it in mem */
}
ret &= _unmap_buffer (display, mem->image.buf);
ret &= _destroy_image (display, mem->image.image_id);
bail:
_clean_mem (mem);
return ret;
}
static gboolean
_va_unmap (GstVaMemory * mem)
{
gboolean ret;
g_mutex_lock (&mem->lock);
ret = _va_unmap_unlocked (mem);
g_mutex_unlock (&mem->lock);
return ret;
}
static GstMemory *
_va_share (GstMemory * mem, gssize offset, gssize size)
{
GstVaMemory *vamem = (GstVaMemory *) mem;
GstVaMemory *sub;
GstMemory *parent;
GST_DEBUG ("%p: share %" G_GSSIZE_FORMAT ", %" G_GSIZE_FORMAT, mem, offset,
size);
/* find real parent */
if ((parent = vamem->mem.parent) == NULL)
parent = (GstMemory *) vamem;
if (size == -1)
size = mem->maxsize - offset;
sub = g_slice_new (GstVaMemory);
/* the shared memory is alwyas readonly */
gst_memory_init (GST_MEMORY_CAST (sub), GST_MINI_OBJECT_FLAGS (parent) |
GST_MINI_OBJECT_FLAG_LOCK_READONLY, vamem->mem.allocator, parent,
vamem->mem.maxsize, vamem->mem.align, vamem->mem.offset + offset, size);
sub->surface = vamem->surface;
sub->surface_format = vamem->surface_format;
_clean_mem (sub);
g_atomic_int_set (&sub->map_count, 0);
g_mutex_init (&sub->lock);
return GST_MEMORY_CAST (sub);
}
static void
gst_va_allocator_init (GstVaAllocator * self)
{
GstAllocator *allocator = GST_ALLOCATOR (self);
allocator->mem_type = GST_ALLOCATOR_VASURFACE;
allocator->mem_map = (GstMemoryMapFunction) _va_map;
allocator->mem_unmap = (GstMemoryUnmapFunction) _va_unmap;
allocator->mem_share = _va_share;
self->use_derived = TRUE;
gst_va_memory_pool_init (&self->pool);
GST_OBJECT_FLAG_SET (self, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC);
}
static gboolean
gst_va_memory_release (GstMiniObject * mini_object)
{
GstMemory *mem = GST_MEMORY_CAST (mini_object);
GstVaAllocator *self = GST_VA_ALLOCATOR (mem->allocator);
GST_LOG ("releasing %p", mem);
gst_va_memory_pool_push (&self->pool, mem);
/* Keep last in case we are holding on the last allocator ref */
gst_object_unref (mem->allocator);
/* don't call mini_object's free */
return FALSE;
}
GstMemory *
gst_va_allocator_alloc (GstAllocator * allocator)
{
GstVaAllocator *self;
GstVaMemory *mem;
VASurfaceID surface;
g_return_val_if_fail (GST_IS_VA_ALLOCATOR (allocator), NULL);
self = GST_VA_ALLOCATOR (allocator);
g_return_val_if_fail (self->rt_format != 0, NULL);
if (!_create_surfaces (self->display, self->rt_format, self->fourcc,
GST_VIDEO_INFO_WIDTH (&self->info),
GST_VIDEO_INFO_HEIGHT (&self->info), self->usage_hint, NULL,
&surface, 1))
return NULL;
mem = g_slice_new (GstVaMemory);
mem->surface = surface;
mem->surface_format = self->surface_format;
_reset_mem (mem, allocator, GST_VIDEO_INFO_SIZE (&self->info));
GST_MINI_OBJECT (mem)->dispose = gst_va_memory_release;
gst_va_memory_pool_surface_inc (&self->pool);
GST_LOG_OBJECT (self, "Created surface %#x [%dx%d]", mem->surface,
GST_VIDEO_INFO_WIDTH (&self->info), GST_VIDEO_INFO_HEIGHT (&self->info));
return GST_MEMORY_CAST (mem);
}
GstAllocator *
gst_va_allocator_new (GstVaDisplay * display, GArray * surface_formats)
{
GstVaAllocator *self;
g_return_val_if_fail (GST_IS_VA_DISPLAY (display), NULL);
self = g_object_new (GST_TYPE_VA_ALLOCATOR, NULL);
self->display = gst_object_ref (display);
self->surface_formats = surface_formats;
gst_object_ref_sink (self);
return GST_ALLOCATOR (self);
}
static VASurfaceID
gst_va_allocator_prepare_buffer_unlocked (GstVaAllocator * self,
GstBuffer * buffer)
{
GstMemory *mem;
VASurfaceID surface;
mem = gst_va_memory_pool_pop (&self->pool);
if (!mem)
return VA_INVALID_ID;
gst_object_ref (mem->allocator);
surface = gst_va_memory_get_surface (mem);
gst_buffer_append_memory (buffer, mem);
return surface;
}
gboolean
gst_va_allocator_prepare_buffer (GstAllocator * allocator, GstBuffer * buffer)
{
GstVaAllocator *self = GST_VA_ALLOCATOR (allocator);
VASurfaceID surface;
GST_VA_MEMORY_POOL_LOCK (&self->pool);
surface = gst_va_allocator_prepare_buffer_unlocked (self, buffer);
GST_VA_MEMORY_POOL_UNLOCK (&self->pool);
if (surface != VA_INVALID_ID) {
GST_TRACE_OBJECT (self, "Prepared surface %#x in buffer %p", surface,
buffer);
}
return (surface != VA_INVALID_ID);
}
gboolean
gst_va_allocator_wait_for_memory (GstAllocator * allocator, GstBuffer * buffer)
{
GstVaAllocator *self = GST_VA_ALLOCATOR (allocator);
VASurfaceID surface;
GST_VA_MEMORY_POOL_LOCK (&self->pool);
if (!gst_va_memory_pool_wait_unlocked (&self->pool)) {
GST_VA_MEMORY_POOL_LOCK (&self->pool);
return FALSE;
}
surface = gst_va_allocator_prepare_buffer_unlocked (self, buffer);
GST_VA_MEMORY_POOL_LOCK (&self->pool);
if (surface != VA_INVALID_ID) {
GST_TRACE_OBJECT (self, "Prepared surface %#x in buffer %p", surface,
buffer);
}
return (surface != VA_INVALID_ID);
}
void
gst_va_allocator_flush (GstAllocator * allocator)
{
GstVaAllocator *self = GST_VA_ALLOCATOR (allocator);
gst_va_memory_pool_flush (&self->pool, self->display);
}
static gboolean
gst_va_allocator_try (GstAllocator * allocator)
{
GstVaAllocator *self = GST_VA_ALLOCATOR (allocator);
self->fourcc = 0;
self->rt_format = 0;
self->use_derived = FALSE;
self->img_format = GST_VIDEO_INFO_FORMAT (&self->info);
self->surface_format =
gst_va_video_surface_format_from_image_format (self->img_format,
self->surface_formats);
if (self->surface_format == GST_VIDEO_FORMAT_UNKNOWN) {
/* try a surface without fourcc but rt_format only */
self->fourcc = 0;
self->rt_format = gst_va_chroma_from_video_format (self->img_format);
} else {
self->fourcc = gst_va_fourcc_from_video_format (self->surface_format);
self->rt_format = gst_va_chroma_from_video_format (self->surface_format);
}
if (self->rt_format == 0) {
GST_ERROR_OBJECT (allocator, "Unsupported image format: %s",
gst_video_format_to_string (self->img_format));
return FALSE;
}
if (!_update_image_info (self)) {
GST_ERROR_OBJECT (allocator, "Failed to update allocator info");
return FALSE;
}
GST_INFO_OBJECT (self,
"va allocator info, surface format: %s, image format: %s, "
"use derived: %s, rt format: 0x%x, fourcc: %" GST_FOURCC_FORMAT,
(self->surface_format == GST_VIDEO_FORMAT_UNKNOWN) ? "unknown"
: gst_video_format_to_string (self->surface_format),
gst_video_format_to_string (self->img_format),
self->use_derived ? "true" : "false", self->rt_format,
GST_FOURCC_ARGS (self->fourcc));
return TRUE;
}
gboolean
gst_va_allocator_set_format (GstAllocator * allocator, GstVideoInfo * info,
guint usage_hint)
{
GstVaAllocator *self;
gboolean ret;
g_return_val_if_fail (GST_IS_VA_ALLOCATOR (allocator), FALSE);
g_return_val_if_fail (info, FALSE);
self = GST_VA_ALLOCATOR (allocator);
if (gst_va_memory_pool_surface_count (&self->pool) != 0) {
if (GST_VIDEO_INFO_FORMAT (info) == GST_VIDEO_INFO_FORMAT (&self->info)
&& GST_VIDEO_INFO_WIDTH (info) == GST_VIDEO_INFO_WIDTH (&self->info)
&& GST_VIDEO_INFO_HEIGHT (info) == GST_VIDEO_INFO_HEIGHT (&self->info)
&& usage_hint == self->usage_hint) {
*info = self->info; /* update callee info (offset & stride) */
return TRUE;
}
return FALSE;
}
self->usage_hint = usage_hint;
self->info = *info;
ret = gst_va_allocator_try (allocator);
if (ret)
*info = self->info;
return ret;
}
gboolean
gst_va_allocator_get_format (GstAllocator * allocator, GstVideoInfo * info,
guint * usage_hint)
{
GstVaAllocator *self = GST_VA_ALLOCATOR (allocator);
if (GST_VIDEO_INFO_FORMAT (&self->info) == GST_VIDEO_FORMAT_UNKNOWN)
return FALSE;
if (info)
*info = self->info;
if (usage_hint)
*usage_hint = self->usage_hint;
return TRUE;
}
/*============ Utilities =====================================================*/
VASurfaceID
gst_va_memory_get_surface (GstMemory * mem)
{
VASurfaceID surface = VA_INVALID_ID;
if (!mem->allocator)
return VA_INVALID_ID;
if (GST_IS_DMABUF_ALLOCATOR (mem->allocator)) {
GstVaBufferSurface *buf;
buf = gst_mini_object_get_qdata (GST_MINI_OBJECT (mem),
gst_va_buffer_surface_quark ());
if (buf)
surface = buf->surface;
} else if (GST_IS_VA_ALLOCATOR (mem->allocator)) {
GstVaMemory *va_mem = (GstVaMemory *) mem;
surface = va_mem->surface;
}
return surface;
}
VASurfaceID
gst_va_buffer_get_surface (GstBuffer * buffer)
{
GstMemory *mem;
mem = gst_buffer_peek_memory (buffer, 0);
if (!mem)
return VA_INVALID_ID;
return gst_va_memory_get_surface (mem);
}