gstreamer/sys/msdk/gstmsdkvideomemory.c

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/* GStreamer Intel MSDK plugin
* Copyright (c) 2018, Intel Corporation
* Copyright (c) 2018, Igalia S.L.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGDECE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <unistd.h>
#include <stdlib.h>
#include <va/va.h>
#include "gstmsdkvideomemory.h"
#include "gstmsdkallocator.h"
static gboolean
ensure_data (GstMsdkVideoMemory * mem, GstMsdkVideoAllocator * allocator)
{
GstMsdkMemoryID *mem_id;
GstMsdkAllocResponse *resp =
gst_msdk_context_get_cached_alloc_responses (allocator->context,
allocator->alloc_response);
if (!resp) {
GST_WARNING ("failed to get allocation response");
return FALSE;
}
mem_id = (GstMsdkMemoryID *) resp->mem_ids[resp->num_used_memory++];
mem->surface->Data.MemId = mem_id;
return TRUE;
}
static mfxFrameSurface1 *
gst_msdk_video_allocator_create_surface (GstAllocator * allocator)
{
mfxFrameInfo frame_info = { {0,}, 0, };
mfxFrameSurface1 *surface;
GstMsdkVideoAllocator *msdk_video_allocator =
GST_MSDK_VIDEO_ALLOCATOR_CAST (allocator);
surface = (mfxFrameSurface1 *) g_slice_new0 (mfxFrameSurface1);
if (!surface) {
GST_ERROR ("failed to allocate surface");
return NULL;
}
gst_msdk_set_mfx_frame_info_from_video_info (&frame_info,
&msdk_video_allocator->image_info);
surface->Info = frame_info;
return surface;
}
GstMemory *
gst_msdk_video_memory_new (GstAllocator * base_allocator)
{
GstMsdkVideoAllocator *allocator;
GstVideoInfo *vip;
GstMsdkVideoMemory *mem;
g_return_val_if_fail (base_allocator, NULL);
g_return_val_if_fail (GST_IS_MSDK_VIDEO_ALLOCATOR (base_allocator), NULL);
allocator = GST_MSDK_VIDEO_ALLOCATOR_CAST (base_allocator);
mem = g_slice_new0 (GstMsdkVideoMemory);
if (!mem)
return NULL;
mem->surface = gst_msdk_video_allocator_create_surface (base_allocator);
vip = &allocator->image_info;
gst_memory_init (&mem->parent_instance, GST_MEMORY_FLAG_NO_SHARE,
base_allocator, NULL, GST_VIDEO_INFO_SIZE (vip), 0, 0,
GST_VIDEO_INFO_SIZE (vip));
if (!ensure_data (mem, allocator))
return FALSE;
return GST_MEMORY_CAST (mem);
}
gboolean
gst_video_meta_map_msdk_memory (GstVideoMeta * meta, guint plane,
GstMapInfo * info, gpointer * data, gint * stride, GstMapFlags flags)
{
gboolean ret = FALSE;
GstAllocator *allocator;
GstMsdkVideoAllocator *msdk_video_allocator;
GstMsdkVideoMemory *mem =
GST_MSDK_VIDEO_MEMORY_CAST (gst_buffer_peek_memory (meta->buffer, 0));
GstMsdkMemoryID *mem_id;
guint offset = 0;
gint pitch = 0;
g_return_val_if_fail (mem, FALSE);
allocator = GST_MEMORY_CAST (mem)->allocator;
msdk_video_allocator = GST_MSDK_VIDEO_ALLOCATOR_CAST (allocator);
if (!GST_IS_MSDK_VIDEO_ALLOCATOR (allocator)) {
GST_WARNING ("The allocator is not MSDK video allocator");
return FALSE;
}
if (!mem->surface) {
GST_WARNING ("The surface is not allocated");
return FALSE;
}
if ((flags & GST_MAP_WRITE) && mem->surface && mem->surface->Data.Locked) {
GST_WARNING ("The surface in memory %p is not still avaliable", mem);
return FALSE;
}
if (!mem->mapped) {
gst_msdk_frame_lock (msdk_video_allocator->context,
mem->surface->Data.MemId, &mem->surface->Data);
}
mem->mapped++;
mem_id = mem->surface->Data.MemId;
#ifndef _WIN32
offset = mem_id->image.offsets[plane];
pitch = mem_id->image.pitches[plane];
#else
/* TODO: This is just to avoid compile errors on Windows.
* Implement handling Windows-specific video-memory.
*/
offset = mem_id->offset;
pitch = mem_id->pitch;
#endif
*data = mem->surface->Data.Y + offset;
*stride = pitch;
info->flags = flags;
ret = (*data != NULL);
return ret;
}
gboolean
gst_video_meta_unmap_msdk_memory (GstVideoMeta * meta, guint plane,
GstMapInfo * info)
{
GstAllocator *allocator;
GstMsdkVideoAllocator *msdk_video_allocator;
GstMsdkVideoMemory *mem =
GST_MSDK_VIDEO_MEMORY_CAST (gst_buffer_peek_memory (meta->buffer, 0));
g_return_val_if_fail (mem, FALSE);
allocator = GST_MEMORY_CAST (mem)->allocator;
msdk_video_allocator = GST_MSDK_VIDEO_ALLOCATOR_CAST (allocator);
if (mem->mapped == 1)
gst_msdk_frame_unlock (msdk_video_allocator->context,
mem->surface->Data.MemId, &mem->surface->Data);
mem->mapped--;
return TRUE;
}
static gpointer
gst_msdk_video_memory_map_full (GstMemory * base_mem, GstMapInfo * info,
gsize maxsize)
{
GstMsdkVideoMemory *const mem = GST_MSDK_VIDEO_MEMORY_CAST (base_mem);
GstAllocator *allocator = base_mem->allocator;
GstMsdkVideoAllocator *msdk_video_allocator =
GST_MSDK_VIDEO_ALLOCATOR_CAST (allocator);
g_return_val_if_fail (mem, NULL);
if (!mem->surface) {
GST_WARNING ("The surface is not allocated");
return FALSE;
}
if ((info->flags & GST_MAP_WRITE) && mem->surface
&& mem->surface->Data.Locked) {
GST_WARNING ("The surface in memory %p is not still avaliable", mem);
return FALSE;
}
gst_msdk_frame_lock (msdk_video_allocator->context, mem->surface->Data.MemId,
&mem->surface->Data);
return mem->surface->Data.Y;
}
static void
gst_msdk_video_memory_unmap (GstMemory * base_mem)
{
GstMsdkVideoMemory *const mem = GST_MSDK_VIDEO_MEMORY_CAST (base_mem);
GstAllocator *allocator = base_mem->allocator;
GstMsdkVideoAllocator *msdk_video_allocator =
GST_MSDK_VIDEO_ALLOCATOR_CAST (allocator);
gst_msdk_frame_unlock (msdk_video_allocator->context,
mem->surface->Data.MemId, &mem->surface->Data);
}
/* GstMsdkVideoAllocator */
G_DEFINE_TYPE (GstMsdkVideoAllocator, gst_msdk_video_allocator,
GST_TYPE_ALLOCATOR);
static GstMemory *
gst_msdk_video_allocator_alloc (GstAllocator * allocator, gsize size,
GstAllocationParams * params)
{
return gst_msdk_video_memory_new (allocator);
}
static void
gst_msdk_video_allocator_free (GstAllocator * allocator, GstMemory * memory)
{
GstMsdkVideoAllocator *msdk_video_allocator =
GST_MSDK_VIDEO_ALLOCATOR_CAST (allocator);
GstMsdkAllocResponse *resp =
gst_msdk_context_get_cached_alloc_responses
(msdk_video_allocator->context, msdk_video_allocator->alloc_response);
if (resp)
resp->num_used_memory--;
}
static void
gst_msdk_video_allocator_finalize (GObject * object)
{
GstMsdkVideoAllocator *allocator = GST_MSDK_VIDEO_ALLOCATOR_CAST (object);
gst_object_unref (allocator->context);
G_OBJECT_CLASS (gst_msdk_video_allocator_parent_class)->finalize (object);
}
static void
gst_msdk_video_allocator_class_init (GstMsdkVideoAllocatorClass * klass)
{
GObjectClass *const object_class = G_OBJECT_CLASS (klass);
GstAllocatorClass *const allocator_class = GST_ALLOCATOR_CLASS (klass);
object_class->finalize = gst_msdk_video_allocator_finalize;
allocator_class->alloc = gst_msdk_video_allocator_alloc;
allocator_class->free = gst_msdk_video_allocator_free;
}
static void
gst_msdk_video_allocator_init (GstMsdkVideoAllocator * allocator)
{
GstAllocator *const base_allocator = GST_ALLOCATOR_CAST (allocator);
base_allocator->mem_type = GST_MSDK_VIDEO_MEMORY_NAME;
base_allocator->mem_map_full = gst_msdk_video_memory_map_full;
base_allocator->mem_unmap = gst_msdk_video_memory_unmap;
GST_OBJECT_FLAG_SET (allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC);
}
GstAllocator *
gst_msdk_video_allocator_new (GstMsdkContext * context,
GstVideoInfo * image_info, mfxFrameAllocResponse * alloc_resp)
{
GstMsdkVideoAllocator *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_VIDEO_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);
}