mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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264 lines
8.1 KiB
C
264 lines
8.1 KiB
C
/* GStreamer Intel MSDK plugin
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* Copyright (c) 2018, Intel Corporation
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* Copyright (c) 2018, Igalia S.L.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGDECE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _WIN32
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#include <unistd.h>
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#endif
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#include <stdlib.h>
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#include "gstmsdksystemmemory.h"
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#ifdef _WIN32
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#define posix_memalign(d, a, s) ((*((void**)d) = _aligned_malloc(s, a)) ? 0 : -1)
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#endif
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#ifndef _WIN32
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#define _aligned_free free
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#endif
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static gboolean
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ensure_data (GstMsdkSystemMemory * mem)
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{
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gsize size;
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void *data;
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GstVideoInfo *info;
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GstAllocator *allocator;
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GstMsdkSystemAllocator *msdk_allocator;
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allocator = GST_MEMORY_CAST (mem)->allocator;
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msdk_allocator = GST_MSDK_SYSTEM_ALLOCATOR_CAST (allocator);
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info = &msdk_allocator->image_info;
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size = GST_VIDEO_INFO_SIZE (info);
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if (mem->cache)
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return TRUE;
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if (posix_memalign (&data, 32, size) != 0) {
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GST_ERROR ("Memory allocation failed");
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return FALSE;
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}
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mem->cache = data;
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mem->cached_data[0] = mem->cache;
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mem->cached_data[1] = mem->cache + GST_VIDEO_INFO_PLANE_OFFSET (info, 1);
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mem->cached_data[2] = mem->cache + GST_VIDEO_INFO_PLANE_OFFSET (info, 2);
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mem->destination_pitches[0] = GST_VIDEO_INFO_PLANE_STRIDE (info, 0);
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mem->destination_pitches[1] = GST_VIDEO_INFO_PLANE_STRIDE (info, 1);
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mem->destination_pitches[2] = GST_VIDEO_INFO_PLANE_STRIDE (info, 2);
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switch (GST_VIDEO_INFO_FORMAT (info)) {
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case GST_VIDEO_FORMAT_NV12:
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case GST_VIDEO_FORMAT_P010_10LE:
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mem->surface->Data.Y = mem->cached_data[0];
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mem->surface->Data.UV = mem->cached_data[1];
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mem->surface->Data.Pitch = mem->destination_pitches[0];
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break;
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case GST_VIDEO_FORMAT_YV12:
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mem->surface->Data.Y = mem->cached_data[0];
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mem->surface->Data.U = mem->cached_data[2];
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mem->surface->Data.V = mem->cached_data[1];
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mem->surface->Data.Pitch = mem->destination_pitches[0];
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break;
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case GST_VIDEO_FORMAT_I420:
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mem->surface->Data.Y = mem->cached_data[0];
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mem->surface->Data.U = mem->cached_data[1];
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mem->surface->Data.V = mem->cached_data[2];
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mem->surface->Data.Pitch = mem->destination_pitches[0];
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break;
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case GST_VIDEO_FORMAT_YUY2:
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mem->surface->Data.Y = mem->cached_data[0];
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mem->surface->Data.U = mem->surface->Data.Y + 1;
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mem->surface->Data.V = mem->surface->Data.Y + 3;
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mem->surface->Data.Pitch = mem->destination_pitches[0];
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break;
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case GST_VIDEO_FORMAT_UYVY:
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mem->surface->Data.Y = mem->cached_data[0];
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mem->surface->Data.U = mem->surface->Data.Y;
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mem->surface->Data.V = mem->surface->Data.U + 2;
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mem->surface->Data.Pitch = mem->destination_pitches[0];
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break;
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case GST_VIDEO_FORMAT_BGRA:
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mem->surface->Data.R = mem->cached_data[0];
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mem->surface->Data.G = mem->surface->Data.R + 1;
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mem->surface->Data.B = mem->surface->Data.R + 2;
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mem->surface->Data.Pitch = mem->destination_pitches[0];
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break;
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case GST_VIDEO_FORMAT_RGB16:
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mem->surface->Data.R = mem->cached_data[0];
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mem->surface->Data.G = mem->surface->Data.R;
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mem->surface->Data.B = mem->surface->Data.R;
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mem->surface->Data.Pitch = mem->destination_pitches[0];
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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return TRUE;
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}
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static mfxFrameSurface1 *
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gst_msdk_system_allocator_create_surface (GstAllocator * allocator)
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{
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mfxFrameInfo frame_info = { {0,}, 0, };
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mfxFrameSurface1 *surface;
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GstMsdkSystemAllocator *msdk_system_allocator =
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GST_MSDK_SYSTEM_ALLOCATOR_CAST (allocator);
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surface = (mfxFrameSurface1 *) g_slice_new0 (mfxFrameSurface1);
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if (!surface) {
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GST_ERROR ("failed to allocate surface");
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return NULL;
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}
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gst_msdk_set_mfx_frame_info_from_video_info (&frame_info,
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&msdk_system_allocator->image_info);
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surface->Info = frame_info;
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return surface;
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}
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GstMemory *
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gst_msdk_system_memory_new (GstAllocator * base_allocator)
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{
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GstMsdkSystemAllocator *allocator;
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GstVideoInfo *vip;
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GstMsdkSystemMemory *mem;
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g_return_val_if_fail (base_allocator, NULL);
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g_return_val_if_fail (GST_IS_MSDK_SYSTEM_ALLOCATOR (base_allocator), NULL);
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allocator = GST_MSDK_SYSTEM_ALLOCATOR_CAST (base_allocator);
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mem = g_slice_new0 (GstMsdkSystemMemory);
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if (!mem)
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return NULL;
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mem->surface = gst_msdk_system_allocator_create_surface (base_allocator);
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vip = &allocator->image_info;
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gst_memory_init (&mem->parent_instance, GST_MEMORY_FLAG_NO_SHARE,
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base_allocator, NULL, GST_VIDEO_INFO_SIZE (vip), 0, 0,
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GST_VIDEO_INFO_SIZE (vip));
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if (!ensure_data (mem))
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return NULL;
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return GST_MEMORY_CAST (mem);
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}
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static gpointer
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gst_msdk_system_memory_map_full (GstMemory * base_mem, GstMapInfo * info,
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gsize maxsize)
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{
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GstMsdkSystemMemory *const mem = GST_MSDK_SYSTEM_MEMORY_CAST (base_mem);
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g_return_val_if_fail (mem, NULL);
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if (!mem->surface) {
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GST_WARNING ("The surface is not allocated");
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return NULL;
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}
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if ((info->flags & GST_MAP_WRITE) && mem->surface
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&& mem->surface->Data.Locked) {
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GST_WARNING ("The surface in memory %p is not still avaliable", mem);
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return NULL;
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}
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return mem->surface->Data.Y;
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}
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static void
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gst_msdk_system_memory_unmap (GstMemory * base_mem)
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{
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}
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/* GstMsdkSystemAllocator */
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G_DEFINE_TYPE (GstMsdkSystemAllocator, gst_msdk_system_allocator,
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GST_TYPE_ALLOCATOR);
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static void
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gst_msdk_system_allocator_free (GstAllocator * allocator, GstMemory * base_mem)
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{
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GstMsdkSystemMemory *const mem = GST_MSDK_SYSTEM_MEMORY_CAST (base_mem);
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_aligned_free (mem->cache);
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g_slice_free (mfxFrameSurface1, mem->surface);
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}
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static GstMemory *
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gst_msdk_system_allocator_alloc (GstAllocator * allocator, gsize size,
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GstAllocationParams * params)
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{
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return gst_msdk_system_memory_new (allocator);
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}
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static void
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gst_msdk_system_allocator_class_init (GstMsdkSystemAllocatorClass * klass)
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{
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GstAllocatorClass *const allocator_class = GST_ALLOCATOR_CLASS (klass);
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allocator_class->alloc = gst_msdk_system_allocator_alloc;
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allocator_class->free = gst_msdk_system_allocator_free;
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}
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static void
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gst_msdk_system_allocator_init (GstMsdkSystemAllocator * allocator)
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{
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GstAllocator *const base_allocator = GST_ALLOCATOR_CAST (allocator);
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base_allocator->mem_type = GST_MSDK_SYSTEM_MEMORY_NAME;
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base_allocator->mem_map_full = gst_msdk_system_memory_map_full;
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base_allocator->mem_unmap = gst_msdk_system_memory_unmap;
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GST_OBJECT_FLAG_SET (allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC);
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}
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GstAllocator *
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gst_msdk_system_allocator_new (GstVideoInfo * image_info)
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{
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GstMsdkSystemAllocator *allocator;
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g_return_val_if_fail (image_info != NULL, NULL);
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allocator = g_object_new (GST_TYPE_MSDK_SYSTEM_ALLOCATOR, NULL);
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if (!allocator)
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return NULL;
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allocator->image_info = *image_info;
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return GST_ALLOCATOR_CAST (allocator);
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}
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