mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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c9aaf39279
Do not chain up to parent's GstBufferPool::start() which will do preallocation. We don't want it to be preallocated since there are various cases where negotiated downstream buffer pool is not used at all (e.g., zero-copy decoding, IPC elements). Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6326>
377 lines
10 KiB
C++
377 lines
10 KiB
C++
/* GStreamer
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* Copyright (C) <2018-2019> Seungha Yang <seungha.yang@navercorp.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstcudabufferpool.h"
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#include "gstcudacontext.h"
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#include "gstcudamemory.h"
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#include "gstcuda-private.h"
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GST_DEBUG_CATEGORY_STATIC (gst_cuda_buffer_pool_debug);
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#define GST_CAT_DEFAULT gst_cuda_buffer_pool_debug
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struct _GstCudaBufferPoolPrivate
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{
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GstVideoInfo info;
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GstCudaStream *stream;
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GstCudaPoolAllocator *alloc;
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GstCudaMemoryAllocMethod alloc_method;
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CUmemAllocationProp prop;
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};
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#define gst_cuda_buffer_pool_parent_class parent_class
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G_DEFINE_TYPE_WITH_PRIVATE (GstCudaBufferPool, gst_cuda_buffer_pool,
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GST_TYPE_BUFFER_POOL);
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static const gchar **
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gst_cuda_buffer_pool_get_options (GstBufferPool * pool)
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{
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static const gchar *options[] = { GST_BUFFER_POOL_OPTION_VIDEO_META, nullptr
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};
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return options;
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}
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static gboolean
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gst_cuda_buffer_pool_update_alloc_prop (GstCudaBufferPool * self)
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{
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GstCudaBufferPoolPrivate *priv = self->priv;
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gboolean virtual_mem_supported;
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gboolean os_handle_supported;
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guint device;
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g_object_get (self->context, "cuda-device-id", &device,
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"virtual-memory", &virtual_mem_supported,
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"os-handle", &os_handle_supported, nullptr);
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if (!virtual_mem_supported) {
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GST_DEBUG_OBJECT (self, "Virtual memory management is not supported");
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return FALSE;
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}
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if (!os_handle_supported) {
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GST_DEBUG_OBJECT (self, "OS handle is not supported");;
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return FALSE;
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}
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priv->prop.type = CU_MEM_ALLOCATION_TYPE_PINNED;
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priv->prop.location.type = CU_MEM_LOCATION_TYPE_DEVICE;
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priv->prop.location.id = (int) device;
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#ifdef G_OS_WIN32
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priv->prop.requestedHandleTypes = CU_MEM_HANDLE_TYPE_WIN32;
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priv->prop.win32HandleMetaData = gst_cuda_get_win32_handle_metadata ();
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#else
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priv->prop.requestedHandleTypes = CU_MEM_HANDLE_TYPE_POSIX_FILE_DESCRIPTOR;
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#endif
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return TRUE;
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}
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static gboolean
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gst_cuda_buffer_pool_set_config (GstBufferPool * pool, GstStructure * config)
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{
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GstCudaBufferPool *self = GST_CUDA_BUFFER_POOL (pool);
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GstCudaBufferPoolPrivate *priv = self->priv;
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GstCaps *caps = nullptr;
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guint size, min_buffers, max_buffers;
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GstVideoInfo info;
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GstMemory *mem = nullptr;
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GstCudaMemory *cmem;
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if (!gst_buffer_pool_config_get_params (config, &caps, &size, &min_buffers,
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&max_buffers)) {
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GST_WARNING_OBJECT (self, "invalid config");
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return FALSE;
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}
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if (!caps) {
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GST_WARNING_OBJECT (pool, "no caps in config");
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return FALSE;
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}
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if (!gst_video_info_from_caps (&info, caps)) {
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GST_WARNING_OBJECT (self, "Failed to convert caps to video-info");
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return FALSE;
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}
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if (priv->alloc) {
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gst_cuda_allocator_set_active (GST_CUDA_ALLOCATOR (priv->alloc), FALSE);
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gst_clear_object (&priv->alloc);
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}
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gst_clear_cuda_stream (&priv->stream);
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priv->stream = gst_buffer_pool_config_get_cuda_stream (config);
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priv->alloc_method = gst_buffer_pool_config_get_cuda_alloc_method (config);
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if (priv->alloc_method == GST_CUDA_MEMORY_ALLOC_UNKNOWN)
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priv->alloc_method = GST_CUDA_MEMORY_ALLOC_MALLOC;
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if (priv->alloc_method == GST_CUDA_MEMORY_ALLOC_MMAP) {
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if (!gst_cuda_buffer_pool_update_alloc_prop (self)) {
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GST_ERROR_OBJECT (self, "Virtual memory management is not supported");
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return FALSE;
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}
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priv->alloc = gst_cuda_pool_allocator_new_for_virtual_memory (self->context,
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priv->stream, &info, &priv->prop, CU_MEM_ALLOC_GRANULARITY_MINIMUM);
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} else {
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priv->alloc = gst_cuda_pool_allocator_new (self->context, priv->stream,
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&info);
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}
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if (!priv->alloc) {
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GST_ERROR_OBJECT (self, "Couldn't create allocator");
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return FALSE;
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}
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if (!gst_cuda_allocator_set_active (GST_CUDA_ALLOCATOR (priv->alloc), TRUE)) {
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GST_ERROR_OBJECT (self, "Couldn't set active");
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return FALSE;
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}
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gst_cuda_pool_allocator_acquire_memory (priv->alloc, &mem);
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gst_cuda_allocator_set_active (GST_CUDA_ALLOCATOR (priv->alloc), FALSE);
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if (!mem) {
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GST_WARNING_OBJECT (self, "Failed to allocate memory");
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return FALSE;
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}
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cmem = GST_CUDA_MEMORY_CAST (mem);
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gst_buffer_pool_config_set_params (config, caps,
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GST_VIDEO_INFO_SIZE (&cmem->info), min_buffers, max_buffers);
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priv->info = info;
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gst_memory_unref (mem);
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return GST_BUFFER_POOL_CLASS (parent_class)->set_config (pool, config);
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}
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static GstFlowReturn
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gst_cuda_buffer_pool_alloc (GstBufferPool * pool, GstBuffer ** buffer,
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GstBufferPoolAcquireParams * params)
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{
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GstCudaBufferPool *self = GST_CUDA_BUFFER_POOL_CAST (pool);
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GstCudaBufferPoolPrivate *priv = self->priv;
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GstVideoInfo *info = &priv->info;
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GstBuffer *buf;
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GstMemory *mem;
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GstCudaMemory *cmem;
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GstFlowReturn ret;
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ret = gst_cuda_pool_allocator_acquire_memory (priv->alloc, &mem);
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if (ret != GST_FLOW_OK) {
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GST_WARNING_OBJECT (self, "Couldn't acquire memory");
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return ret;
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}
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buf = gst_buffer_new ();
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gst_buffer_append_memory (buf, mem);
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cmem = GST_CUDA_MEMORY_CAST (mem);
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GST_DEBUG_OBJECT (pool, "adding GstVideoMeta");
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gst_buffer_add_video_meta_full (buf, GST_VIDEO_FRAME_FLAG_NONE,
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GST_VIDEO_INFO_FORMAT (info), GST_VIDEO_INFO_WIDTH (info),
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GST_VIDEO_INFO_HEIGHT (info), GST_VIDEO_INFO_N_PLANES (info),
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cmem->info.offset, cmem->info.stride);
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*buffer = buf;
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return GST_FLOW_OK;
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}
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static gboolean
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gst_cuda_buffer_pool_start (GstBufferPool * pool)
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{
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GstCudaBufferPool *self = GST_CUDA_BUFFER_POOL_CAST (pool);
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GstCudaBufferPoolPrivate *priv = self->priv;
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if (!gst_cuda_allocator_set_active (GST_CUDA_ALLOCATOR (priv->alloc), TRUE)) {
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GST_ERROR_OBJECT (self, "Couldn't activate allocator");
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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gst_cuda_buffer_pool_stop (GstBufferPool * pool)
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{
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GstCudaBufferPool *self = GST_CUDA_BUFFER_POOL_CAST (pool);
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GstCudaBufferPoolPrivate *priv = self->priv;
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if (priv->alloc)
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gst_cuda_allocator_set_active (GST_CUDA_ALLOCATOR (priv->alloc), FALSE);
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return GST_BUFFER_POOL_CLASS (parent_class)->stop (pool);
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}
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/**
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* gst_cuda_buffer_pool_new:
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* @context: The #GstCudaContext to use for the new buffer pool
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*
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* Returns: A newly created #GstCudaBufferPool
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*
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* Since: 1.22
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*/
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GstBufferPool *
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gst_cuda_buffer_pool_new (GstCudaContext * context)
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{
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GstCudaBufferPool *self;
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g_return_val_if_fail (GST_IS_CUDA_CONTEXT (context), nullptr);
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self = (GstCudaBufferPool *)
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g_object_new (GST_TYPE_CUDA_BUFFER_POOL, nullptr);
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gst_object_ref_sink (self);
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self->context = (GstCudaContext *) gst_object_ref (context);
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self->priv->alloc_method = GST_CUDA_MEMORY_ALLOC_MALLOC;
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return GST_BUFFER_POOL_CAST (self);
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}
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/**
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* gst_buffer_pool_config_get_cuda_stream:
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* @config: a buffer pool config
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*
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* Returns: (transfer full) (nullable): the currently configured #GstCudaStream
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* on @config or %NULL if @config doesn't hold #GstCudaStream
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*
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* Since: 1.24
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*/
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GstCudaStream *
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gst_buffer_pool_config_get_cuda_stream (GstStructure * config)
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{
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GstCudaStream *stream = nullptr;
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g_return_val_if_fail (config, nullptr);
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gst_structure_get (config, "cuda-stream", GST_TYPE_CUDA_STREAM, &stream,
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nullptr);
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return stream;
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}
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/**
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* gst_buffer_pool_config_set_cuda_stream:
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* @config: a buffer pool config
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* @stream: a #GstCudaStream
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*
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* Sets @stream on @config
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*
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* Since: 1.24
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*/
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void
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gst_buffer_pool_config_set_cuda_stream (GstStructure * config,
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GstCudaStream * stream)
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{
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g_return_if_fail (config);
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g_return_if_fail (GST_IS_CUDA_STREAM (stream));
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gst_structure_set (config,
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"cuda-stream", GST_TYPE_CUDA_STREAM, stream, nullptr);
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}
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/**
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* gst_buffer_pool_config_get_cuda_alloc_method:
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* @config: a buffer pool config
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*
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* Gets configured allocation method
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*
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* Since: 1.24
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*/
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GstCudaMemoryAllocMethod
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gst_buffer_pool_config_get_cuda_alloc_method (GstStructure * config)
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{
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GstCudaMemoryAllocMethod type;
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g_return_val_if_fail (config, GST_CUDA_MEMORY_ALLOC_UNKNOWN);
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if (gst_structure_get_enum (config, "cuda-alloc-method",
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GST_TYPE_CUDA_MEMORY_ALLOC_METHOD, (gint *) & type)) {
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return type;
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}
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return GST_CUDA_MEMORY_ALLOC_UNKNOWN;
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}
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/**
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* gst_buffer_pool_config_set_cuda_alloc_method:
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* @config: a buffer pool config
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*
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* Sets allocation method
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*
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* Since: 1.24
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*/
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void
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gst_buffer_pool_config_set_cuda_alloc_method (GstStructure * config,
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GstCudaMemoryAllocMethod method)
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{
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g_return_if_fail (config);
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gst_structure_set (config, "cuda-alloc-method",
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GST_TYPE_CUDA_MEMORY_ALLOC_METHOD, method, nullptr);
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}
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static void
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gst_cuda_buffer_pool_dispose (GObject * object)
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{
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GstCudaBufferPool *self = GST_CUDA_BUFFER_POOL_CAST (object);
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GstCudaBufferPoolPrivate *priv = self->priv;
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if (priv->alloc) {
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gst_cuda_allocator_set_active (GST_CUDA_ALLOCATOR (priv->alloc), FALSE);
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gst_clear_object (&priv->alloc);
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}
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gst_clear_cuda_stream (&priv->stream);
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gst_clear_object (&self->context);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_cuda_buffer_pool_class_init (GstCudaBufferPoolClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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GstBufferPoolClass *bufferpool_class = (GstBufferPoolClass *) klass;
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gobject_class->dispose = gst_cuda_buffer_pool_dispose;
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bufferpool_class->get_options = gst_cuda_buffer_pool_get_options;
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bufferpool_class->set_config = gst_cuda_buffer_pool_set_config;
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bufferpool_class->start = gst_cuda_buffer_pool_start;
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bufferpool_class->stop = gst_cuda_buffer_pool_stop;
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bufferpool_class->alloc_buffer = gst_cuda_buffer_pool_alloc;
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GST_DEBUG_CATEGORY_INIT (gst_cuda_buffer_pool_debug, "cudabufferpool", 0,
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"CUDA Buffer Pool");
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}
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static void
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gst_cuda_buffer_pool_init (GstCudaBufferPool * pool)
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{
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pool->priv = (GstCudaBufferPoolPrivate *)
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gst_cuda_buffer_pool_get_instance_private (pool);
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}
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