mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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gldownload: import DMABufs from downstream pool
* if downstream provides us with a pool that can allocate DMA buffers, gldownload wraps it into a GL buffer pool that uses glEGLImageTargetTexture2DOES() to import dmabuf into textures * upstream GL elements can allocate from that pool * gldownload unwraps DMA buffers from incoming GL buffers and passes them downstream Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6792>
This commit is contained in:
parent
270e186311
commit
188b626ffc
5 changed files with 630 additions and 18 deletions
subprojects/gst-plugins-base/ext/gl
422
subprojects/gst-plugins-base/ext/gl/gstgldmabufbufferpool.c
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422
subprojects/gst-plugins-base/ext/gl/gstgldmabufbufferpool.c
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/*
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* GStreamer
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* Copyright © 2024 Advanced Micro Devices, Inc.
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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 <ext/gl/gstgldmabufbufferpool.h>
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#include <gst/allocators/gstdmabuf.h>
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#include <gst/gl/gstglcontext.h>
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#include <gst/gl/gstglfuncs.h>
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#include <gst/gl/gstglmemory.h>
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#include <gst/gl/gstglsyncmeta.h>
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#include <gst/gl/egl/gsteglimage.h>
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#define GST_GL_DMABUF_EGLIMAGE "gst.gl.dmabuf.eglimage"
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typedef struct _GstGLDMABufBufferPoolPrivate
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{
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GstBufferPool *dmabuf_pool;
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GstGLMemoryAllocator *allocator;
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GstGLVideoAllocationParams *glparams;
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gboolean add_glsyncmeta;
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} GstGLDMABufBufferPoolPrivate;
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_GL_DMABUF_BUFFER_POOL);
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#define GST_CAT_DEFAULT GST_CAT_GL_DMABUF_BUFFER_POOL
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#define gst_gl_dmabuf_buffer_pool_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstGLDMABufBufferPool, gst_gl_dmabuf_buffer_pool,
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GST_TYPE_GL_BUFFER_POOL, G_ADD_PRIVATE (GstGLDMABufBufferPool)
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GST_DEBUG_CATEGORY_INIT (GST_CAT_GL_DMABUF_BUFFER_POOL,
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"gldmabufbufferpool", 0, "GL-DMABuf Buffer Pool"));
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static gboolean
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gst_gl_dmabuf_buffer_pool_set_config (GstBufferPool * pool,
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GstStructure * config)
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{
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GstGLDMABufBufferPool *self = GST_GL_DMABUF_BUFFER_POOL (pool);
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GstAllocator *allocator = NULL;
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GstAllocationParams alloc_params;
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GstGLAllocationParams *glparams;
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GstVideoAlignment video_align = { 0 };
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GstCaps *caps;
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guint size;
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guint min;
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guint max;
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guint i;
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if (!gst_buffer_pool_config_get_params (config, &caps, &size, &min, &max)) {
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goto wrong_config;
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}
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if (!gst_buffer_pool_config_get_allocator (config, &allocator, &alloc_params)) {
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goto wrong_config;
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}
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gst_clear_object (&self->priv->allocator);
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if (allocator) {
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if (!GST_IS_GL_MEMORY_ALLOCATOR (allocator)) {
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gst_clear_object (&allocator);
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goto wrong_allocator;
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} else {
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self->priv->allocator = gst_object_ref (allocator);
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}
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} else {
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self->priv->allocator =
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gst_gl_memory_allocator_get_default (GST_GL_BUFFER_POOL
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(pool)->context);
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}
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/*
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* This alignment is needed by nearly all AMD GPUs and should work fine on
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* Mali as well. To my knowledge there is no API to query it at runtime, so
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* it has to be hardcoded here. Users of the pool can still override the
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* values with GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT added to the config.
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*/
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for (i = 0; i != GST_VIDEO_MAX_PLANES; ++i) {
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video_align.stride_align[i] = 256 - 1;
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}
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if (!gst_buffer_pool_config_has_option (config,
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GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT)) {
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gst_buffer_pool_config_add_option (config,
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GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
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gst_buffer_pool_config_set_video_alignment (config, &video_align);
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}
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gst_buffer_pool_config_get_video_alignment (config, &video_align);
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alloc_params.align = MAX (alloc_params.align, video_align.stride_align[0]);
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gst_buffer_pool_config_set_allocator (config, allocator, &alloc_params);
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glparams = gst_buffer_pool_config_get_gl_allocation_params (config);
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if (glparams) {
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g_clear_pointer (&glparams->alloc_params, gst_allocation_params_free);
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glparams->alloc_params = gst_allocation_params_copy (&alloc_params);
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gst_buffer_pool_config_set_gl_allocation_params (config, glparams);
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g_clear_pointer (&glparams, gst_gl_allocation_params_free);
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}
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self->priv->add_glsyncmeta = gst_buffer_pool_config_has_option (config,
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GST_BUFFER_POOL_OPTION_GL_SYNC_META);
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if (!GST_BUFFER_POOL_CLASS (parent_class)->set_config (pool, config)) {
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return FALSE;
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}
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g_clear_pointer ((GstGLAllocationParams **) & self->priv->glparams,
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gst_gl_allocation_params_free);
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self->priv->glparams = (GstGLVideoAllocationParams *)
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gst_gl_buffer_pool_get_gl_allocation_params (GST_GL_BUFFER_POOL (pool));
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self->priv->glparams->parent.alloc_flags |=
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GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_WRAP_GPU_HANDLE;
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/* Now configure the dma-buf pool. */
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config = gst_buffer_pool_get_config (self->priv->dmabuf_pool);
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gst_buffer_pool_config_set_params (config, caps, size, min, max);
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gst_buffer_pool_config_add_option (config,
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GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT);
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gst_buffer_pool_config_set_video_alignment (config, &video_align);
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return gst_buffer_pool_set_config (self->priv->dmabuf_pool, config);
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wrong_config:
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{
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GST_WARNING_OBJECT (pool, "Incorrect config for this pool");
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return FALSE;
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}
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wrong_allocator:
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{
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GST_WARNING_OBJECT (pool, "Incorrect allocator type for this pool");
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return FALSE;
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}
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}
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static gboolean
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gst_gl_dmabuf_buffer_pool_start (GstBufferPool * pool)
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{
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GstGLDMABufBufferPool *self = GST_GL_DMABUF_BUFFER_POOL (pool);
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if (!gst_buffer_pool_set_active (self->priv->dmabuf_pool, TRUE)) {
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return FALSE;
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}
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return GST_BUFFER_POOL_CLASS (parent_class)->start (pool);
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}
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static gboolean
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gst_gl_dmabuf_buffer_pool_stop (GstBufferPool * pool)
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{
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GstGLDMABufBufferPool *self = GST_GL_DMABUF_BUFFER_POOL (pool);
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if (!gst_buffer_pool_set_active (self->priv->dmabuf_pool, FALSE)) {
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return FALSE;
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}
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return GST_BUFFER_POOL_CLASS (parent_class)->stop (pool);
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}
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typedef struct
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{
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GstEGLImage *eglimage[GST_VIDEO_MAX_PLANES];
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gpointer gpuhandle[GST_VIDEO_MAX_PLANES];
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guint n_planes;
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} WrapDMABufData;
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static void
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_wrap_dmabuf_eglimage (GstGLContext * context, gpointer data)
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{
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WrapDMABufData *d = data;
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const GstGLFuncs *gl = context->gl_vtable;
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GLuint tex_ids[GST_VIDEO_MAX_PLANES];
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guint i;
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gl->GenTextures (d->n_planes, tex_ids);
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for (i = 0; i < d->n_planes; ++i) {
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gl->BindTexture (GL_TEXTURE_2D, tex_ids[i]);
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gl->EGLImageTargetTexture2D (GL_TEXTURE_2D,
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gst_egl_image_get_image (d->eglimage[i]));
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d->gpuhandle[i] = GUINT_TO_POINTER (tex_ids[i]);
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}
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}
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static GstFlowReturn
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gst_gl_dmabuf_buffer_pool_alloc_buffer (GstBufferPool * pool,
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GstBuffer ** buffer, GstBufferPoolAcquireParams * params)
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{
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GstGLDMABufBufferPool *self = GST_GL_DMABUF_BUFFER_POOL (pool);
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GstGLBufferPool *glpool = GST_GL_BUFFER_POOL (pool);
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GstBuffer *buf;
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if (!(buf = gst_buffer_new ())) {
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goto no_buffer;
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}
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if (self->priv->add_glsyncmeta) {
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gst_buffer_add_gl_sync_meta (glpool->context, buf);
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}
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*buffer = buf;
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return GST_FLOW_OK;
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/* ERROR */
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no_buffer:
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{
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GST_WARNING_OBJECT (self, "Could not create DMABuf buffer");
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return GST_FLOW_ERROR;
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}
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}
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static GstFlowReturn
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gst_gl_dmabuf_buffer_pool_acquire_buffer (GstBufferPool * pool,
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GstBuffer ** buffer, GstBufferPoolAcquireParams * params)
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{
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GstGLDMABufBufferPool *self = GST_GL_DMABUF_BUFFER_POOL (pool);
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GstGLBufferPool *glpool = GST_GL_BUFFER_POOL (pool);
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GstVideoInfo *v_info = self->priv->glparams->v_info;
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GstFlowReturn ret;
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GstBuffer *dmabuf;
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GstBuffer *buf;
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WrapDMABufData data;
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guint i;
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ret = gst_buffer_pool_acquire_buffer (self->priv->dmabuf_pool, &dmabuf, NULL);
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if (ret != GST_FLOW_OK) {
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goto no_buffer;
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}
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data.n_planes = GST_VIDEO_INFO_N_PLANES (v_info);
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for (i = 0; i < data.n_planes; ++i) {
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guint mem_idx, length;
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gsize skip;
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GstMemory *dmabufmem;
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if (!gst_buffer_find_memory (dmabuf, GST_VIDEO_INFO_PLANE_OFFSET (v_info,
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i), 1, &mem_idx, &length, &skip)) {
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GST_WARNING_OBJECT (self, "Could not find memory for plane %d", i);
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return GST_FLOW_ERROR;
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}
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dmabufmem = gst_buffer_peek_memory (dmabuf, mem_idx);
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g_assert (gst_is_dmabuf_memory (dmabufmem));
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data.eglimage[i] = gst_egl_image_from_dmabuf (glpool->context,
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gst_dmabuf_memory_get_fd (dmabufmem), v_info, i, skip);
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}
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gst_gl_context_thread_add (glpool->context, _wrap_dmabuf_eglimage, &data);
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ret = GST_BUFFER_POOL_CLASS (parent_class)->acquire_buffer (pool, &buf,
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params);
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if (ret != GST_FLOW_OK) {
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return GST_FLOW_ERROR;
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}
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if (!gst_gl_memory_setup_buffer (self->priv->allocator, buf,
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self->priv->glparams, NULL, data.gpuhandle, data.n_planes)) {
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goto mem_create_failed;
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}
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for (i = 0; i < data.n_planes; ++i) {
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GstMemory *mem = gst_buffer_peek_memory (buf, i);
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/* Unset wrapped flag, we want the texture be freed with the memory. */
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GST_GL_MEMORY_CAST (mem)->texture_wrapped = FALSE;
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gst_mini_object_set_qdata (GST_MINI_OBJECT (mem),
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g_quark_from_static_string (GST_GL_DMABUF_EGLIMAGE),
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data.eglimage[i], (GDestroyNotify) gst_egl_image_unref);
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}
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gst_buffer_add_parent_buffer_meta (buf, dmabuf);
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gst_clear_buffer (&dmabuf);
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*buffer = buf;
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return GST_FLOW_OK;
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/* ERROR */
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no_buffer:
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{
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GST_WARNING_OBJECT (self, "Could not create DMABuf buffer");
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return GST_FLOW_ERROR;
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}
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mem_create_failed:
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{
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GST_WARNING_OBJECT (self, "Could not create GL Memory");
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return GST_FLOW_ERROR;
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}
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}
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static void
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gst_gl_dmabuf_buffer_pool_reset_buffer (GstBufferPool * pool,
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GstBuffer * buffer)
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{
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gst_buffer_remove_all_memory (buffer);
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GST_BUFFER_POOL_CLASS (parent_class)->reset_buffer (pool, buffer);
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}
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gboolean
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gst_is_gl_dmabuf_buffer (GstBuffer * buffer)
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{
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return GST_IS_GL_DMABUF_BUFFER_POOL (buffer->pool);
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}
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GstBuffer *
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gst_gl_dmabuf_buffer_unwrap (GstBuffer * buffer)
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{
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GstGLDMABufBufferPool *pool;
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GstParentBufferMeta *meta;
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GstBuffer *wrapped_dmabuf = NULL;
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g_return_val_if_fail (gst_is_gl_dmabuf_buffer (buffer), NULL);
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pool = GST_GL_DMABUF_BUFFER_POOL (buffer->pool);
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if (gst_buffer_peek_memory (buffer, 0)->allocator !=
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GST_ALLOCATOR (pool->priv->allocator)) {
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return NULL;
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}
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meta = gst_buffer_get_parent_buffer_meta (buffer);
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if (meta && meta->buffer) {
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wrapped_dmabuf = gst_buffer_ref (meta->buffer);
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gst_buffer_remove_meta (buffer, (GstMeta *) meta);
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gst_buffer_copy_into (wrapped_dmabuf, buffer, GST_BUFFER_COPY_FLAGS |
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GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_META, 0, -1);
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}
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return wrapped_dmabuf;
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}
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GstBufferPool *
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gst_gl_dmabuf_buffer_pool_new (GstGLContext * context,
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GstBufferPool * dmabuf_pool)
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{
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GstGLDMABufBufferPool *pool;
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pool = g_object_new (GST_TYPE_GL_DMABUF_BUFFER_POOL, NULL);
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gst_object_ref_sink (pool);
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GST_GL_BUFFER_POOL (pool)->context = gst_object_ref (context);
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pool->priv->dmabuf_pool = gst_object_ref (dmabuf_pool);
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GST_LOG_OBJECT (pool, "new GL-DMABuf buffer pool for pool %" GST_PTR_FORMAT
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" and context %" GST_PTR_FORMAT, dmabuf_pool, context);
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return GST_BUFFER_POOL_CAST (pool);
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}
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static void
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gst_gl_dmabuf_buffer_pool_init (GstGLDMABufBufferPool * pool)
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{
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pool->priv = gst_gl_dmabuf_buffer_pool_get_instance_private (pool);
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}
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static void
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gst_gl_dmabuf_buffer_pool_finalize (GObject * object)
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{
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GstGLDMABufBufferPool *self = GST_GL_DMABUF_BUFFER_POOL (object);
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GST_LOG_OBJECT (self, "finalize GL-DMABuf buffer pool");
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gst_clear_object (&self->priv->dmabuf_pool);
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g_clear_pointer ((GstGLAllocationParams **) & self->priv->glparams,
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gst_gl_allocation_params_free);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_gl_dmabuf_buffer_pool_class_init (GstGLDMABufBufferPoolClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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GstBufferPoolClass *gstbufferpool_class = (GstBufferPoolClass *) klass;
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gobject_class->finalize = gst_gl_dmabuf_buffer_pool_finalize;
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gstbufferpool_class->set_config = gst_gl_dmabuf_buffer_pool_set_config;
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gstbufferpool_class->alloc_buffer = gst_gl_dmabuf_buffer_pool_alloc_buffer;
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gstbufferpool_class->acquire_buffer =
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gst_gl_dmabuf_buffer_pool_acquire_buffer;
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gstbufferpool_class->reset_buffer = gst_gl_dmabuf_buffer_pool_reset_buffer;
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gstbufferpool_class->start = gst_gl_dmabuf_buffer_pool_start;
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gstbufferpool_class->stop = gst_gl_dmabuf_buffer_pool_stop;
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}
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61
subprojects/gst-plugins-base/ext/gl/gstgldmabufbufferpool.h
Normal file
61
subprojects/gst-plugins-base/ext/gl/gstgldmabufbufferpool.h
Normal file
|
@ -0,0 +1,61 @@
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/*
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* GStreamer
|
||||
* Copyright © 2024 Advanced Micro Devices, Inc.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#ifndef _GST_GL_DMABUF_BUFFER_POOL_H_
|
||||
#define _GST_GL_DMABUF_BUFFER_POOL_H_
|
||||
|
||||
#include <gst/gl/gstglbufferpool.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
typedef struct _GstGLDMABufBufferPoolPrivate GstGLDMABufBufferPoolPrivate;
|
||||
|
||||
/**
|
||||
* GST_TYPE_GL_DMABUF_BUFFER_POOL:
|
||||
*
|
||||
* Since: 1.26
|
||||
*/
|
||||
#define GST_TYPE_GL_DMABUF_BUFFER_POOL (gst_gl_dmabuf_buffer_pool_get_type())
|
||||
G_DECLARE_FINAL_TYPE (GstGLDMABufBufferPool, gst_gl_dmabuf_buffer_pool, GST, GL_DMABUF_BUFFER_POOL, GstGLBufferPool)
|
||||
|
||||
/**
|
||||
* GstGLDMABufBufferPool:
|
||||
*
|
||||
* Opaque GstGLDMABufBufferPool struct
|
||||
*
|
||||
* Since: 1.26
|
||||
*/
|
||||
struct _GstGLDMABufBufferPool
|
||||
{
|
||||
GstGLBufferPool parent;
|
||||
|
||||
/*< private >*/
|
||||
GstGLDMABufBufferPoolPrivate *priv;
|
||||
};
|
||||
|
||||
GstBufferPool *gst_gl_dmabuf_buffer_pool_new (GstGLContext * context, GstBufferPool * dmabuf_pool);
|
||||
|
||||
gboolean gst_is_gl_dmabuf_buffer (GstBuffer * buffer);
|
||||
|
||||
GstBuffer *gst_gl_dmabuf_buffer_unwrap (GstBuffer * buffer);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* _GST_GL_DMABUF_BUFFER_POOL_H_ */
|
|
@ -25,6 +25,7 @@
|
|||
#include <gst/gl/gl.h>
|
||||
#include <gst/gl/gstglfuncs.h>
|
||||
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF
|
||||
#include <gstgldmabufbufferpool.h>
|
||||
#include <gst/gl/egl/gsteglimage.h>
|
||||
#include <gst/allocators/gstdmabuf.h>
|
||||
#endif
|
||||
|
@ -899,6 +900,8 @@ gst_gl_download_element_stop (GstBaseTransform * bt)
|
|||
dl->dmabuf_allocator = NULL;
|
||||
}
|
||||
|
||||
gst_clear_object (&dl->foreign_dmabuf_pool);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
@ -939,16 +942,82 @@ gst_gl_download_element_set_caps (GstBaseTransform * bt, GstCaps * in_caps,
|
|||
return TRUE;
|
||||
}
|
||||
|
||||
static GstCaps *
|
||||
_set_caps_features (const GstCaps * caps, const gchar * feature_name)
|
||||
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF
|
||||
static gboolean
|
||||
_convert_dma_drm (GstGLContext * context, GstStructure * s)
|
||||
{
|
||||
GstCaps *tmp = gst_caps_copy (caps);
|
||||
guint n = gst_caps_get_size (tmp);
|
||||
guint i = 0;
|
||||
const GValue *fmtval = gst_structure_get_value (s, "format");
|
||||
|
||||
for (i = 0; i < n; i++)
|
||||
gst_caps_set_features (tmp, i,
|
||||
if (!fmtval) {
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
if (G_VALUE_HOLDS_STRING (fmtval) &&
|
||||
g_str_equal (g_value_get_string (fmtval), "DMA_DRM")) {
|
||||
const GValue *drmval = gst_structure_get_value (s, "drm-format");
|
||||
GValue newfmtval = G_VALUE_INIT;
|
||||
|
||||
if (context && gst_gl_dma_buf_transform_drm_formats_to_gst_formats (context,
|
||||
drmval, 0, &newfmtval)) {
|
||||
gst_structure_set_value (s, "format", &newfmtval);
|
||||
gst_structure_remove_field (s, "drm-format");
|
||||
g_value_unset (&newfmtval);
|
||||
} else {
|
||||
return FALSE;
|
||||
}
|
||||
} else {
|
||||
GValue drmfmtval = G_VALUE_INIT;
|
||||
|
||||
if (!context) {
|
||||
gst_structure_remove_field (s, "drm-format");
|
||||
} else if (gst_gl_dma_buf_transform_gst_formats_to_drm_formats (context,
|
||||
fmtval, 0, &drmfmtval)) {
|
||||
gst_structure_set_value (s, "drm-format", &drmfmtval);
|
||||
g_value_unset (&drmfmtval);
|
||||
} else {
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
gst_structure_set (s, "format", G_TYPE_STRING,
|
||||
gst_video_format_to_string (GST_VIDEO_FORMAT_DMA_DRM), NULL);
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
#endif
|
||||
|
||||
static GstCaps *
|
||||
_set_caps_features (GstGLContext * context, const GstCaps * caps,
|
||||
const gchar * feature_name)
|
||||
{
|
||||
GstCaps *tmp = gst_caps_new_empty ();
|
||||
guint n = gst_caps_get_size (caps);
|
||||
guint i = 0;
|
||||
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF
|
||||
const gboolean new_feature_is_dmabuf =
|
||||
g_str_equal (feature_name, GST_CAPS_FEATURE_MEMORY_DMABUF);
|
||||
#endif
|
||||
|
||||
|
||||
for (i = 0; i < n; i++) {
|
||||
GstStructure *s = gst_structure_copy (gst_caps_get_structure (caps, i));
|
||||
|
||||
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF
|
||||
gboolean old_feature_is_dmabuf =
|
||||
gst_caps_features_contains (gst_caps_get_features (caps, i),
|
||||
GST_CAPS_FEATURE_MEMORY_DMABUF);
|
||||
|
||||
if (new_feature_is_dmabuf != old_feature_is_dmabuf) {
|
||||
if (!_convert_dma_drm (context, s)) {
|
||||
gst_clear_structure (&s);
|
||||
continue;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
gst_caps_append_structure_full (tmp, s,
|
||||
gst_caps_features_new_single_static_str (feature_name));
|
||||
}
|
||||
|
||||
return tmp;
|
||||
}
|
||||
|
@ -969,32 +1038,43 @@ static GstCaps *
|
|||
gst_gl_download_element_transform_caps (GstBaseTransform * bt,
|
||||
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
|
||||
{
|
||||
GstGLBaseFilter *base_filter = GST_GL_BASE_FILTER (bt);
|
||||
|
||||
GstGLContext *context;
|
||||
GstCaps *result, *tmp;
|
||||
|
||||
if (base_filter->display && !gst_gl_base_filter_find_gl_context (base_filter))
|
||||
return NULL;
|
||||
|
||||
context = gst_gl_base_filter_get_gl_context (base_filter);
|
||||
|
||||
if (direction == GST_PAD_SRC) {
|
||||
GstCaps *sys_caps = gst_caps_simplify (_set_caps_features (caps,
|
||||
GstCaps *sys_caps = gst_caps_simplify (_set_caps_features (context, caps,
|
||||
GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY));
|
||||
|
||||
tmp = _set_caps_features (sys_caps, GST_CAPS_FEATURE_MEMORY_GL_MEMORY);
|
||||
tmp = _set_caps_features (context, sys_caps,
|
||||
GST_CAPS_FEATURE_MEMORY_GL_MEMORY);
|
||||
tmp = gst_caps_merge (tmp, sys_caps);
|
||||
} else {
|
||||
GstCaps *newcaps;
|
||||
tmp = gst_caps_ref (caps);
|
||||
|
||||
#if GST_GL_HAVE_PLATFORM_EGL && defined(HAVE_NVMM)
|
||||
newcaps = _set_caps_features (caps, GST_CAPS_FEATURE_MEMORY_NVMM);
|
||||
newcaps = _set_caps_features (context, caps, GST_CAPS_FEATURE_MEMORY_NVMM);
|
||||
_remove_field (newcaps, "texture-target");
|
||||
// FIXME: RGBA-only?
|
||||
tmp = gst_caps_merge (tmp, newcaps);
|
||||
#endif
|
||||
|
||||
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF
|
||||
newcaps = _set_caps_features (caps, GST_CAPS_FEATURE_MEMORY_DMABUF);
|
||||
newcaps =
|
||||
_set_caps_features (context, caps, GST_CAPS_FEATURE_MEMORY_DMABUF);
|
||||
_remove_field (newcaps, "texture-target");
|
||||
tmp = gst_caps_merge (tmp, newcaps);
|
||||
#endif
|
||||
|
||||
newcaps = _set_caps_features (caps, GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY);
|
||||
newcaps = _set_caps_features (context, caps,
|
||||
GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY);
|
||||
_remove_field (newcaps, "texture-target");
|
||||
tmp = gst_caps_merge (tmp, newcaps);
|
||||
}
|
||||
|
@ -1292,6 +1372,16 @@ gst_gl_download_element_prepare_output_buffer (GstBaseTransform * bt,
|
|||
}
|
||||
#endif
|
||||
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF
|
||||
if (gst_is_gl_dmabuf_buffer (inbuf)) {
|
||||
GstBuffer *wrapped_dmabuf = gst_gl_dmabuf_buffer_unwrap (inbuf);
|
||||
|
||||
if (wrapped_dmabuf) {
|
||||
*outbuf = wrapped_dmabuf;
|
||||
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
}
|
||||
|
||||
if (dl->mode == GST_GL_DOWNLOAD_MODE_DMABUF_EXPORTS) {
|
||||
GstBuffer *buffer = _try_export_dmabuf (dl, inbuf);
|
||||
|
||||
|
@ -1306,14 +1396,15 @@ gst_gl_download_element_prepare_output_buffer (GstBaseTransform * bt,
|
|||
|
||||
*outbuf = buffer;
|
||||
} else {
|
||||
GstCaps *src_caps;
|
||||
GstCapsFeatures *features;
|
||||
GstCaps *sink_caps, *src_caps;
|
||||
gboolean ret;
|
||||
|
||||
src_caps = gst_pad_get_current_caps (bt->srcpad);
|
||||
src_caps = gst_caps_make_writable (src_caps);
|
||||
features = gst_caps_get_features (src_caps, 0);
|
||||
gst_caps_features_remove (features, GST_CAPS_FEATURE_MEMORY_DMABUF);
|
||||
sink_caps = gst_pad_get_current_caps (bt->sinkpad);
|
||||
src_caps = _set_caps_features (context, sink_caps,
|
||||
GST_CAPS_FEATURE_MEMORY_SYSTEM_MEMORY);
|
||||
_remove_field (src_caps, "texture-target");
|
||||
gst_caps_unref (sink_caps);
|
||||
|
||||
g_atomic_int_set (&dl->try_dmabuf_exports, FALSE);
|
||||
dl->mode = GST_GL_DOWNLOAD_MODE_PBO_TRANSFERS;
|
||||
|
||||
|
@ -1374,6 +1465,27 @@ gst_gl_download_element_decide_allocation (GstBaseTransform * trans,
|
|||
download->add_videometa = FALSE;
|
||||
}
|
||||
|
||||
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF
|
||||
{
|
||||
GstCaps *caps;
|
||||
const GstCapsFeatures *features;
|
||||
|
||||
gst_clear_object (&download->foreign_dmabuf_pool);
|
||||
|
||||
gst_query_parse_allocation (query, &caps, NULL);
|
||||
features = gst_caps_get_features (caps, 0);
|
||||
|
||||
if (gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_DMABUF) &&
|
||||
gst_query_get_n_allocation_pools (query) > 0) {
|
||||
|
||||
gst_query_parse_nth_allocation_pool (query, 0,
|
||||
&download->foreign_dmabuf_pool, NULL, NULL, NULL);
|
||||
|
||||
gst_query_remove_nth_allocation_pool (query, 0);
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
return GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (trans,
|
||||
query);
|
||||
}
|
||||
|
@ -1446,6 +1558,16 @@ gst_gl_download_element_propose_allocation (GstBaseTransform * bt,
|
|||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
#if GST_GL_HAVE_PLATFORM_EGL && GST_GL_HAVE_DMABUF
|
||||
if (!pool && GST_GL_DOWNLOAD_ELEMENT (bt)->foreign_dmabuf_pool) {
|
||||
pool = gst_gl_dmabuf_buffer_pool_new (context,
|
||||
GST_GL_DOWNLOAD_ELEMENT (bt)->foreign_dmabuf_pool);
|
||||
|
||||
GST_LOG_OBJECT (bt, "offering dma-buf-backed GL buffer pool");
|
||||
}
|
||||
#endif
|
||||
|
||||
if (!pool) {
|
||||
pool = gst_gl_buffer_pool_new (context);
|
||||
}
|
||||
|
|
|
@ -54,6 +54,7 @@ struct _GstGLDownloadElement
|
|||
GstGlDownloadMode mode;
|
||||
gboolean try_dmabuf_exports;
|
||||
GstAllocator * dmabuf_allocator;
|
||||
GstBufferPool * foreign_dmabuf_pool;
|
||||
gboolean add_videometa;
|
||||
};
|
||||
|
||||
|
|
|
@ -93,6 +93,12 @@ if png_dep.found()
|
|||
endif
|
||||
endif
|
||||
|
||||
if glconf.get('GST_GL_HAVE_DMABUF', 0) == 1
|
||||
opengl_sources += [
|
||||
'gstgldmabufbufferpool.c',
|
||||
]
|
||||
endif
|
||||
|
||||
if glconf.get('GST_GL_HAVE_WINDOW_COCOA', 0) == 1
|
||||
corefoundation_dep = dependency('appleframeworks', modules : ['CoreFoundation'], required : false)
|
||||
foundation_dep = dependency('appleframeworks', modules : ['Foundation'], required : false)
|
||||
|
|
Loading…
Reference in a new issue