/*
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* GStreamer
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* Copyright (C) 2016 Igalia
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*
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* Authors:
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* Víctor Manuel Jáquez Leal <vjaquez@igalia.com>
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* Javier Martin <javiermartin@by.com.es>
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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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*/
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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 <gst/video/gstvideometa.h>
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#include "gstkmsbufferpool.h"
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#include "gstkmsallocator.h"
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GST_DEBUG_CATEGORY_STATIC (gst_kms_buffer_pool_debug);
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#define GST_CAT_DEFAULT gst_kms_buffer_pool_debug
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struct _GstKMSBufferPoolPrivate
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{
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GstVideoInfo vinfo;
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GstAllocator *allocator;
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gboolean add_videometa;
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gboolean has_prime_export;
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};
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#define parent_class gst_kms_buffer_pool_parent_class
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G_DEFINE_TYPE_WITH_CODE (GstKMSBufferPool, gst_kms_buffer_pool,
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GST_TYPE_VIDEO_BUFFER_POOL, G_ADD_PRIVATE (GstKMSBufferPool);
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GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "kmsbufferpool", 0,
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"KMS buffer pool"));
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static const gchar **
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gst_kms_buffer_pool_get_options (GstBufferPool * pool)
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{
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static const gchar *options[] = { GST_BUFFER_POOL_OPTION_VIDEO_META,
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GST_BUFFER_POOL_OPTION_KMS_BUFFER,
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GST_BUFFER_POOL_OPTION_KMS_PRIME_EXPORT,
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NULL
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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_kms_buffer_pool_set_config (GstBufferPool * pool, GstStructure * config)
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{
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GstKMSBufferPool *vpool;
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GstKMSBufferPoolPrivate *priv;
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GstCaps *caps;
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GstVideoInfo vinfo;
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GstAllocator *allocator;
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GstAllocationParams params;
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vpool = GST_KMS_BUFFER_POOL_CAST (pool);
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priv = vpool->priv;
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if (!gst_buffer_pool_config_get_params (config, &caps, NULL, NULL, NULL))
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goto wrong_config;
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if (!caps)
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goto no_caps;
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/* now parse the caps from the config */
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if (!gst_video_info_from_caps (&vinfo, caps))
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goto wrong_caps;
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allocator = NULL;
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gst_buffer_pool_config_get_allocator (config, &allocator, ¶ms);
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/* not our allocator, not our buffers */
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if (allocator && GST_IS_KMS_ALLOCATOR (allocator)) {
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if (priv->allocator)
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gst_object_unref (priv->allocator);
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priv->allocator = gst_object_ref (allocator);
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}
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if (!priv->allocator)
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goto no_allocator;
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priv->vinfo = vinfo;
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/* enable metadata based on config of the pool */
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priv->add_videometa = gst_buffer_pool_config_has_option (config,
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GST_BUFFER_POOL_OPTION_VIDEO_META);
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priv->has_prime_export = gst_buffer_pool_config_has_option (config,
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GST_BUFFER_POOL_OPTION_KMS_PRIME_EXPORT);
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return GST_BUFFER_POOL_CLASS (parent_class)->set_config (pool, config);
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/* ERRORS */
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wrong_config:
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{
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GST_WARNING_OBJECT (pool, "invalid config");
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return FALSE;
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}
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no_caps:
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{
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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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wrong_caps:
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{
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GST_WARNING_OBJECT (pool,
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"failed getting geometry from caps %" GST_PTR_FORMAT, caps);
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return FALSE;
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}
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no_allocator:
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{
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GST_WARNING_OBJECT (pool, "no valid allocator in pool");
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return FALSE;
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}
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}
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static GstFlowReturn
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gst_kms_buffer_pool_alloc_buffer (GstBufferPool * pool, GstBuffer ** buffer,
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GstBufferPoolAcquireParams * params)
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{
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GstKMSBufferPool *vpool;
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GstKMSBufferPoolPrivate *priv;
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GstVideoInfo *info;
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GstMemory *mem;
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vpool = GST_KMS_BUFFER_POOL_CAST (pool);
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priv = vpool->priv;
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info = &priv->vinfo;
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mem = gst_kms_allocator_bo_alloc (priv->allocator, info);
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if (!mem)
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goto no_memory;
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if (vpool->priv->has_prime_export) {
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GstMemory *dmabufmem;
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dmabufmem = gst_kms_allocator_dmabuf_export (priv->allocator, mem);
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if (dmabufmem)
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mem = dmabufmem;
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else
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GST_WARNING_OBJECT (pool, "Failed to export DMABuf from Dumb buffer.");
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}
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*buffer = gst_buffer_new ();
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gst_buffer_append_memory (*buffer, mem);
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if (priv->add_videometa) {
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GST_DEBUG_OBJECT (pool, "adding GstVideoMeta");
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gst_buffer_add_video_meta_full (*buffer, GST_VIDEO_FRAME_FLAG_NONE,
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GST_VIDEO_INFO_FORMAT (info),
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GST_VIDEO_INFO_WIDTH (info), GST_VIDEO_INFO_HEIGHT (info),
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GST_VIDEO_INFO_N_PLANES (info), info->offset, info->stride);
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}
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return GST_FLOW_OK;
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/* ERROR */
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no_memory:
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{
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GST_WARNING_OBJECT (pool, "can't create 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_kms_buffer_pool_finalize (GObject * object)
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{
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GstKMSBufferPool *pool;
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GstKMSBufferPoolPrivate *priv;
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pool = GST_KMS_BUFFER_POOL (object);
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priv = pool->priv;
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if (priv->allocator)
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gst_object_unref (priv->allocator);
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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_kms_buffer_pool_init (GstKMSBufferPool * pool)
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{
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pool->priv = gst_kms_buffer_pool_get_instance_private (pool);
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}
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static void
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gst_kms_buffer_pool_class_init (GstKMSBufferPoolClass * klass)
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{
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GObjectClass *gobject_class;
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GstBufferPoolClass *gstbufferpool_class;
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gobject_class = (GObjectClass *) klass;
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gstbufferpool_class = (GstBufferPoolClass *) klass;
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gobject_class->finalize = gst_kms_buffer_pool_finalize;
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gstbufferpool_class->get_options = gst_kms_buffer_pool_get_options;
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gstbufferpool_class->set_config = gst_kms_buffer_pool_set_config;
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gstbufferpool_class->alloc_buffer = gst_kms_buffer_pool_alloc_buffer;
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}
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GstBufferPool *
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gst_kms_buffer_pool_new (void)
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{
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GstBufferPool *pool;
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pool = g_object_new (GST_TYPE_KMS_BUFFER_POOL, NULL);
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gst_object_ref_sink (pool);
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return pool;
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}
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