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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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146 lines
4 KiB
C
146 lines
4 KiB
C
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 4; tab-width: 4 -*- */
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/*
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* gst-plugins-bad
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* Copyright (C) Carl-Anton Ingmarsson 2010 <ca.ingmarsson@gmail.com>
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*
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* gst-plugins-bad is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* gst-plugins-bad is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "gstvdpdevice.h"
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#include "gstvdpvideobuffer.h"
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#include "gstvdpvideobufferpool.h"
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struct _GstVdpVideoBufferPool
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{
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GstVdpBufferPool buffer_pool;
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VdpChromaType chroma_type;
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guint width, height;
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};
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G_DEFINE_TYPE (GstVdpVideoBufferPool, gst_vdp_video_buffer_pool,
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GST_TYPE_VDP_BUFFER_POOL);
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GstVdpBufferPool *
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gst_vdp_video_buffer_pool_new (GstVdpDevice * device)
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{
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g_return_val_if_fail (GST_IS_VDP_DEVICE (device), NULL);
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return g_object_new (GST_TYPE_VDP_VIDEO_BUFFER_POOL, "device", device, NULL);
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}
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static gboolean
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parse_caps (const GstCaps * caps, VdpChromaType * chroma_type, gint * width,
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gint * height)
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{
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GstStructure *structure;
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structure = gst_caps_get_structure (caps, 0);
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if (!gst_structure_get_int (structure, "chroma-type", (gint *) chroma_type))
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return FALSE;
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if (!gst_structure_get_int (structure, "width", width))
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return FALSE;
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if (!gst_structure_get_int (structure, "height", height))
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return FALSE;
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return TRUE;
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}
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static gboolean
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gst_vdp_video_buffer_pool_check_caps (GstVdpBufferPool * bpool,
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const GstCaps * caps)
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{
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GstVdpVideoBufferPool *vpool = GST_VDP_VIDEO_BUFFER_POOL (bpool);
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VdpChromaType chroma_type;
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gint width, height;
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if (!parse_caps (caps, &chroma_type, &width, &height))
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return FALSE;
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if (chroma_type != vpool->chroma_type || width != vpool->width ||
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height != vpool->height)
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return FALSE;
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return TRUE;
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}
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static gboolean
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gst_vdp_video_buffer_pool_set_caps (GstVdpBufferPool * bpool,
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const GstCaps * caps, gboolean * clear_bufs)
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{
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GstVdpVideoBufferPool *vpool = GST_VDP_VIDEO_BUFFER_POOL (bpool);
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VdpChromaType chroma_type;
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gint width, height;
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if (!parse_caps (caps, &chroma_type, &width, &height))
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return FALSE;
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if (chroma_type != vpool->chroma_type || width != vpool->width ||
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height != vpool->height)
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*clear_bufs = TRUE;
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else
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*clear_bufs = FALSE;
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vpool->chroma_type = chroma_type;
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vpool->width = width;
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vpool->height = height;
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return TRUE;
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}
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static GstVdpBuffer *
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gst_vdp_video_buffer_pool_alloc_buffer (GstVdpBufferPool * bpool,
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GError ** error)
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{
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GstVdpVideoBufferPool *vpool = GST_VDP_VIDEO_BUFFER_POOL (bpool);
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GstVdpDevice *device;
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device = gst_vdp_buffer_pool_get_device (bpool);
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return GST_VDP_BUFFER_CAST (gst_vdp_video_buffer_new (device,
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vpool->chroma_type, vpool->width, vpool->height, error));
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}
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static void
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gst_vdp_video_buffer_pool_finalize (GObject * object)
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{
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/* TODO: Add deinitalization code here */
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G_OBJECT_CLASS (gst_vdp_video_buffer_pool_parent_class)->finalize (object);
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}
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static void
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gst_vdp_video_buffer_pool_init (GstVdpVideoBufferPool * vpool)
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{
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vpool->chroma_type = -1;
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vpool->width = 0;
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vpool->height = 0;
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}
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static void
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gst_vdp_video_buffer_pool_class_init (GstVdpVideoBufferPoolClass * klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GstVdpBufferPoolClass *buffer_pool_class = GST_VDP_BUFFER_POOL_CLASS (klass);
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buffer_pool_class->alloc_buffer = gst_vdp_video_buffer_pool_alloc_buffer;
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buffer_pool_class->set_caps = gst_vdp_video_buffer_pool_set_caps;
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buffer_pool_class->check_caps = gst_vdp_video_buffer_pool_check_caps;
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object_class->finalize = gst_vdp_video_buffer_pool_finalize;
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}
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