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148 lines
4.1 KiB
C
148 lines
4.1 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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* 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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#include "gstvdpdevice.h"
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#include "gstvdpoutputbuffer.h"
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#include "gstvdpoutputbufferpool.h"
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struct _GstVdpOutputBufferPool
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{
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GstVdpBufferPool buffer_pool;
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VdpRGBAFormat rgba_format;
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guint width, height;
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};
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G_DEFINE_TYPE (GstVdpOutputBufferPool, gst_vdp_output_buffer_pool,
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GST_TYPE_VDP_BUFFER_POOL);
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GstVdpBufferPool *
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gst_vdp_output_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_OUTPUT_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 * rgba_format, 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, "rgba-format", (gint *) rgba_format))
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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_output_buffer_pool_check_caps (GstVdpBufferPool * bpool,
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const GstCaps * caps)
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{
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GstVdpOutputBufferPool *opool = GST_VDP_OUTPUT_BUFFER_POOL (bpool);
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VdpChromaType rgba_format;
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gint width, height;
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if (!parse_caps (caps, &rgba_format, &width, &height))
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return FALSE;
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if (rgba_format != opool->rgba_format || width != opool->width ||
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height != opool->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_output_buffer_pool_set_caps (GstVdpBufferPool * bpool,
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const GstCaps * caps, gboolean * clear_bufs)
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{
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GstVdpOutputBufferPool *opool = GST_VDP_OUTPUT_BUFFER_POOL (bpool);
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VdpChromaType rgba_format;
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gint width, height;
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if (!parse_caps (caps, &rgba_format, &width, &height))
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return FALSE;
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if (rgba_format != opool->rgba_format || width != opool->width ||
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height != opool->height)
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*clear_bufs = TRUE;
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else
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*clear_bufs = FALSE;
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opool->rgba_format = rgba_format;
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opool->width = width;
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opool->height = height;
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return TRUE;
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}
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static GstVdpBuffer *
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gst_vdp_output_buffer_pool_alloc_buffer (GstVdpBufferPool * bpool,
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GError ** error)
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{
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GstVdpOutputBufferPool *opool = GST_VDP_OUTPUT_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_output_buffer_new (device,
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opool->rgba_format, opool->width, opool->height, error));
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}
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static void
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gst_vdp_output_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_output_buffer_pool_parent_class)->finalize (object);
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}
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static void
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gst_vdp_output_buffer_pool_init (GstVdpOutputBufferPool * opool)
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{
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opool->rgba_format = -1;
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opool->width = 0;
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opool->height = 0;
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}
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static void
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gst_vdp_output_buffer_pool_class_init (GstVdpOutputBufferPoolClass * 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_output_buffer_pool_alloc_buffer;
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buffer_pool_class->set_caps = gst_vdp_output_buffer_pool_set_caps;
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buffer_pool_class->check_caps = gst_vdp_output_buffer_pool_check_caps;
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object_class->finalize = gst_vdp_output_buffer_pool_finalize;
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}
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