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107 lines
3 KiB
C
107 lines
3 KiB
C
/*
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* gstvaapivideobuffer.c - Gst VA video buffer
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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* Copyright (C) 2011-2013 Intel Corporation
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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 Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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/**
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* SECTION:gstvaapivideobuffer
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* @short_description: VA video buffer for GStreamer
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*/
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#include "sysdeps.h"
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#include "gstvaapivideobuffer.h"
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#define DEBUG 1
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#include "gstvaapidebug.h"
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G_DEFINE_TYPE(GstVaapiVideoBuffer,
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gst_vaapi_video_buffer,
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GST_TYPE_SURFACE_BUFFER)
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typedef GstSurfaceConverter *(*GstSurfaceConverterCreateFunc)(
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GstSurfaceBuffer *surface, const gchar *type, GValue *dest);
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static GstSurfaceConverter *
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gst_vaapi_video_buffer_create_converter(GstSurfaceBuffer *surface,
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const gchar *type, GValue *dest)
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{
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GstVaapiVideoBuffer * const vbuffer = GST_VAAPI_VIDEO_BUFFER(surface);
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GstSurfaceConverterCreateFunc func;
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func = (GstSurfaceConverterCreateFunc)
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gst_vaapi_video_meta_get_surface_converter(vbuffer->meta);
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return func ? func(surface, type, dest) : NULL;
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}
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static void
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gst_vaapi_video_buffer_class_init(GstVaapiVideoBufferClass *klass)
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{
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GstSurfaceBufferClass * const surface_class =
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GST_SURFACE_BUFFER_CLASS(klass);
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surface_class->create_converter = gst_vaapi_video_buffer_create_converter;
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}
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static void
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gst_vaapi_video_buffer_init(GstVaapiVideoBuffer *buffer)
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{
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}
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/**
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* gst_vaapi_video_buffer_new:
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* @meta: a #GstVaapiVideoMeta
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*
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* Creates a #GstBuffer that holds video @meta information.
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*
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* Return value: the newly allocated #GstBuffer, or %NULL or error
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*/
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GstBuffer *
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gst_vaapi_video_buffer_new(GstVaapiVideoMeta *meta)
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{
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GstBuffer *buffer;
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g_return_val_if_fail(meta != NULL, NULL);
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buffer = GST_BUFFER_CAST(gst_mini_object_new(GST_TYPE_SURFACE_BUFFER));
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if (!buffer)
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return NULL;
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gst_buffer_set_vaapi_video_meta(buffer, meta);
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return buffer;
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}
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/**
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* gst_vaapi_video_buffer_get_meta:
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* @buffer: a #GstVaapiVideoBuffer
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*
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* Returns the #GstVaapiVideoMeta associated to this @buffer.
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*
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* Return value: the #GstVaapiVideoMeta bound to the @buffer, or %NULL
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* if none was found
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*/
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GstVaapiVideoMeta *
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gst_vaapi_video_buffer_get_meta(GstVaapiVideoBuffer *buffer)
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{
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g_return_val_if_fail(GST_VAAPI_IS_VIDEO_BUFFER(buffer), NULL);
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return buffer->meta;
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}
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