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256 lines
7.7 KiB
C
256 lines
7.7 KiB
C
/*
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* gstvaapicodedbufferproxy.c - VA coded buffer proxy
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*
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* Copyright (C) 2013 Intel Corporation
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* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.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 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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#include "sysdeps.h"
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#include "gstvaapicodedbufferproxy.h"
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#include "gstvaapicodedbufferproxy_priv.h"
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#include "gstvaapivideopool_priv.h"
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#define DEBUG 1
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#include "gstvaapidebug.h"
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static void
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coded_buffer_proxy_set_user_data (GstVaapiCodedBufferProxy * proxy,
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gpointer user_data, GDestroyNotify destroy_func)
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{
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if (proxy->user_data_destroy)
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proxy->user_data_destroy (proxy->user_data);
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proxy->user_data = user_data;
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proxy->user_data_destroy = destroy_func;
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}
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static void
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coded_buffer_proxy_finalize (GstVaapiCodedBufferProxy * proxy)
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{
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if (proxy->buffer) {
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if (proxy->pool)
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gst_vaapi_video_pool_put_object (proxy->pool, proxy->buffer);
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gst_vaapi_coded_buffer_unref (proxy->buffer);
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proxy->buffer = NULL;
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}
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gst_vaapi_video_pool_replace (&proxy->pool, NULL);
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coded_buffer_proxy_set_user_data (proxy, NULL, NULL);
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/* Notify the user function that the object is now destroyed */
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if (proxy->destroy_func)
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proxy->destroy_func (proxy->destroy_data);
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}
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static inline const GstVaapiMiniObjectClass *
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gst_vaapi_coded_buffer_proxy_class (void)
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{
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static const GstVaapiMiniObjectClass GstVaapiCodedBufferProxyClass = {
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sizeof (GstVaapiCodedBufferProxy),
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(GDestroyNotify) coded_buffer_proxy_finalize
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};
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return &GstVaapiCodedBufferProxyClass;
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}
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/**
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* gst_vaapi_coded_buffer_proxy_new_from_pool:
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* @pool: a #GstVaapiCodedBufferPool
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*
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* Allocates a new coded buffer from the supplied @pool and creates
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* the wrapped coded buffer proxy object from it. When the last
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* reference to the proxy object is released, then the underlying VA
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* coded buffer is pushed back to its parent pool.
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*
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* Returns: The same newly allocated @proxy object, or %NULL on error
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*/
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GstVaapiCodedBufferProxy *
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gst_vaapi_coded_buffer_proxy_new_from_pool (GstVaapiCodedBufferPool * pool)
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{
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GstVaapiCodedBufferProxy *proxy;
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g_return_val_if_fail (pool != NULL, NULL);
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g_return_val_if_fail (GST_VAAPI_VIDEO_POOL (pool)->object_type ==
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GST_VAAPI_VIDEO_POOL_OBJECT_TYPE_CODED_BUFFER, NULL);
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proxy = (GstVaapiCodedBufferProxy *)
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gst_vaapi_mini_object_new (gst_vaapi_coded_buffer_proxy_class ());
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if (!proxy)
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return NULL;
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proxy->destroy_func = NULL;
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proxy->user_data_destroy = NULL;
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proxy->pool = gst_vaapi_video_pool_ref (GST_VAAPI_VIDEO_POOL (pool));
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proxy->buffer = gst_vaapi_video_pool_get_object (proxy->pool);
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if (!proxy->buffer)
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goto error;
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gst_mini_object_ref (GST_MINI_OBJECT_CAST (proxy->buffer));
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return proxy;
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/* ERRORS */
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error:
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{
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gst_vaapi_coded_buffer_proxy_unref (proxy);
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return NULL;
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}
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}
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/**
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* gst_vaapi_coded_buffer_proxy_ref:
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* @proxy: a #GstVaapiCodedBufferProxy
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*
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* Atomically increases the reference count of the given @proxy by one.
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*
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* Returns: The same @proxy argument
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*/
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GstVaapiCodedBufferProxy *
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gst_vaapi_coded_buffer_proxy_ref (GstVaapiCodedBufferProxy * proxy)
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{
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g_return_val_if_fail (proxy != NULL, NULL);
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return GST_VAAPI_CODED_BUFFER_PROXY (gst_vaapi_mini_object_ref
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(GST_VAAPI_MINI_OBJECT (proxy)));
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}
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/**
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* gst_vaapi_coded_buffer_proxy_unref:
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* @proxy: a #GstVaapiCodedBufferProxy
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*
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* Atomically decreases the reference count of the @proxy by one. If
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* the reference count reaches zero, the object will be free'd.
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*/
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void
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gst_vaapi_coded_buffer_proxy_unref (GstVaapiCodedBufferProxy * proxy)
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{
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g_return_if_fail (proxy != NULL);
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gst_vaapi_mini_object_unref (GST_VAAPI_MINI_OBJECT (proxy));
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}
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/**
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* gst_vaapi_coded_buffer_proxy_replace:
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* @old_proxy_ptr: a pointer to a #GstVaapiCodedBufferProxy
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* @new_proxy: a #GstVaapiCodedBufferProxy
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*
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* Atomically replaces the proxy object held in @old_proxy_ptr with
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* @new_proxy. This means that @old_proxy_ptr shall reference a valid
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* object. However, @new_proxy can be NULL.
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*/
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void
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gst_vaapi_coded_buffer_proxy_replace (GstVaapiCodedBufferProxy ** old_proxy_ptr,
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GstVaapiCodedBufferProxy * new_proxy)
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{
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g_return_if_fail (old_proxy_ptr != NULL);
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gst_vaapi_mini_object_replace ((GstVaapiMiniObject **) old_proxy_ptr,
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GST_VAAPI_MINI_OBJECT (new_proxy));
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}
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/**
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* gst_vaapi_coded_buffer_proxy_get_buffer:
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* @proxy: a #GstVaapiCodedBufferProxy
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*
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* Returns the #GstVaapiCodedBuffer stored in the @proxy.
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*
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* Return value: the #GstVaapiCodedBuffer, or %NULL if an error occurred
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*/
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GstVaapiCodedBuffer *
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gst_vaapi_coded_buffer_proxy_get_buffer (GstVaapiCodedBufferProxy * proxy)
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{
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g_return_val_if_fail (proxy != NULL, NULL);
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return GST_VAAPI_CODED_BUFFER_PROXY_BUFFER (proxy);
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}
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/**
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* gst_vaapi_coded_buffer_proxy_get_buffer_size:
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* @proxy: a #GstVaapiCodedBufferProxy
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*
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* Returns the size of the underlying #GstVaapiCodedBuffer object
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* stored in the @proxy.
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*
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* Return value: the underlying #GstVaapiCodedBuffer size, or -1 if an
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* error occurred
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*/
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gssize
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gst_vaapi_coded_buffer_proxy_get_buffer_size (GstVaapiCodedBufferProxy * proxy)
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{
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g_return_val_if_fail (proxy != NULL, -1);
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return GST_VAAPI_CODED_BUFFER_PROXY_BUFFER_SIZE (proxy);
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}
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/**
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* gst_vaapi_coded_buffer_proxy_set_destroy_notify:
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* @proxy: a @GstVaapiCodedBufferProxy
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* @destroy_func: a #GDestroyNotify function
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* @user_data: some extra data to pass to the @destroy_func function
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*
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* Sets @destroy_func as the function to call when the coded buffer
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* @proxy was released. At this point, the proxy object is considered
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* released, i.e. the underlying data storage is no longer valid and
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* the callback function shall not expect anything from that.
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*/
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void
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gst_vaapi_coded_buffer_proxy_set_destroy_notify (GstVaapiCodedBufferProxy *
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proxy, GDestroyNotify destroy_func, gpointer user_data)
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{
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g_return_if_fail (proxy != NULL);
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proxy->destroy_func = destroy_func;
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proxy->destroy_data = user_data;
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}
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/**
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* gst_vaapi_coded_buffer_proxy_get_user_data:
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* @proxy: a #GstVaapiCodedBufferProxy
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*
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* Gets private data previously set on the VA coded buffer proxy
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* object through the gst_vaapi_coded_buffer_proxy_set_user_data()
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* function.
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*
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* Return value: the previously set user-data
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*/
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gpointer
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gst_vaapi_coded_buffer_proxy_get_user_data (GstVaapiCodedBufferProxy * proxy)
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{
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g_return_val_if_fail (proxy != NULL, NULL);
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return proxy->user_data;
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}
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/**
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* gst_vaapi_coded_buffer_proxy_set_user_data:
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* @proxy: a #GstVaapiCodedBufferProxy
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* @user_data: user-defined data
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* @destroy_func: a #GDestroyNotify
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*
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* Sets @user_data on the VA coded buffer proxy object and the
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* #GDestroyNotify function that will be called when the coded buffer
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* proxy object is released.
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*
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* If a @user_data was previously set, then the previously set
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* @destroy_func function, if any, will be called before the
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* @user_data is replaced.
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*/
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void
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gst_vaapi_coded_buffer_proxy_set_user_data (GstVaapiCodedBufferProxy * proxy,
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gpointer user_data, GDestroyNotify destroy_func)
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{
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g_return_if_fail (proxy != NULL);
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coded_buffer_proxy_set_user_data (proxy, user_data, destroy_func);
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}
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