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0fb7c60508
Refactor the GstVaapiCodedBuffer APIs so that to more clearly separate public and private interfaces. Besides, the map/unmap APIs should not be exposed as is but appropriate accessors should be provided instead. * GstVaapiCodedBuffer: VA coded buffer abstraction - gst_vaapi_coded_buffer_get_size(): get coded buffer size. - gst_vaapi_coded_buffer_copy_into(): copy coded buffer into GstBuffer * GstVaapiCodedBufferPool: pool of VA coded buffer objects - gst_vaapi_coded_buffer_pool_new(): create a pool of coded buffers of the specified max size, and bound to the supplied encoder * GstVaapiCodedBufferProxy: pool-allocated VA coded buffer object proxy - gst_vaapi_coded_buffer_proxy_new_from_pool(): create coded buf from pool - gst_vaapi_coded_buffer_proxy_get_buffer(): get underlying coded buffer - gst_vaapi_coded_buffer_proxy_get_buffer_size(): get coded buffer size Rationale: more optimized transfer functions might be provided in the future, thus rendering the map/unmap mechanism obsolete or sub-optimal. https://bugzilla.gnome.org/show_bug.cgi?id=719775
113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
/*
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* gstvaapicodedbufferpool.c - VA coded buffer pool
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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 "gstvaapicodedbufferpool.h"
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#include "gstvaapicodedbuffer_priv.h"
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#include "gstvaapivideopool_priv.h"
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#include "gstvaapiencoder_priv.h"
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#define DEBUG 1
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#include "gstvaapidebug.h"
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/**
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* GstVaapiCodedBufferPool:
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*
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* A pool of lazily allocated #GstVaapiCodedBuffer objects.
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*/
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struct _GstVaapiCodedBufferPool
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{
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/*< private >*/
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GstVaapiVideoPool parent_instance;
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GstVaapiContext *context;
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gsize buf_size;
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};
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static void
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coded_buffer_pool_init (GstVaapiCodedBufferPool * pool,
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GstVaapiContext * context, gsize buf_size)
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{
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pool->context = gst_vaapi_object_ref (context);
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pool->buf_size = buf_size;
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}
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static void
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coded_buffer_pool_finalize (GstVaapiCodedBufferPool * pool)
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{
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gst_vaapi_object_replace (&pool->context, NULL);
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}
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static gpointer
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coded_buffer_pool_alloc_object (GstVaapiVideoPool * base_pool)
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{
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GstVaapiCodedBufferPool *const pool = GST_VAAPI_CODED_BUFFER_POOL (base_pool);
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return gst_vaapi_coded_buffer_new (pool->context, pool->buf_size);
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}
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static inline const GstVaapiMiniObjectClass *
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gst_vaapi_coded_buffer_pool_class (void)
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{
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static const GstVaapiVideoPoolClass GstVaapiCodedBufferPoolClass = {
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{ sizeof (GstVaapiCodedBufferPool),
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(GDestroyNotify)coded_buffer_pool_finalize },
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.alloc_object = coded_buffer_pool_alloc_object
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};
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return GST_VAAPI_MINI_OBJECT_CLASS (&GstVaapiCodedBufferPoolClass);
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}
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/**
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* gst_vaapi_coded_buffer_pool_new:
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* @encoder: a #GstVaapiEncoder
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* @buf_size: the max size of #GstVaapiCodedBuffer objects, in bytes
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*
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* Creates a new #GstVaapiVideoPool of #GstVaapiCodedBuffer objects
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* with the supplied maximum size in bytes, and bound to the specified
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* @encoder object.
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*
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* Return value: the newly allocated #GstVaapiVideoPool
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*/
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GstVaapiVideoPool *
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gst_vaapi_coded_buffer_pool_new (GstVaapiEncoder * encoder, gsize buf_size)
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{
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GstVaapiVideoPool *pool;
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GstVaapiContext *context;
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g_return_val_if_fail (encoder != NULL, NULL);
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g_return_val_if_fail (buf_size > 0, NULL);
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context = GST_VAAPI_ENCODER_CONTEXT (encoder);
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g_return_val_if_fail (context != NULL, NULL);
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pool = (GstVaapiVideoPool *)
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gst_vaapi_mini_object_new (gst_vaapi_coded_buffer_pool_class ());
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if (!pool)
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return NULL;
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gst_vaapi_video_pool_init (pool, GST_VAAPI_OBJECT_DISPLAY (context),
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GST_VAAPI_VIDEO_POOL_OBJECT_TYPE_CODED_BUFFER);
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coded_buffer_pool_init (GST_VAAPI_CODED_BUFFER_POOL (pool),
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context, buf_size);
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return pool;
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}
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