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137 lines
3.5 KiB
C
137 lines
3.5 KiB
C
/* GStreamer
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* Copyright (C) 2016 Wim Taymans <wim.taymans@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 Street, Suite 500,
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* Boston, MA 02110-1335, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include "gstpinospool.h"
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GST_DEBUG_CATEGORY_STATIC (gst_pinos_pool_debug_category);
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#define GST_CAT_DEFAULT gst_pinos_pool_debug_category
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G_DEFINE_TYPE (GstPinosPool, gst_pinos_pool, GST_TYPE_BUFFER_POOL);
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GstPinosPool *
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gst_pinos_pool_new (void)
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{
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GstPinosPool *pool;
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pool = g_object_new (GST_TYPE_PINOS_POOL, NULL);
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return pool;
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}
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gboolean
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gst_pinos_pool_add_buffer (GstPinosPool *pool, GstBuffer *buffer)
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{
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g_return_val_if_fail (GST_IS_PINOS_POOL (pool), FALSE);
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g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
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GST_OBJECT_LOCK (pool);
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g_queue_push_tail (&pool->available, buffer);
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g_cond_signal (&pool->cond);
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GST_OBJECT_UNLOCK (pool);
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return TRUE;
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}
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gboolean
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gst_pinos_pool_remove_buffer (GstPinosPool *pool, GstBuffer *buffer)
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{
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g_return_val_if_fail (GST_IS_PINOS_POOL (pool), FALSE);
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g_return_val_if_fail (GST_IS_BUFFER (buffer), FALSE);
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GST_OBJECT_LOCK (pool);
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g_queue_remove (&pool->available, buffer);
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GST_OBJECT_UNLOCK (pool);
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return TRUE;
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}
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static GstFlowReturn
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acquire_buffer (GstBufferPool * pool, GstBuffer ** buffer,
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GstBufferPoolAcquireParams * params)
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{
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GstPinosPool *p = GST_PINOS_POOL (pool);
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GST_OBJECT_LOCK (pool);
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while (p->available.length == 0) {
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GST_WARNING ("queue empty");
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g_cond_wait (&p->cond, GST_OBJECT_GET_LOCK (pool));
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}
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*buffer = g_queue_pop_head (&p->available);
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GST_OBJECT_UNLOCK (pool);
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GST_DEBUG ("acquire buffer %p", *buffer);
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return GST_FLOW_OK;
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}
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static void
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release_buffer (GstBufferPool * pool, GstBuffer *buffer)
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{
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GstPinosPool *p = GST_PINOS_POOL (pool);
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GST_DEBUG ("release buffer %p", buffer);
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GST_OBJECT_LOCK (pool);
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g_queue_push_tail (&p->available, buffer);
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g_cond_signal (&p->cond);
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GST_OBJECT_UNLOCK (pool);
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}
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static gboolean
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do_start (GstBufferPool * pool)
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{
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return TRUE;
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}
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static void
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gst_pinos_pool_finalize (GObject * object)
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{
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GstPinosPool *pool = GST_PINOS_POOL (object);
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GST_DEBUG_OBJECT (pool, "finalize");
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G_OBJECT_CLASS (gst_pinos_pool_parent_class)->finalize (object);
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}
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static void
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gst_pinos_pool_class_init (GstPinosPoolClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstBufferPoolClass *bufferpool_class = GST_BUFFER_POOL_CLASS (klass);
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gobject_class->finalize = gst_pinos_pool_finalize;
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bufferpool_class->start = do_start;
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bufferpool_class->acquire_buffer = acquire_buffer;
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bufferpool_class->release_buffer = release_buffer;
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GST_DEBUG_CATEGORY_INIT (gst_pinos_pool_debug_category, "pinospool", 0,
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"debug category for pinospool object");
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}
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static void
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gst_pinos_pool_init (GstPinosPool * pool)
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{
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g_cond_init (&pool->cond);
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g_queue_init (&pool->available);
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}
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