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diff --git a/tinyDAV/src/audio/tdav_producer_audio.c b/tinyDAV/src/audio/tdav_producer_audio.c
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+/*
+* Copyright (C) 2009-2010 Mamadou Diop.
+*
+* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
+*
+* This file is part of Open Source Doubango Framework.
+*
+* DOUBANGO is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* DOUBANGO is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with DOUBANGO.
+*
+*/
+
+/**@file tdav_producer_audio.c
+ * @brief Base class for all Audio producers.
+ *
+ * @author Mamadou Diop <diopmamadou(at)doubango.org>
+ *
+ * @date Created: Sat Nov 8 16:54:58 2009 mdiop
+ */
+#include "tinydav/audio/tdav_producer_audio.h"
+
+#define TDAV_BITS_PER_SAMPLE_DEFAULT 16
+#define TDAV_CHANNELS_DEFAULT 1
+#define TDAV_RATE_DEFAULT 8000
+#define TDAV_PTIME_DEFAULT 20
+
+#include "tsk_debug.h"
+
+/** Initialize Audio producer
+* @param self The producer to initialize
+*/
+int tdav_producer_audio_init(tdav_producer_audio_t* self)
+{
+ int ret;
+
+ if(!self){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+ /* base */
+ if((ret = tmedia_producer_init(TMEDIA_PRODUCER(self)))){
+ return ret;
+ }
+
+ /* self (should be update by prepare() by using the codec's info)*/
+ self->bits_per_sample = TDAV_BITS_PER_SAMPLE_DEFAULT;
+ self->channels = TDAV_CHANNELS_DEFAULT;
+ self->rate = TDAV_RATE_DEFAULT;
+ self->ptime = TDAV_PTIME_DEFAULT;
+
+ return 0;
+}
+
+/**
+* Generic function to compare two producers.
+* @param producer1 The first producer to compare.
+* @param producer2 The second producer to compare.
+* @retval Returns an integral value indicating the relationship between the two producers:
+* <0 : @a producer1 less than @a producer2.<br>
+* 0 : @a producer1 identical to @a producer2.<br>
+* >0 : @a producer1 greater than @a producer2.<br>
+*/
+int tdav_producer_audio_cmp(const tsk_object_t* producer1, const tsk_object_t* producer2)
+{
+ return (TDAV_PRODUCER_AUDIO(producer1) - TDAV_PRODUCER_AUDIO(producer2));
+}
+
+/** Deinitialize a producer
+*/
+int tdav_producer_audio_deinit(tdav_producer_audio_t* self)
+{
+ int ret;
+
+ if(!self){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ /* base */
+ if((ret = tmedia_producer_deinit(TMEDIA_PRODUCER(self)))){
+ return ret;
+ }
+
+ return ret;
+} \ No newline at end of file
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