1 /*****************************************************************************
2 * aout_dummy.c : dummy audio output plugin
3 *****************************************************************************
4 * Copyright (C) 2002 VideoLAN
5 * $Id: aout.c,v 1.10 2002/09/30 21:32:33 massiot Exp $
7 * Authors: Christophe Massiot <massiot@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
33 #include "aout_internal.h"
35 #define FRAME_SIZE 2048
36 #define A52_FRAME_NB 1536
38 /*****************************************************************************
40 *****************************************************************************/
41 static void Play ( aout_instance_t * );
43 /*****************************************************************************
44 * OpenAudio: open a dummy audio device
45 *****************************************************************************/
46 int E_(OpenAudio) ( vlc_object_t * p_this )
48 aout_instance_t * p_aout = (aout_instance_t *)p_this;
50 p_aout->output.pf_play = Play;
51 aout_VolumeSoftInit( p_aout );
53 if ( p_aout->output.output.i_format == VLC_FOURCC('s','p','d','i') )
55 p_aout->output.i_nb_samples = A52_FRAME_NB;
56 p_aout->output.output.i_bytes_per_frame = AOUT_SPDIF_SIZE;
57 p_aout->output.output.i_frame_length = A52_FRAME_NB;
61 p_aout->output.i_nb_samples = FRAME_SIZE;
66 /*****************************************************************************
67 * Play: pretend to play a sound
68 *****************************************************************************/
69 static void Play( aout_instance_t * p_aout )
71 aout_buffer_t * p_buffer = aout_FifoPop( p_aout, &p_aout->output.fifo );
72 aout_BufferFree( p_buffer );