1 /*****************************************************************************
2 * aout_dummy.c : dummy audio output plugin
3 *****************************************************************************
4 * Copyright (C) 2002 the VideoLAN team
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
34 #define FRAME_SIZE 2048
35 #define A52_FRAME_NB 1536
37 /*****************************************************************************
39 *****************************************************************************/
40 static void Play ( aout_instance_t * );
42 /*****************************************************************************
43 * OpenAudio: open a dummy audio device
44 *****************************************************************************/
45 int E_(OpenAudio) ( vlc_object_t * p_this )
47 aout_instance_t * p_aout = (aout_instance_t *)p_this;
49 p_aout->output.pf_play = Play;
50 aout_VolumeSoftInit( p_aout );
52 if ( p_aout->output.output.i_format == VLC_FOURCC('s','p','d','i') )
54 p_aout->output.i_nb_samples = A52_FRAME_NB;
55 p_aout->output.output.i_bytes_per_frame = AOUT_SPDIF_SIZE;
56 p_aout->output.output.i_frame_length = A52_FRAME_NB;
60 p_aout->output.i_nb_samples = FRAME_SIZE;
65 /*****************************************************************************
66 * Play: pretend to play a sound
67 *****************************************************************************/
68 static void Play( aout_instance_t * p_aout )
70 aout_buffer_t * p_buffer = aout_FifoPop( p_aout, &p_aout->output.fifo );
71 aout_BufferFree( p_buffer );