1 /*****************************************************************************
2 * audio_test.c: MPEG1 Layer I-II audio decoder test program
3 *****************************************************************************
4 * Copyright (C) 1999, 2000 VideoLAN
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public
19 * License along with this program; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
22 *****************************************************************************/
27 * - optimiser les NeedBits() et les GetBits() du code là où c'est possible ;
28 * - vlc_cond_signal() / vlc_cond_wait() ;
32 /*****************************************************************************
34 *****************************************************************************/
39 #include "int_types.h"
40 #include "audio_decoder.h"
42 #define ADEC_FRAME_SIZE (2*1152)
47 adec_sync_info_t sync_info;
48 adec_byte_stream_t * stream;
49 s16 buffer [ADEC_FRAME_SIZE];
53 memset (&decoder, 0, sizeof (decoder));
54 if (adec_init (&decoder))
57 stream = adec_byte_stream (&decoder);
58 stream->p_byte = NULL;
67 if (adec_sync_frame (&decoder, &sync_info))
69 if (adec_decode_frame (&decoder, buffer))
73 for (i = 0; i < (2*1152); i++)
74 printf ("%04X\n",(u16)buffer[i]);
81 void adec_byte_stream_next (adec_byte_stream_t * p_byte_stream)
83 static u8 buffer [1024];
88 fd = p_byte_stream->info;
89 size = fread (buffer, 1, 1024, fd);
91 p_byte_stream->p_byte = buffer;
92 p_byte_stream->p_end = buffer + size;
93 } else { /* end of stream, read dummy zeroes */
94 p_byte_stream->p_byte = &dummy;
95 p_byte_stream->p_end = &dummy + 1;