callback.c

vlc源码

/*****************************************************************************
 * callback.c : Callbacks for CD digital audio input module
 *****************************************************************************
 * Copyright (C) 2004 the VideoLAN team
 * $Id$
 *
 * Authors: Rocky Bernstein <[e-mail]>
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

#include "callback.h"
#include "cdda.h"

int
CDDADebugCB   ( vlc_object_t *p_this, const char *psz_name,
                    vlc_value_t oldval, vlc_value_t val, void *p_data )
{
    cdda_data_t *p_cdda;

    if (NULL == p_cdda_input) return VLC_EGENERIC;

    p_cdda = (cdda_data_t *)p_cdda_input->p_sys;

    if (p_cdda->i_debug & (INPUT_DBG_CALL|INPUT_DBG_EXT))
    {
        msg_Dbg( p_cdda_input, "old debug (x%0x) %d, new debug (x%0x) %d",
                 p_cdda->i_debug, p_cdda->i_debug, val.i_int, val.i_int);
    }
    p_cdda->i_debug = val.i_int;
    return VLC_SUCCESS;
}

/* FIXME: could probably shorten some of the below boilerplate code...
*/
int
CDDBEnabledCB   ( vlc_object_t *p_this, const char *psz_name,
                      vlc_value_t oldval, vlc_value_t val, void *p_data )
{
    cdda_data_t *p_cdda;

    if (NULL == p_cdda_input) return VLC_EGENERIC;

    p_cdda = (cdda_data_t *)p_cdda_input->p_sys;

#ifdef HAVE_LIBCDDB
    if (p_cdda->i_debug & (INPUT_DBG_CALL|INPUT_DBG_EXT))
    {
        msg_Dbg( p_cdda_input, "old CDDB Enabled (x%0x) %d, new (x%0x) %d",
                 p_cdda->b_cddb_enabled, p_cdda->b_cddb_enabled,
                 val.b_bool, val.b_bool);
    }
    p_cdda->b_cddb_enabled = val.b_bool;
#endif
    return VLC_SUCCESS;
}

int
CDTextEnabledCB   ( vlc_object_t *p_this, const char *psz_name,
                        vlc_value_t oldval, vlc_value_t val, void *p_data )
{
    cdda_data_t *p_cdda;

    if (NULL == p_cdda_input) return VLC_EGENERIC;

    p_cdda = (cdda_data_t *)p_cdda_input->p_sys;

    if (p_cdda->i_debug & (INPUT_DBG_CALL|INPUT_DBG_EXT))
    {
        msg_Dbg( p_cdda_input, "old CDText Enabled %d, new %d",
                 p_cdda->b_cdtext, val.b_bool);
    }
    p_cdda->b_cdtext = val.b_bool;
    return VLC_SUCCESS;
}

int
CDDANavModeCB( vlc_object_t *p_this, const char *psz_name,
                        vlc_value_t oldval, vlc_value_t val, void *p_data )
{
    cdda_data_t *p_cdda;

    if (NULL == p_cdda_input) return VLC_EGENERIC;

    p_cdda = (cdda_data_t *)p_cdda_input->p_sys;

    if (p_cdda->i_debug & (INPUT_DBG_CALL|INPUT_DBG_EXT))
    {
        msg_Dbg( p_cdda_input,
         "old Navigation Mode Enabled %d, new %d",
                 p_cdda->b_nav_mode, val.b_bool);
    }
    p_cdda->b_nav_mode = val.b_bool;
    return VLC_SUCCESS;
}

int
CDTextPreferCB   ( vlc_object_t *p_this, const char *psz_name,
                       vlc_value_t oldval, vlc_value_t val, void *p_data )
{
    cdda_data_t *p_cdda;

    if (NULL == p_cdda_input) return VLC_EGENERIC;

    p_cdda = (cdda_data_t *)p_cdda_input->p_sys;

#ifdef HAVE_LIBCDDB
    if ( p_cdda->i_debug & (INPUT_DBG_CALL|INPUT_DBG_EXT))
    {
        msg_Dbg( p_cdda_input, "old CDText Prefer (x%0x) %d, new (x%0x) %d",
                 p_cdda->b_cdtext_prefer, p_cdda->b_cdtext_prefer,
                 val.b_bool, val.b_bool);
    }
    p_cdda->b_cdtext_prefer = val.b_bool;
#endif
    return VLC_SUCCESS;
}

int
CDDABlocksPerReadCB ( vlc_object_t *p_this, const char *psz_name,
                          vlc_value_t oldval, vlc_value_t val, void *p_data )
{
    cdda_data_t *p_cdda;

    if (NULL == p_cdda_input) return VLC_EGENERIC;

    p_cdda = (cdda_data_t *)p_cdda_input->p_sys;

    if (p_cdda->i_debug & (INPUT_DBG_CALL|INPUT_DBG_EXT))
    {
        msg_Dbg( p_cdda_input, "old blocks per read: %d, new %d",
                 p_cdda->i_blocks_per_read, val.i_int);
    }

    if (0 == val.i_int) val.i_int = DEFAULT_BLOCKS_PER_READ;
    if ( val.i_int >= MIN_BLOCKS_PER_READ && val.i_int <= MAX_BLOCKS_PER_READ )
         p_cdda->i_blocks_per_read = val.i_int;
    else
    {
        msg_Warn( p_cdda_input,
             "number of blocks (%d) has to be between %d and %d. No change.",
              val.i_int, MIN_BLOCKS_PER_READ, MAX_BLOCKS_PER_READ );
    }
    return VLC_SUCCESS;
}