Пример #1
0
static int modplug_load_metadata(AVFormatContext *s)
{
    ModPlugContext *modplug = s->priv_data;
    ModPlugFile *f = modplug->f;
    char *extra;
    const char *name = ModPlug_GetName(f);
    const char *msg  = ModPlug_GetMessage(f);

    unsigned n_instruments = ModPlug_NumInstruments(f);
    unsigned n_samples     = ModPlug_NumSamples(f);
    unsigned n_patterns    = ModPlug_NumPatterns(f);
    unsigned n_channels    = ModPlug_NumChannels(f);

    if (name && *name) av_dict_set(&s->metadata, "name",    name, 0);
    if (msg  && *msg)  av_dict_set(&s->metadata, "message", msg,  0);

    extra = av_asprintf("%u pattern%s, %u channel%s",
                        n_patterns, n_patterns > 1 ? "s" : "",
                        n_channels, n_channels > 1 ? "s" : "");
    if (!extra)
        return AVERROR(ENOMEM);
    av_dict_set(&s->metadata, "extra info", extra, AV_DICT_DONT_STRDUP_VAL);

    ADD_META_MULTIPLE_ENTRIES(instrument, ModPlug_InstrumentName);
    ADD_META_MULTIPLE_ENTRIES(sample,     ModPlug_SampleName);

    return 0;
}
Пример #2
0
Файл: mod.c Проект: mstorsjo/vlc
/*****************************************************************************
 * Control:
 *****************************************************************************/
static int Control( demux_t *p_demux, int i_query, va_list args )
{
    demux_sys_t *p_sys = p_demux->p_sys;
    double f, *pf;
    vlc_tick_t i64;
    vlc_tick_t *pi64;

    switch( i_query )
    {
    case DEMUX_CAN_SEEK:
        *va_arg( args, bool * ) = true;
        return VLC_SUCCESS;

    case DEMUX_GET_POSITION:
        pf = va_arg( args, double* );
        if( p_sys->i_length > 0 )
        {
            double current = date_Get( &p_sys->pts ) - VLC_TICK_0;
            double length = p_sys->i_length;
            *pf = current / length;
            return VLC_SUCCESS;
        }
        return VLC_EGENERIC;

    case DEMUX_SET_POSITION:
        f = va_arg( args, double );

        i64 = f * p_sys->i_length;
        if( i64 >= 0 && i64 <= p_sys->i_length )
        {
            ModPlug_Seek( p_sys->f, MS_FROM_VLC_TICK(i64) );
            date_Set( &p_sys->pts, VLC_TICK_0 + i64 );

            return VLC_SUCCESS;
        }
        return VLC_EGENERIC;

    case DEMUX_GET_TIME:
        *va_arg( args, vlc_tick_t * ) = date_Get( &p_sys->pts );
        return VLC_SUCCESS;

    case DEMUX_GET_LENGTH:
        pi64 = va_arg( args, vlc_tick_t * );
        *pi64 = p_sys->i_length;
        return VLC_SUCCESS;

    case DEMUX_SET_TIME:
        i64 = va_arg( args, vlc_tick_t );

        if( likely(i64 >= 0) && i64 <= p_sys->i_length )
        {
            ModPlug_Seek( p_sys->f, MS_FROM_VLC_TICK( i64 ) );
            date_Set( &p_sys->pts, VLC_TICK_0 + i64 );

            return VLC_SUCCESS;
        }
        return VLC_EGENERIC;

    case DEMUX_HAS_UNSUPPORTED_META:
    {
        bool *pb_bool = va_arg( args, bool* );
        *pb_bool = false; /* FIXME I am not sure of this one */
        return VLC_SUCCESS;
    }
    case DEMUX_GET_META:
    {
        vlc_meta_t *p_meta = va_arg( args, vlc_meta_t * );
        unsigned i_num_samples = ModPlug_NumSamples( p_sys->f ),
                 i_num_instruments = ModPlug_NumInstruments( p_sys->f );
        unsigned i_num_patterns = ModPlug_NumPatterns( p_sys->f ),
                 i_num_channels = ModPlug_NumChannels( p_sys->f );
        //      unsigned modType = ModPlug_GetModuleType( p_sys->f );

        char psz_temp[2048]; /* 32 * 240 max, but only need start  */
        char *psz_module_info, *psz_instrument_info;
        unsigned i_temp_index = 0;
        const char *psz_name = ModPlug_GetName( p_sys->f );
        if( psz_name && *psz_name && IsUTF8( psz_name ) )
            vlc_meta_SetTitle( p_meta, psz_name );

        /* Comment field from artist - not in every type of MOD */
        psz_name = ModPlug_GetMessage( p_sys->f );
        if( psz_name && *psz_name && IsUTF8( psz_name ) )
            vlc_meta_SetDescription( p_meta, psz_name );

        /* Instruments only in newer MODs - so don't show if 0 */
        if( asprintf( &psz_instrument_info, ", %i Instruments",
                      i_num_instruments ) >= 0 )
        {
            if( asprintf( &psz_module_info,
                          "%i Channels, %i Patterns\n"
                          "%i Samples%s\n",
                          i_num_channels, i_num_patterns, i_num_samples,
                          ( i_num_instruments ? psz_instrument_info : "" ) ) >= 0 )
            {
                vlc_meta_AddExtra( p_meta, "Module Information",
                                   psz_module_info );
                free( psz_module_info );
            }

            free( psz_instrument_info );
        }

        /* Make list of instruments (XM, IT, etc) */
        if( i_num_instruments )
        {
            i_temp_index = 0;
            for( unsigned i = 0; i < i_num_instruments && i_temp_index < sizeof(psz_temp); i++ )
            {
                char lBuffer[33];
                ModPlug_InstrumentName( p_sys->f, i, lBuffer );
                if ( !lBuffer[0] || !IsUTF8( lBuffer ) ) continue;
                i_temp_index += snprintf( &psz_temp[i_temp_index], sizeof(psz_temp) - i_temp_index, "%s\n", lBuffer );
            }

            vlc_meta_AddExtra( p_meta, "Instruments", psz_temp );
        }

        /* Make list of samples */
        for( unsigned int i = 0; i < i_num_samples && i_temp_index < sizeof(psz_temp); i++ )
        {
            char psz_buffer[33];
            ModPlug_SampleName( p_sys->f, i, psz_buffer );
            if ( !psz_buffer[0] || !IsUTF8( psz_buffer ) ) continue;
            i_temp_index += snprintf( &psz_temp[i_temp_index], sizeof(psz_temp) - i_temp_index, "%s\n", psz_buffer );
        }

        vlc_meta_AddExtra( p_meta, "Samples", psz_temp );

        return VLC_SUCCESS;
    }

    case DEMUX_GET_FPS: /* meaningless */
        return VLC_EGENERIC;

    case DEMUX_CAN_PAUSE:
    case DEMUX_CAN_CONTROL_PACE:
    case DEMUX_GET_PTS_DELAY:
    case DEMUX_SET_PAUSE_STATE:
        return demux_vaControlHelper( p_demux->s, 0, -1, 0, 1, i_query, args );

    default:
        return VLC_EGENERIC;

    }
}
Пример #3
0
unsigned int sfMod::Mod::GetSampleCount() const
{
  return ModPlug_NumSamples(file_);
}