rpn.c

uclinux 下的vlc播放器源代码

        else if( !strcmp( s, "vlc_object_exists" ) )
        {
            char *psz_object = E_(SSPop)( st );
            vlc_bool_t b_need_release;

            vlc_object_t *p_object = GetVLCObject( p_intf, psz_object,
                                                   &b_need_release );
            if( b_need_release && p_object != NULL )
                vlc_object_release( p_object );

            if( p_object != NULL )
                E_(SSPush)( st, "1" );
            else
                E_(SSPush)( st, "0" );
        }
        else if( !strcmp( s, "vlc_config_set" ) )
        {
            char *psz_variable = E_(SSPop)( st );
            int i_type = config_GetType( p_intf, psz_variable );

            switch( i_type & VLC_VAR_TYPE )
            {
            case VLC_VAR_BOOL:
            case VLC_VAR_INTEGER:
                config_PutInt( p_intf, psz_variable, E_(SSPopN)( st, vars ) );
                break;
            case VLC_VAR_STRING:
            case VLC_VAR_MODULE:
            case VLC_VAR_FILE:
            case VLC_VAR_DIRECTORY:
            {
                char *psz_string = E_(SSPop)( st );
                config_PutPsz( p_intf, psz_variable, psz_string );
                free( psz_string );
                break;
            }
            case VLC_VAR_FLOAT:
            {
                char *psz_string = E_(SSPop)( st );
                config_PutFloat( p_intf, psz_variable, atof(psz_string) );
                free( psz_string );
                break;
            }
            default:
                msg_Warn( p_intf, "vlc_config_set called on unknown var (%s)",
                          psz_variable );
            }
            free( psz_variable );
        }
        else if( !strcmp( s, "vlc_config_get" ) )
        {
            char *psz_variable = E_(SSPop)( st );
            int i_type = config_GetType( p_intf, psz_variable );

            switch( i_type & VLC_VAR_TYPE )
            {
            case VLC_VAR_BOOL:
            case VLC_VAR_INTEGER:
                E_(SSPushN)( st, config_GetInt( p_intf, psz_variable ) );
                break;
            case VLC_VAR_STRING:
            case VLC_VAR_MODULE:
            case VLC_VAR_FILE:
            case VLC_VAR_DIRECTORY:
            {
                char *psz_string = config_GetPsz( p_intf, psz_variable );
                E_(SSPush)( st, psz_string );
                free( psz_string );
                break;
            }
            case VLC_VAR_FLOAT:
            {
                char psz_string[20];
                lldiv_t value = lldiv( config_GetFloat( p_intf, psz_variable )
                                       * 1000000, 1000000 );
                snprintf( psz_string, sizeof(psz_string), I64Fd".%06u",
                          value.quot, (unsigned int)value.rem );
                E_(SSPush)( st, psz_string );
                break;
            }
            default:
                msg_Warn( p_intf, "vlc_config_get called on unknown var (%s)",
                          psz_variable );
            }
            free( psz_variable );
        }
        else if( !strcmp( s, "vlc_config_save" ) )
        {
            char *psz_module = E_(SSPop)( st );
            int i_result;

            if( !*psz_module )
            {
                free( psz_module );
                psz_module = NULL;
            }
            i_result = config_SaveConfigFile( p_intf, psz_module );

            if( psz_module != NULL )
                free( psz_module );
            E_(SSPushN)( st, i_result );
        }
        else if( !strcmp( s, "vlc_config_reset" ) )
        {
            config_ResetAll( p_intf );
        }
        /* 6. playlist functions */
        else if( !strcmp( s, "playlist_add" ) )
        {
            char *psz_name = E_(SSPop)( st );
            char *mrl = E_(SSPop)( st );
            char *tmp;
            playlist_item_t *p_item;
            int i_id;

            tmp = E_(ToUTF8)( p_intf, psz_name );
            free( psz_name );
            psz_name = tmp;
            tmp = E_(ToUTF8)( p_intf, mrl );
            free( mrl );
            mrl = tmp;

            if( !*psz_name )
            {
                p_item = E_(MRLParse)( p_intf, mrl, mrl );
            }
            else
            {
                p_item = E_(MRLParse)( p_intf, mrl, psz_name );
            }

            if( p_item == NULL || p_item->input.psz_uri == NULL ||
                 !*p_item->input.psz_uri )
            {
                i_id = VLC_EGENERIC;
                msg_Dbg( p_intf, "invalid requested mrl: %s", mrl );
            }
            else
            {
                i_id = playlist_AddItem( p_sys->p_playlist, p_item,
                                         PLAYLIST_APPEND, PLAYLIST_END );
                msg_Dbg( p_intf, "requested mrl add: %s", mrl );
            }
            E_(SSPushN)( st, i_id );

            free( mrl );
            free( psz_name );
        }
        else if( !strcmp( s, "playlist_empty" ) )
        {
            playlist_LockClear( p_sys->p_playlist );
            msg_Dbg( p_intf, "requested playlist empty" );
        }
        else if( !strcmp( s, "playlist_delete" ) )
        {
            int i_id = E_(SSPopN)( st, vars );
            playlist_LockDelete( p_sys->p_playlist, i_id );
            msg_Dbg( p_intf, "requested playlist delete: %d", i_id );
        }
        else if( !strcmp( s, "playlist_move" ) )
        {
            int i_newpos = E_(SSPopN)( st, vars );
            int i_pos = E_(SSPopN)( st, vars );
            if ( i_pos < i_newpos )
            {
                playlist_Move( p_sys->p_playlist, i_pos, i_newpos + 1 );
            }
            else
            {
                playlist_Move( p_sys->p_playlist, i_pos, i_newpos );
            }
            msg_Dbg( p_intf, "requested to move playlist item %d to %d",
                     i_pos, i_newpos);
        }
        else if( !strcmp( s, "playlist_sort" ) )
        {
            int i_order = E_(SSPopN)( st, vars );
            int i_sort = E_(SSPopN)( st, vars );
            i_order = i_order % 2;
            i_sort = i_sort % 9;
            playlist_RecursiveNodeSort(  p_sys->p_playlist,
                                         p_sys->p_playlist->p_general,
                                         i_sort, i_order );
            msg_Dbg( p_intf, "requested sort playlist by : %d in order : %d",
                     i_sort, i_order );
        }
        else if( !strcmp( s, "services_discovery_add" ) )
        {
            char *psz_sd = E_(SSPop)( st );
            playlist_ServicesDiscoveryAdd( p_sys->p_playlist, psz_sd );
            free( psz_sd );
        }
        else if( !strcmp( s, "services_discovery_remove" ) )
        {
            char *psz_sd = E_(SSPop)( st );
            playlist_ServicesDiscoveryRemove( p_sys->p_playlist, psz_sd );
            free( psz_sd );
        }
        else if( !strcmp( s, "services_discovery_is_loaded" ) )
        {
            char *psz_sd = E_(SSPop)( st );
            E_(SSPushN)( st,
            playlist_IsServicesDiscoveryLoaded( p_sys->p_playlist, psz_sd ) );
            free( psz_sd );
        }
        else if( !strcmp( s, "vlc_volume_set" ) )
        {
            char *psz_vol = E_(SSPop)( st );
            int i_value;
            audio_volume_t i_volume;
            aout_VolumeGet( p_intf, &i_volume );
            if( psz_vol[0] == '+' )
            {
                i_value = atoi( psz_vol );
                if( (i_volume + i_value) > AOUT_VOLUME_MAX )
                    aout_VolumeSet( p_intf, AOUT_VOLUME_MAX );
                else
                    aout_VolumeSet( p_intf, i_volume + i_value );
            }
            else if( psz_vol[0] == '-' )
            {
                i_value = atoi( psz_vol );
                if( (i_volume + i_value) < AOUT_VOLUME_MIN )
                    aout_VolumeSet( p_intf, AOUT_VOLUME_MIN );
                else
                    aout_VolumeSet( p_intf, i_volume + i_value );
            }
            else if( strstr( psz_vol, "%") != NULL )
            {
                i_value = atoi( psz_vol );
                if( i_value < 0 ) i_value = 0;
                if( i_value > 400 ) i_value = 400;
                aout_VolumeSet( p_intf, (i_value * (AOUT_VOLUME_MAX - AOUT_VOLUME_MIN))/400+AOUT_VOLUME_MIN);
            }
            else
            {
                i_value = atoi( psz_vol );
                if( i_value > AOUT_VOLUME_MAX ) i_value = AOUT_VOLUME_MAX;
                if( i_value < AOUT_VOLUME_MIN ) i_value = AOUT_VOLUME_MIN;
                aout_VolumeSet( p_intf, i_value );
            }
            aout_VolumeGet( p_intf, &i_volume );
            free( psz_vol );
        }
        else if( !strcmp( s, "vlc_get_meta" ) )
        {
            char *psz_meta = E_(SSPop)( st );
            char *psz_val = NULL;
            if( p_sys->p_input && p_sys->p_input->input.p_item )
            {
#define p_item  p_sys->p_input->input.p_item
                if( !strcmp( psz_meta, "ARTIST" ) )
                {
                    psz_val = vlc_input_item_GetInfo( p_item,
                                _(VLC_META_INFO_CAT), _(VLC_META_ARTIST) );
                }
                else if( !strcmp( psz_meta, "TITLE" ) )
                {
                    psz_val = vlc_input_item_GetInfo( p_item,
                                _(VLC_META_INFO_CAT), _(VLC_META_TITLE) );
                    if( psz_val == NULL )
                        psz_val == strdup( p_item->psz_name );
                }
                else if( !strcmp( psz_meta, "ALBUM" ) )
                {
                    psz_val = vlc_input_item_GetInfo( p_item,
                                _(VLC_META_INFO_CAT), _(VLC_META_COLLECTION) );
                }
                else if( !strcmp( psz_meta, "GENRE" ) )
                {
                    psz_val = vlc_input_item_GetInfo( p_item,
                                _(VLC_META_INFO_CAT), _(VLC_META_GENRE) );
                }
                else
                {
                    psz_val = vlc_input_item_GetInfo( p_item,
                                            _(VLC_META_INFO_CAT), psz_meta );
                }
#undef p_item
            }
            if( psz_val == NULL ) psz_val = strdup( "" );
            E_(SSPush)( st, psz_val );
            free( psz_meta );
            free( psz_val );
        }
        else if( !strcmp( s, "vlm_command" ) || !strcmp( s, "vlm_cmd" ) )
        {
            char *psz_elt;
            char *psz_cmd = strdup( "" );
            char *psz_error;
            vlm_message_t *vlm_answer;

            /* make sure that we have a vlm object */
            if( p_intf->p_sys->p_vlm == NULL )
                p_intf->p_sys->p_vlm = vlm_New( p_intf );


            /* vlm command uses the ';' delimiter
             * (else we can't know when to stop) */
            while( strcmp( psz_elt = E_(SSPop)( st ), "" )
                   && strcmp( psz_elt, ";" ) )
            {
                char *psz_buf =
                    (char *)malloc( strlen( psz_cmd ) + strlen( psz_elt ) + 2 );
                sprintf( psz_buf, "%s %s", psz_cmd, psz_elt );
                free( psz_cmd );
                free( psz_elt );
                psz_cmd = psz_buf;
            }

            msg_Dbg( p_intf, "executing vlm command: %s", psz_cmd );
            vlm_ExecuteCommand( p_intf->p_sys->p_vlm, psz_cmd, &vlm_answer );

            if( vlm_answer->psz_value == NULL )
            {
                psz_error = strdup( "" );
            }
            else
            {
                psz_error = malloc( strlen(vlm_answer->psz_name) +
                                    strlen(vlm_answer->psz_value) +
                                    strlen( " : ") + 1 );
                sprintf( psz_error , "%s : %s" , vlm_answer->psz_name,
                                                 vlm_answer->psz_value );
            }

            E_(mvar_AppendNewVar)( vars, "vlm_error", psz_error );
            /* this is kind of a duplicate but we need to have the message
             * without the command name for the "export" command */
            E_(mvar_AppendNewVar)( vars, "vlm_value", vlm_answer->psz_value );
            vlm_MessageDelete( vlm_answer );

            free( psz_cmd );
            free( psz_error );
        }
        else if( !strcmp( s, "snapshot" ) )
        {
            if( p_sys->p_input )
            {
                vout_thread_t *p_vout;
                p_vout = vlc_object_find( p_sys->p_input,
                                          VLC_OBJECT_VOUT, FIND_CHILD );

                if( p_vout )
                {
                    vout_Control( p_vout, VOUT_SNAPSHOT );
                    vlc_object_release( p_vout );
                    msg_Dbg( p_intf, "requested snapshot" );
                }
            }
            break;

        }
        else
        {
            E_(SSPush)( st, s );
        }
    }
}