mrec

media subsystem. Use Android. Media. mediarecorderClass for media sampling, including audio and video. MediarecorderRun as a state machine. You need to set different parameters, such as the source device and format. After setting, you can execute recording for any duration until the user stops.The main audio recordings are as follows:Mediarecorder mrec;File audiofile = NULL;Private Static final string tag = "soundrecordingdemo ";Protected void startr

user stops. The code in Listing 2 records audio on an Android device. The displayed Code does not include the UI elements of the application (for the complete source code, see download ). List 2. recording audio clips Mediarecorder mrec;File audiofile = NULL;Private Static final string tag = "soundrecordingdemo ";Protected void startrecording () throws ioexception{Mrec. setaudiosource (mediarecorder. audio

-point method (Default:false). "" "If Use_07_metric: # one point metric AP = 0. For T in Np.arange (0., 1.1, 0.1): If Np.sum (rec >= t) = = 0:p = 0 Else: p = Np.max (Prec[rec >= t]) AP = ap + P/11. else: # correct AP calculation # first Append sentinel values at the end mrec = Np.concatenate ([0 .], REC, [1.]) Mpre = Np.concatenate ([0.], prec, [0.])) # Compute the precision envelope for I in range (mpre.s

~ SGA_MAX_SIZE*2/3Use advice to confirm the size of the buffer cache Select Size_for_estimate "Cache size (MB)", size_factor,buffers_for_estimate "buffers",Estd_physical_read_factor Est_read_factor,Estd_physical_reads Estd_phy_red,estd_physical_read_time est_phy_red_tFrom V$db_cache_advicewhere Name= ' DEFAULT ' and block_size= (SELECT VALUE from V$parameter WHERE name= ' db_block_size '); 6. Block statusX$bhState 0, free, no valid block image1, xcur, a current mode block, exclusive to this inst

dialog box is 1. In fact, the use of pointers is quite complex, and the following code is also correct:VarA:integer;Pa:pinteger;BeginA: = 1;PA: = @A;pa^: = 2;ShowMessage (IntToStr (A));EndIn a program, programmers can also define pointer data types for their own defined normal or complex data types, depending on the actual needs, and here's the sample code that defines the pointer data type:TypePmyrec = ^tmyrec;Tmyrec = RecordP1:integer;P2:integer;name:string;EndAs you can see, this defines a s

A further step, for everyone to test, if manually the buffer header buffer pin memory bit set to 1, which is equivalent to adding a shared buffer pin lock, then another session, update this block, what will happen? 1, take T1 table of the first row of data to do testing:Sql> Select Rowid,dbms_rowid.rowid_relative_fno (ROWID) file#,dbms_rowid.rowid_block_number (ROWID) Block#,id, Name from Gyj.t1 where Rownum=1; ROWID file# block# ID NAME------------------ ---------- ---------- ---------- ----

In fact, we may have been v$bh this view is not enough. Let's take a look at this view primary field description: STATUS VARCHAR2 (1) Status of the buffer: Free-not currently in the xcur-exclusive scur-shared current cr-consistent read read-being read from disk Mrec- In media recovery mode irec-in instance recovery mode? DIRTY VARCHAR2 (1) Y-block modified TEMP VARCHAR2 (1) Y-temporary Block Ping VARCHAR2 (1) Y-block pinged Stale VARC

to this instance is being monopolized by the present instance. 2, Scur, a current mode blocks, shared with the other instances is being instance share 3, CR, a consistent read (stale) block image consistent read 4, read, buffer is reserved for a blocks being read from disk reading chunks from disks 5, MREC, block A, media recovery mode is in the medium recovery model 6, Irec, a block in instance (crash) recovery mode is in the instance recovery mode

spent about 1 days sorting out the open source Recommender system in various languages, with a more complete and comprehensive target of red. One, Python library 1, benfred/implicit Fast Python Collaborative filtering for implicit datasets https://github.com/benfred/ Implicit 2, Mendeley/mrec A recommender Systems Development and evaluation package by Mendeley /mrec 3, LYST/LIGHTFM a Python implementatio

block, 11 = bitmap block, 4 = segment header, 12 = bitmap index block, 5 = save undo header, 13 = unused, 6 = free list, 14 = undo header, 7 = extent map, 15 = undo block State: 0, FREE, no valid block image 1, XCUR, a current mode block, exclusive to this instance is being exclusive by the current instance. 2, SCUR, a current mode block, shared with other instances is being shared by the current instance 3, CR, a consistent read (stale) block image consistent read 4. READ, buffer is reserved

; - + PrivateBoolean MREC =false ; - + Public voidOpencamera (intU ninth) { A atMRec =false ; - - if(Surfaceholder = =NULL ) - return ; -Mcamera =Android.hardware.Camera.open (); - Try { in Mcamera.setpreviewdisplay (surfaceholder); -}Catch(IOException e) { toLOG.E (TAG,"Mcamera.setpreviewdisplay ("+ Surfaceholder +") Fail" ) ; + return ; - } the *Android.hardware.Camera.Parameters p =mcamera.getparameters (); $ Panax Notogins

(state,0, ' free ', 1, ' Xcur ', 2, ' Scur ', 3, ' Cr ', 4, ' read ', 5, ' Mrec ', 6, ' Irec ', 7, ' write ', 8, ' pi ' ) State,count (*) blocksfrom x$bh B, dba_objects owhere b.obj = O.data_object_idand o.object_name = ' T2 ' GROUP by O.object_n Ame, stateorder by blocks DescNote: The experiment can be performed firstalter system flush Buffer_cache;7. Use various SQL to understand buffer cache usageSelect distinct object_name, Dbarfil, dbablk from X

where id = 1; SQL> selectid, name, dbms_rowid.rowid_relative_fno (rowid) file #, dbms_rowid.rowid_block_number (rowid) block # from gyj1_t80 where id = 1; Id name file # BLOCK # -------------------------------------------------- 1 gyj1 5 581 Select LRU_FLAG, lower (BA), TCHfrom x $ bh where file # = 5 and dbablk = 581; SQL> select LRU_FLAG, lower (BA), TCH, decode (state, 0, 'free', 1, 'xcur', 2, 'scur' 2, 3, 'cr ', 4, 'read', 5, 'mrec', 6,

(r.id.time); Msurfaceview = (Surfaceview) Findviewbyid (r.id.surfaceview); mbtnstartstop = (Button) Findviewbyid (R.ID.BTN); Mbtnstartstop.setonclicklistener ( New View.onclicklistener () {@Overridepublic void OnClick (View v) {//TODO auto-generated method Stubif (!mSTARTEDFLG) {//start if (Mrecorder = = null) {Mrecorder = new Mediarecorder ();//Create Mediarecorder object}try {camera.unlock (); MRec Order.setcamera (camera); Mrecorder.setaudiosource

Handlemessage (Message msg) {switch (msg.what) {case Message_updateview:updateview ((String) msg.obj); ;d efault:break;};}; private void Updateview (String data) {Mshowtextview.settext ("from the second page:" + Data + "" + System.currenttimemillis ());} Class Pagetwodatachangedreceiver extends Broadcastreceiver {@Override public void onreceive (context context , Intent Intent) {if (Intent.getaction (). Equals (pageonefragment.data_changed)) {String label = "Both time:";

; select id,name,dbms_rowid.rowid_relative_fno(rowid) file#,dbms_rowid.rowid_block_number(rowid) block# from gyj1_t80 where id=1; ID NAME FILE# BLOCK#---------- -------------------- ---------- ---------- 1 gyj1 5 581select LRU_FLAG,lower(BA),TCH from x$bh where file#=5 and dbablk=581;SQL> select LRU_FLAG,lower(BA),TCH, decode(state,0,‘free‘,1,‘xcur‘,2,‘scur‘ 2 ,3,‘cr‘, 4,‘read‘,5,‘mre