, lbx: Microsoft FoxPro Tag file
LDB: Microsoft Access lock file
Lha: Change the file suffix with lzh
Log: Log File
Lzh: LH arc compressed file
M
M1v: MPEG-related files (MIME "MPEG" type)
M3D: Corel motion 3D animation File
M3U: mpeg url (MIME sound file)
Mam: Microsoft Access macro
Maq: Microsoft Access
Mar: Microsoft Access Report File
Mbx: Microsoft Outlook saves the email format; Eudora mailbox
MCW: Microsoft Word Macintosh document
MDB: Microsoft Access database
MDN: Microsoft Access empty
these points are xmin or xmax, so we can remove the points on the boundary. However, there is a problem here:
When we divide the data according to a certain step, the entire score may not be fixed, that is, the following situation occurs:
We found that the top and right sides are not just equal. The top and right sides of the line are out of the "range". Although this does not affect the extraction of the intersection points of the river, it is not so nice.
Next, let's take a look at the code
The mencoder command line looks a little scary, so FFmpeg is used. In fact, most of the so-called conversion software is based on FFMPEG, and mencoder also uses FFMPEG. FFmpeg is used for mplayer organizations. So why can't many software convert some files and CODEC? This is because FFmpeg is not supported. For example, wmvv3 (wmv9) encoding and FFMPEG are not supported now. Therefore, basically all the conversion software that can be seen now is not supported. Only wmvv1 (wmv7) and wmvv2 (wmv8)
The previous section has been in the renovation and new project getting started, so I have no spare time to summarize and reflect on it. Long has the feeling of a monkey breaking corn. Let's briefly summarize the previous things from today.
Today, an outline is provided for the time being and will be added one by one:
1. Basic streaming media knowledge ----
RTSP
RTP
RTCP
2. Open-source codec framework ---- FFMPEG
3. video codec:
MPEG4
DIVX
H264
4. audio codec:
AAC
AMR
Bkjia.com Comprehensive Report]PowerSmart has launched a multimedia real-time collection device P20 for multimedia live broadcast and recording requirements such as conferences, teaching, and on-site presentations. P20 is a collection, recording, and publishing device with the following features:
· Supports real-time recording, storage, and publishing of multimedia content
The device supports Synchronous Recording of multiple AV video signals, computer screen VGA signals, and other signals. Di
to the server in most formats such as audio, video, etc.Video files:. asf;. Avi;. DivX,. DV;. flv;. GXF;. M1V;. M2V;. M2ts;. M4V;. mkv;. mov;. mp4;. MPEG;. MPEG1;. MPEG2;. MPEG4;. mpg. mts;. MXF;. TS;. VOB;. wmv;. M4A;. M4P;. MoD WEBM;RAW;RM;RMVB;Audio files:. mp1;. MP2;. mp3;. WAV;. A52;. AAC;. AC3;. DTs. FLAC;. Ogg;. OGM;. MkaTo avoid deviations, force the filename, play with MP4 and MP3, let VLC to identify itself, such as 1234.avi.mp4,123.wav.mp3
Libmp3lame introduced, so, Ubuntu official repository ffmpeg is not encode MP3 (only encode MP2-MPEG 1 Audio Layer 2). Compiling the ffmpeg is simple, configure, make, and sudo make install is OK. Mainly configure, see what support to open, this time I do is:./configure--prefix=/usr--ENABLE-GPL--enable-postproc--enable-nonfree--enable-pthreads--enable-x11grab-- ENABLE-LIBAMR-NB--enable-libamr-wb--ENABLE-LIBFAAC--enable-libfaad--enable-libmp3lame--ena
, Bluetooth, VGA interface.Cubietruck features are as follows:1. ProcessorAllwinner A20, dual core ARM Cortex-a7,arm Mali400 MP2 complies support OpenGL ES 2.0/1.12. Onboard resources2GB [email protected]8GB NAND Flash with expandable support up to 32GB SD card10m/100m/1000m Nic rtl8211eWIFI+BT Wireless Card bcm AP6210, onboard antennas[email protected] power, built-in Li-battery and RTCHDMI+VGA Video Output interfaceSATA 2.0 Interface• USB Host X2,OT
, (); k = j + 2; add closing parenthesis while (!isoperator (equation[k + 1]) k! = Equation.size ()-1) k++;equatio N.insert (k + 1,)); break;}} Coutequationendl;} else {decimal operation char lastop = ' + '; the previous operator int num = random (3) + 4; The calculation contains the number of operands -1 int temp1 = random (+) + 1;sprintf (temp,%g, tem P1 10.0); The first operand equation.append (temp); while (num--) {int b;if (lastop = =) prevents the occurrence of continuous Division B = Ran
API (U.S. petroleum industry) GAUSSIAN.03W gaussian.03.vb.02 (the most widely used quantum chemical software for semi-empirical and ab initio calculations, predicts energy, molecular structure, frequency, etc.), and can be QCISD with HF (HF), DFT (two-dimensional Fourier transform), MP2, CI, CCD, charge-coupled devices), PCM (Pulse code Regulator System) I-PCM and other output corresponding signal) hsym_v2.048 is designed for heating ventilation
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