What format is the video?

Question 1: What are the video formats? My collection may be helpful to you-

At present, the popular high-definition audio and video files on the Internet are mainly divided into three categories: DVDRip, RMVB, MKV and so on. With high-definition picture quality and sound effects close to the original sound, many people enjoy high-quality movies through the Internet.

1.DVDRip(DivX)

The so-called DVDRip is an audio-visual playing format formed by using DivX compression technology to compress video images of DVD discs with high quality, using MP3 or AC3 to compress audio, then merging video and audio into an AVI file (AVI (Audio-Video Interlacing)) and finally adding plug-in subtitle files.

Its size is usually several hundred megabytes, which is a fraction of the size of a DVD. Note that when a DVD is converted into DVDRip, some features of DVD such as menu navigation, track selection and segment selection will be lost, but compared with its advantages and convenience of collection and communication, these losses can be ignored.

2.RMVB

This format is an upgrade from RM movie format. VB is VBR, which is the abbreviation of variable bit rate. It breaks the previous method of RM format average compression sampling, and makes rational use of bit rate resources on the basis of ensuring the average compression ratio, so that RMVB can minimize the size of the film at the expense of a small part of the film quality, and finally has a nearly perfect audio-visual effect close to DVD quality.

Compared with DVDRip, the advantages of RMVB are self-evident. First of all, under the premise of ensuring the overall audio-visual effect of the film, the size of RMVB is only about 300 MB ~ 450 MB (calculated by a 90-minute standard film), while DVDRip needs more than 700MB. In addition, it also has the advantages of built-in subtitles, no plug-in support, and low system occupancy when playing, which is the real mainstream format of online movies.

3.MKV

It is considered by many friends to subvert the mainstream media format of DVDRip in the future. It is actually a new multimedia packaging format, also known as multimedia container. It is different from video coding formats such as DivX and XviD, and also from audio coding formats such as MP3 and Ogg. MKV only provides shell "combination" and "encapsulation" formats for these audio and video. In other words, it is a container format, and the common AVl, VOB, MPEG and RM formats actually belong to this type. However, they are either outdated or not open enough, which leads to the birth of new multimedia packaging formats, such as MKV.

The biggest feature of MKV is that it can accommodate many different types of encoded video, audio and subtitle streams, even including very closed streaming media such as RealMedia and QuickTime. It can be said that it is a great subversion of the traditional media format and has almost become a universal media container.

You don't need a special player to play MKV. Any DirectShow-based player can play MKV, such as Classic, BSplayer, ZoomPlayer and even Windows Media player. You just need to install the corresponding Matroska decoder plug-in. It is recommended to download Happy Show (sq). Online down/down/happy show408.zip), a decoder integration software.

Know different versions of this film.

On many download websites, in addition to the format of the film, it will also be marked as TVRip, TS version and so on. What do these mean? You can have a simple understanding of them through the following contents.

1. Cam (gun type)

CAM version is usually pirated from the cinema with a digital camera, which is the so-called "movie version". Because the camera often shakes during bootlegging, and >>

Question 2: What is the general format of video? Common video formats:

1, ASF is the abbreviation of advanced stream format. You should see the usefulness of this format from its literal meaning (advanced stream format). To put it bluntly, ASF is a file compression format developed by Microsoft in order to compete with the current Real player. You can watch video programs directly on the Internet! Because it uses the compression algorithm of MPEG4-4, the compression rate and image quality are very good. Because ASF exists in a video "streaming" format that can be watched instantly on the Internet, it is not surprising that its picture quality is worse than that of VCD, but it is better than that of RAM format which is also a video "streaming" format. However, it is not surprising that if you choose the best quality compressed file regardless of online transmission, the generated video file is better than VCD (MPEG 1), but in this case, the original intention of ASF development will be lost, and it is better to simply use N AVI or DIVX. However, Microsoft's Di Zi has its unique advantages. The most obvious thing is that all kinds of software support it unsurpassed.

2.nAVI is the abbreviation of newAVI, which is a new video format developed by an underground organization called ShadowRealm. It is a modification of Microsoft ASF compression algorithm (not the imagined AVI), and the video format pursues nothing more than compression rate and image quality, so NAVI improves some shortcomings of the original ASF format in order to pursue this goal, so that NAVI can have a higher frame rate. Of course, this is at the expense of the video streaming characteristics of ASF. To sum up, NAVI is an improved ASF format, which removes the characteristics of video stream! Simply put, it is the non-network version of ASF.

3.AVI is the abbreviation of audio and video interleaving. I don't think I need to explain this. This old video format released by Microsoft from WIN3. 1 era has served us for several years. If you don't know anything about it, I don't think you should look down. The advantages of this thing are nothing more than good compatibility, convenient call and good picture quality, but I think the disadvantages are also well known: large size! Because of this, we can now see the birth of MPEG 1 and the introduction of MPEG-4.

4.MPEG (MPEG, MPG, DAT) is the abbreviation of moving picture expert group, including MPEG- 1, MPEG-2, MPEG-4 (note that there is no MPEG-3, and the only familiar MP3 is MPEG Layeur 3). MPEG- 1 is considered to be the most widely used, because it is widely used in the production of VCD and the network application of downloading some video clips. It can be said that 99% of VCDs are compressed in MPEG- 1 format. (Note that VCD2.0 does not mean that VCD is MPEG-2 compressed. Using the compression algorithm of MPEG- 1, a movie with a length of 120 minutes (excluding video files) can be compressed to the size of 1.2 GB or so. MPEG-2 is applied to the production (compression) of DVD, and also has considerable application in some HDTV (High Definition Television Broadcasting) and some demanding video editing processes. Using MPEG-2 compression algorithm to compress a movie (without video files) with a length of 120 minutes can be compressed to a size of 4 to 8 GB (of course, its performance indicators such as image quality are incomparable to MPEG- 1). MPEG-4 is a new compression algorithm. By using the ASF format of this algorithm, a movie (unwatched file) with a length of 120 minutes can be compressed into a video stream of about 300M, which can be watched online. Other DIVX formats can also be compressed to about 200m, but the picture quality is much better than ASF.

5.DIVX video coding technology can be said to be a new video compression format that poses a threat to DVD (some people say DVD......& gt& gt.

Question 3: What are the common video formats? 1, AVI, English abbreviation for audio and video interleaving. AVI is a video format released by Microsoft, and it is one of the oldest formats in the video field. AVI format has become the most widely used format because of its convenient calling, good image quality and optional compression standard.

2.MOV friends who have used MAC should have some contact with QuickTime. QuickTime was originally Apple's image and video processing software for Mac computers. Quick-Time provides two standard image and digital video formats, that is, it can support static *. PIC and *. JPG image format, dynamic *. MOV based on Indeo compression method and *. MPG video format based on MPEG compression method.

3, ASF (Advanced Stream Format). ASF is a file compression format developed by Microsoft to compete with the current Real player, which can watch video programs directly on the Internet. ASF adopts MPEG4-4 compression algorithm, and the compression rate and image quality are very good. Because ASF exists in a video "streaming" format that can be watched instantly on the Internet, it is not surprising that its picture quality is worse than that of VCD, but it is better than that of RAM format which is also a video "streaming" format.

4.WMV is a real-time multimedia transmission technology standard independent of coding mode. Microsoft hopes to use it to replace technical standards such as QuickTime and file extensions such as WAV and AVI. The main advantages of WMV are: extensible media types, local or network playback, extensible media types, streaming priority, multilingual support, scalability and so on.

5. Navid

If you find that the original playback software suddenly can't open the AVI file in this format, then you should consider whether you have met n AVI. N AVI is the abbreviation of the new AVI, which is a new video format developed by an underground organization called Shadow Kingdom. It is a modification of Microsoft ASF compression algorithm (not the imagined AVI), and the video format pursues nothing more than compression rate and image quality, so NAVI improves some shortcomings of the original ASF format in order to pursue this goal, so that NAVI can have a higher frame rate. It can be said that NAVI is an improved ASF format without the characteristics of video streaming.

6.3 gallons

3GP is a video coding format of 3G streaming media, which is mainly developed to match the high transmission speed of 3G network, and it is also the most common video format in mobile phones at present.

Simply put, this format is a multimedia standard formulated by 3rd generation partnership project (3GPP), which allows users to enjoy high-quality multimedia content such as video and audio with their mobile phones. Its core consists of advanced audio coding (AAC), adaptive multi-rate coding (AMR), MPEG-4 and H.263 video codec. At present, most mobile phones that support video shooting support video playback in 3GPP format.

7. Real video

REAL VIDEO (RA, RAM) format is positioned in the application of video streaming from the beginning, and it can also be said that it is the originator of video streaming technology. It can realize uninterrupted video playback under the condition of using 56K modem to dial up the Internet. Of course, compared with MPEG2 and DIVX, its image quality is not satisfactory. After all, it takes a lot of bandwidth to transmit uninterrupted video on the Internet, which is a strong competitor of ASF.

8、MKV

Video files with the suffix MKV often appear on the network. It can integrate multiple different types of audio tracks and subtitle tracks in one file, and the degree of freedom of video coding is also very great, which can be common streaming media videos such as DivX, XviD, 3IVX, and even RealVideo, QuickTime, WMV, etc. In fact, it is a new multimedia packaging format called Matroska, and this advanced and open packaging format has been given to me ... & gt

Question 4: What is the general format of computer video playback? The video player used on the computer can support most formats. Such as AVI, RM(RMVB), WMV, MKV, MPEG 1, MPEG2, MP4, etc.

Computer optical drives can be divided into CD and DVD, and DVD optical drives are backward compatible. CD drives support MPEG 1 format (commonly known as VCD discs), while DVD drives can support MPEG 1 and MEG2 formats.

Question 5: What are the common video file formats (easy to remember)? AVI。 WMA。 RMVB，。 RM，。 Flash,. MP4，。 Medium, 3GP.

The above is relatively common, and AVI is generally larger and the clearest one. RmVB and WMA are moderately clear, RM format is small, and the clarity is slightly poor ... Flash, .mp4, .mid and 3GP are relatively small formats, which are suitable for network playback and mobile media device playback.

Question 6: What are the video file formats? 3gp，3g2，avi，dv，dif，mov，qt，swf，mp2，mp3，ogg，aac，m4a，nut，ac3，h26 1，h264，m4v，yuv，mp4，rm，ra，ram，rmvb，wma，wmv，asf，mpg，mpeg，mpa，vob，dat，ape，cue，mkv，wav，aiff，au，cda，avs，psp，*** k，NSK。

Question 7: What is the suffix of the video file? Firstly, the suffix names and opening methods of several audio and video files are introduced:

Method for open extended file type

. Aiff sound file Windows media player

. Avi movie file Windows media player

. Mov Quicktime fast time

Image file

. Mpeg image Windows media player

. Mpg image Windows media player

. Qt Quicktime fast time

Image file

. Ram real audio real audio

Image file

. Viv VIVO image file browser with VIVO plug-in.

. AVI-AVI file: AVI is the English abbreviation of Audio Video Interleaved, and it is a digital audio and video file format developed by Microsoft in line with RIFF file specification.

. MPEG/。 mpg/。 Dat-MPEG file: MPEG file format is the international standard of moving image compression algorithm. It uses lossy compression to reduce redundant information in moving images, while ensuring the dynamic refresh rate of 30 frames per second. Almost all computer platforms support it. MPEG standard includes three parts: MPEG video, MPEG audio and MPEG system (video and audio synchronization). The MP3 audio file mentioned above is a typical application of MPEG audio, while Video Disc (VCD), Super VCD (SVCD) and DVD (Digital Versatile Disc) are new consumer electronic products produced by MPEG technology.

. ra/。 RM/RA/。 RM/。 RMVB-RealVideo file: RealVideo file is a new streaming video file format developed by RealNetworks, which is included in the audio and video compression standard RealMedia developed by RealNetworks. It is mainly used for real-time transmission of moving video images on low-rate WAN, and can adopt different compression rates according to different network data transmission rates to realize real-time transmission and real-time playback of image data.

. mov/。 Qt-QuickTime file: QuickTime is an audio and video file format developed by Apple Computer Company, which is used to save audio and video information. It has advanced video and audio functions, and is supported by all mainstream computer platforms, including Apple Mac OS and Microsoft Windows 95/98/NT.

. ASF/。 Wmv- Microsoft Streaming Media File: Advanced Streaming Format (ASF) introduced by Microsoft is also the technical standard for real-time multimedia communication on the Internet. Microsoft is ambitious and hopes to replace technical standards such as QuickTime with ASF. The main advantages of ASF include: local or network playback, extensible media types, component download and scalability.

. AVI(have): If you find that the original player suddenly can't open the avi file in this format, then you should consider whether you have met n·AVI. N AVI is the abbreviation of newAVI, which is a new video format developed by an underground organization called ShadowRealm.

ISO, BIN, TAO, DAO, CIF, image file format: the image file is actually an independent file, which is different from other files. & gt

Question 8: What are the most common video formats? Our common video formats are:

1, MPEG- 1, MPEG-2 and MPEG-4.

MPEG- 1 is widely used to make vcds and download some video clips, the most of which is VCD-almost all VCDs are compressed in Mpge- 1 format (the file is *. Dat format). The compression algorithm of MPEG- 1 can compress a movie (original video file) with the length of 120 minutes to the size of 1.2 GB.

MPEG-2 is suitable for DVD production (the file format is *. Vob format), as well as some HDTV high-definition TV broadcasts) and some demanding video editing processing. Using the compression algorithm of MPEG-2, the size of a 120-minute movie (original video file) is about 4GB to 8GB. Of course, its picture quality index is incomparable with MPEG- 1.

MPEG-4 is a new compression algorithm. The ASF format file using this algorithm can make a movie (original video file) with a length of 120 minutes "slim down" to about 300MB. Because it is small and easy to spread, it has become one of the main ways to watch online. In addition, the source file can be compressed to about 600MB by using DivX format, but its image quality is much higher than ASF.

2.AVI format

AVI is a format widely used by TV stations and film and television companies. Its most direct advantages are good compatibility, convenient call and good picture quality, so it is often said to DVD. But its disadvantage is also obvious: large volume. It is precisely because of this that we have seen the birth of MPEG- 1 and MPEG-4. The AVI file size of a 2-hour image is almost the same as that of MPEG-2, but this is only for the standard resolution: the resolution of AVI can be adjusted at will according to different application requirements. The larger the window, the larger the data volume of the file. Reducing the resolution can greatly reduce its size, but the image quality is inevitably damaged. When the file size is similar to MPEG-2 format, the video quality of AVI format is relatively poor, but the requirements for computer configuration are not high. People usually record videos in AVI format first, and then convert them into other formats.

3.RM format

This is the great contribution of Real Company to the multimedia world and the promotion of online movies. Its birth also makes streaming files known to more people. This kind of file can be played immediately. This way of "broadcasting while transmitting" avoids the disadvantage that users have to wait for the whole file to be downloaded from the Internet before they can watch it, so it is especially suitable for watching movies online. RM is mainly used for real-time transmission of compressed video on low-speed networks, and also has the characteristics of small size and clarity. The size of RM file depends entirely on the compression ratio chosen when making it, which is why sometimes we see that the image of 1 hour is only 200MB, while others are 500MB.

4.ASF and WMV formats

Video files with suffix *. Asf and *. Wmv is born for RM and is the core of WindowsMedia. Their * * * feature is that they use MPEG-4 compression algorithm, so the compression rate and image quality are very good (just worse than VCD and better than RM format). Like most video formats, the picture quality is inversely proportional to the file size. In other words, the better the image quality, the larger the file; On the contrary, the smaller the file, the worse the image quality. When making ASF files, it is recommended to adopt a resolution of 320×240 and a frame rate of 30 frames per second, which can give consideration to both clarity and file size. At this time, the 2-hour image is about 1gb.

5.MOV format

Of all the video formats, MOV format is probably the least known. Maybe you have heard of QuickTime, which plays files in MOV format. Today, when PC almost dominates the world, the MOV format transplanted from Apple is naturally excluded. It has the technical characteristics of cross-platform and small storage space requirements. The MOV format file with lossy compression method has a slightly better picture effect than AVI format. So far, it * * * has four ...>& gt.

Question 9: How many formats are there for video? The main video formats are rm, rmvb, mpeg1-4mov MTV dat wmvavi 3gp amv dmv flv.

This format is a big one in the video camp, and it is also the most common video format we usually see. There are many derived formats, including video files with suffixes of mpg, mpe, mpa, m 15, m 1v, mp2, etc. , all from this family. M-power EG format includes three parts: MPEG video, MPEG audio and MPEG system (video and audio synchronization). MP3(MPEG-3) audio file is a typical application of MPEG audio. Video includes MPEG- 1, MPEG-2 and MPEG-4.

Question 10: What is the normal video format of a computer?

The format supported by the computer mainly depends on the player.

There are many formats supported by Storm Video: such as RMVB A, I MP4, 3GPMPG, etc.