Not necessarily need to convert
The files that can be played on various types of MP4 are different, and some formats can't be played directly on MP4, which need to be converted. Currently, the video formats played by MP4 mainly include: AVI, ASF, WMV, MPEG, AVM and so on. There is no need to convert for the ones that can be supported. Only when the video format in your mp4 supported video format range outside the need for video conversion, can be converted to any one of your mp4 supported formats.
Two, MP4 video format introduction
To realize the mutual conversion of video formats, we should first understand in detail the name of some of the video formats we often encounter as well as its specific connotation. As the saying goes, "If you know yourself and know your enemy, you will be able to fight a hundred battles without danger." Only by familiarizing ourselves with various video formats can we lay a good foundation for the conversion of video formats later on. Here is a detailed introduction to some common video formats:
1. AVI Format
It is known as Audio Video Interleaved (AVI), which is an audio-video interleaved format. It was introduced by Microsoft in 1992, and was recognized and known with Windows 3.1. The so-called "Audio Video Interleaved" means that video and audio can be interleaved together for synchronized playback. The advantage of this video format is that the image quality is good, and can be used across multiple platforms, but its disadvantage is that the size is too large, and even worse, the compression standard is not uniform, so often encountered a high version of Windows Media Player can not play the use of early encoding editing of AVI format video, and a low version of Windows Media Player can not play the use of the latest encoding editing of AVI format video. AVI format video. In fact, the solution is very simple, we will give the solution in the video conversion and video repair section later.
2. DV-AVI format
DV's full name is Digital Video Format, which is a home digital video format jointly proposed by Sony, Panasonic, JVC and other manufacturers. The current very popular digital camcorders use this format to record video data. It can transfer video data to the computer through the computer's IEEE 1394 port, and it can also record the edited video data from the computer back to the digital camcorder. The file extension of this video format is also usually .avi, so we customarily call it DV-AVI format.
3. MPEG format
It is known as Moving Picture Expert Group, that is, Moving Picture Expert Group format, often seen at home VCD, SVCD, DVD is this format. MPEG file format is the international standard for motion picture compression algorithms, which uses lossy compression to reduce redundant information in the motion picture. MPEG's compression method is more in-depth, that is, to retain the majority of the same parts of the two neighboring images, and the subsequent image and the previous image redundant part of the removal, so as to achieve the purpose of compression. Currently, there are three compression standards in the MPEG format, namely MPEG-1, MPEG-2, and MPEG-4, in addition, MPEG-7 and MPEG-21 are still in the research and development stage.
MPEG-1: Developed in 1992, MPEG-1 is an international standard designed to encode motion pictures and their accompanying audio for digital storage media at data rates up to 1.5Mbps. It is also the format we usually see for VCD production. The file extensions of this video format include .mpg, .mlv, .mpe, .mpeg and .dat files in VCD disks.
MPEG-2: Developed in 1994, MPEG-2 was designed to target advanced industry-standard image quality as well as higher transfer rates. This format is mainly used in DVD/SVCD production (compression), but also in some HDTV (high-definition television broadcasting) and some high-demand video editing, processing above also has considerable applications. The file extensions of this video format include .mpg, .mpe, .mpeg, .m2v, and .vob files on DVD disks.
MPEG-4: Developed in 1998, MPEG-4 is specially designed to play high-quality video for streaming media, which can utilize a very narrow bandwidth, through frame reconstruction techniques, compression and transmission of data, in order to use the least amount of data to obtain the best image quality. video files that are close to DVD quality. File extensions for this video format include .asf, .mov, and DivX, AVI, and so on.
Tip: Careful users must have noticed that there is no MPEG-3 encoding in the center. In fact, we are all familiar with the MP3 is the use of MPEG-3 encoding.
4. DivX Format
This is another video coding (compression) standard derived from MPEG-4, which is what we usually call DVDrip format, which uses MPEG4 compression algorithms while integrating MPEG-4 and MP3 technologies, which is the use of DivX compression technology to compress the video images of DVD disks. To put it bluntly, it uses DivX compression technology to compress the video image of DVD disk with high quality, and at the same time, it uses MP3 or AC3 to compress the audio, and then synthesizes the video and the audio and adds the corresponding external subtitle file to form the video format. The image quality is comparable to that of a DVD and is only a fraction of the size of a DVD.
5. MOV format
Apple developed a video format, the default player is Apple's QuickTimePlayer, with a high compression ratio and perfect video clarity and other characteristics, but its biggest feature is still cross-platform, that is, not only can support MacOS, but also supports Windows, Windows, Windows Vista, Windows Vista, Windows Vista, Windows Vista, Windows Vista, Windows Vista, Windows Vista, Windows Vista, Windows Vista, Windows Vista, Windows Vista, Windows Vista, Windows Vista, Windows Vista, Windows Vista and Windows Vista.
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6. ASF format
It's full name is Advanced Streaming format, which is a video format introduced by Microsoft to compete with the current Real Player, and users can directly use Windows Media Player that comes with Windows to play it. Because it uses the MPEG-4 compression algorithm, the compression rate and image quality are very good.
7. WMF Format
It is known as Windows Media Video, and it is also a file compression format introduced by Microsoft that uses independent encoding and allows you to watch video programs in real time directly on the Internet.
7. The main advantages of the WMV format include: local or network playback, scalable media types, scalable media types, multi-language support, environment independence, rich streaming, and the ability to play back video programs. support, environment independence, rich inter-stream relationships, and extensibility.
8. RM Format
The audio/video compression specification developed by Networks is called Real Media, which allows users to use RealPlayer or RealOne Player to broadcast live audio/video resources on the network that conform to the RealMedia specification, and RealMedia can be customized for different network transmission rates. RealMedia can develop different compression ratios according to different network transmission rates, thus realizing real-time transmission and playback of video data on low-speed networks. Another feature of this format is that users can use RealPlayer or RealOne Player to play online without downloading audio/video content.
9. RMVB Format
This is a new video format extended by the RM video format upgrade, it is advanced in that the RMVB video format breaks the original RM format that the average compression of the sampling method, in order to ensure that the average compression ratio on the basis of the rational use of bit rate resources, that is, the still and action scenes with fewer scenes of the screen using a lower encoding rate, which allows more bandwidth. This will leave more bandwidth space, which will be utilized when there are fast motion scenes. This dramatically improves the quality of the motion picture while maintaining the quality of the still picture, thus striking a delicate balance between image quality and file size.
Three, commonly used conversion tools
The following for you to introduce several commonly used conversion tools:
1, Video Conversion Master
Video Conversion Master (WinMPGVideoConvert) supports RMVB conversion function, can be AVI, MPEG1, VCD, ASF, WMV, RM, QuickTimeMOV and other video formats into RMVB format, but this feature does not play a big role in MP4 player format conversion. However, Video Converter Master can convert almost all video formats to Divx AVI format, and supports RM to AVI conversion, which is more convenient for those who have many RM files on hand.
However, Video Converter is slow in converting RM files to AVI format and takes up more system resources. But when other formats are converted to each other, the speed is much faster. Because of the different configurations of individual machines, the quality of the file is also different, so the time data does not have much significance, here will not do a precise test. Although the software supports any video file into RMVB format, but does not support the RMVB format into a variety of other formats, given that most MP4 players support Divx AVI format, so it still makes sense. If you want to convert RMVB format to other formats, you can do it through Video Converter Master's RMVB-AVI function.
2, TotalVideoConverter
TotalVideoConverter from the name of the software can be seen, this is a number of formats to support the conversion software. The interface is very simple, a little itune style. Although the interface is in English, it is still relatively foolproof, so you can adjust the parameters, input files, and output folders. This software supports batch conversion of multiple tasks, and the operation is very user-friendly. After selecting the output type, the settings below can modify the parameters, including width, height, frame rate, bit rate, audio sample rate, and so on.
This software can support a lot of formats, including AVI, ASF, WMV, RM, etc., and the output options are also very many, as you can see in the screenshot below, when you select a converted file, the software will prompt you to convert the type of format, which includes almost all the formats. Among these formats, we also found a very practical function, which is to convert various source files to PSP-supported videos, ipod-supported videos and even 3GP format commonly used by cell phones.
TotalVideoConverter is also able to support the conversion of RM format, and the converted formats are very many, common AVI, WMV are all available, and the speed is very fast. It takes about 2 minutes to convert a 5-minute MTV in RM format to an AVI file in Divx format. This is also a **** enjoyment software, when unregistered, a dialog box prompting for registration often appears when opening the software and operating it.
Four, a variety of format conversion software and procedures
1. AVI format into other formats
AVI format is a video format that we often see, for its conversion is supported by a lot of software, the following will give you a AVI and MPEG (Mpeg1, Mpeg2) and WMV format to convert the software! --Honestech MPEG Encoder 7.0.
Software name: Homestech MPEG Ebcider7.0
Software size: 9.8MB
Software language: English
Running environment: Windows9x/Me/NT/2000/XP/2003
Download: /soft/72033.htm
Honestech MPEG Encoder is a very easy to use program with an uncomplicated interface. It uses a special encoding algorithm: motion estimation algorithm technology and Intel MMX support, which enables it to convert files faster and more accurately. Although the encoding is special, you don't have to worry that the operation steps are too complicated. After starting Honestech MPEG Encoder, click the "Add" button on the main interface, find the video file you want to convert in the pop-up dialog box, and then select the video file you want to convert from the "Option" panel. In the "Option" panel, select the format you want to convert (Figure 2), and set the location of the target file, then return to the main interface and click the "Encoding" button on the top of the main interface to convert the file. In addition, it can also convert RMVB, DV AVI, DivX and MPEG-4 files to MPEG-1 and MPEG-2 formats.
2. Convert MOV format to other formats
MOV was originally a video file format in Apple computers, with a high compression ratio and perfect video clarity and other characteristics, since the Quicktime driver, we can also play MOV files on the PC, but after all, support for the MOV format of the player is still very little. Then we introduce a powerful MOV conversion software - Xilisoft MOV Converter, using it can be very easy to convert MOV format into a video format we know and most players support.
Software Name: Xilisoft MOV Converter 2.1.55.1205b
Software Size: 5473KB
Software Language: English
Operating Environment: Windows9x/Me/NT/2000/XP/2003
Download: c. onlinedown.net/soft/3000/XP/2003
Download: c. onlinedown.net/soft/3000/XP/2003
Download: c. onlinedown.net/soft/3000 onlinedown.net/soft/31343.htm
Use ASF Converter to easily convert Windows media files (.asf,
.wmv) to AVI, MPEG and other formats, open the main interface of ASF Converter, click the "Add" button, find the video file you want to convert in the pop-up dialog box, and then select the format you want to output, click the "Convert" button, as shown in Figure 5.
At the same time, it also supports converting AVI to ASF, WMV files, and MPEG to ASF, WMV files. And it is very easy to convert the files and the conversion speed is very fast.
5. Convert MPEG-4 format to other formats
TMPGEnc Plus is a program that can convert your MP4(? .avi) to Mpeg-1 or Mpeg-2, i.e. VCD format, and it can also burn the converted files directly to a CD-ROM and be able to watch them on a normal VCD player.
Software Name: TMPGEnc Plus 2.520.54.163
Software Size: 10.02MB
Software Language: Simplified Chinese
Running Environment: Windows9x/Me/NT/2000/XP/2003
Download Address: . soft/21676.htm
Using this software, you can easily convert RM and RMVB files to AVI, VCD, SVCD, DVD, MPEG, WMV and other formats, as shown in Figure 8, and you can also set detailed parameters for the converted video formats and support NTSC/PAL. In addition, it also has the ability to import multiple video files of the same or different formats and batch convert them, and because it supports Intel's newly launched Hyper-Threading (Hyper-Thread) technology, the computer is able to perform multiple tasks within the CPU at the same time, which greatly accelerates the process of converting the video formats and improves the efficiency of the conversion.
Of course, RM Conversion Wizard also supports AVI, MPG, MPEG, and WMV formats to convert RM to other video formats.
8. Full-featured format conversion
In the above we introduced most of the video format conversion, the use of the corresponding tools can easily complete the conversion of the corresponding video format, but these tools are more or less there will be some "defects": either a single function, or is full of screen! E text, it is very inconvenient to read. Here we want to introduce a domestic video format conversion tool - the great video pass.
Software Name: Jade Video V2.7 Build 1103
Software Size: 12484KB
Software Language: Simplified Chinese
Operating Environment: Windows9x/Me/NT/2000/XP
Download: .com/soft/8437. html
Download: .com/soft/8437. html
We have to introduce a domestic video format converter - Jade Video V2.7 Build 1103
We have to introduce a domestic video format converter - Jade Video. html
Howie Solver has always been the most commonly used playback software to play video and audio in our computers, which supports a lot of multimedia formats and is very easy to operate, and also as a Howie produced Howie Video Pass also adheres to many of its advantages. For many image DIY enthusiasts, Howie Video Converter's unique flexible and intelligent copying tool can easily copy DVD whole disk, segments, chapters to hard disk or convert DVD directly to VCD format, so that the video can be made into a normal VCD by burning software, and play it at will on the VCD drive. At the same time, it can also split the DVD into independent video streams, audio streams and subtitle streams, so that you can intercept a certain section according to your own needs and make your own movie or greeting card to share with friends and relatives. In addition to supporting AVI and MPEG conversion at will, it also supports converting MPG, DAT, VOB, AVI, RM and other multimedia format files to MPEG-1, MPEG-2, RM and even GIF format, which is very practical and the image picture is very clear.
Compressing video files
Many times when we see some great videos, we always think of sharing them with our friends, but if the video files are very large, carrying them around or using the Internet to transmit them is very inconvenient, time-consuming and laborious, then you may want to consider compressing the video files. Here we introduce a software called RM Compressor.
Software name: RM Compressor
Software size: 6081MB
Software language: Simplified Chinese
Operating environment: Windows9x/Me/NT/2000/XP
Downloads:/html050432 001082901.html
This is a small and easy-to-use program that can be used on the Internet. It is a small and convenient network streaming media file editing program, it does not need to go through a prior transfer, you can directly for ASF and WMV files to repair, merge and cut and other actions. Repair operation is very simple, open ASFTools, as shown in Figure 11. First click the "Add" button, in the pop-up dialog box, select a video file to be repaired, and then expand the "Repair" list, click the "Basic Repair Then expand the "Repair" list and click the "Basic Repair" button to repair the broken video file. In addition, click the "Advanced Repair" button to enter the Advanced Repair dialog box to customize the repair, and repair a variety of items, as shown in Figure 12.
In addition to this, it can also split video files, and the split video playback is pretty great, with no loss of playback quality after editing. If you want to edit video files, don't miss Asf Tools, a powerful but easy-to-use tool!
Overall: We've learned a lot about the connotations of various video formats, importing video files, and converting video formats to each other, as well as compression of video files and repair of video files. In fact, there are still a lot of video conversion, video compression, repair of good tools on the network has not yet been mentioned, then you can leave everyone to slowly find. All in all, although there are a lot of video formats now, we just need to find the appropriate conversion tool, you can easily convert the system does not support the format into the video format you need, and never have to play a video file to play a hard search for the appropriate player and worry.