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What is the best video and movie quality? Part 5

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What is the best video and movie quality? Part 5

What is the best video format?

There are many different video file formats that allow you to store compressed video and audio information in a single file. Many people used to call the extension of the video file itself a video format, but in reality this extension is just a container in which videos of various formats can be stored. Some users may have faced such a situation that the downloaded video file with the familiar and familiar AVI extension did not want to be played on the computer, because a suitable codec was not found for playing.

Most of the video files distributed on the Internet are now created using the two most common containers, AVI and MKV. AVI container has been used for a long time and many different programs have been written to edit such video files, but with MKV things were quite different for a long time and users did not know how to cut an mkv file.

To play or create each video format, an appropriate codec must be installed on your computer. The most popular codecs can be counted on one hand, and we will consider some of their features below.

The XviD codec of the MPEG4 standard provides high definition images for dynamic scenes. It is distributed completely free of charge and is widely used by amateur video masters to encode any video.

DivX is still one of the most popular codecs and is compatible with all DVD players. By encoding, you get high-quality video with a high level of data compression, allowing you to get small video files. At the moment, the DivX codec is paid when used for encoding.

The H.264 codec has become very popular in recent years due to its higher compression efficiency. When encoding, a very high degree of image compression is obtained with no loss of quality. It has proven itself very well when it comes to encoding HD quality videos.

The MPEG2 codec is used to create DVD video discs and digital television.

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What is the best video and movie quality? Part 4

What is the best video and movie quality? Part 4

Best quality video formats. Video resolution:
Mobile is a video created for mobile devices; Typically, the resolution is between 320 × 240 and 640 × 480 pixels.

Standard Definition (SD): video standard

What is the best video format?

It is no secret that recently there have been very popular sites that distribute free files of movies, music, books, programs and much more. But how not to get confused with all the variety of distributions offered? What video format should you choose? Let’s deal with this. So:

What is the best video format?
One of the most common and good video formats is the avi format. It is small in size and does not lose much in image quality. But there is also an alternative to this format, which combines both an acceptable size and a high image resolution. These are files in mkv format.

And finally, I would like to point out that the highest video quality you can see on a computer is BluRay video. Versions of such files are generally scanned from BD discs. This format is so realistic and deep that it competes with analog tape in the cinema.

Surely, many have heard a term like “codecs”. This is a program that converts diverse information into digital. The essence of the program is that the codecs form a conditional folder for storing data, thanks to this process, the information becomes more convenient for storage. At the same time, the folder structure does not change, only the data transfer method changes.

Today, the most common codecs for saving videos are:

If you want to create your own video or movie presentation, you must decide which video codec to use. Let’s take a closer look at each of them.

XviD. A codec that supports the popular MPEG4 standard. If your movie’s plot contains a lot of movement, choose this particular codec. Dynamic scenes will be clear.

DivX. This codec is perhaps the most popular. If you convert folders with this codec, the video quality will be of the highest definition. Also, the video can be played on any DVD player due to the small size of the saved files.
H.264. This codec will require a separate installation on your computer. But it is difficult to dispute the effectiveness of his work. The quality is still excellent despite the higher compression ratio of the folders.
MPEG4. The most popular video standard. It is widely used in digital television. The standard allows high-speed transmission of any amount of information. This codec is also used to record DVD discs.
These are the characteristics of different types of codecs. Now you must decide what you want to create. For example, let’s say you decided to create a video presentation. To understand which video format to choose in this case, you need to answer the question: where will you broadcast your presentation? If you are going to publish the created video on some special video portal, then a codec like H.264 will suffice, because it allows you to maintain high quality, while significantly compressing the data.

What is the best video and movie quality? Part 3

What is the best video and movie quality? Part 3

To encode video, the best video formats MPEG-2, MPEG-4, H.264 or AVC (video compression standards (codecs) designed to achieve a high degree of video compression while maintaining high quality are currently used ).

Transmission of the HDTV video signal over a short distance (from the user’s tuner (receiver) to the monitor (TV)) is carried out in its original form (uncompressed) via HDMI and DVI-D digital cables. The use of digital interfaces (cables) completely avoids video compression and conversion and preserves the best possible image.

Digital video quality is a measure of signal-to-noise ratio. What is the best video and movie quality, and which can be downloaded from the Internet? Well, first of all, it must be said that the main requirement of Internet formats is compactness. It is clear that the DVD or HDTV format will not work. But almost any video recorded with a mobile phone or digital camera meets the requirements of the Internet. And the question arises, what is the most optimal and best video quality with maximum compression for the convenience of downloading from the Internet, and what are the designations of movie formats?

Better quality HDTV movies are confused by many Internet users with the HDTV-Rip video extraction method. HDTV-Rip is a video copy of a high definition video (movies) streaming source: HDTV. This can be done using a variety of codecs and compression methods. As a result, HDTV-Rip movies may not be of the highest HD quality. Rip video streams from an HDTV channel may come with the channel logo. Also, do not confuse HD video with HDTV high definition video.

What is the best video and movie quality? Part 2

What is the best video and movie quality? Part 2

What is the difference between 1080i and 1080p?

Each of these video formats uses a different way to convert a series of still images into movies. In interlaced scanning (“i” symbol), a still image or “frame” is reproduced by scanning 2 sets of alternating lines or “fields” (half frames). With progressive scan (“p” symbol), a frame is created in a single pass (sweep). That is, if the image scanning in both video formats (“i” and “p”) is performed at the same speed, then an equal number of runs per second occurs, then the advantage of progressive scan (“p”) becomes obvious (image quality is better) as the entire image (frame) is scanned and not half of the image (field). This progressive (“p”) scan generates fewer dots and lines, but doubles the speed.

Bottom line: 1080i and 1080p video formats look best in different conditions. The 1080i video format is designed to reproduce fine image details with little movement or in frames and still images. This video format is much better suited for “spatial resolution”. The 1080i video format works fine as long as there is no frame movement. When objects begin to move, the path of movement between alternating fields (half frames) begins to change. This is called “motion artifacts,” that is, visible image noise or video distortion that resembles an uneven pattern. 1080i video quality is considered outdated.

1080p video quality takes priority in motion. It does not introduce visible distortions in the image, regardless of the speed of moving objects, so it has the best “temporal resolution”. However, still images will not look very clear when the image is frozen, because there are far fewer dots and lines in 1080p video compared to 1080i.

Long-distance transmission of HDTV video signal (satellite TV – S2, cable TV) is generally done using compression methods to reduce bandwidth requirements for data transmission (from 1.485 Gbps to 8-25 Mbps ), while the video quality is still good.

What is the best video and movie quality?

What is the best video and movie quality?

What video formats are there?

Video (video – watch, watch) is the transformation of an image by a recording device into a sequence of electrical signals recorded in storage (storage).

In addition, video is a great variety of technologies for recording, processing, transferring, storing and reproducing visual or audiovisual material (cinema, films, video recordings, music, video, etc.). Video differs from film and cinematography only in that it uses any medium other than film for its reproduction and recording, although the modern development of digital technologies in filming and digital cinema projectors eventually blurs the line between the video, movies and cinema. The video format determines the structure of the video file, how the file will be stored on the storage medium (CD, DVD, Blu-ray Disc, flash memory cards, hard drives or communication channels).

The best highest quality video today is HDTV (High Definition Television in English): high definition television, high definition television. HD is a high definition video format, a modern format with a high definition of the image.

The most popular HD video formats are:
1) 720p – 1280 × 720 pixels (dots), progressive scan (progressive scan, all lines of each frame are displayed sequentially), 16: 9 aspect ratio, frequency – 24, 25, 30, 50 or 60 frames per second ;

2) 1080i – 1920 × 1080 pixels, interlaced (each frame is divided into two half frames, consisting of lines selected with a line separating, 2 times the frame rate compared to progressive), 16: 9 aspect ratio , frequency – 50 or 60 fields per second;

3) 1080p – 1920 × 1080 pixels, progressive scan, aspect ratio 16: 9, frequency – 24, 25 or 30 frames per second.

Types of videos

Types of videos

MPEG-1

The MPEG-1 video compression format was developed by the Motion Picture Expert Group, an international organization that creates video compression standards. It supports a maximum frame resolution of 4095 x 4095 pixels at a frame rate of up to 60 times per second. However, a resolution of 352 x 288 is generally used, which corresponds to the quality of recording on a normal VHS cassette.

How is the information compressed in this format? Suppose we have the following scene: the car moves from point “A” to point “B”. The movement of the machine can be described by two parameters: the vector of movement from point “A” to point “B” and the angle of rotation around its axis. At the same time, the background remains unchanged or almost unchanged: the viewer is unlikely to pay attention to the vibrations of small branches near distant trees. So you can divide the frame into two components: the background, which is saved once and then replaced during all-frame playback, and the area where the car moves, will have to be recorded separately for each frame.

Digital video: an overview of formats

In MPEG-1 format, all frames in a movie are classified into three types: I, P, and B frames. The first type (I-frames, Intra Frames) includes anchor frames. Your images are saved in their entirety in JPEG format. For the predicted frames, only the differences from the previous i-frame are recorded, which requires much less disk space. For B-frames (bidirectionally interpolated frames), the differences with the previous and next I or P-frames are preserved (Fig. 2).

Digital video: an overview of formats

As a result, the compressed file size is approximately 1/35 of the original. This means that an hour and a half movie with the quality equivalent to an analog VHS cassette in MPEG-1 format will fit on two CDs. For transmission over the Internet or in satellite transmission networks, this standard, of course, is not suitable. But there have been many consumer video CD players that work in this format (and they are still being produced now, by the way).

MPEG-2

MPEG-2 is an additional extension of MPEG-1. The recommended frame size has been increased; it is now 1920 x x 1080 pixels, added support for six channel audio. However, playing video in this format requires more processing power from your computer.

It should be noted that work was underway to create the MPEG-3 standard (not to be confused with the now popular audio compression format: MPEG-1 Audio Layer 3). It was supposed to become the basis for HDTV digital television systems. But the work was interrupted, because the necessary requirements for HDTV were implemented in the form of small extensions of MPEG-2.

This format is now quite widespread in the West: it is used to transmit video through satellite channels and digital cable networks, in addition, all DVD video discs are recorded in this format.

MJPEG

In fact, MJPEG (Motion JPEG) is a transition format from compressing normal photos to compressing videos. Each frame is recorded in JPEG format and then placed in the footage. MJPEG is mainly used in video editing cards like Fast AV Master, MiroVideo DC50, etc. You can reduce the video stream from 30MBps to 6MBps. For use in home video players, this standard is not very suitable due to the low compression ratio (5: 1) and the lack of means to synchronize video and sound.

MPEG-4

The MPEG-1 and MPEG-2 formats did not provide a real possibility to transmit video over the Internet and create interactive television based on them: the file size was too large. To drastically reduce it, as well as implement other functions necessary for video transmission, work has begun on the specifications of a new format: MPEG-4. In fact, it does not focus so much on video compression as on the creation of so-called “multimedia content”: the fusion of interactive television, 3D graphics, text, and so on.

As for the video itself, the most important innovation was the further improvement of technologies for decomposing a scene into objects and algorithms for their effective compression. Thus, for example, when compressing a video recording of a tennis match, most of the frames can be conditionally decomposed into images of the stands (background) and the players.

Which video format is the best?

Which video format is the best?

At the moment, you have a large number of different options for storing and presenting information. There are many different video formats, each with unique characteristics. And although a modern video converter supports many formats at the same time, you must first find out which video format is better.

To convert any information into digital form, special programs are used – codecs. They create a special file – a container in which all the data is stored. You should not confuse these concepts, as they mean fundamentally different things.

A codec is a special computer program that converts a stream of data or a signal for later use. Codecs transform the information available to store it more optimally and compactly. In this case, the main structure of the file (container) remains the same, only the way the data is presented changes. The most popular codecs for video recording are: DivX, XviD, MPEG2, H.264, etc. If you decide to record a movie or, for example, create a slide show online, you must decide which video codec to use. Familiarity with the main codecs will help you determine which video format is best.

XviD is a modern MPEG4 codec. Allows you to obtain high definition images in dynamic scenes. Therefore, when choosing a codec, proceed from the characteristics and characteristics of the video file itself. This will allow you to understand which video format is best for a particular case. Unlike DivX, XviD is free software released under the GNU license.

DivX is one of the most popular video codecs. Provides high-quality images. The files converted with this codec are small and can be viewed on almost all modern DVD players. As of the fifth version, you paid for encoding.

H.264. Compared to the two previous video codecs, H.264 is more efficient and offers higher compression rates without compromising on quality. However, as a general rule, this codec is not available on the computer initially and must be installed additionally.

MPEG2 is a popular video standard that is actively used in digital television to provide high-speed information transmission. In addition, the MPEG2 codec is used when recording DVD discs, as well as in video compression systems.

On the Internet, you can find compressed files using a wide variety of codecs, both popular and rare. Quick and convenient it will allow you to open and convert videos of any format.

The codecs then convert the information into a special file called a container. A container is a kind of shell in which the information converted by codecs is stored digitally. The container structure is heterogeneous and includes several components: video stream, audio stream, various additional information (file information, titles, etc.). Therefore, the container itself cannot convert information, it only serves to store it. The most common containers are AVI, TS, MP4, MKV. Let’s look at some of them in more detail to answer the question, which video format is the best?

Video formats and video standards

Video formats and video standards

First, let’s decide the video standards. They should be taken into account when creating a video movie or video.

PAL and NTSC standards
PAL is a video standard for analog color television used in Europe and Russia: 720×576 video size, 25 fps (25 frames per second).

NTSC is a standard for analog color television, developed in the USA, with a resolution of 720×480, 29.97 fps.

There is also the SECAM standard developed in France.

When creating a video in the editing program, converting it, burning it to a disc, make sure that the PAL standard is selected in our settings (if you live in Europe). Learn more about video standards.

At the time of writing this article (2010) this was very relevant, but now analog television is actively being replaced by digital and will soon be completely supplanted.

VHS – Analog Video is the format of video tapes, which was (and still is) seen on the VCR.

DV (Digital Video) is a video format jointly developed by the world’s leading video companies for digital recording. This format has a low video compression ratio (5: 1) and provides high quality video recording. In this format, video is recorded with MiniDV cameras.

The DV format is characterized by a large video stream and consequently has a large output video file. An hourly recording on a MiniDV cassette will have a volume of approximately 12-13 GB, or 1 minute – 200 MB.

The resulting video must be compressed for later viewing on a computer, projector, DVD player, on the Internet. Those. From the resulting high-quality video, we can obtain any format we need with the appropriate quality.

Attention! It should not be confused with the DVD (Digital Video Disc – DVD), a disc with digital information, what we call in the life of the DVD-ROM.

AVCHD – high definition video format, means: advanced video coding – advanced video coding, HD – high definition – high definition. This is the most modern format used in HD cameras. More >>

Compression standards
MPEG is one of the main compression standards. The abbreviation MPEG (Moving Pictures Expert Group) is the name of the international committee that develops this compression standard. Its varieties:

MPEG-1 – a compression format for compact discs (CD-ROM). The video quality is the same as that of a normal VCR, the resolution is 352×240, a disc with a movie in this format is usually designated as VCD (VideoCD). It is rarely used now.

MPEG-2 is a format for DVD, digital television. In this format, video is recorded with DVD, HDD and Flash cameras.

MPEG-3: not currently used. Do not confuse it with MP3 (MPEG Audio Layer 3) – audio compression technology.

MPEG-4 is a format obtained using the popular DivX, XviD, H.264, etc. codecs. It is often simply called MP4. It reduces the video stream even more than MPEG-2, but the picture is of decent quality, so this format is compatible with most modern DVD players. Of particular note is the high-quality video compressed with the latest-generation H.264 codec.

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HD (high definition) is a high definition format, a new format for high definition images. Currently, two varieties are used: with a resolution of 1280×720 and 1920×1080, both are designed for a frame with an aspect ratio of 16: 9 and a square pixel.

There is also the so-called anamorphic version of HD video with a resolution of 1440 x 1080 and an aspect ratio of 16: 9, which is explained by a rectangular pixel (1.33 aspect ratio).

Recently, most consumer cameras have been recording in HD format based on the MPEG-2 codec. The video quality is high, but to watch HD videos, you need to have the appropriate display equipment (for example, an LCD or plasma TV with a large diagonal), otherwise you will not be able to appreciate the video quality (watch and edit HD videos).).

Video file extensions
AVI
AVI (Audio-Video Interleaved) is an extension of a large number of video files, but it is not a format or codec. It is a container developed by Microsoft that can store 4 types of transmissions: video, audio, text and midi.

This container can contain video of any format from mpeg1 to mpeg-4, sounds of different formats, any combination of codecs is possible.

What is video format and which one is better?

What is video format and which one is better?

If you went in and read this text, it is likely that you have already encountered the difficulties of video playback and the concept of video format. In this article, I would like to highlight common questions about what is a video format, what formats are there, and what is their difference, as well as give advice on how to choose the most convenient format to store your video.

Generally speaking, a video file is a set of still images that switch between each other at a certain frequency. Each image is a separate video frame. This is true when it comes to uncompressed videos. These video files take up a lot of disk space and it doesn’t always make sense to store them. And it makes sense when the video is of optimal quality and size. We can achieve this by using the desired format.

What is the video format?

The video format is determined by two parameters: a container file (in which the recording is stored) and the codecs (used to process sound and images)

What is a container file?

Consider the video recording process on any digital video camera. A video camera records sound and video in separate sequences (tracks), encoding each of them with a special program: a codec. Then both tracks are put into a special file, the same container file, where they are given a description. This information will further help the media player to correctly synchronize the image and sound when playing a video.

What is a codec?
A codec is a program that compresses when recording and decompresses multimedia information during playback: audio, video, etc.

So how are the formats different?

The content of the container file. For example, you can put multiple audio tracks and subtitles in an AVI container. And in the MKV container, you can pack whatever you want: any number of video and audio tracks, animated and test subtitles, fonts for them, and much more.

Codecs used. Despite the wide variety of codecs, each format is “friendly” or compatible only with certain audio and video codecs.

For example, an MPEG container only allows video compressed with MPEG-1 or MPEG-2 codecs. But its younger cousin, the MP4 container, is less demanding on connections: here the choice of codecs will be wider.

Many others stem from these two basic differences:

File size
video resolution
the ability to play videos online
picture quality
other…
There are formats that produce ultra-clear images and great sound, but take up a lot of disk space, and there are formats that cannot boast of video image quality, but take up very little space. Therefore, to the question: “Which of the video formats is better?” – everyone must answer for themselves. Depending on the characteristics of the device on which the movie or clip will be viewed, the best quality, the “clearest” or, for example, the most common format may be the best.

We recommend that you choose for yourself several “on duty” formats, which will be adapted to each one according to your needs. Here are the format guidelines for different storage locations.

Video for online storage:
YouTube, Vk, Facebook, Vimeo
Please use MP4 format with H.264 and AAC codecs. This setting provides the highest video quality with the smallest file size.
Other places
Most modern sites are “compatible” with MP4, FLV, AVI, and WebM, so choose one of them.
Video storage on computer:
If you have a powerful computer (see the specs below), protect your recording in MKV or MTS (M2TS) and enjoy excellent picture and sound quality
Intel, AMD (or compatible) processor with a frequency of at least 1 GHz.
1280×1024 screen resolution, 32-bit color (or higher).
1 GB of RAM for Windows XP, 2 GB for Vista, Windows 7 and 8.
NVIDIA® graphics with CUDA ™ technology support.
If your computer does not meet the above specifications, save the video with a video resolution of no more than 960×540 pixels in MP4, AVI, WMV format if it is Windows OS and MOV or MP4 if you have Mac OS X.
Video for storage on a mobile device:
Convert video for mobile phone with video converter. I recommend FormatFactory. It has many presets for popular models and a simple interface to help you convert your videos to the format you want.

Personally, I think that you should focus on popular video hosting sites like YouTube and Vimeo anyway, and compress videos with compression parameters similar to what these two giants use at home.

WHICH VIDEO FORMAT IS BEST AND WHY: A DETAILED DESCRIPTION

WHICH VIDEO FORMAT IS BEST AND WHY: A DETAILED DESCRIPTION

Not all video fans understand how some video formats differ from others. And in vain! After all, if you accidentally or intentionally install the wrong extension in the video editor while saving the project, then serious difficulties with the clip playback can arise. In this article, you will learn about the features of popular extensions and when and which one to choose.

What video format is better?

Learn about the characteristics of the formats, then you can watch videos on any device!

WHAT IS FORMAT
The format is the structure used to store data. Its designation is an identifier, separated by a period at the end of the name: .wmv, .avi, .mp4, etc.

For a video file, the media container and codec are responsible for the extension. When recording or rendering a movie, the data, including individual frames and an audio track, is compressed and placed in a special container. For later playback, the same video codec is used, which can decode information and display it in its original (or almost original) form. The media container itself cannot determine how the data is encoded, but it works fine with certain codecs. It also stores meta information about the object: size, duration, author, etc.

Both codecs and multimedia containers are involved in the recording and playback process, but the format is indicated precisely by the type of container used: AVI, MPEG-4, MKV and others. Codecs also have their own names: H.264, DivX, Theora. But most of the time they are distributed in packages, and the description does not indicate their names, but the media containers with which they work. This is a simplified answer to the question of what is a format. A more complex one involves many terms that are unnecessary for the average user.

WHAT ARE THE DIFFERENCES BETWEEN CONTAINERS?
In the simplest cases, they only store video and audio streams. In more complex ones, you can save multiple video tracks, synced subtitles, and chapter marks for quick navigation through content.

When choosing which format is best for converting video, you need to remember that certain media containers are used for minimal compression to get an accurate image, but this often results in a large size. Others compress the material more, saving space on the media. Some of them support tracks that are only compressed in specific ways. For example, MPEG-4 Part 14 works with files compressed with H.265 / HEVC, H.264 / AVC, and MPEG-4 Part 2.

WHICH VIDEO FORMAT IS BEST?
Almost any of the extensions have their own advantages, otherwise their existence would be meaningless. But when creating your own movie or, for example, choosing a movie to watch, you have to rely on two components: opportunity and prevalence.

Choose the format according to the device you will see the video on

Capacities mean the number of video tracks that will be stored there, subtitles, chapters, and more. The prevalence depends on the probability that a movie will run on a device without installing additional codecs. If you directly answer the question of which video format is better, then the answer will be one of the three most common: AVI, MKV or MP4.