5 minutes to read the mysteries of movie file naming

Now TVs and computers are already 1080P/720P, and even 4K resolution, including mobile phones, almost no non-HD devices. Correspondingly, the film source is also beginning to be mainly HD content. However, what are the movies you download clearly?

001

What does the noun of a movie file mean?

002

Remux, BluRay

Blu-ray original disk is not compressed, the highest definition, a movie capacity of about 30GB ~ ​​50GB, generally have two ways of writing, but the latter BluRay if followed by X.264 or H.264 is not the clarity of the original Blu-ray .

BluRay/BDrip

Blu-ray movie files that are transcribed using different compression algorithms have the second highest resolution, but take into account both the capacity and clarity requirements. Generally this movie capacity is probably between 10GB and 20GB.

WebRip (Web-DL)

This format is actually for iTunes (iTunes online store), the clarity is also good, but the volume is much smaller, most of the compression using H.264 format. Basically, the same source, WebRip may only need 5GB, and BDRip may look 8GB ~ 10GB (of course, there are differences in quality).

HDTV, HDRip

Simply speaking, it is the transcription from TV programs, such as recording and broadcasting of HDTV stations. The most intuitive manifestation is the station logo. For example, the HDTV format is very easy to see in the US dramas, high-definition entertainment, etc. HDRip is the HDTV. The video content is further compressed. H.264 is mostly used for video encoding, and ACC is used for audio processing to make the resolution even worse than WebRip.

The higher the resolution, the better

Now that there are a few movies that already have 4K, 4K on the movie has a resolution of 4096x2160, and our common 4K monitor and TV are actually 3840x2160 (Note: The 4K resolution used on TVs and computers is also called For UHDTV), that is, there is a difference in width (proportional problem). To put it plainly, there will still be black borders when watching movies...

003

1080P, 720P = 1080P do not have Xiaobian say it, 1920 × 1080, and now we are all familiar with the gray; 720P Xiao Bian will not be introduced in detail.

At the same physical size, the higher the resolution, the smaller the dot pitch and the finer the picture. However, the improvement in resolution does not mean that the picture is very good. Why? Continue to pull down

The only thing that affects the quality is it

H.264

H.264 belongs to MPEG-4 encoding, which is a high-computation encoding format. The advantage of H264 is that it has the smallest capacity of RAW in current video files. The disadvantage is that it requires a large amount of computing time for encoding, H264 supports hardware acceleration, and H264 support. From the full-speed full-frame technology (15fps to 6000fps), the most significant feature of H264-encoded files is the suffix .h264. For example, Xiao Bian mentioned in front of BluRay that if H.264 is followed by this encoding, the definition is basically the same, but the capacity is greatly reduced (relative to the Blu-ray original disk).

004

X264

Strictly speaking, X264 is not an H.264-independent encoding technology. X264 is another H.264 open-source encoding format. Its beginning "X" means "software" and is a video format that uses a soft decoding of the CPU. X264 does not support hardware acceleration. It is purely based on the CPU to decompress playback - of course, the benefits are obvious and the compatibility is excellent. In particular, the computing power of the CPU is good enough, so it does not make much difference when playing video (CPU occupancy rate is higher than that of H.264 encoding).

AVC1

AVC1 is actually a kind of H.264 encoding. This is just a product of Apple's maverick. The code developed by Apple to comply with the H.264/AVC standard is called AVC1. Note that many Web-DL movie files have AVC characters.

H.265

H.265 is the king of the future and it will soon replace H.264 as a new generation of video encoding. Simply put, its compression algorithm is more efficient, H.265 transmits higher quality network video under limited bandwidth, and only needs the original half bandwidth to play the same quality video. Take a chestnut, the same 1080P HD movie, compressed with H.264, the capacity may be 10GB; and using H.265 encoding compression, the same effect of the video, the capacity is only 5GB! However, H.265 is still not popular because the solution to support this hard-coded solution is still not popular enough. After the 6th generation Core Duo processor on the computer supports H.265 encoding, the Xiaolong 808/helio X10 needs to be processed on the phone. In order to support (in the middle of the same generation can also be); TV box to HI3796M/AmlogicS905/RK3368 and so on can support. Obviously, there is still a little distance from popularity.

005

According to Xiaobian, whether a movie is clear or not can be judged by looking at the file name. For example, "xxxxxx.2016.BluRay.1080p.DTS.x264 13.34GB" first is to see that he was converted from a Blu-ray disc, indicating that the original material quality is very high; then see the video encoding is X264, a capacity of 13.34GB, indicating the encoding The degree of compression is acceptable, and the loss of detail in the picture is not significant; the final resolution is 1080P, which is also the standard of high definition. Some movies are also known as 4K, but the capacity is only 5GB, obviously the compression ratio is very high, the loss of picture details is serious, basically not as good as a 1080P HD movie, there is only a high resolution only. So, don't be fooled by a simple 1080P. There are more places to look at movie names.

006

Intake Manifold Absolutely Pressure Sensor

Intake Manifold Absolutely Pressure Sensor,Intake Manifold Pressure Sensor,High Pressure Sensor,Manifold Sensor

Shenzhen Ever-smart Sensor Technology Co., LTD , https://www.fluhandy.com