Listening to many people talking about the term 4K first year, some people say that 2013 is the first year of 4K, and some people say that 2014 is the first year of 4K and there are different opinions. Actually, there is no official definition of the word in the first year. It is just that everyone has agreed to become a vulgar. It also shows that the 4K technology is mature, and it faces an explosion and leads the trend. Especially in 2014, whether it is a large-scale international exhibition or a domestic large electrical appliance mall, 4K TVs and TV boxes supporting 4K have become quite hot and active.
And now most of the video sites' so-called high-definition resources are just shrinking 720P, although the resolution reaches 720P, but the standard bit rate (the number of data transmission per unit of time) is still at a relatively low level. As a result, 4K became the main selling point of TV boxes on the market.
But the truth is that most TV boxes use H.264 technology and only support 4K TV resolution output. The playback resources are still 1080P or even 720P video. The TV box using H.265 decoding standard can play 4K resources smoothly.
Because the file size of 4K video itself is much larger than that of ordinary video, H.264 technology is used for encoding and compression, and the file can reach several tens of g size, online playback will be very slow, and even cause buffering failure. Moreover, when playing a 1080P or 720P file through a TV box that only supports 4K output resolution (ie, simply changing the TV screen resolution), the screen will become blurred due to the difference in resolution and pixel blocks between the 4K screen and the 1080P screen. It can't change the original format of the file. When playing, it can only stretch the pixels to play, causing the picture quality to deteriorate.
Only by re-encoding and compressing the 4K video through H.265 technology can the size of the 4K video be effectively reduced, so as to ensure online playing in a normal network environment. The H.265 standard revolves around the existing video coding standard H.264, and uses advanced techniques to improve the relationship between code stream, encoding quality, delay, and algorithm complexity to achieve optimal settings. The specific research contents include: improving compression efficiency, improving robustness and error recovery capability, reducing real-time delay, reducing channel acquisition time and random access delay, and reducing complexity. Due to the algorithm optimization, H264 can implement standard definition digital image transmission at a speed of less than 1 Mbps. The H265 can realize transmission of 720P (resolution 1280720) ordinary high-definition audio and video transmission at a transmission rate of 1 to 2 Mbps.
Therefore, the H.265 decoding standard should be able to be called a true 4K TV set-top box.
Judging from the TV boxes currently on the market, the Glory Box released at the end of the year supports the H.265 decoding standard. And compared to other resources that need to pay for the box, Glory Box playback resources do not appear to pay or can not watch the content of the situation. The movie section has also specifically classified 4K movie resources and will update them. At the same time local HD video playback also supports a variety of video and audio formats.
In general, 4K ultra-high definition image quality is the future direction of online video development, but due to the scarcity of film and television dramas currently adopted in the 4K standard, 4K technology has become a famous advertisement for product manufacturers. Therefore, the 1080P movie and television drama can be watched with less input and become the most cost-effective choice. In response to this phenomenon, the Glory Box made its 4K and 1080P truly integrated through its own H.265 encoding technology. No matter if it was viewed on websites such as Sina.com or Tianya, it could be truly flawless.
And now most of the video sites' so-called high-definition resources are just shrinking 720P, although the resolution reaches 720P, but the standard bit rate (the number of data transmission per unit of time) is still at a relatively low level. As a result, 4K became the main selling point of TV boxes on the market.
But the truth is that most TV boxes use H.264 technology and only support 4K TV resolution output. The playback resources are still 1080P or even 720P video. The TV box using H.265 decoding standard can play 4K resources smoothly.
Because the file size of 4K video itself is much larger than that of ordinary video, H.264 technology is used for encoding and compression, and the file can reach several tens of g size, online playback will be very slow, and even cause buffering failure. Moreover, when playing a 1080P or 720P file through a TV box that only supports 4K output resolution (ie, simply changing the TV screen resolution), the screen will become blurred due to the difference in resolution and pixel blocks between the 4K screen and the 1080P screen. It can't change the original format of the file. When playing, it can only stretch the pixels to play, causing the picture quality to deteriorate.
Only by re-encoding and compressing the 4K video through H.265 technology can the size of the 4K video be effectively reduced, so as to ensure online playing in a normal network environment. The H.265 standard revolves around the existing video coding standard H.264, and uses advanced techniques to improve the relationship between code stream, encoding quality, delay, and algorithm complexity to achieve optimal settings. The specific research contents include: improving compression efficiency, improving robustness and error recovery capability, reducing real-time delay, reducing channel acquisition time and random access delay, and reducing complexity. Due to the algorithm optimization, H264 can implement standard definition digital image transmission at a speed of less than 1 Mbps. The H265 can realize transmission of 720P (resolution 1280720) ordinary high-definition audio and video transmission at a transmission rate of 1 to 2 Mbps.
Therefore, the H.265 decoding standard should be able to be called a true 4K TV set-top box.
Judging from the TV boxes currently on the market, the Glory Box released at the end of the year supports the H.265 decoding standard. And compared to other resources that need to pay for the box, Glory Box playback resources do not appear to pay or can not watch the content of the situation. The movie section has also specifically classified 4K movie resources and will update them. At the same time local HD video playback also supports a variety of video and audio formats.
In general, 4K ultra-high definition image quality is the future direction of online video development, but due to the scarcity of film and television dramas currently adopted in the 4K standard, 4K technology has become a famous advertisement for product manufacturers. Therefore, the 1080P movie and television drama can be watched with less input and become the most cost-effective choice. In response to this phenomenon, the Glory Box made its 4K and 1080P truly integrated through its own H.265 encoding technology. No matter if it was viewed on websites such as Sina.com or Tianya, it could be truly flawless.
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