The soft solution and hard solution of video decoding

The soft solution and hard solution of video decoding

Hard Solution : the literal meaning of understanding is to use the hardware to decode, video acceleration through the graphics card to decode high-definition video, it is clear that a dedicated circuit board (so good understanding ...) To decode the video, it depends on the graphics card GPU .

Soft Solution : The literal understanding is to use software to decode, so understanding is also true, but the actual most always want hardware to support, this hardware is CPU .

Now that we have these two different decoding methods, how do we make a choice in the development? Which is better?

• Advantages and disadvantages of hard solutions:
  The graphics core GPU has a unique computational approach, decoding efficiency is very high, and the module that acts as the decoding core is not expensive. This not only can reduce the burden of the CPU, but also has low power consumption, less heat and so on. But since the hard decoding started late,
  Software and drivers have a low level of support. Hard decoding built-in what kind of module will be able to decode what kind of video, face the network of chaotic video encoding format, can not be fully compatible with. In addition, hard decoding of filters, letters, quality enhancement aspects are very inadequate.

  Advantages: Low power consumption, less heat and high efficiency.
  Cons: Poor video compatibility, low support.

• Advantages and disadvantages of soft solutions:
  During the decoding process of soft decoding technology, a lot of video information needs to be calculated and the CPU performance is very high. Especially for high-definition large-bitrate video, the huge amount of computation will result in low conversion efficiency, high calorific capacity and so on.
  However, because of the soft decoding process does not require complex hardware support, the compatibility is very high. Even if the new video encoding format, just install the corresponding decoder file, you can play smoothly. And the soft decoding has rich filters, subtitles, picture processing optimization and other effects,
  If you are strong CPU enough, you can achieve a better picture effect.

  Advantages: Strong compatibility, full decoding, good effect
  Disadvantages: CPU high demand, low efficiency, big heat

On the soft solution and hard solution which is a better question has been a hot issue, in fact, I do not feel good or bad points, each have their own advantages and disadvantages and the use of conditions, according to the need to choose the most appropriate.
Playback bitrate is larger than the video, the hard solution may be smooth playback, but the soft solution may appear in the presentation, screen and sound is not synchronized problems. But the hard-to-play video is mostly not allowed after the decoding of software post-processing, such as some noise reduction and other post-filter,
This may make people feel that the picture quality is not very good. Of course, the above situation is CPU different GPU from the ability. In general, there are the spring and autumn, suitable for you is the best.

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The soft solution and hard solution of video decoding