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Cedric Verstraeten
2023-12-28 11:29:33 +01:00
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## H264 vs H265
If we talk about video encoding there are 2 major video encoders on the market: H264 and H265. Depending on your use cases you might use one over the other. We will a (not complete) overview of the advantages and disadvantages of each in the field of video surveillance and video analytics. If you would like to know more, you should look for additional resources.
If we talk about video encoders and decoders (codecs) there are 2 major video encoders on the market: H264 and H265. Taking into account your use cases you might use one over the other. We will provide an (not complete) overview of the advantages and disadvantages of each codec in the field of video surveillance and video analytics. If you would like to know more, you should look for additional resources on the internet (or if you like to read physical items, books still exists).
- H264 (also known as AVC or MPEG-4 Part 10)
- Is the most common one and widely supported for IP cameras.
- Widely supported in browsers and other type of applications.
- Is the most common one and most widely supported for IP cameras.
- Supported in the majority browsers, operating system and third-party applications.
- Can be embedded in commercial and 3rd party applications.
- Different levels of compression (high, medium, low, ..)
- Better quality / compression ratio.
- Better quality / compression ratio, shows less artifacts at medium compression ratios.
- Does support technologies such as WebRTC
- H265 (also known as HEVC)
- Is not supported on legacy cameras, though becoming rapidly available on newer IP camera version.
- Is not supported on legacy cameras, though becoming rapidly available on "newer" IP cameras.
- Might not always be supported due to licensing. For example not supported in browers on a Linux distro.
- Requires licensing when embedding in a commercial product (be careful).
- Higher levels of compression (50% more than h264).
@@ -279,7 +279,7 @@ If we talk about video encoding there are 2 major video encoders on the market:
- Recording the same video (resolution, duration and FPS) in H264 and H265 will result in approx 50% the file size.
- Not supported in technologies such as WebRTC
Conclusion: depending on the use case you might choose one over the other, and you can use both at the same time. For example you can use H264 (main stream) for livestreaming, and H265 for recording. Depending on your use case where you wish to play recordings in a cross-platform and cross-browser you might opt for H264 for better support.
Conclusion: depending on the use case you might choose one over the other, and you can use both at the same time. For example you can use H264 (main stream) for livestreaming, and H265 (sub stream) for recording. If you wish to play recordings in a cross-platform and cross-browser environment, you might opt for H264 for better support.
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