3 Temmuz 2023 Pazartesi

H.264 Nedir? - Bir Codec Standardı

Giriş
H.264 bir codec standardı. Açıklaması şöyle. Yani video cihazından görüntüyü yakalar ve dijital hale getirir.
H.264 is one of the most popular codecs for live video streaming, and it can be used to create video files in various resolutions up to 8k.
Bu standardı gerçekleştiren farklı encoder'lar var. Farkı vurgulayan bir açıklama şöyle
Consider the case for H.264. The standard's name is H.264 – that's not the name of the actual encoder. Mainconcept is a very good commercial encoder, whereas x264 is a free and open source one. 
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The mere fact that you can optimize encoding makes for a competition here. Both encoders will deliver a standardized bitstream that can always be decoded by a H.264-compliant decoder.
Sıkıştırma
Açıklaması şöyle. Sıkıştırma yöntemlerinden bir tanesi interframe compression. İki frame arasındaki fark gönderilir.
How does H.264 encoding work?

H.264 is a video compression standard that is commonly used to encode video files for a variety of purposes, including streaming over the internet. H.264 uses a combination of techniques to reduce the size of video files without significantly impacting the quality of the video. One of the key techniques used by H.264 is known as “interframe compression.” This technique involves analyzing the differences between consecutive frames of the video and only storing the information that has changed from one frame to the next. By storing only the differences between frames, H.264 is able to significantly reduce the amount of data that is required to represent the video. H.264 also uses techniques such as quantization, entropy coding, and motion compensation to further reduce the size of the video data. These techniques involve analyzing the video data and removing redundant or irrelevant information, as well as using advanced mathematical algorithms to represent the data more efficiently.

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