In the same bit rate, which video formats are Ogg, MPEG4, and WebM have higher definition? Why? -

0 reply content: Invited to answer. I am not familiar with this topic.
First, ogg is only in the container format, while codec is the main factor in performance comparison. Ogg is a vorbis-encoded audio file, which cannot be compared with the video format. In my opinion, the subject refers to Theora format.
Second, MPEG 4 is a specification, and it is a large batch of specifications. Different implementations can support some of them, so the difference is great, for example, DivX, Xvid, QuickTime 6 +, and wmv9 are all implementations of MPEG 4 and cannot be generalized. Part 1 of the MPEG 4 specification is H.264, which stands for the H.264 encoder.
Therefore, the subject wants to compare Theora, H.264, and VP8 (WebM Video Encoder ). Generally, VP8 is better than Theora (Theora is based on VP8 before and after ...... VP3), equivalent to H.264 (or slightly inferior to H.264 ). However, video quality is a very complex task, which is affected by many factors. For example, some tests have concluded that Theora quality is close to H.264. Therefore, it is better to test it by yourself.