Theora 1.1 official release
Less than a year since the release of the previous version of Theora 1.0, Xiph introduced a new official release of the free and free video codec Theora 1.1 , which has long been predicted as an alternative to proprietary formats.
The new version greatly improved the quality of coding, a two-pass encoding function appeared, a faster decoder was made, video broadcasting over the Network was significantly improved: the possibility of ejection of individual frames if necessary was made, a more uniform load was made on the encoding CPU, etc. More about all the innovations can be found here and here .
Improved coding quality is visible to the naked eye. Below are screenshots from the Firefox advertising video ( original ). The first version is encoded with Theora 1.0 ( 9 MB ), and the second with the Theora 1.1 codec ( 8.2 MB ). The second screenshot is clearly less noise, contrasting borders have become clearer and cleaner.
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Like the related audio codec Vorbis, the Theoraora video codec supports any quality and level of compression (from the size of a postage stamp to HD video), and at low bitrates it looks decent compared to its competitors. Of course, it can be used without any licensing fees and royalties, while the technology is completely open to all developers and thoroughly documented (190 pages of format specifications).
The existence of a free format is a critical element in order to guarantee the ability to freely create and share video files now and in the future. You can recode movies to Theora format using the ffmpeg2theora tool.
The new version greatly improved the quality of coding, a two-pass encoding function appeared, a faster decoder was made, video broadcasting over the Network was significantly improved: the possibility of ejection of individual frames if necessary was made, a more uniform load was made on the encoding CPU, etc. More about all the innovations can be found here and here .
Improved coding quality is visible to the naked eye. Below are screenshots from the Firefox advertising video ( original ). The first version is encoded with Theora 1.0 ( 9 MB ), and the second with the Theora 1.1 codec ( 8.2 MB ). The second screenshot is clearly less noise, contrasting borders have become clearer and cleaner.
')
Like the related audio codec Vorbis, the Theoraora video codec supports any quality and level of compression (from the size of a postage stamp to HD video), and at low bitrates it looks decent compared to its competitors. Of course, it can be used without any licensing fees and royalties, while the technology is completely open to all developers and thoroughly documented (190 pages of format specifications).
The existence of a free format is a critical element in order to guarantee the ability to freely create and share video files now and in the future. You can recode movies to Theora format using the ffmpeg2theora tool.
Source: https://habr.com/ru/post/70830/
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