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Α video codec is software or a device that provides encoding and decoding for digital video, and which may or may not include the use of video compression and/or decompression.The compression may employ lossy data compression, so that quality-measurement issues become important.So long as the encoder component of the codec adheres to the specification it can choose any combination of these methods to apply different parts of the content.The decoder component of a codec that also conforms to the specification recognises each of the mechanisms used, and thus interprets the compressed stream to render it back into raw video for display (although this will not be identical to the raw video input unless the compression was lossless).Press-releases and amateur forums sometimes select sequences known to favor a particular codec or style of rate-control in reviews.Objective video evaluation techniques are mathematical models that seek to predict human judgments of picture quality, as often exemplified by the results of subjective quality assessment experiments.They are based on criteria and metrics that can be measured objectively and automatically evaluated by a computer program.
STOP specifying character Encoding=UTF-8 and character Set Results=UTF-8 in the jdbc connector,cause this will override character_set_client,character_set_connection,character_set_results to utf8 Solution two(don't need to restart My SQL): 1.change the table and column encoding to utf8mb4 2.specifying character Encoding=UTF-8 in the jdbc connector,cause the jdbc connector doesn't suport utf8mb4.TABLES AS T, information_schema.`COLLATION_CHARACTER_SET_APPLICABILITY` AS C WHERE C.collation_name = T.table_collation AND T.table_schema = 'YOURDB' AND (C. I certainly am in production so it turns out you do need to check over what has been done by above, since it sometimes does not work, here is reason and fix in this scenario: Question: the last ALTER TABLE command will convert the contents of all VARCHAR fields into valid, genuine UTF8 encoded string?I ask because I'm having problems converting my LATIN1 fields to UTF8, specifically when the ñ character is found, conversion directly fails due to an incorrect string value (error 1366). This means the last command simply must have made mysql lookup what the actual table definition was and because now the table was by default this the fields no longer need it - I presume they remained with the character set simply because during the dump of entire table updates it couldn't update it and hence it was left in that state Its mostly caused due to some unicode characters. To quickly fix this, I had to spot the character causing this error.The quality the codec can achieve is heavily based on the compression format the codec uses.A codec is not a format, and there may be multiple codecs that implement the same compression specification – for example, MPEG-1 codecs typically do not achieve quality/size ratio comparable to codecs that implement the more modern H.264 specification.
I'm inserting thousands of records, and I always get this error when the text contains \x F0 (i.e. permits only the Unicode characters that can be represented with 3 bytes in UTF-8.