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MediaInfo is a free, cross-platform and open-source program that displays technical information about media files, as well as tag information for many audio and video files. It is used in many programs such as XMedia Recode, MediaCoder, eMule, and K-Lite Codec Pack. [4] It can be easily integrated into any program using a supplied MediaInfo.dll.
This allows the video encoder to choose among more than one previously decoded frame on which to base each macroblock in the next frame. While the best frame for this purpose is usually the previous frame, the extra reference frames can improve compression efficiency and/or video quality. Note that different reference frames can be chosen for ...
x264 is a free and open-source software library and a command-line utility developed by VideoLAN for encoding video streams into the H.264/MPEG-4 AVC video coding format. [2] It is released under the terms of the GNU General Public License .
x264 – H.264/MPEG-4 AVC implementation. x264 is not a codec (encoder/decoder); it is just an encoder (it cannot decode video). OpenH264 – H.264 baseline profile encoding and decoding OpenVVC [ 1 ] an VVC /H.266 Real Time - Decoder for Mac OS , Windows , Linux and Android and special Version of FFmpeg , [ 2 ] which was used for Ateme ...
It features two versions: a High 4:4:4 Predictive Profile capable encoder and a CAVLC 4:4:4 Intra Profile one. "VISENGI H.264 Encoder IP Core". Blackmagic Design launched, in 2011, a standalone H.264 hardware encoder that can encode in real time various bit rates and profiles up to 1080p60. Sources include SDI/HDSDI, YUV Component video and HDMI.
The device driver provides one or multiple interfaces, e. g. OpenMAX IL. One of these interfaces is then used by end-user software, like GStreamer or HandBrake (HandBrake rejected VCE support in December 2016, [ 48 ] but added it in December 2018 [ 49 ] ), to access the VCE hardware and make use of it.
In H.261, the first video codec to use macroblocks, transform blocks have a fixed size of 8×8 samples. [1] In the YCbCr color space with 4:2:0 chroma subsampling, a 16×16 macroblock consists of 16×16 luma (Y) samples and 8×8 chroma (Cb and Cr) samples. These samples are split into four Y blocks, one Cb block and one Cr block.
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.