A non-compressed video format, such as the Apple ProRes format in 4K resolution, can reach a bitrate of 253.900 kbps and higher. The bitrate measurement is also applied to audio files.Īn Mp3 file, for example, can reach a maximum bitrate of 320 kilobit per second, while a standard CD (non-compressed) audio track can have up to 1.411 kilobit per second.Ī typical compressed h264 video in Full-HD has a bitrate in the range of 3.000 – 6.000 kbps, while a 4k video can reach a bitrate value up to 51.000 kbps. caf), WEBP (.webp).īITRATE: Bitrate or data rate is the amount of data per second in the encoded video file, usually expressed in kilobits per second (kbps) or megabits per second (Mbps). MP4 (.mp4), MKV (.mkv), WEBM (.webm), MOV (.mov), MXF (.mxf), ASF (.asf), MPEG Transport Stream (.ts), CAF (Core Audio Format. An encoder compress a source file with a particular algorithm: then a decoder can decompress and reproduce the resulting file.Ĭommon examples of video codecs are: MPEG-1, MPEG-2, H.264 (aka AVC), H.265 (aka HEVC), H.266 (aka VVC), VP8, VP9, AV1, or audio codecs such as Mp3, AAC, Opus, Ogg Vorbis, HE-AAC, Dolby Digital, FLAC, ALAC.ĮNCODE: The process to compress a file so to enable a faster transmission of data.ĭECODE: The function of a program or a device that translates encoded data into its original format.ĬONTAINER: Like a box that contains important objects, containers exist to allow multiple data streams, such as video, audio, subtitles and other data, to be embedded into a single file. The name is an acronym for the ‘ Bourne- Again SHell’, a pun on Stephen Bourne, the author of the direct ancestor of the current Unix shell “ sh“, which appeared in the 7th Edition Bell Labs Research version of Unix, in 1979.ĬODEC: A codec is the combination of two words en COder and DECoder. What is BASH?īASH: Bash is the shell, or command language interpreter, for Unix-like systems. The shell’s job, then, is to translate the user’s command lines into operating system instructions.įFMPEG will work with BASH commands. SHELL: Is a UNIX term for a user interface to the system: something that lets you communicate with the computer via the keyboard and the display thru direct instructions (Command Lines) rather than with a mouse and graphics and buttons. When you will use FFMPEG you will use a SHELL. #Ffmpeg h264 to mp4 preserving audio how to#If you ever wondered how the developers of YouTube or Vimeo cope with billions of video uploads or how Netflix processes its catalogue at scale or, again, if you want to discover how to create and develop your own video platform, FFMPEG is the right tool for you. It can convert, edit, rescale, extract, stream, post-process, equalize, colorize, segment, cut, copy, broadcast, squeeze, distort, and much much more. It’s used with a “Command-Line-Interface” (or CLI) and you won’t be able to use it with a common Graphic-User-Interface (or GUI).įFMPEG can do lots of things with video, images and audio in the fastest way possible. It supports the most obscure old formats up to the cutting edge, no matter if they were designed by some standards committee, the community or a corporation. FFMPEG is able to process pretty much anything that humans have created in the last 30 years or so, in terms of audio, video, data and pictures. #Ffmpeg h264 to mp4 preserving audio software#What is FFMPEG?įFMPEG is by definition a framework, which can be defined as a platform or a structure for developing software applications. Since its establishment by Leonardo Chiariglione and Hiroshi Yasuda, the Moving Pictures Experts Group has made an indelible mark on the transition from analog to digital video. Just a brief note on the word “ MPEG“: The Moving Picture Experts Group, MPEG, is a working group of authorities that was formed in 1988 by the standard organization ISO, The International Organization for Standardization, and IEC,the International Electrotechnical Commission, to set standards for audio and video compression and transmission. Used and trusted by giants such as YouTube, Netflix or Vimeo, FFMPEG has been developed and refined since December 2000, and continues to be refined, expanded and revised. FFMPEG is a creation of Fabrice Bellard and one of the fastest video and image processors on earth. In this post I will go thru some basic terms and basic concepts of FFMPEG, which by the way, stands for “ Fast- Forward- Moving- Picture- Experts- Group”. Welcome on the very first post of this Blog, which is dedicated to my first technical book “ FFMPEG – From Zero to Hero“, available here.
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