#Ffmpeg h264 to avi mp4

The protocol defines how the streaming works. So it needs to start as soon as the smallest chunk is completed.

The playback receiver can't wait for the entire file to be downloaded before playing. But that's not necessarily true, some formats like Matroska can support a wide variety of codecs.Ī transport protocol in simplest term is the mechanism of how the container (the box) gets sent over network.

As a result, we often equate the box and content format to be synonymous. FFmpeg command line to encode a standard web video looks like this: ffmpeg -i inputfile.avi -codec:v libx264 -profile:v high -preset slow -b:v 500k -maxrate 500k -bufsize 1000k -vf scale-1:480 -threads 0 -codec:a libfdkaac -b:a 128k outputfile.mp4.

#Ffmpeg h264 to avi mp4

MP4 containers can hold AAC audio, but not Ogg Vorbis. So, you made all the hard choices and now its time to encode your video. There's some overlapping in naming because some containers (the box) limits the type of codecs (the content format) they can hold. People tend to think of them as files since container formats have names that match their file extensions.Ĭodec refers to the encoding format of the content inside the box (h.264, webm, MP3, AAC, PCM, etc). Video streams, audio streams, subtitles, chapter marks, etc. Is there some good 'for Dummies' page that can describe for me the relationship between a codec, a format, a container, and a transport protocol? Because my head hurts.Ī container (MP4, MKV, AVI, etc) is like a box for holding various content that plays together.