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Why would temporal compression be a necessary requirement to be called a video codec? Quite a few codecs in the "intra-frame only" section of this Wikipedia li

• IshKebab 4y ago
  It's a bit debatable but he definitely only did the image coding part of the video codec. All of those listed formats also support the metadata required for video. I was certainly expecting some motion coding.
• a-dub 4y ago
  some early implementations of mpeg-1 compressors only supported I frames. amusingly, this is still a valid mpeg-1 bitstream.
  • lmm 4y ago
    Not particularly strange, a lot of compression formats work like that. E.g. you can make a zip file at STORE level and there will be no actual compression.
  • Am4TIfIsER0ppos 4y ago
    You can do the same with a modern encoder too by setting the keyframe interval to 1 and "amusingly" the bitstream is still valid.
• userbinator 4y ago
  Because it is trivial to turn any image codec into a video codec by simply encoding each frame individually, and despite the article talking about temporal redundancy, doesn't actually attempt to show any code that deals with that.
  • randyrand 4y ago
    mjpeg is a popular video codec where each frame is jpeg compressed
    • erichocean 4y ago
      Nitpick: mjpeg is a video compression format, not a codec; the codec is plain old JPEG (which is not a temporal codec).