Changes between Version 11 and Version 12 of Encode/FFV1


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Timestamp:
Oct 31, 2017, 10:27:15 AM (17 months ago)
Author:
slhck
Comment:

add introduction

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  • Encode/FFV1

    v11 v12  
    11= FFV1 encoding cheatsheet =
     2
     3FFV1 is a video codec developed within FFmpeg. It is lossless, meaning that it compresses video without introducing quantization degradations. Therefore, FFV1 is a good choice for [https://www.loc.gov/preservation/digital/formats/fdd/fdd000341.shtml archiving and preservation]. A [http://compression.ru/video/codec_comparison/lossless_codecs_2007_en.html lossless codec comparison] found FFV1 to be the "most balanced", offering "relatively good speed and high compression".
     4
     5There are two versions of the codec supported by `ffmpeg`, version 1 and 3.
    26
    37== FFV1 version 1 ==
     
    1014
    1115=== Examples ===
    12 1. '''Copy audio "as-is" and use FFV1.1 as video codec. Audio stream kept as-is.'''
    13     Parameters are GOP-size=1, coder=1, context=1:
    14     {{{
    15     ffmpeg -i <input_video> \
    16         -acodec  copy       \
    17         -vcodec  ffv1       \
    18         -level   1          \
    19         -coder   1          \
    20         -context 1          \
    21         -g       1          \
    22         <output_video>
    23     }}}
     16
     17'''Copy audio "as-is" and use FFV1.1 as video codec. Audio stream kept as-is.'''
     18
     19Parameters are GOP-size=1, coder=1, context=1:
     20
     21{{{
     22ffmpeg -i <input_video> \
     23    -acodec  copy       \
     24    -vcodec  ffv1       \
     25    -level   1          \
     26    -coder   1          \
     27    -context 1          \
     28    -g       1          \
     29    <output_video>
     30}}}
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