Changes between Initial Version and Version 1 of Ticket #1766, comment 11


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Timestamp:
Aug 24, 2021, 4:41:59 AM (5 years ago)
Author:
Agustín Dall'Alba

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  • Ticket #1766, comment 11

    initial v1  
    1 Thanks. Adding -qmin 1 -qmax 1 does seem to improve things but you can still clearly see blockiness in the background with the naked eye. I can't tell the difference with -g 1. There has to be a way for mpeg2video to deliver better quality than this.
     1Thanks. Adding -qmin 1 -qmax 1 does seem to improve things but you can still clearly see blockiness in the background with the naked eye. I can't tell the difference with or without -g 1. There has to be a way for mpeg2video to deliver better quality than this.
    22
    3 I don't have easy access to another MPEG-2 encoder, but ffmpeg's mpeg4 suffers the same with {{{ -q:v 1 -qmin 1 -qmax 1 }}} while libxvid preserves the film grain very well with nothing more than {{{ -q:v 1 }}}.
     3I don't have easy access to another MPEG-2 encoder, however ffmpeg's mpeg4 suffers the same with {{{ -q:v 1 -qmin 1 -qmax 1 }}} while libxvid preserves the film grain very well with nothing more than {{{ -q:v 1 }}}. This makes me think that something's not right with libavcodec's mpeg* encoders.
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    55Is there no way to encode MPEG-2 with ffmpeg and keep the film grain intact in this scene?