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| author | Sacha Chua <sacha@sachachua.com> | 2020-12-12 09:32:18 -0500 |
|---|---|---|
| committer | Sacha Chua <sacha@sachachua.com> | 2020-12-12 09:32:18 -0500 |
| commit | 88cedc543d23f72c8480ef2d6e05feb289655da0 (patch) | |
| tree | 1b4c1f25c7b1adabc8b71b25cf35ba958e7b81bc /2020/organizers-notebook.md | |
| parent | 3855bd8f030ea2db95bd418488852c6be29edcb1 (diff) | |
| download | emacsconf-wiki-88cedc543d23f72c8480ef2d6e05feb289655da0.tar.xz emacsconf-wiki-88cedc543d23f72c8480ef2d6e05feb289655da0.zip | |
Tweak -g parameter for ffmpeg
Diffstat (limited to '2020/organizers-notebook.md')
| -rw-r--r-- | 2020/organizers-notebook.md | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/2020/organizers-notebook.md b/2020/organizers-notebook.md index 8eb0f4d1..746fe36a 100644 --- a/2020/organizers-notebook.md +++ b/2020/organizers-notebook.md @@ -747,10 +747,10 @@ Another collaborative pad ### Encode highly-compressed versions -[Compressing video](#org146ffca) +[Compressing video](#org40410d1) -<a id="org146ffca"></a> +<a id="org40410d1"></a> ### Compressing video @@ -759,8 +759,8 @@ Thanks to ArneBab for this ffmpeg script which is now documented in [Extreme com Usage: compress-video.sh input-filename.webm output-filename.webm Q=56 - nice ffmpeg -y -i $1 -c:v libvpx-vp9 -b:v 0 -crf $Q -aq-mode 2 -an -tile-columns 0 -tile-rows 0 -frame-parallel 0 -cpu-used 8 -auto-alt-ref 1 -lag-in-frames 25 -g 999 -pass 1 -f webm -threads 8 /dev/null && - nice ffmpeg -y -i $1 -c:v libvpx-vp9 -b:v 0 -crf $Q -c:a copy -tile-columns 2 -tile-rows 2 -frame-parallel 0 -cpu-used -5 -auto-alt-ref 1 -lag-in-frames 25 -pass 2 -g 999 -threads 8 $2 + nice ffmpeg -y -i $1 -c:v libvpx-vp9 -b:v 0 -crf $Q -aq-mode 2 -an -tile-columns 0 -tile-rows 0 -frame-parallel 0 -cpu-used 8 -auto-alt-ref 1 -lag-in-frames 25 -g 240 -pass 1 -f webm -threads 8 /dev/null && + nice ffmpeg -y -i $1 -c:v libvpx-vp9 -b:v 0 -crf $Q -c:a copy -tile-columns 2 -tile-rows 2 -frame-parallel 0 -cpu-used -5 -auto-alt-ref 1 -lag-in-frames 25 -pass 2 -g 240 -threads 8 $2 Here's the original version which compresses audio too. Usage: compress-video-compressed-audio.sh input-filename.webm output-filename.webm |