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Diffstat (limited to 'doc/note/ffmpeg/ffmpeg.txt')
| -rw-r--r-- | doc/note/ffmpeg/ffmpeg.txt | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/doc/note/ffmpeg/ffmpeg.txt b/doc/note/ffmpeg/ffmpeg.txt index 072faa7..c992537 100644 --- a/doc/note/ffmpeg/ffmpeg.txt +++ b/doc/note/ffmpeg/ffmpeg.txt @@ -32,6 +32,18 @@ Use -codec:v copy to keep video, or -codec:v no for audio-only. -filter:a lowpass=f=16000 +## Fix Loudness war, bring bass back + + -af "equalizer=f=200:w=200:t=h:g=-9,equalizer=f=400:w=600:t=h:g=-9,equalizer=f=2000:w=2000:t=h:g=-12,equalizer=f=4000:w=4000:t=h:g=-12,equalizer=f=10000:w=10000:t=h:g=-12,volume=+0.0dB" + + +## Audio trim + +HINT: Repeat afade twice for log. + + -af "afade=t=in:d=500ms,afade=t=out:st=183427ms:d=500ms" \ + + ## Record Desktop ffmpeg -f gdigrab -framerate 6 -probesize 10M -offset_x 0 -offset_y 0 \ @@ -45,6 +57,13 @@ Use -codec:v copy to keep video, or -codec:v no for audio-only. -i INFILE -ss <pos> -to <pos> OUTFILE +## Concatenate + + && ffmpeg -i one.mkv -i two.mkv \ + -filter_complex '[0:v] [0:a] [1:v] [1:a] concat=n=2:v=1:a=1 [v] [a]' \ + -map "[v]" -map "[a]" out.mkv \ + + ## Rotate Portrait -i INFILE -vf "transpose=2" OUTFILE |