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| -rw-r--r-- | transcode.sh.1 | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/transcode.sh.1 b/transcode.sh.1 index 8fe1e90..9a4c894 100644 --- a/transcode.sh.1 +++ b/transcode.sh.1 @@ -195,6 +195,32 @@ normalisation (e.g.\& The recommended output pixel format, automatically derived from the input to preserve chroma subsampling (4:2:0, 4:2:2, 4:4:4) and bit depth (8, 10, 12, 16\-bit). +.TP +.B input_frame_rate +The raw frame rate of the input video stream as reported by +.BR ffprobe (1), +expressed as a fraction (e.g.\& +.IR 30000/1001 , +.IR 25/1 , +.IR 60/1 ). +.TP +.B input_fps +The input frame rate rounded to the nearest integer (e.g.\& +.IR 30 , +.IR 25 , +.IR 60 ). +Derived from +.B input_frame_rate +and provided as a convenience for encoder heuristics that require a whole +number. +.TP +.B output_gop_size +The recommended GOP (Group of Pictures) size for the output, derived from +.B input_fps +as approximately five seconds of video (capped at 300 frames). +Use this in presets to set +.B \-g +for encoders that accept an explicit GOP size. .RE .IP Before the preset's |