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Tune x264 parameters to reduce resulting file size #3

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Tune x264 parameters to reduce resulting file size #3

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13 changes: 11 additions & 2 deletions src/videojitter/generate_video.py
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Original file line number Diff line number Diff line change
Expand Up @@ -71,6 +71,14 @@ def _parse_arguments():
),
default="5",
)
argument_parser.add_argument(
"--fastest-encoding",
help=(
"Enables fastest encoding speed (about 1.5x faster) at the expense of"
" generated file size (about 8x bigger)."
),
action="store_true",
)
return argument_parser.parse_args()


Expand Down Expand Up @@ -125,8 +133,9 @@ def color_input(color):
args.output_file,
**{
"shortest": None,
"profile:v": "baseline",
"preset": "ultrafast",
"profile:v": "baseline" if args.fastest_encoding else "main",
"preset": "ultrafast" if args.fastest_encoding else "superfast",
"x264-params": "" if args.fastest_encoding else "bframes=0",
# Make the video behave like typical HD video for compatibility and to
# ensure the video players behave similarly to a "real" video.
"pix_fmt": "yuv420p",
Expand Down