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video-to-gif
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Various improvements

This commit is contained in:
Amber McCloughan 2024-06-28 22:58:29 -04:00
parent d028085a64
commit ed99983cc2
1 changed files with 23 additions and 16 deletions
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35
gifmake.py
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@ -11,20 +11,26 @@ from typing import Any, Dict, List
def get_args() -> Dict[str, Any]: def get_args() -> Dict[str, Any]:
parser = argparse.ArgumentParser( parser = argparse.ArgumentParser(
prog='GIF Make', prog='GIF Make',
description='Use ffmpeg to make GIFs from videos', description='Use ffmpeg to make GIFs from videos',
epilog='— Be gay and do crime') epilog='— Be gay and do crime')
parser.add_argument('-i', '--input', type=str, required=True, help="Input pattern like '/users/MyName/Videos/*.mov'") parser.add_argument('-i', '--input', type=str, required=True,
parser.add_argument('-w', '--width', type=str, default='960', help='Width of the GIF in pixels, respecting aspect ratio') help="Input pattern like '/users/MyName/Videos/*.mov'")
parser.add_argument('-r', '--framerate', type=str, default='12', help='Framerate of GIF') parser.add_argument('-w', '--width', type=str, default='960',
parser.add_argument('-t', '--tag', type=str, default=get_tag(), help='Optional tag included in file name') help='Width of the GIF in pixels, respecting aspect ratio')
parser.add_argument('-f', '--force_palette', action='store_const', const=True, help='Force regeneration of GIF color palettes') parser.add_argument('-r', '--framerate', type=str,
parser.add_argument('-c', '--clean_up', action='store_const', const=True, help='Delete color palettes after finishing GIFs') default='12', help='Framerate of GIF')
parser.add_argument('-t', '--tag', type=str, default=get_tag(),
help='Optional tag included in file name')
parser.add_argument('-f', '--force_palette', action='store_const',
const=True, help='Force regeneration of GIF color palettes')
parser.add_argument('-c', '--clean_up', action='store_const',
const=True, help='Delete color palettes after finishing GIFs')
return vars(parser.parse_args()) return vars(parser.parse_args())
def get_tag() -> str: def get_tag() -> str:
return ''.join(random.choices(string.ascii_uppercase + string.digits, k = 5)) return ''.join(random.choices(string.ascii_uppercase + string.digits, k=5))
def get_inputs(args: Dict[str, Any]) -> List[str]: def get_inputs(args: Dict[str, Any]) -> List[str]:
@ -38,8 +44,7 @@ def clean_up_palette_files(palette_map: Dict[str, str]) -> None:
def call_ffmpeg(command: str) -> str: def call_ffmpeg(command: str) -> str:
print("ffmpeg", *command.split(' ')) print("ffmpeg", *command.split(' '))
# If we want to silence the command output: stdout=open(os.devnull, 'wb') return str(subprocess.run(["ffmpeg", '-hide_banner', '-loglevel', 'error', *command.split(' ')]))
return str(subprocess.run(["ffmpeg", *command.split(' ')]))
def generate_palette_files_and_map(inputs: List[str], args: Dict[str, Any]) -> Dict[str, str]: def generate_palette_files_and_map(inputs: List[str], args: Dict[str, Any]) -> Dict[str, str]:
@ -52,7 +57,8 @@ def generate_palette_files_and_map(inputs: List[str], args: Dict[str, Any]) -> D
file_name = f"{Path(input).stem}_{tag}_palette.png" file_name = f"{Path(input).stem}_{tag}_palette.png"
full_path = f"{Path(input).parent}/{file_name}" full_path = f"{Path(input).parent}/{file_name}"
if force_palette or not os.path.exists(full_path): if force_palette or not os.path.exists(full_path):
call_ffmpeg(f"-i {input} -lavfi scale={width}:-1,palettegen -sws_flags ewa_lanczos -y {full_path}") call_ffmpeg(
f"-i {input} -lavfi scale={width}:-1,palettegen -sws_flags ewa_lanczos -y {full_path}")
else: else:
print(f"Skipped regenerating palette file {file_name}...") print(f"Skipped regenerating palette file {file_name}...")
palette_map[input] = full_path palette_map[input] = full_path
@ -70,7 +76,8 @@ def generate_gif_files(palette_map: Dict[str, str], args: Dict[str, Any]) -> Dic
palette = palette_map[input] palette = palette_map[input]
file_name = f"{Path(input).stem}_{tag}.gif" file_name = f"{Path(input).stem}_{tag}.gif"
full_path = f"{Path(input).parent}/{file_name}" full_path = f"{Path(input).parent}/{file_name}"
call_ffmpeg(f"-i {input} -i {palette} -f gif -r {framerate} -lavfi scale={width}:-1,paletteuse -sws_flags ewa_lanczos {full_path}") call_ffmpeg(f"-i {input} -i {palette} -f gif -r {framerate} -lavfi scale={ \
width}:-1,paletteuse -sws_flags ewa_lanczos {full_path}")
output_map[input] = full_path output_map[input] = full_path
return output_map return output_map