def startup_check(project: Project):
"""
Performing essential checks at startup_check
Set constant values
"""
if sys.version_info < (3, 6):
print('Python 3.6+ required')
sys.exit()
if sys.platform == 'linux':
def restore_term():
os.system("stty sane")
atexit.register(restore_term)
if not project.chunk_method:
select_best_chunking_method(project)
# project.is_vs = is_vapoursynth(project.input)
if project.is_vs:
project.chunk_method = 'vs_ffms2'
check_exes(project)
set_target_quality(project)
if project.reuse_first_pass and project.encoder != 'aom' and project.split_method != 'aom_keyframes':
print('Reusing the first pass is only supported with \
the aom encoder and aom_keyframes split method.')
terminate()
setup_encoder(project)
# No check because vvc
if project.encoder == 'vvc':
project.no_check = True
if project.encoder == 'svt_vp9' and project.passes == 2:
print("Implicitly changing 2 pass svt-vp9 to 1 pass\n2 pass svt-vp9 isn't supported")
project.passes = 1
project.audio_params = shlex.split(project.audio_params)
project.ffmpeg = shlex.split(project.ffmpeg)
project.pix_format = ['-strict', '-1', '-pix_fmt', project.pix_format]
project.ffmpeg_pipe = [*project.ffmpeg, *project.pix_format,
'-bufsize', '50000K', '-f', 'yuv4mpegpipe', '-']
def setup_encoder(project: Project):
"""
Setup encoder params and passes
:param project: the Project
"""
encoder = ENCODERS[project.encoder]
# validate encoder settings
settings_valid, error_msg = encoder.is_valid(project)
if not settings_valid:
print(error_msg)
terminate()
if project.passes is None:
project.passes = encoder.default_passes
project.video_params = encoder.default_args if project.video_params is None \
else shlex.split(project.video_params)
validate_inputs(project)