def encode():
# Configure objetcts
config = util.Config('config.json')
sl = util.check_system()['sl']
# Create video object and your main folders
video = util.VideoParams(config=config,
yuv=f'..{sl}yuv-full',
hevc_base='hevc',
mp4_base='mp4',
segment_base='segment',
dectime_base='dectime')
# Set basic configuration
video.encoder = 'ffmpeg'
video.project = 'ffmpeg_crf_18videos_60s'
video.factor = 'crf'
# iterate over 3 factors: video (complexity), tiles format, quality
for video.name in config.videos_list:
for video.tile_format in config.tile_list:
for video.quality in getattr(config, f'{video.factor}_list'):
util.encode(video)
# util.encapsule(video)
# util.extract_tile(video)
util.make_segments(video)
def encode():
# Create video object and your main folders
video = util.VideoParams(config=cfg, yuv=yuv_input)
# Set basic configuration
video.encoder = 'ffmpeg'
video.project = output
# iterate over 3 factors: video (complexity), tiles format, quality
for video.name in cfg.videos_list:
for video.tile_format in cfg.tile_list:
for video.quality in getattr(cfg, f'{video.factor}_list'):
# util.encode(video)
# util.encapsule(video)
# util.extract_tile(video)
util.make_segments(video)
def encode():
config = util.Config('config.json')
sl = util.check_system()['sl']
video = util.VideoParams(config=config,
yuv=f'..{sl}yuv-full',
hevc_base='hevc',
mp4_base='mp4',
segment_base='segment',
dectime_base='dectime',
project='ffmpeg-60s-qp',
encoder='ffmpeg',
factor='crf')
# for video.name in config.videos_list:
for video.name in ['om_nom', 'rollercoaster']:
for video.tile_format in config.tile_list:
for video.quality in getattr(config, f'{video.factor}_list'):
util.encode(video)
def main():
# Cria objeto "video" com suas principais pastas
video = util.VideoParams(config=config, yuv=yuv_folder)
# Configura objeto VideoParams
video.project = output_folder
video.factor = config.factor
video.decoder = 'ffmpeg'
video.threads = 'single'
video.quality_list = config.quality_list
video.dectime_base = f'dectime_{video.decoder}'
# para cada video, para cada fmt, para cada qualidade... decodificar 3
# vezes todos os chunks de todos os tiles.
for video.name in config.videos_list:
for video.tile_format in config.tile_list:
for video.rodada in range(3):
for video.quality in video.quality_list:
util.decode(video=video)
def decode():
# Configura os objetos
config = util.Config('config.json')
# Cria objeto "video" com suas principais pastas
video = util.VideoParams(config=config, yuv=f'..{sl}yuv-10s')
video.project = 'ffmpeg'
decoders = ['ffmpeg', 'mp4client']
threads = ['single'] # 'single' or 'multi'
factor = ['rate', 'qp']
for (video.decoder, video.name, video.tile_format, video.factor,
video.threads) in itertools.product(decoders, config.videos_list,
config.tile_list, factor,
threads):
video.dectime_base = f'dectime_{video.decoder}'
video.quality_list = getattr(config, f'{video.factor}_list')
for video.quality in video.quality_list:
util.decode(video=video)
import subprocess
from utils import util
config = util.Config('config.json')
sl = util.check_system()['sl']
video = util.VideoParams(config)
config.duration = '60'
original = f'..{sl}original'
yuv_forders_10s = f'..{sl}yuv-10s'
yuv_forders_60s = f'..{sl}yuv-full'
util.makedir(f'{yuv_forders_10s}')
util.makedir(f'{yuv_forders_60s}')
scale = config.scale
fps = config.fps
for name in config.videos_list:
start_time = config.videos_list[name]['time']
out_name = f'{name}_{scale}_{fps}.yuv'
in_name = f'{original}{sl}{name}.mp4'
par_in = f'-y -hide_banner -v quiet -ss {start_time} -i {in_name}'
par_out_10s = f'-t 10 -r {fps} -vf scale={scale} -map 0:0 ..{sl}yuv-10s{sl}{out_name}'
command = f'ffmpeg {par_in} {par_out_10s}'
print(command)
subprocess.run(command, shell=True, stderr=subprocess.STDOUT)
par_out_60s = f'-t 60 -r {fps} -vf scale={scale} -map 0:0 ..{sl}yuv-full{sl}{out_name}'