def add_silence_to_video(input: str, output: str, debug: bool = False) -> bool:
sh.sh(
'ffmpeg -f lavfi -y -i anullsrc=channel_layout=stereo:sample_rate=48000 -i '
+ sh.path(input) + ' -c:v copy -c:a aac -shortest ' + sh.path(output),
debug=debug)
return path.exists(output)
def flip_video_vertical(path_in: str,
path_out: str,
debug: bool = False) -> bool:
sh.sh('ffmpeg -y -i {} -vf vflip -c:a copy {}'.format(path_in, path_out),
debug=debug)
return path.exists(path_out)
def reencode(
path_in: str,
path_out: str,
fps: Optional[Union[int, float, str]] = None,
sar: Optional[str] = None,
resolution: Optional[str] = None,
debug: bool = False
) -> bool:
''' resolution and sar should be given in the following format: "x:y"
fps should be lower than the original value so frames don't freeze
'''
cmd = 'ffmpeg -y -i {}'.format(path_in)
if fps or sar:
cmd_filter = ''
if fps:
cmd_filter += 'fps={}'.format(fps)
if resolution:
if len(cmd_filter) > 0:
cmd_filter += ','
cmd_filter += 'scale={}'.format(resolution)
if sar:
if len(cmd_filter) > 0:
cmd_filter += ','
cmd_filter += 'setsar={}'.format(sar)
cmd += ' -filter:v ' + cmd_filter
sh.sh('{} {}'.format(cmd, path_out), debug=debug)
return path.exists(path_out)
def concat_videos_copy(in_paths: List[str],
out_path: str,
debug: bool = False) -> bool:
if len(in_paths) == 0:
return False
elif len(in_paths) == 1:
sh.cp(in_paths[0], out_path)
return True
temp_txt_path = path.join(kpath.folder_path_of_file(out_path),
'__temp_list.txt')
temp_txt_content = ''
for in_path in in_paths:
if len(temp_txt_content) > 0:
temp_txt_content += '\n'
temp_txt_content += 'file \'' + in_path + '\''
with open(temp_txt_path, 'w') as f:
f.write(temp_txt_content)
sh.sh('ffmpeg -y -f concat -safe 0 -i ' + sh.path(temp_txt_path) +
' -c copy ' + sh.path(out_path),
debug=debug)
kpath.remove(temp_txt_path)
return path.exists(out_path)
def create_video_from_images(input_folder: str,
output_file_path: str,
seconds_per_image: float = 3.0,
file_base_name: str = 'image',
file_extension: str = '.jpg',
debug: bool = False) -> bool:
start_number = 0
while True:
first_image_path = path.join(
input_folder,
file_base_name + '{:03d}'.format(start_number) + file_extension)
if path.exists(first_image_path):
break
start_number += 1
sh.sh('ffmpeg -y -framerate ' + str(1.0 / seconds_per_image) +
' -start_number ' + '{:03d}'.format(start_number) + ' -i ' +
path.join(input_folder, file_base_name + '%03d' + file_extension) +
' -pix_fmt yuv420p -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" ' +
output_file_path,
debug=debug)
return path.exists(output_file_path)
def concat_videos_reencode(in_paths: List[str],
out_path: str,
debug: bool = False) -> bool:
if len(in_paths) == 0:
return False
elif len(in_paths) == 1:
sh.cp(in_paths[0], out_path)
return path.exists(out_path)
cmd = 'ffmpeg -y'
for path_ in in_paths:
cmd += ' -i ' + sh.path(path_)
cmd += ' -filter_complex "'
for i in range(len(in_paths)):
cmd += '[{}:v] [{}:a] '.format(i, i)
cmd += 'concat=n={}:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" '.format(
len(in_paths)) + sh.path(out_path)
sh.sh(cmd, debug=debug)
return path.exists(out_path)
def convert_video_to_16_9(in_path: str,
out_path: str,
debug: bool = False) -> bool:
w, h = ffprobe.video_resolution(in_path)
if h is None or w is None:
return False
if h == 1080 and w == 1920:
sh.cp(in_path, out_path)
return True
if w / h < 16 / 9:
sh.sh(
'ffmpeg -y -i ' + sh.path(in_path) +
" -vf 'split[original][copy];[copy]scale=1920:-1,setsar=1:1,crop=h=1080,gblur=sigma=75[blurred];[original]scale=-1:1080[original_resized];[blurred][original_resized]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2' "
+ sh.path(out_path),
debug=debug)
else:
sh.sh(
'ffmpeg -y -i ' + sh.path(in_path) +
" -vf 'split[original][copy];[copy]scale=-1:1080,setsar=1:1,crop=w=1920,gblur=sigma=75[blurred];[original]scale=1920:-1[original_resized];[blurred][original_resized]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2' "
+ sh.path(out_path),
debug=debug)
return path.exists(out_path)
def trim(
in_path: str,
out_path: str,
start_seconds: float = 0,
stop_seconds: Optional[float] = None,
duration: Optional[float] = None,
reencode: bool = False,
debug: bool = False
) -> bool:
"""PASS EITHER 'stop_seconds' OR 'duration'
IF BOTH PASSED, 'duration' will be taken as preference
"""
if stop_seconds is None and duration is None:
print('Either, \'stop_seconds\' should e passed or \'duration\'')
return False
if duration is None:
duration = stop_seconds - start_seconds
sh.sh(
'ffmpeg -y -ss {} -i {} -t {} {} {}'.format(__seconds_to_time_str(start_seconds), sh.path(in_path), __seconds_to_time_str(duration), '-c copy -avoid_negative_ts make_zero' if reencode else '-async 1', sh.path(out_path)),
debug=debug
)
return path.exists(out_path)
def get_audio_from_video(path_in: str,
path_out: str,
debug: bool = False) -> bool:
sh.sh('ffmpeg -y -i {} -vn -acodec copy {}'.format(path_in, path_out),
debug=debug)
return path.exists(path_out)
def create_video_from_image(image_path: str,
output_file_path: str,
duration: float = 3.0,
fps: float = 30.0,
debug: bool = False) -> bool:
sh.sh('ffmpeg -y -loop 1 -framerate ' + str(fps) + ' -i ' + image_path +
' -t ' + str(duration) + ' -pix_fmt yuv420p ' + output_file_path,
debug=debug)
def reencode_aac(
path_in: str,
path_out: str,
debug: bool = False
) -> bool:
sh.sh('ffmpeg -y -i {} -codec:a aac {}'.format(path_in, path_out), debug=debug)
return path.exists(path_out)
def ts_to_mp4(
path_in: str,
path_out: str,
debug: bool = False
) -> bool:
sh.sh('ffmpeg -y -i {} -acodec copy -vcodec copy {}'.format(path_in, path_out), debug=debug)
return path.exists(path_out)
def loop(in_path: str,
out_path: str,
length_seconds: float,
debug: bool = False):
sh.sh('ffmpeg -y -stream_loop -1 -i ' + sh.path(in_path) + ' -t ' +
str(length_seconds) + ' ' + sh.path(out_path),
debug=debug)
return path.exists(out_path)
def reduce_audio_volume(path_in: str,
path_out: str,
volume: str = '0.25',
debug: bool = False) -> bool:
sh.sh('ffmpeg -y -i {} -filter:a "volume={}" {}'.format(
path_in, volume, path_out),
debug=debug)
return path.exists(path_out)
def mix_audios(audio_path_1: str,
audio_path_2: str,
path_out: str,
duration: str = 'longest',
debug: bool = False) -> bool:
sh.sh('ffmpeg -y -i {} -i {} -filter_complex amix=inputs=2:duration={} {}'.
format(audio_path_1, audio_path_2, duration, path_out),
debug=debug)
return path.exists(path_out)
def reencode_mp3(
path_in: str,
path_out: str,
debug: bool = False
) -> bool:
sh.sh(
'ffmpeg -y -i ' + path_in + ' -codec:a libmp3lame -qscale:a 2 ' + path_out, debug=debug
)
return path.exists(path_out)
def remove_audio(
input: str,
output: str,
debug: bool = False
) -> bool:
sh.sh(
'ffmpeg -y -i ' + sh.path(input) + ' -c copy -an ' + sh.path(output), debug=debug
)
return path.exists(output)
def __create_scene(in_path: str,
out_path: str,
start_ts: str,
duration: str,
debug: bool = False) -> bool:
sh.sh('ffmpeg -y -ss {} -t {} -i {} {} -async 1'.format(
start_ts, duration, in_path, out_path),
debug=debug)
return os.path.exists(out_path)
def __create_timestamp_file(in_path: str,
out_path: str,
threshold: float,
debug: bool = False) -> bool:
sh.sh(
'ffmpeg -y -i {} -filter:v "select=\'gt(scene,{})\',showinfo" -f null - 2> {}'
.format(in_path, threshold, out_path),
debug=debug)
return os.path.exists(out_path)
def concat(in_paths: List[str], out_path: str, debug: bool = False) -> Tuple[Optional[List[ConcatSongElement]], Optional[int]]:
song_elements = []
total_len = 0
for p in in_paths:
len_s = soxi.get_len(p)
song_elements.append(ConcatSongElement(p, total_len, total_len + len_s))
total_len += len_s
sh.sh('sox {} {}'.format(' '.join([sh.path(p) for p in in_paths]), sh.path(out_path)), debug=debug)
return (song_elements, total_len) if os.path.exists(out_path) else (None, None)
def mix_audios(audio_path_1: str,
audio_path_2: str,
path_out: str,
duration: Optional[str] = 'longest',
debug: bool = False) -> bool:
cmd = 'ffmpeg -y -i {} -i {} -filter_complex amix=inputs=2'.format(
audio_path_1, audio_path_2)
if duration:
cmd += ':duration={}'.format(duration)
cmd += ' ' + path_out
sh.sh(cmd, debug=debug)
return path.exists(path_out)
def add_audio_to_video(input_a: str,
input_v: str,
output: str,
reencode: bool = False,
debug: bool = False) -> bool:
cmd = 'ffmpeg -y -i ' + sh.path(input_v) + ' -i ' + sh.path(input_a)
if not reencode:
cmd += ' -c:v copy -map 0:v:0 -map 1:a:0'
cmd += ' -shortest ' + sh.path(output)
sh.sh(cmd, debug=debug)
return path.exists(output)
def add_silence_to_video(input: str,
output: str,
sample_rate: int = 48000,
duration: str = 'shortest',
debug: bool = False) -> bool:
cmd = 'ffmpeg -f lavfi -y -i anullsrc=channel_layout=stereo:sample_rate={} -i {} -c:v copy -c:a aac '.format(
sample_rate, sh.path(input))
if duration == 'shortest':
cmd += '-shortest '
cmd += sh.path(output)
sh.sh(cmd, debug=debug)
return path.exists(output)
def get_stats(path: str, debug: bool = False) -> Optional[SoxStats]:
try:
return SoxStats(sh.sh('sox {} -n stat'.format(path), debug=debug))
except Exception as e:
if debug:
print(e)
return None
def mix_multiple_audios(audio_paths: List[str],
path_out: str,
duration: Optional[str] = 'longest',
debug: bool = False) -> bool:
cmd = 'ffmpeg -y'
for audio_path in audio_paths:
cmd += ' -i ' + sh.path(audio_path)
cmd += ' -filter_complex amix=inputs=' + str(len(audio_paths))
if duration:
cmd += ':duration={}'.format(duration)
cmd += ' ' + path_out
sh.sh(cmd, debug=debug)
return path.exists(path_out)
def get_duration(video_path: str) -> float:
res = sh.sh(
'ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 ' + sh.path(video_path)
)
try:
return float(res.strip())
except:
return 0
def rotate_video(path_in: str,
path_out: str,
times_90_degrees: int,
debug: bool = False) -> bool:
times_90_degrees = times_90_degrees % 4
rot_val = 1 if times_90_degrees > 0 else 2
if times_90_degrees == 0:
sh.cp(path_in, path_out)
else:
sh.sh('ffmpeg -y -i {} -vf "{}" {}'.format(
sh.path(path_in), ','.join([
'transpose={}'.format(rot_val) for _ in range(times_90_degrees)
]), sh.path(path_out)),
debug=debug)
return path.exists(path_out)
def get_size(video_path: str) -> Optional[Tuple[int, int]]:
res = sh.sh(
'ffprobe -v error -show_entries stream=width,height -of default=noprint_wrappers=1 {}'.format(video_path)
).strip()
try:
comps = [c.split('=')[1] for c in res.split('\n')]
return (int(comps[0]), int(comps[1]))
except:
return None
def get_frame(at_second: float,
p_video_in: str,
p_img_out: str,
debug: bool = False) -> bool:
res = sh.sh('ffmpeg -ss {} -i {} -frames:v 1 {}'.format(
at_second, p_video_in, p_img_out),
debug=debug)
if debug:
print(res)
return path.exists(p_img_out)
def modify_audio(
path_in: str,
path_out: str,
channels: Optional[int] = None, # 2
audio_rate: Optional[int] = None, # 44100
bit_rate: Optional[int] = None, # 133
debug: bool = False) -> bool:
cmd = 'ffmpeg -y -i {}'.format(path_in)
if channels:
cmd += ' -ac {}'.format(channels)
if audio_rate:
cmd += ' -ar {}'.format(audio_rate)
if bit_rate:
cmd += ' -ab {}'.format(bit_rate)
cmd += ' {}'.format(path_out)
sh.sh(cmd, debug=debug)
return path.exists(path_out)