def to_mp4(self) -> bytes:
with util.create_temp_file_path(suffix='.dat') as mp4_temp_path:
width = self.width
height = self.height
altered_dimensions = False
if self.width % 2 != 0:
width = self.width - 1
altered_dimensions = True
if self.height % 2 != 0:
height = self.height - 1
altered_dimensions = True
args = [
'-i', '{path}',
'-vcodec', 'libx264',
'-preset', 'slow',
'-crf', '22',
'-b:v', '200K',
'-profile:v', 'main',
'-pix_fmt', 'yuv420p',
'-acodec', 'aac',
'-f', 'mp4'
]
if altered_dimensions:
args += ['-filter:v', 'scale=\'%d:%d\'' % (width, height)]
self._execute(args + ['-y', mp4_temp_path])
with open(mp4_temp_path, 'rb') as mp4_temp:
return mp4_temp.read()
def to_webm(self) -> bytes:
with util.create_temp_file_path(suffix='.log') as phase_log_path:
# Pass 1
self._execute([
'-i', '{path}',
'-pass', '1',
'-passlogfile', phase_log_path,
'-vcodec', 'libvpx-vp9',
'-crf', '4',
'-b:v', '2500K',
'-acodec', 'libvorbis',
'-f', 'webm',
'-y', '/dev/null'
])
# Pass 2
return self._execute([
'-i', '{path}',
'-pass', '2',
'-passlogfile', phase_log_path,
'-vcodec', 'libvpx-vp9',
'-crf', '4',
'-b:v', '2500K',
'-acodec', 'libvorbis',
'-f', 'webm',
'-'
])
def to_mp4(self) -> bytes:
# I would like to know why making ffmpeg output to a tempfile is
# necessary here and not when converting webms for example
with util.create_temp_file_path(suffix=".dat") as mp4_temp_path:
_execute_ffmpeg(
self.content,
[
"-i",
"-",
"-vcodec",
"libx264",
"-preset",
"slow",
"-crf",
"22",
"-b:v",
"200K",
"-profile:v",
"main",
"-pix_fmt",
"yuv420p",
"-acodec",
"aac",
"-f",
"mp4",
"-y",
mp4_temp_path,
],
)
with open(mp4_temp_path, "rb") as data:
return data.read()
def to_webm(self) -> bytes:
with util.create_temp_file_path(suffix='.log') as phase_log_path:
# Pass 1
self._execute([
'-i', '{path}',
'-pass', '1',
'-passlogfile', phase_log_path,
'-vcodec', 'libvpx-vp9',
'-crf', '4',
'-b:v', '2500K',
'-acodec', 'libvorbis',
'-f', 'webm',
'-y', '/dev/null'
])
# Pass 2
return self._execute([
'-i', '{path}',
'-pass', '2',
'-passlogfile', phase_log_path,
'-vcodec', 'libvpx-vp9',
'-crf', '4',
'-b:v', '2500K',
'-acodec', 'libvorbis',
'-f', 'webm',
'-'
])
def to_mp4(self) -> bytes:
with util.create_temp_file_path(suffix='.dat') as mp4_temp_path:
width = self.width
height = self.height
altered_dimensions = False
if self.width % 2 != 0:
width = self.width - 1
altered_dimensions = True
if self.height % 2 != 0:
height = self.height - 1
altered_dimensions = True
args = [
'-i', '{path}',
'-vcodec', 'libx264',
'-preset', 'slow',
'-crf', '22',
'-b:v', '200K',
'-profile:v', 'main',
'-pix_fmt', 'yuv420p',
'-acodec', 'aac',
'-f', 'mp4'
]
if altered_dimensions:
args += ['-filter:v', 'scale=\'%d:%d\'' % (width, height)]
self._execute(args + ['-y', mp4_temp_path])
with open(mp4_temp_path, 'rb') as mp4_temp:
return mp4_temp.read()
def to_webm(self) -> bytes:
with util.create_temp_file_path(suffix=".log") as phase_log_path:
# Pass 1
_execute_ffmpeg(
self.content,
[
"-i",
"-",
"-pass",
"1",
"-passlogfile",
phase_log_path,
"-vcodec",
"libvpx-vp9",
"-crf",
"4",
"-b:v",
"2500K",
"-acodec",
"libvorbis",
"-f",
"webm",
"-y",
"/dev/null",
],
)
# Pass 2
return _execute_ffmpeg(
self.content,
[
"-i",
"-",
"-pass",
"2",
"-passlogfile",
phase_log_path,
"-vcodec",
"libvpx-vp9",
"-crf",
"4",
"-b:v",
"2500K",
"-acodec",
"libvorbis",
"-f",
"webm",
"-",
],
)
def to_mp4(self) -> bytes:
with util.create_temp_file_path(suffix=".dat") as mp4_temp_path:
width = self.width
height = self.height
altered_dimensions = False
if self.width % 2 != 0:
width = self.width - 1
altered_dimensions = True
if self.height % 2 != 0:
height = self.height - 1
altered_dimensions = True
args = [
"-i",
"{path}",
"-vcodec",
"libx264",
"-preset",
"slow",
"-crf",
"22",
"-b:v",
"200K",
"-profile:v",
"main",
"-pix_fmt",
"yuv420p",
"-acodec",
"aac",
"-f",
"mp4",
]
if altered_dimensions:
args += ["-filter:v", "scale='%d:%d'" % (width, height)]
self._execute(args + ["-y", mp4_temp_path])
with open(mp4_temp_path, "rb") as mp4_temp:
return mp4_temp.read()