def test_ensure_throws_exception_for_absent_video_codec_args(self):
with pytest.raises(ImportError) as excinfo:
# Fetch a list of args from the unffmpeg video codec handler
video_codec_handle = unffmpeg.VideoCodecHandle(
mkv_ffprobe.mkv_multiple_subtitles_ffprobe)
# Set the video codec to something that does not exist
video_codec_handle.set_video_codec('non_existent_codec')
def test_ensure_we_can_generate_video_codec_args(self):
# Fetch a list of args from the unffmpeg video codec handler
video_codec_handle = unffmpeg.VideoCodecHandle(mkv_ffprobe.mkv_multiple_subtitles_ffprobe)
video_codec_args = video_codec_handle.args()
# Assert the streams to map array is not empty
assert video_codec_args['streams_to_map']
# Assert the streams to encode array is not empty
assert video_codec_args['streams_to_encode']
def test_ensure_we_can_generate_hevc_video_codec_args(self):
# Fetch a list of args from the unffmpeg video codec handler
video_codec_handle = unffmpeg.VideoCodecHandle(mkv_ffprobe.mkv_multiple_subtitles_ffprobe)
# Set the video codec to HEVC
video_codec_handle.set_video_codec_with_default_encoder('hevc')
video_codec_args = video_codec_handle.args()
# Assert the streams to map array is not empty
assert video_codec_args['streams_to_map']
# Assert the streams to encode array is not empty
assert video_codec_args['streams_to_encode']
# Assert the streams to encode array is set to libx265
assert video_codec_args['streams_to_encode'][1] == 'libx265'
def test_ensure_we_can_generate_copy_current_video_codec_args(self):
# Fetch a list of args from the unffmpeg video codec handler
video_codec_handle = unffmpeg.VideoCodecHandle(mkv_ffprobe.mkv_multiple_subtitles_ffprobe)
# Just copy the current codec (do not re-encode)
video_codec_handle.disable_video_encoding = True
video_codec_args = video_codec_handle.args()
# Assert the streams to map array is not empty
assert video_codec_args['streams_to_map']
# Assert the streams to encode array is not empty
assert video_codec_args['streams_to_encode']
# Assert the streams to encode array is set to copy
assert video_codec_args['streams_to_encode'][1] == 'copy'
def test_ensure_args_of_video_stream_is_copied_if_src_codec_matches_dest_codec(self):
# Fetch a list of args from the unffmpeg video codec handler
video_codec_handle = unffmpeg.VideoCodecHandle(mkv_ffprobe.mkv_multiple_subtitles_ffprobe)
# Set the video codec to H264 the same as the current source video codec
video_codec_handle.set_video_codec_with_default_encoder('h264')
video_codec_args = video_codec_handle.args()
# Assert the streams to map array is not empty
assert video_codec_args['streams_to_map']
# Assert the streams to encode array is not empty
assert video_codec_args['streams_to_encode']
# Assert the streams to encode array is set to copy
assert video_codec_args['streams_to_encode'][1] == 'copy'
def generate_ffmpeg_args(self,):
# ffmpeg -i /library/XXXXX.mkv \
# -c:v libx265 \
# -map 0:0 -map 0:1 -map 0:1 \
# -c:a:0 copy \
# -c:a:1 libmp3lame -b:a:0 192k -ac 2 \
# -y /cache/XXXXX.mkv
#
# Read video information for the input file
file_probe = self.file_in['file_probe']
if not file_probe:
return False
# current_container = unffmpeg.containers.grab_module(self.settings.OUT_CONTAINER)
destination_container = unffmpeg.containers.grab_module(self.settings.OUT_CONTAINER)
# Suppress printing banner. (-hide_banner)
# Set loglevel to info ("-loglevel", "info")
# Allow experimental encoder config ("-strict", "-2")
#
command = ["-hide_banner", "-loglevel", "info", "-strict", "-2", "-max_muxing_queue_size", "512"]
# Read stream data
streams_to_map = []
streams_to_encode = []
# Set video encoding args
video_codec_handle = unffmpeg.VideoCodecHandle(file_probe)
if not self.settings.ENABLE_VIDEO_ENCODING:
video_codec_handle.disable_video_encoding = True
# Set video codec and encoder
video_codec_handle.video_codec = self.settings.VIDEO_CODEC
video_codec_handle.video_encoder = self.settings.VIDEO_STREAM_ENCODER
video_codec_args = video_codec_handle.args()
streams_to_map = streams_to_map + video_codec_args['streams_to_map']
streams_to_encode = streams_to_encode + video_codec_args['streams_to_encode']
# Set audio encoding args
audio_codec_handle = unffmpeg.AudioCodecHandle(file_probe)
if not self.settings.ENABLE_AUDIO_ENCODING:
audio_codec_handle.disable_audio_encoding = True
# Are we transcoding audio streams to a configured codec?
audio_codec_handle.enable_audio_stream_transcoding = self.settings.ENABLE_AUDIO_STREAM_TRANSCODING
audio_codec_handle.audio_codec_transcoding = self.settings.AUDIO_CODEC
audio_codec_handle.audio_encoder_transcoding = self.settings.AUDIO_STREAM_ENCODER
# Are we cloning audio streams to stereo streams?
audio_codec_handle.enable_audio_stream_stereo_cloning = self.settings.ENABLE_AUDIO_STREAM_STEREO_CLONING
audio_codec_handle.set_audio_codec_with_default_encoder_cloning(self.settings.AUDIO_CODEC_CLONING)
audio_codec_handle.audio_stereo_stream_bitrate = self.settings.AUDIO_STEREO_STREAM_BITRATE
# Fetch args
audio_codec_args = audio_codec_handle.args()
streams_to_map = streams_to_map + audio_codec_args['streams_to_map']
streams_to_encode = streams_to_encode + audio_codec_args['streams_to_encode']
# Set subtitle encoding args
subtitle_handle = unffmpeg.SubtitleHandle(file_probe, destination_container)
if self.settings.REMOVE_SUBTITLE_STREAMS:
subtitle_handle.remove_subtitle_streams = True
subtitle_args = subtitle_handle.args()
streams_to_map = streams_to_map + subtitle_args['streams_to_map']
streams_to_encode = streams_to_encode + subtitle_args['streams_to_encode']
# Map streams
command = command + streams_to_map
# Add arguments for creating streams
command = command + streams_to_encode
self._log(" ".join(command), level='debug')
return command
def generate_ffmpeg_args(self, file_probe, in_file, out_file):
# ffmpeg -i /library/XXXXX.mkv \
# -c:v libx265 \
# -map 0:0 -map 0:1 -map 0:1 \
# -c:a:0 copy \
# -c:a:1 libmp3lame -b:a:0 192k -ac 2 \
# -y /cache/XXXXX.mkv
#
# current_container = unffmpeg.containers.grab_module(self.settings['out_container'])
destination_container = unffmpeg.containers.grab_module(
self.settings['out_container'])
# Suppress printing banner. (-hide_banner)
# Set loglevel to info ("-loglevel", "info")
# Allow experimental encoder config ("-strict", "-2")
# Fix issue - 'Too many packets buffered for output stream 0:1' ("-max_muxing_queue_siz", "2048")
# REF: [https://trac.ffmpeg.org/ticket/6375]
#
main_options = ["-hide_banner", "-loglevel", "info", "-strict", "-2"]
# Configure Advanced options: https://ffmpeg.org/ffmpeg.html#Advanced-options
# These are added after the input file
advanced_options = ["-max_muxing_queue_size", "2048"]
command = []
# Hardware acceleration args
hardware_acceleration = unffmpeg.HardwareAccelerationHandle(file_probe)
if self.settings['enable_video_encoding']:
hardware_acceleration.video_encoder = self.settings[
'video_stream_encoder']
# Check if hardware decoding is enabled
if self.settings['enable_hardware_accelerated_decoding']:
hardware_acceleration.enable_hardware_accelerated_decoding = True
# The "Enable HW Decoding" checkbox is selected...
# Loop over available decoders to select the best match for the current settings...
for hardware_device in hardware_acceleration.get_hwaccel_devices():
# TODO: in the future perhaps add a feature to be able to select which decoder to use.
# First select the first one in the list (if nothing else matches, this one will be used)
if hardware_acceleration.hardware_device is None:
hardware_acceleration.hardware_device = hardware_device
# If we have enabled a HW accelerated encoder, then attempt to match the decoder with it.
hwaccel = hardware_acceleration.hardware_device.get('hwaccel')
if "vaapi" in self.settings[
'video_stream_encoder'] and hwaccel == "vaapi":
hardware_acceleration.hardware_device = hardware_device
break
elif "nvenc" in self.settings[
'video_stream_encoder'] and hwaccel == "cuda":
hardware_acceleration.hardware_device = hardware_device
break
continue
hardware_acceleration.set_hwaccel_args()
main_options = hardware_acceleration.update_main_options(main_options)
advanced_options = hardware_acceleration.update_advanced_options(
advanced_options)
# Read stream data
streams_to_map = []
streams_to_encode = []
# Set video encoding args
video_codec_handle = unffmpeg.VideoCodecHandle(file_probe)
if not self.settings['enable_video_encoding']:
video_codec_handle.disable_video_encoding = True
# Set video codec and encoder
video_codec_handle.video_codec = self.settings['video_codec']
video_codec_handle.video_encoder = self.settings[
'video_stream_encoder']
video_codec_args = video_codec_handle.args()
streams_to_map = streams_to_map + video_codec_args['streams_to_map']
streams_to_encode = streams_to_encode + video_codec_args[
'streams_to_encode']
# Set audio encoding args
audio_codec_handle = unffmpeg.AudioCodecHandle(file_probe)
if not self.settings['enable_audio_encoding']:
audio_codec_handle.disable_audio_encoding = True
# Are we transcoding audio streams to a configured codec?
audio_codec_handle.enable_audio_stream_transcoding = self.settings[
'enable_audio_stream_transcoding']
audio_codec_handle.audio_codec_transcoding = self.settings[
'audio_codec']
audio_codec_handle.audio_encoder_transcoding = self.settings[
'audio_stream_encoder']
# Are we cloning audio streams to stereo streams?
audio_codec_handle.enable_audio_stream_stereo_cloning = self.settings[
'enable_audio_stream_stereo_cloning']
audio_codec_handle.set_audio_codec_with_default_encoder_cloning(
self.settings['audio_codec_cloning'])
audio_codec_handle.audio_stereo_stream_bitrate = self.settings[
'audio_stereo_stream_bitrate']
# Fetch args
audio_codec_args = audio_codec_handle.args()
streams_to_map = streams_to_map + audio_codec_args['streams_to_map']
streams_to_encode = streams_to_encode + audio_codec_args[
'streams_to_encode']
# Set subtitle encoding args
subtitle_handle = unffmpeg.SubtitleHandle(file_probe,
destination_container)
if self.settings['remove_subtitle_streams']:
subtitle_handle.remove_subtitle_streams = True
subtitle_args = subtitle_handle.args()
streams_to_map = streams_to_map + subtitle_args['streams_to_map']
streams_to_encode = streams_to_encode + subtitle_args[
'streams_to_encode']
# Overwrite additional options
if self.settings['overwrite_additional_ffmpeg_options']:
advanced_options = self.settings[
'additional_ffmpeg_options'].split()
# Add main options to command
command = command + main_options
# Add input file
command = command + ['-i', in_file]
# Add advanced options to command
command = command + advanced_options
# Map streams
command = command + streams_to_map
# Add arguments for creating streams
command = command + streams_to_encode
# Add output file
command = command + ['-y', out_file]
return command