Merge pull request #2726 from lbryio/add_video_transcoding

added video file validation and optimization when publishing streams (using `--validate_file` and `--optimize_file` arguments)
This commit is contained in:
Lex Berezhny 2020-02-03 22:29:15 -05:00 committed by GitHub
commit d745c04fe6
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 612 additions and 6 deletions

2
.gitignore vendored
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@ -5,6 +5,7 @@
/.tox
/.coverage*
/lbry-venv
/venv
lbry.egg-info
__pycache__
@ -14,4 +15,3 @@ _trial_temp/
/tests/.coverage.*
/lbry/wallet/bin
/venv

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@ -46,6 +46,8 @@ test:datanetwork-integration:
test:blockchain-integration:
stage: test
script:
- apt-get update
- apt-get install -y --no-install-recommends ffmpeg
- pip install tox-travis
- tox -e blockchain

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@ -462,7 +462,20 @@ class BaseConfig:
self.persisted.save()
class CLIConfig(BaseConfig):
class TranscodeConfig(BaseConfig):
ffmpeg_folder = String('The path to ffmpeg and ffprobe', '')
video_encoder = String('FFmpeg codec and parameters for the video encoding. '
'Example: libaom-av1 -crf 25 -b:v 0 -strict experimental',
'libx264 -crf 18 -vf "format=yuv420p"')
audio_encoder = String('FFmpeg codec and parameters for the audio encoding. '
'Example: libopus -b:a 128k',
'aac -b:a 192k')
volume_filter = String('FFmpeg filter for audio normalization.', '-af loudnorm')
volume_analysis_time = Integer('Maximum seconds into the file that we examine audio volume (0 to disable).', '240')
class CLIConfig(TranscodeConfig):
api = String('Host name and port for lbrynet daemon API.', 'localhost:5279', metavar='HOST:PORT')

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@ -3,6 +3,7 @@ import sys
import shutil
import signal
import pathlib
import platform
import json
import asyncio
import argparse
@ -262,6 +263,9 @@ def setup_logging(logger: logging.Logger, args: argparse.Namespace, conf: Config
def run_daemon(args: argparse.Namespace, conf: Config):
if sys.version_info < (3, 8) and platform.system() == "Windows":
# TODO: remove after we move to requiring Python 3.8
asyncio.set_event_loop(asyncio.ProactorEventLoop())
loop = asyncio.get_event_loop()
if args.verbose is not None:
loop.set_debug(True)

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@ -44,6 +44,7 @@ from lbry.extras.daemon.componentmanager import ComponentManager
from lbry.extras.daemon.json_response_encoder import JSONResponseEncoder
from lbry.extras.daemon import comment_client
from lbry.extras.daemon.undecorated import undecorated
from lbry.file_analysis import VideoFileAnalyzer
from lbry.schema.claim import Claim
from lbry.schema.url import URL
@ -296,6 +297,7 @@ class Daemon(metaclass=JSONRPCServerType):
def __init__(self, conf: Config, component_manager: typing.Optional[ComponentManager] = None):
self.conf = conf
self._video_file_analyzer = VideoFileAnalyzer(conf)
self._node_id = None
self._installation_id = None
self.session_id = base58.b58encode(utils.generate_id()).decode()
@ -851,6 +853,7 @@ class Daemon(metaclass=JSONRPCServerType):
"""
connection_code = await self.get_connection_status()
ffmpeg_status = await self._video_file_analyzer.status()
response = {
'installation_id': self.installation_id,
@ -861,6 +864,7 @@ class Daemon(metaclass=JSONRPCServerType):
'code': connection_code,
'message': CONNECTION_MESSAGES[connection_code],
},
'ffmpeg_status': ffmpeg_status
}
for component in self.component_manager.components:
status = await component.get_status()
@ -2808,6 +2812,7 @@ class Daemon(metaclass=JSONRPCServerType):
Usage:
publish (<name> | --name=<name>) [--bid=<bid>] [--file_path=<file_path>]
[--validate_file] [--optimize_file]
[--fee_currency=<fee_currency>] [--fee_amount=<fee_amount>] [--fee_address=<fee_address>]
[--title=<title>] [--description=<description>] [--author=<author>]
[--tags=<tags>...] [--languages=<languages>...] [--locations=<locations>...]
@ -2823,6 +2828,11 @@ class Daemon(metaclass=JSONRPCServerType):
--name=<name> : (str) name of the content (can only consist of a-z A-Z 0-9 and -(dash))
--bid=<bid> : (decimal) amount to back the claim
--file_path=<file_path> : (str) path to file to be associated with name.
--validate_file : (bool) validate that the video container and encodings match
common web browser support or that optimization succeeds if specified.
FFmpeg is required
--optimize_file : (bool) transcode the video & audio if necessary to ensure
common web browser support. FFmpeg is required
--fee_currency=<fee_currency> : (string) specify fee currency
--fee_amount=<fee_amount> : (decimal) content download fee
--fee_address=<fee_address> : (str) address where to send fee payments, will use
@ -2994,12 +3004,13 @@ class Daemon(metaclass=JSONRPCServerType):
self, name, bid, file_path, allow_duplicate_name=False,
channel_id=None, channel_name=None, channel_account_id=None,
account_id=None, wallet_id=None, claim_address=None, funding_account_ids=None,
preview=False, blocking=False, **kwargs):
preview=False, blocking=False, validate_file=False, optimize_file=False, **kwargs):
"""
Make a new stream claim and announce the associated file to lbrynet.
Usage:
stream_create (<name> | --name=<name>) (<bid> | --bid=<bid>) (<file_path> | --file_path=<file_path>)
[--validate_file] [--optimize_file]
[--allow_duplicate_name=<allow_duplicate_name>]
[--fee_currency=<fee_currency>] [--fee_amount=<fee_amount>] [--fee_address=<fee_address>]
[--title=<title>] [--description=<description>] [--author=<author>]
@ -3016,6 +3027,11 @@ class Daemon(metaclass=JSONRPCServerType):
--name=<name> : (str) name of the content (can only consist of a-z A-Z 0-9 and -(dash))
--bid=<bid> : (decimal) amount to back the claim
--file_path=<file_path> : (str) path to file to be associated with name.
--validate_file : (bool) validate that the video container and encodings match
common web browser support or that optimization succeeds if specified.
FFmpeg is required
--optimize_file : (bool) transcode the video & audio if necessary to ensure
common web browser support. FFmpeg is required
--allow_duplicate_name=<allow_duplicate_name> : (bool) create new claim even if one already exists with
given name. default: false.
--fee_currency=<fee_currency> : (string) specify fee currency
@ -3107,6 +3123,8 @@ class Daemon(metaclass=JSONRPCServerType):
f"Use --allow-duplicate-name flag to override."
)
file_path = await self._video_file_analyzer.verify_or_repair(validate_file, optimize_file, file_path)
claim = Claim()
claim.stream.update(file_path=file_path, sd_hash='0' * 96, **kwargs)
tx = await Transaction.claim_create(

355
lbry/file_analysis.py Normal file
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@ -0,0 +1,355 @@
import asyncio
import json
import logging
import os
import pathlib
import re
import shlex
import shutil
from lbry.conf import TranscodeConfig
log = logging.getLogger(__name__)
class VideoFileAnalyzer:
def __init__(self, conf: TranscodeConfig):
self._conf = conf
self._available_encoders = ""
self._ffmpeg_installed = False
self._which = None
async def _execute(self, command, arguments):
args = shlex.split(arguments)
process = await asyncio.create_subprocess_exec(self._conf.ffmpeg_folder + command, *args,
stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.PIPE)
stdout, stderr = await process.communicate() # returns when the streams are closed
return stdout.decode() + stderr.decode(), process.returncode
async def _verify_executable(self, name):
try:
version, code = await self._execute(name, "-version")
except Exception as e:
log.warning("Unable to run %s, but it was requested. Message: %s", name, str(e))
code = -1
version = ""
if code != 0 or not version.startswith(name):
raise FileNotFoundError(f"Unable to locate or run {name}. Please install FFmpeg "
f"and ensure that it is callable via PATH or conf.ffmpeg_folder")
return version
async def _verify_ffmpeg_installed(self):
if self._ffmpeg_installed:
return
await self._verify_executable("ffprobe")
version = await self._verify_executable("ffmpeg")
self._which = shutil.which(f"{self._conf.ffmpeg_folder}ffmpeg")
self._ffmpeg_installed = True
log.debug("Using %s at %s", version.splitlines()[0].split(" Copyright")[0], self._which)
async def status(self, reset=False):
if reset:
self._available_encoders = ""
self._ffmpeg_installed = False
self._which = None
installed = True
try:
await self._verify_ffmpeg_installed()
except FileNotFoundError:
installed = False
return {
"available": installed,
"which": self._which,
"analyze_audio_volume": int(self._conf.volume_analysis_time) > 0
}
@staticmethod
def _verify_container(scan_data: json):
container = scan_data["format"]["format_name"]
log.debug(" Detected container is %s", container)
if not {"webm", "mp4", "3gp", "ogg"}.intersection(container.split(",")):
return "Container format is not in the approved list of WebM, MP4. " \
f"Actual: {container} [{scan_data['format']['format_long_name']}]"
return ""
@staticmethod
def _verify_video_encoding(scan_data: json):
for stream in scan_data["streams"]:
if stream["codec_type"] != "video":
continue
codec = stream["codec_name"]
log.debug(" Detected video codec is %s, format is %s", codec, stream["pix_fmt"])
if not {"h264", "vp8", "vp9", "av1", "theora"}.intersection(codec.split(",")):
return "Video codec is not in the approved list of H264, VP8, VP9, AV1, Theora. " \
f"Actual: {codec} [{stream['codec_long_name']}]"
if "h264" in codec.split(",") and stream["pix_fmt"] != "yuv420p":
return "Video codec is H264, but its pixel format does not match the approved yuv420p. " \
f"Actual: {stream['pix_fmt']}"
return ""
@staticmethod
def _verify_bitrate(scan_data: json):
if "bit_rate" not in scan_data["format"]:
return ""
bit_rate = float(scan_data["format"]["bit_rate"])
log.debug(" Detected bitrate is %s Mbps", str(bit_rate / 1000000.0))
pixels = -1.0
for stream in scan_data["streams"]:
if stream["codec_type"] == "video":
pieces = stream["r_frame_rate"].split('/', 1)
frame_rate = float(pieces[0]) if len(pieces) == 1 \
else float(pieces[0]) / float(pieces[1])
pixels = max(pixels, float(stream["height"]) * float(stream["width"]) * frame_rate)
if pixels > 0.0 and pixels / bit_rate < 3.0:
return "Bits per second is excessive for this data; this may impact web streaming performance. " \
f"Actual: {str(bit_rate / 1000000.0)} Mbps"
return ""
async def _verify_fast_start(self, scan_data: json, video_file):
container = scan_data["format"]["format_name"]
if {"webm", "ogg"}.intersection(container.split(",")):
return ""
result, _ = await self._execute("ffprobe", f'-v debug "{video_file}"')
iterator = re.finditer(r"\s+seeks:(\d+)\s+", result)
for match in iterator:
if int(match.group(1)) != 0:
return "Video stream descriptors are not at the start of the file (the faststart flag was not used)."
return ""
@staticmethod
def _verify_audio_encoding(scan_data: json):
for stream in scan_data["streams"]:
if stream["codec_type"] != "audio":
continue
codec = stream["codec_name"]
log.debug(" Detected audio codec is %s", codec)
if not {"aac", "mp3", "flac", "vorbis", "opus"}.intersection(codec.split(",")):
return "Audio codec is not in the approved list of AAC, FLAC, MP3, Vorbis, and Opus. " \
f"Actual: {codec} [{stream['codec_long_name']}]"
return ""
async def _verify_audio_volume(self, seconds, video_file):
try:
validate_volume = int(seconds) > 0
except ValueError:
validate_volume = False
if not validate_volume:
return ""
result, _ = await self._execute("ffmpeg", f'-i "{video_file}" -t {seconds} '
f'-af volumedetect -vn -sn -dn -f null "{os.devnull}"')
try:
mean_volume = float(re.search(r"mean_volume:\s+([-+]?\d*\.\d+|\d+)", result).group(1))
max_volume = float(re.search(r"max_volume:\s+([-+]?\d*\.\d+|\d+)", result).group(1))
except Exception as e:
log.debug(" Failure in volume analysis. Message: %s", str(e))
return ""
if max_volume < -5.0 and mean_volume < -22.0:
return "Audio is at least five dB lower than prime. " \
f"Actual max: {max_volume}, mean: {mean_volume}"
log.debug(" Detected audio volume has mean, max of %f, %f dB", mean_volume, max_volume)
return ""
@staticmethod
def _compute_crf(scan_data):
height = 240.0
for stream in scan_data["streams"]:
if stream["codec_type"] == "video":
height = max(height, float(stream["height"]))
# https://developers.google.com/media/vp9/settings/vod/
return int(-0.011 * height + 40)
async def _get_video_encoder(self, scan_data):
# use what the user said if it's there:
# if it's not there, use h264 if we can because it's way faster than the others
# if we don't have h264 use vp9; it's fairly compatible even though it's slow
if not self._available_encoders:
self._available_encoders, _ = await self._execute("ffmpeg", "-encoders -v quiet")
encoder = self._conf.video_encoder.split(" ", 1)[0]
if re.search(fr"^\s*V..... {encoder} ", self._available_encoders, re.MULTILINE):
return self._conf.video_encoder
if re.search(r"^\s*V..... libx264 ", self._available_encoders, re.MULTILINE):
if encoder:
log.warning(" Using libx264 since the requested encoder was unavailable. Requested: %s", encoder)
return 'libx264 -crf 19 -vf "format=yuv420p"'
if not encoder:
encoder = "libx264"
if re.search(r"^\s*V..... libvpx-vp9 ", self._available_encoders, re.MULTILINE):
log.warning(" Using libvpx-vp9 since the requested encoder was unavailable. Requested: %s", encoder)
crf = self._compute_crf(scan_data)
return f"libvpx-vp9 -crf {crf} -b:v 0"
if re.search(r"^\s*V..... libtheora", self._available_encoders, re.MULTILINE):
log.warning(" Using libtheora since the requested encoder was unavailable. Requested: %s", encoder)
return "libtheora -q:v 7"
raise Exception(f"The video encoder is not available. Requested: {encoder}")
async def _get_audio_encoder(self, extension):
# if the video encoding is theora or av1/vp8/vp9 use opus (or fallback to vorbis)
# or we don't have a video encoding but we have an ogg or webm container use opus
# if we need to use opus/vorbis see if the conf file has it else use our own params
# else use the user-set value if it exists
# else use aac
wants_opus = extension != "mp4"
if not self._available_encoders:
self._available_encoders, _ = await self._execute("ffmpeg", "-encoders -v quiet")
encoder = self._conf.audio_encoder.split(" ", 1)[0]
if wants_opus and 'opus' in encoder:
return self._conf.audio_encoder
if wants_opus and re.search(r"^\s*A..... libopus ", self._available_encoders, re.MULTILINE):
return "libopus -b:a 160k"
if wants_opus and 'vorbis' in encoder:
return self._conf.audio_encoder
if wants_opus and re.search(r"^\s*A..... libvorbis ", self._available_encoders, re.MULTILINE):
return "libvorbis -q:a 6"
if re.search(fr"^\s*A..... {encoder} ", self._available_encoders, re.MULTILINE):
return self._conf.audio_encoder
if re.search(r"^\s*A..... aac ", self._available_encoders, re.MULTILINE):
return "aac -b:a 192k"
raise Exception(f"The audio encoder is not available. Requested: {encoder or 'aac'}")
async def _get_volume_filter(self):
return self._conf.volume_filter if self._conf.volume_filter else "-af loudnorm"
@staticmethod
def _get_best_container_extension(scan_data, video_encoder):
# the container is chosen by the video format
# if we are theora-encoded, we want ogg
# if we are vp8/vp9/av1 we want webm
# use mp4 for anything else
if not video_encoder: # not re-encoding video
for stream in scan_data["streams"]:
if stream["codec_type"] != "video":
continue
codec = stream["codec_name"].split(",")
if "theora" in codec:
return "ogg"
if {"vp8", "vp9", "av1"}.intersection(codec):
return "webm"
if "theora" in video_encoder:
return "ogg"
elif re.search(r"vp[89x]|av1", video_encoder.split(" ", 1)[0]):
return "webm"
return "mp4"
async def _get_scan_data(self, validate, file_path):
result, _ = await self._execute("ffprobe",
f'-v quiet -print_format json -show_format -show_streams "{file_path}"')
try:
scan_data = json.loads(result)
except Exception as e:
log.debug("Failure in JSON parsing ffprobe results. Message: %s", str(e))
if validate:
raise Exception(f'Invalid video file: {file_path}')
log.info("Unable to optimize %s . FFmpeg output was unreadable.", file_path)
return
if "format" not in scan_data:
if validate:
raise FileNotFoundError(f'Unexpected or absent video file contents at: {file_path}')
log.info("Unable to optimize %s . FFmpeg output is missing the format section.", file_path)
return
return scan_data
async def verify_or_repair(self, validate, repair, file_path):
if not validate and not repair:
return file_path
await self._verify_ffmpeg_installed()
scan_data = await self._get_scan_data(validate, file_path)
fast_start_msg = await self._verify_fast_start(scan_data, file_path)
log.debug("Analyzing %s:", file_path)
log.debug(" Detected faststart is %s", "false" if fast_start_msg else "true")
container_msg = self._verify_container(scan_data)
bitrate_msg = self._verify_bitrate(scan_data)
video_msg = self._verify_video_encoding(scan_data)
audio_msg = self._verify_audio_encoding(scan_data)
volume_msg = await self._verify_audio_volume(self._conf.volume_analysis_time, file_path)
messages = [container_msg, bitrate_msg, fast_start_msg, video_msg, audio_msg, volume_msg]
if not any(messages):
return file_path
if not repair:
errors = ["Streamability verification failed:"]
errors.extend(filter(None, messages))
raise Exception("\n ".join(errors))
# the plan for transcoding:
# we have to re-encode the video if it is in a nonstandard format
# we also re-encode if we are h264 but not yuv420p (both errors caught in video_msg)
# we also re-encode if our bitrate is too high
try:
transcode_command = [f'-i "{file_path}" -y -c:s copy -c:d copy -c:v']
video_encoder = ""
if video_msg or bitrate_msg:
video_encoder = await self._get_video_encoder(scan_data)
transcode_command.append(video_encoder)
else:
transcode_command.append("copy")
transcode_command.append("-movflags +faststart -c:a")
path = pathlib.Path(file_path)
extension = self._get_best_container_extension(scan_data, video_encoder)
if audio_msg or volume_msg:
audio_encoder = await self._get_audio_encoder(extension)
transcode_command.append(audio_encoder)
if volume_msg:
volume_filter = await self._get_volume_filter()
transcode_command.append(volume_filter)
else:
transcode_command.append("copy")
# TODO: put it in a temp folder and delete it after we upload?
output = path.parent / f"{path.stem}_fixed.{extension}"
transcode_command.append(f'"{output}"')
ffmpeg_command = " ".join(transcode_command)
log.info("Proceeding on transcode via: ffmpeg %s", ffmpeg_command)
result, code = await self._execute("ffmpeg", ffmpeg_command)
if code != 0:
raise Exception(f"Failure to complete the transcode command. Output: {result}")
except Exception as e:
if validate:
raise
log.info("Unable to transcode %s . Message: %s", file_path, str(e))
# TODO: delete partial output file here if it exists?
return file_path
return str(output)

62
scripts/check_video.py Executable file
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@ -0,0 +1,62 @@
#!/usr/bin/env python3
import asyncio
import logging
import platform
import sys
# noinspection PyUnresolvedReferences
import lbry.wallet # needed to make the following line work (it's a bug):
from lbry.conf import TranscodeConfig
from lbry.file_analysis import VideoFileAnalyzer
def enable_logging():
root = logging.getLogger()
root.setLevel(logging.DEBUG)
handler = logging.StreamHandler(sys.stdout)
handler.setLevel(logging.DEBUG)
formatter = logging.Formatter('%(message)s') # %(asctime)s - %(levelname)s -
handler.setFormatter(formatter)
root.addHandler(handler)
async def process_video(analyzer, video_file):
try:
await analyzer.verify_or_repair(True, False, video_file)
print("No concerns. Ship it!")
except FileNotFoundError as e:
print(str(e))
except Exception as e:
print(str(e))
transcode = input("Would you like to make a repaired clone now? [y/N] ")
if transcode == "y":
try:
new_video_file = await analyzer.verify_or_repair(True, True, video_file)
print("Successfully created ", new_video_file)
except Exception as e:
print("Unable to complete the transcode. Message: ", str(e))
def main():
if len(sys.argv) < 2:
print("Usage: check_video.py <path to video file>", file=sys.stderr)
sys.exit(1)
enable_logging()
video_file = sys.argv[1]
conf = TranscodeConfig()
analyzer = VideoFileAnalyzer(conf)
if sys.version_info < (3, 8) and platform.system() == "Windows":
# TODO: remove after we move to requiring Python 3.8
asyncio.set_event_loop(asyncio.ProactorEventLoop())
try:
asyncio.run(process_video(analyzer, video_file))
except KeyboardInterrupt:
pass
if __name__ == '__main__':
main()

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@ -0,0 +1,151 @@
import logging
import pathlib
import time
from .test_claim_commands import ClaimTestCase
from lbry.conf import TranscodeConfig
from lbry.file_analysis import VideoFileAnalyzer
log = logging.getLogger(__name__)
class MeasureTime:
def __init__(self, text):
print(text, end="...", flush=True)
def __enter__(self):
self.start = time.perf_counter()
def __exit__(self, exc_type, exc_val, exc_tb):
end = time.perf_counter()
print(f" done in {end - self.start:.6f}s", flush=True)
class TranscodeValidation(ClaimTestCase):
def make_name(self, name, extension=""):
path = pathlib.Path(self.video_file_name)
return path.parent / f"{path.stem}_{name}{extension or path.suffix}"
async def asyncSetUp(self):
await super().asyncSetUp()
self.conf = TranscodeConfig()
self.conf.volume_analysis_time = 0 # disable it as the test file isn't very good here
self.analyzer = VideoFileAnalyzer(self.conf)
file_ogg = self.make_name("ogg", ".ogg")
self.video_file_ogg = str(file_ogg)
if not file_ogg.exists():
command = f'-i "{self.video_file_name}" -c:v libtheora -q:v 4 -c:a libvorbis -q:a 4 ' \
f'-c:s copy -c:d copy "{file_ogg}"'
with MeasureTime(f"Creating {file_ogg.name}"):
output, code = await self.analyzer._execute("ffmpeg", command)
self.assertEqual(code, 0, output)
file_webm = self.make_name("webm", ".webm")
self.video_file_webm = str(file_webm)
if not file_webm.exists():
command = f'-i "{self.video_file_name}" -c:v libvpx-vp9 -crf 36 -b:v 0 -cpu-used 2 ' \
f'-c:a libopus -b:a 128k -c:s copy -c:d copy "{file_webm}"'
with MeasureTime(f"Creating {file_webm.name}"):
output, code = await self.analyzer._execute("ffmpeg", command)
self.assertEqual(code, 0, output)
async def test_should_work(self):
new_file_name = await self.analyzer.verify_or_repair(True, False, self.video_file_name)
self.assertEqual(self.video_file_name, new_file_name)
new_file_name = await self.analyzer.verify_or_repair(True, False, self.video_file_ogg)
self.assertEqual(self.video_file_ogg, new_file_name)
new_file_name = await self.analyzer.verify_or_repair(True, False, self.video_file_webm)
self.assertEqual(self.video_file_webm, new_file_name)
async def test_volume(self):
self.conf.volume_analysis_time = 200
with self.assertRaisesRegex(Exception, "lower than prime"):
await self.analyzer.verify_or_repair(True, False, self.video_file_name)
async def test_container(self):
file_name = self.make_name("bad_container", ".avi")
if not file_name.exists():
command = f'-i "{self.video_file_name}" -c copy -map 0 "{file_name}"'
with MeasureTime(f"Creating {file_name.name}"):
output, code = await self.analyzer._execute("ffmpeg", command)
self.assertEqual(code, 0, output)
with self.assertRaisesRegex(Exception, "Container format is not in the approved list"):
await self.analyzer.verify_or_repair(True, False, file_name)
fixed_file = await self.analyzer.verify_or_repair(True, True, file_name)
pathlib.Path(fixed_file).unlink()
async def test_video_codec(self):
file_name = self.make_name("bad_video_codec_1")
if not file_name.exists():
command = f'-i "{self.video_file_name}" -c copy -map 0 -c:v libx265 -preset superfast "{file_name}"'
with MeasureTime(f"Creating {file_name.name}"):
output, code = await self.analyzer._execute("ffmpeg", command)
self.assertEqual(code, 0, output)
with self.assertRaisesRegex(Exception, "Video codec is not in the approved list"):
await self.analyzer.verify_or_repair(True, False, file_name)
with self.assertRaisesRegex(Exception, "faststart flag was not used"):
await self.analyzer.verify_or_repair(True, False, file_name)
fixed_file = await self.analyzer.verify_or_repair(True, True, file_name)
pathlib.Path(fixed_file).unlink()
async def test_video_format(self):
file_name = self.make_name("bad_video_format_1")
if not file_name.exists():
command = f'-i "{self.video_file_name}" -c copy -map 0 -c:v libx264 ' \
f'-vf format=yuv444p "{file_name}"'
with MeasureTime(f"Creating {file_name.name}"):
output, code = await self.analyzer._execute("ffmpeg", command)
self.assertEqual(code, 0, output)
with self.assertRaisesRegex(Exception, "pixel format does not match the approved"):
await self.analyzer.verify_or_repair(True, False, file_name)
fixed_file = await self.analyzer.verify_or_repair(True, True, file_name)
pathlib.Path(fixed_file).unlink()
async def test_audio_codec(self):
file_name = self.make_name("bad_audio_codec_1", ".mkv")
if not file_name.exists():
command = f'-i "{self.video_file_name}" -c copy -map 0 -c:a pcm_s16le "{file_name}"'
with MeasureTime(f"Creating {file_name.name}"):
output, code = await self.analyzer._execute("ffmpeg", command)
self.assertEqual(code, 0, output)
with self.assertRaisesRegex(Exception, "Audio codec is not in the approved list"):
await self.analyzer.verify_or_repair(True, False, file_name)
fixed_file = await self.analyzer.verify_or_repair(True, True, file_name)
pathlib.Path(fixed_file).unlink()
async def test_extension_choice(self):
scan_data = await self.analyzer._get_scan_data(True, self.video_file_name)
extension = self.analyzer._get_best_container_extension(scan_data, "")
self.assertEqual(extension, pathlib.Path(self.video_file_name).suffix[1:])
scan_data = await self.analyzer._get_scan_data(True, self.video_file_ogg)
extension = self.analyzer._get_best_container_extension(scan_data, "")
self.assertEqual(extension, "ogg")
scan_data = await self.analyzer._get_scan_data(True, self.video_file_webm)
extension = self.analyzer._get_best_container_extension(scan_data, "")
self.assertEqual(extension, "webm")
extension = self.analyzer._get_best_container_extension("", "libx264 -crf 23")
self.assertEqual("mp4", extension)
extension = self.analyzer._get_best_container_extension("", "libvpx-vp9 -crf 23")
self.assertEqual("webm", extension)
extension = self.analyzer._get_best_container_extension("", "libtheora")
self.assertEqual("ogg", extension)
async def test_no_ffmpeg(self):
self.conf.ffmpeg_folder = "I don't really exist/"
with self.assertRaisesRegex(Exception, "Unable to locate"):
await self.analyzer.verify_or_repair(True, False, self.video_file_name)

View file

@ -199,7 +199,8 @@ class WalletEncryptionAndSynchronization(CommandTestCase):
await self.confirm_tx(sendtxid, self.daemon2.ledger)
def assertWalletEncrypted(self, wallet_path, encrypted):
wallet = json.load(open(wallet_path))
with open(wallet_path) as opened:
wallet = json.load(opened)
self.assertEqual(wallet['accounts'][0]['private_key'][1:4] != 'prv', encrypted)
async def test_sync(self):