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svtplay-dl/lib/svtplay_dl/postprocess/__init__.py
2023-10-09 00:07:12 +02:00

228 lines
8.9 KiB
Python

import logging
import os
import pathlib
import platform
import re
import sys
from random import sample
from shutil import which
from requests import codes
from requests import post
from requests import Timeout
from svtplay_dl.utils.http import FIREFOX_UA
from svtplay_dl.utils.output import formatname
from svtplay_dl.utils.proc import run_program
from svtplay_dl.utils.stream import subtitle_filter
class postprocess:
def __init__(self, stream, config, subfixes=None):
self.stream = stream
self.config = config
self.subfixes = [x.subfix for x in subtitle_filter(subfixes)]
self.detect = None
for i in ["ffmpeg", "avconv"]:
self.detect = which(i)
if self.detect:
break
if self.detect is None and platform.system() == "Windows":
path = pathlib.Path(sys.executable).parent / "ffmpeg.exe"
if os.path.isfile(path):
self.detect = path
def merge(self):
if self.detect is None:
logging.error("Cant detect ffmpeg or avconv. Cant mux files without it.")
return
if self.stream.finished is False:
return
orig_filename = formatname(self.stream.output, self.config)
ext = orig_filename.suffix
new_name = orig_filename.with_suffix(f".{self.config.get('output_format')}")
if ext == ".ts":
if self.stream.audio:
if not str(orig_filename).endswith(".audio.ts"):
audio_filename = orig_filename.with_suffix(".audio.ts")
else:
audio_filename = orig_filename
else:
audio_filename = orig_filename.with_suffix(".m4a")
cmd = [self.detect]
if (self.config.get("only_video") or not self.config.get("only_audio")) or (not self.stream.audio and self.config.get("only_audio")):
cmd += ["-i", str(orig_filename)]
if self.stream.audio:
cmd += ["-i", str(audio_filename)]
_, _, stderr = run_program(cmd, False) # return 1 is good here.
streams = _streams(stderr)
videotrack, audiotrack = _checktracks(streams)
if self.config.get("merge_subtitle"):
logging.info("Merge audio, video and subtitle into %s", new_name.name)
else:
logging.info(f"Merge audio and video into {str(new_name.name).replace('.audio', '')}")
tempfile = orig_filename.with_suffix(".temp")
arguments = []
if self.config.get("only_audio"):
arguments += ["-vn"]
if self.config.get("only_video"):
arguments += ["-an"]
arguments += ["-c:v", "copy", "-c:a", "copy", "-f", "matroska" if self.config.get("output_format") == "mkv" else "mp4"]
if ext == ".ts":
if audiotrack and "aac" in _getcodec(streams, audiotrack):
arguments += ["-bsf:a", "aac_adtstoasc"]
cmd = [self.detect]
if self.config.get("only_video") or (not self.config.get("only_audio") or (not self.stream.audio and self.config.get("only_audio"))):
cmd += ["-i", str(orig_filename)]
if self.stream.audio:
cmd += ["-i", str(audio_filename)]
if videotrack:
arguments += ["-map", f"{videotrack}"]
if audiotrack:
arguments += ["-map", f"{audiotrack}"]
if self.config.get("merge_subtitle"):
langs = _sublanguage(self.stream, self.config, self.subfixes)
tracks = [x for x in [videotrack, audiotrack] if x]
subs_nr = 0
sub_start = 0
# find what sub track to start with. when a/v is in one file it start with 1
# if seperate it will start with 2
for i in tracks:
if int(i[0]) >= sub_start:
sub_start += 1
for stream_num, language in enumerate(langs, start=sub_start):
arguments += [
"-map",
f"{str(stream_num)}:0",
"-c:s:" + str(subs_nr),
"mov_text" if self.config.get("output_format") == "mp4" else "copy",
"-metadata:s:s:" + str(subs_nr),
"language=" + language,
]
subs_nr += 1
if self.subfixes and self.config.get("get_all_subtitles"):
for subfix in self.subfixes:
subfile = orig_filename.parent / (orig_filename.stem + "." + subfix + ".srt")
cmd += ["-i", str(subfile)]
else:
subfile = orig_filename.with_suffix(".srt")
cmd += ["-i", str(subfile)]
arguments += ["-y", str(tempfile)]
cmd += arguments
returncode, stdout, stderr = run_program(cmd)
if returncode != 0:
return
if self.config.get("keep_original") is True:
logging.info("Merging done, keeping original files.")
os.rename(tempfile, orig_filename)
return
logging.info("Merging done, removing old files.")
if self.config.get("only_video") or (not self.config.get("only_audio") or (not self.stream.audio and self.config.get("only_audio"))):
os.remove(orig_filename)
if (self.stream.audio and self.config.get("only_audio")) or (self.stream.audio and not self.config.get("only_video")):
os.remove(audio_filename)
# This if statement is for use cases where both -S and -M are specified to not only merge the subtitle but also store it separately.
if self.config.get("merge_subtitle") and not self.config.get("subtitle"):
if self.subfixes and len(self.subfixes) >= 2 and self.config.get("get_all_subtitles"):
for subfix in self.subfixes:
subfile = orig_filename.parent / (orig_filename.stem + "." + subfix + ".srt")
os.remove(subfile)
else:
os.remove(subfile)
os.rename(tempfile, str(new_name).replace(".audio", ""))
def _streams(output):
return re.findall(r"Stream \#(\d:\d)([\[\(][^:\[]+[\]\)])?([\(\)\w]+)?: (Video|Audio): (.*)", output)
def _getcodec(streams, number):
for stream in streams:
if stream[0] == number:
return stream[4]
return None
def _checktracks(streams):
videotrack = None
audiotrack = None
for stream in streams:
if stream[3] == "Video":
videotrack = stream[0]
if stream[3] == "Audio":
if stream[4] == "mp3, 0 channels":
continue
audiotrack = stream[0]
return videotrack, audiotrack
def _sublanguage(stream, config, subfixes):
# parse() function partly borrowed from a guy on github. /thanks!
# https://github.com/riobard/srt.py/blob/master/srt.py
def parse(self):
def parse_block(block):
lines = block.strip("-").split("\n")
txt = "\r\n".join(lines[2:])
return txt
if platform.system() == "Windows":
fd = open(self, encoding="utf8")
else:
fd = open(self)
return list(map(parse_block, fd.read().strip().replace("\r", "").split("\n\n")))
def query(self):
_ = parse(self)
random_sentences = " ".join(sample(_, len(_) if len(_) < 8 else 8)).replace("\r\n", "")
url = "https://svtplay-dl.se/langdetect/"
headers = {"User-Agent": f"{FIREFOX_UA} {platform.machine()}"}
try:
r = post(url, json={"query": random_sentences}, headers=headers, timeout=30)
if r.status_code == codes.ok:
try:
response = r.json()
return response["language"]
except TypeError:
return "und"
else:
logging.error("Server error appeared. Setting language as undetermined.")
return "und"
except Timeout:
logging.error("30 seconds server timeout reached. Setting language as undetermined.")
return "und"
langs = []
exceptions = {"lulesamiska": "smj", "meankieli": "fit", "jiddisch": "yid"}
logging.info("Determining the language of the subtitle(s).")
if config.get("get_all_subtitles"):
for subfix in subfixes:
if [exceptions[key] for key in exceptions.keys() if re.match(key, subfix.strip("-"))]:
if "oversattning" in subfix.strip("-"):
subfix = subfix.strip("-").split(".")[0]
else:
subfix = subfix.strip("-")
langs += [exceptions[subfix]]
continue
sfile = formatname(stream.output, config)
subfile = sfile.parent / (sfile.stem + "." + subfix + ".srt")
langs += [query(subfile)]
else:
subfile = formatname(stream.output, config).with_suffix(".srt")
langs += [query(subfile)]
if len(langs) >= 2:
logging.info("Language codes: %s", ", ".join(langs))
else:
logging.info("Language code: %s", langs[0])
return langs