#!/usr/bin/env python3 # This file is part of ffplayout. # # ffplayout is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # ffplayout is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with ffplayout. If not, see . # ------------------------------------------------------------------------------ import configparser import json import logging import os import smtplib import socket import sys from argparse import ArgumentParser from ast import literal_eval from datetime import date, datetime, timedelta from email.mime.multipart import MIMEMultipart from email.mime.text import MIMEText from email.utils import formatdate from logging.handlers import TimedRotatingFileHandler from shutil import copyfileobj from subprocess import PIPE, CalledProcessError, Popen, check_output from threading import Thread from time import sleep from types import SimpleNamespace # ------------------------------------------------------------------------------ # read variables from config file # ------------------------------------------------------------------------------ # read config cfg = configparser.ConfigParser() if os.path.exists("/etc/ffplayout/ffplayout.conf"): cfg.read("/etc/ffplayout/ffplayout.conf") else: cfg.read("ffplayout.conf") _general = SimpleNamespace( stop=cfg.getboolean('GENERAL', 'stop_on_error'), threshold=cfg.getfloat('GENERAL', 'stop_threshold') ) _mail = SimpleNamespace( subject=cfg.get('MAIL', 'subject'), server=cfg.get('MAIL', 'smpt_server'), port=cfg.getint('MAIL', 'smpt_port'), s_addr=cfg.get('MAIL', 'sender_addr'), s_pass=cfg.get('MAIL', 'sender_pass'), recip=cfg.get('MAIL', 'recipient') ) _log = SimpleNamespace( path=cfg.get('LOGGING', 'log_file'), level=cfg.get('LOGGING', 'log_level') ) _pre_comp = SimpleNamespace( w=cfg.getint('PRE_COMPRESS', 'width'), h=cfg.getint('PRE_COMPRESS', 'height'), aspect=cfg.getfloat( 'PRE_COMPRESS', 'width') / cfg.getfloat('PRE_COMPRESS', 'height'), fps=cfg.getint('PRE_COMPRESS', 'fps'), v_bitrate=cfg.getint('PRE_COMPRESS', 'v_bitrate'), v_bufsize=cfg.getint('PRE_COMPRESS', 'v_bitrate') / 2, logo=cfg.get('PRE_COMPRESS', 'logo'), logo_filter=cfg.get('PRE_COMPRESS', 'logo_filter'), protocols=cfg.get('PRE_COMPRESS', 'live_protocols'), copy=cfg.getboolean('PRE_COMPRESS', 'copy_mode'), copy_settings=literal_eval(cfg.get('PRE_COMPRESS', 'ffmpeg_copy_settings')) ) _playlist = SimpleNamespace( path=cfg.get('PLAYLIST', 'playlist_path'), start=cfg.getint('PLAYLIST', 'day_start'), filler=cfg.get('PLAYLIST', 'filler_clip'), blackclip=cfg.get('PLAYLIST', 'blackclip'), shift=cfg.getint('PLAYLIST', 'time_shift'), map_ext=cfg.get('PLAYLIST', 'map_extension') ) _buffer = SimpleNamespace( length=cfg.getint('BUFFER', 'buffer_length'), tol=cfg.getfloat('BUFFER', 'buffer_tolerance'), cli=cfg.get('BUFFER', 'buffer_cli'), cmd=literal_eval(cfg.get('BUFFER', 'buffer_cmd')) ) _playout = SimpleNamespace( preview=cfg.getboolean('OUT', 'preview'), name=cfg.get('OUT', 'service_name'), provider=cfg.get('OUT', 'service_provider'), out_addr=cfg.get('OUT', 'out_addr'), post_comp_video=literal_eval(cfg.get('OUT', 'post_comp_video')), post_comp_audio=literal_eval(cfg.get('OUT', 'post_comp_audio')), post_comp_extra=literal_eval(cfg.get('OUT', 'post_comp_extra')), post_comp_copy=literal_eval(cfg.get('OUT', 'post_comp_copy')) ) # ------------------------------------------------------------------------------ # logging # ------------------------------------------------------------------------------ stdin_parser = ArgumentParser(description="python and ffmpeg based playout") stdin_parser.add_argument( "-l", "--log", help="file to write log to (default '" + _log.path + "')" ) # If the log file is specified on the command line then override the default stdin_args = stdin_parser.parse_args() if stdin_args.log: _log.path = stdin_args.log logger = logging.getLogger(__name__) logger.setLevel(_log.level) handler = TimedRotatingFileHandler(_log.path, when="midnight", backupCount=5) formatter = logging.Formatter('[%(asctime)s] [%(levelname)s] %(message)s') handler.setFormatter(formatter) logger.addHandler(handler) # capture stdout and sterr in the log class PlayoutLogger(object): def __init__(self, logger, level): self.logger = logger self.level = level def write(self, message): # Only log if there is a message (not just a new line) if message.rstrip() != "": self.logger.log(self.level, message.rstrip()) def flush(self): pass # Replace stdout with logging to file at INFO level sys.stdout = PlayoutLogger(logger, logging.INFO) # Replace stderr with logging to file at ERROR level sys.stderr = PlayoutLogger(logger, logging.ERROR) # ------------------------------------------------------------------------------ # mail sender # ------------------------------------------------------------------------------ # send error messages to email addresses def mailer(message, time, path): if _mail.recip: msg = MIMEMultipart() msg['From'] = _mail.s_addr msg['To'] = _mail.recip msg['Subject'] = _mail.subject msg["Date"] = formatdate(localtime=True) msg.attach(MIMEText('{} {}\n{}'.format(time, message, path), 'plain')) text = msg.as_string() try: server = smtplib.SMTP(_mail.server, _mail.port) except socket.error as err: logger.error(err) server = None if server is not None: server.starttls() try: login = server.login(_mail.s_addr, _mail.s_pass) except smtplib.SMTPAuthenticationError as serr: logger.error(serr) login = None if login is not None: server.sendmail(_mail.s_addr, _mail.recip, text) server.quit() # ------------------------------------------------------------------------------ # global helper functions # ------------------------------------------------------------------------------ # get time def get_time(time_format): t = datetime.today() + timedelta(seconds=_playlist.shift) if time_format == 'hour': return t.hour elif time_format == 'full_sec': sec = float(t.hour * 3600 + t.minute * 60 + t.second) micro = float(t.microsecond) / 1000000 return sec + micro else: return t.strftime("%H:%M:%S") # get date def get_date(seek_day): d = date.today() + timedelta(seconds=_playlist.shift) if get_time('hour') < _playlist.start and seek_day: yesterday = d - timedelta(1) return yesterday.strftime('%Y-%m-%d') else: return d.strftime('%Y-%m-%d') # check if input file exist def file_exist(in_file): if os.path.exists(in_file): return True else: return False # test if value is float def is_float(value): try: float(value) return True except ValueError: return False # test if value is int def is_int(value): try: int(value) return True except ValueError: return False # calculating the size for the buffer in KB def calc_buffer_size(): # in copy mode files has normally smaller bit rate, # so we calculate the size different if _pre_comp.copy: list_date = get_date(True) year, month, day = list_date.split('-') json_file = os.path.join( _playlist.path, year, month, list_date + '.json') if file_exist(json_file): with open(json_file) as f: clip_nodes = json.load(f) if _playlist.map_ext: _ext = literal_eval(_playlist.map_ext) source = clip_nodes["program"][0]["source"].replace( _ext[0], _ext[1]) else: source = clip_nodes["program"][0]["source"] cmd = [ 'ffprobe', '-v', 'error', '-show_entries', 'format=bit_rate', '-of', 'default=noprint_wrappers=1:nokey=1', source] bite_rate = check_output(cmd).decode('utf-8') if is_int(bite_rate): bite_rate = int(bite_rate) / 1024 else: bite_rate = 4000 return int(bite_rate * 0.125 * _buffer.length) else: return 5000 else: return int((_pre_comp.v_bitrate * 0.125 + 281.25) * _buffer.length) # check if processes a well def check_process(play_thread, playout, mbuffer): while True: sleep(4) if playout.poll() is not None: logger.error( 'postprocess is not alive anymore, terminate ffplayout!') mbuffer.terminate() break if not play_thread.is_alive(): logger.error( 'preprocess is not alive anymore, terminate ffplayout!') mbuffer.terminate() break # compare clip play time with real time, # to see if we are sync def check_sync(begin): time_now = get_time('full_sec') start = float(_playlist.start * 3600) # in copy mode buffer length can not be calculatet correctly... if _pre_comp.copy: tolerance = 60 else: tolerance = _buffer.tol * 4 t_dist = begin - time_now if 0 <= time_now < start and not begin == start: t_dist -= 86400.0 # check that we are in tolerance time if not _buffer.length - tolerance < t_dist < _buffer.length + tolerance: mailer( 'Playlist is not sync!', get_time(None), '{} seconds async'.format(t_dist) ) logger.error('Playlist is {} seconds async!'.format(t_dist)) if _general.stop and abs(t_dist - _buffer.length) > _general.threshold: logger.error('Sync tolerance value exceeded, program is terminated') sys.exit(1) # check last item, when it is None or a dummy clip, # set true and seek in playlist def check_last_item(src_cmd, last_time, last): if src_cmd is None and not last: first = True last_time = get_time('full_sec') if 0 <= last_time < _playlist.start * 3600: last_time += 86400 elif 'lavfi' in src_cmd and not last: first = True last_time = get_time('full_sec') + _buffer.length + _buffer.tol if 0 <= last_time < _playlist.start * 3600: last_time += 86400 else: first = False return first, last_time # check begin and length def check_start_and_length(json_nodes, counter): # check start time and set begin if "begin" in json_nodes: h, m, s = json_nodes["begin"].split(':') if is_float(h) and is_float(m) and is_float(s): begin = float(h) * 3600 + float(m) * 60 + float(s) else: begin = -100.0 else: begin = -100.0 # check if playlist is long enough if "length" in json_nodes: l_h, l_m, l_s = json_nodes["length"].split(':') if is_float(l_h) and is_float(l_m) and is_float(l_s): length = float(l_h) * 3600 + float(l_m) * 60 + float(l_s) start = float(_playlist.start * 3600) total_play_time = begin + counter - start if "date" in json_nodes: date = json_nodes["date"] else: date = get_date(True) if total_play_time < length - 5: mailer( 'json playlist ({}) is not long enough!'.format(date), get_time(None), "total play time is: {}".format( timedelta(seconds=total_play_time)) ) logger.error('Playlist is only {} hours long!'.format( timedelta(seconds=total_play_time))) # validate json values in new Thread # and test if file path exist # TODO: we need better and unique validation, # now it is messy - the file get readed twice # and values get multiple time evaluate # IDEA: open one time the playlist, # not in a thread and build from it a new clean dictionary def validate_thread(clip_nodes): def check_json(json_nodes): error = '' counter = 0 # check if all values are valid for node in json_nodes["program"]: if _playlist.map_ext: _ext = literal_eval(_playlist.map_ext) source = node["source"].replace( _ext[0], _ext[1]) else: source = node["source"] prefix = source.split('://')[0] if prefix in _pre_comp.protocols: cmd = [ 'ffprobe', '-v', 'error', '-show_entries', 'format=duration', '-of', 'default=noprint_wrappers=1:nokey=1', source] try: output = check_output(cmd).decode('utf-8') except CalledProcessError: output = '404' if '404' in output: a = 'Stream not exist: {}\n'.format(source) else: a = '' elif file_exist(source): a = '' else: a = 'File not exist: {}\n'.format(source) if is_float(node["in"]) and is_float(node["out"]): b = '' counter += node["out"] - node["in"] else: b = 'Missing Value in: {}\n'.format(node) c = '' if is_float(node["duration"]) else 'No duration Value! ' line = a + b + c if line: logger.error('Validation error in line: {}'.format(line)) error += line + 'In line: {}\n'.format(node) if error: mailer( 'Validation error, check json playlist, values are missing:\n', get_time(None), error ) check_start_and_length(json_nodes, counter) validate = Thread(name='check_json', target=check_json, args=(clip_nodes,)) validate.daemon = True validate.start() # seek in clip def seek_in(seek): if seek > 0.0: return ['-ss', str(seek)] else: return [] # cut clip length def cut_end(duration, seek, out): if out < duration: return ['-t', str(out - seek)] else: return [] # generate a dummy clip, with black color and empty audiotrack def gen_dummy(duration): if _pre_comp.copy: return ['-i', _playlist.blackclip] else: return [ '-f', 'lavfi', '-i', 'color=s={}x{}:d={}:r={}'.format( _pre_comp.w, _pre_comp.h, duration, _pre_comp.fps ), '-f', 'lavfi', '-i', 'anullsrc=r=48000', '-shortest' ] # when source path exist, generate input with seek and out time # when path not exist, generate dummy clip def src_or_dummy(src, duration, seek, out, dummy_len=None): if src: prefix = src.split('://')[0] # check if input is a live source if prefix in _pre_comp.protocols: return seek_in(seek) + ['-i', src] + cut_end(duration, seek, out) elif file_exist(src): return seek_in(seek) + ['-i', src] + cut_end(duration, seek, out) else: mailer('Clip not exist:', get_time(None), src) logger.error('Clip not exist: {}'.format(src)) if dummy_len and not _pre_comp.copy: return gen_dummy(dummy_len) else: return gen_dummy(out - seek) else: return gen_dummy(dummy_len) # prepare input clip # check begin and length from clip # return clip only if we are in 24 hours time range def gen_input(src, begin, dur, seek, out, last): start = float(_playlist.start * 3600) day_in_sec = 86400.0 ref_time = day_in_sec + start time = get_time('full_sec') if 0 <= time < start: time += day_in_sec # calculate time difference to see if we are sync time_diff = _buffer.length + _buffer.tol + out - seek + time if (time_diff <= ref_time or begin < day_in_sec) and not last: # when we are in the 24 houre range, get the clip return src_or_dummy(src, dur, seek, out, 20), None elif time_diff < ref_time and last: # when last clip is passed and we still have too much time left # check if duration is larger then out - seek time_diff = _buffer.length + _buffer.tol + dur + time new_len = dur - (time_diff - ref_time) logger.info('we are under time, new_len is: {}'.format(new_len)) if time_diff >= ref_time: if src == _playlist.filler: # when filler is something like a clock, # is better to start the clip later and to play until end src_cmd = src_or_dummy(src, dur, dur - new_len, dur) else: src_cmd = src_or_dummy(src, dur, 0, new_len) else: src_cmd = src_or_dummy(src, dur, 0, dur) mailer( 'Playlist is not long enough:', get_time(None), '{} seconds needed.'.format(new_len) ) logger.error('Playlist is {} seconds to short'.format(new_len)) return src_cmd, new_len - dur elif time_diff > ref_time: new_len = out - seek - (time_diff - ref_time) # when we over the 24 hours range, trim clip logger.info('we are over time, new_len is: {}'.format(new_len)) if new_len > 5.0: if src == _playlist.filler: src_cmd = src_or_dummy(src, dur, out - new_len, out) else: src_cmd = src_or_dummy(src, dur, seek, new_len) elif new_len > 1.0: src_cmd = gen_dummy(new_len) else: src_cmd = None return src_cmd, 0.0 # blend logo and fade in / fade out def build_filtergraph(first, duration, seek, out, ad, ad_last, ad_next, dummy): length = out - seek - 1.0 logo_chain = [] logo_filter = [] video_chain = [] audio_chain = [] video_map = ['-map', '[logo]'] scale = 'scale={}:{},setdar=dar={}[s]'.format( _pre_comp.w, _pre_comp.h, _pre_comp.aspect) if seek > 0.0 and not first: video_chain.append('fade=in:st=0:d=0.5') audio_chain.append('afade=in:st=0:d=0.5') if out < duration: video_chain.append('fade=out:st={}:d=1.0'.format(length)) audio_chain.append('apad,afade=out:st={}:d=1.0'.format(length)) else: audio_chain.append('apad') if video_chain: video_fade = '[s]{}[v]'.format(','.join(video_chain)) else: video_fade = '[s]null[v]' audio_filter = [ '-filter_complex', '[0:a]{}[a]'.format(','.join(audio_chain))] audio_map = ['-shortest', '-map', '[a]'] if os.path.exists(_pre_comp.logo): if not ad: opacity = 'format=rgba,colorchannelmixer=aa=0.7' loop = 'loop=loop={}:size=1:start=0'.format( (out - seek) * _pre_comp.fps) logo_chain.append('movie={},{},{}'.format( _pre_comp.logo, loop, opacity)) if ad_last: logo_chain.append('fade=in:st=0:d=1.0:alpha=1') if ad_next: logo_chain.append('fade=out:st={}:d=1.0:alpha=1'.format(length)) if not ad: logo_filter = '{}[l];[v][l]{}[logo]'.format( ','.join(logo_chain), _pre_comp.logo_filter) else: logo_filter = '[v]null[logo]' else: logo_filter = '[v]null[logo]' video_filter = [ '-filter_complex', '[0:v]{};{};{}'.format( scale, video_fade, logo_filter)] if _pre_comp.copy: return [] elif dummy: return video_filter + video_map else: return video_filter + audio_filter + video_map + audio_map # ------------------------------------------------------------------------------ # main functions # ------------------------------------------------------------------------------ # read values from json playlist class GetSourceIter: def __init__(self): self.last_time = 0.0 self.last_mod_time = 0.0 self.json_file = None self.clip_nodes = None self.src_cmd = None self.filtergraph = [] self.first = True self.last = False self.list_date = get_date(True) self.is_dummy = False self.dummy_len = 60 self.has_begin = False self.init_time = get_time('full_sec') self.src = None self.seek = 0 self.out = 60 self.duration = 60 self.ad = False self.ad_last = False self.ad_next = False def get_playlist(self): year, month, day = self.list_date.split('-') self.json_file = os.path.join( _playlist.path, year, month, self.list_date + '.json') if file_exist(self.json_file): # check last modification from playlist mod_time = os.path.getmtime(self.json_file) if mod_time > self.last_mod_time: with open(self.json_file, 'r') as f: self.clip_nodes = json.load(f) self.last_mod_time = mod_time logger.info('open: ' + self.json_file) validate_thread(self.clip_nodes) else: # when we have no playlist for the current day, # then we generate a black clip # and calculate the seek in time, for when the playlist comes back self.error_handling('Playlist not exist:') # when begin is in playlist, get start time from it if self.clip_nodes and "begin" in self.clip_nodes: h, m, s = self.clip_nodes["begin"].split(':') if is_float(h) and is_float(m) and is_float(s): self.has_begin = True self.init_time = float(h) * 3600 + float(m) * 60 + float(s) else: self.has_begin = False def url_or_live_source(self): prefix = self.src.split('://')[0] # check if input is a live source if prefix in _pre_comp.protocols: cmd = [ 'ffprobe', '-v', 'error', '-show_entries', 'format=duration', '-of', 'default=noprint_wrappers=1:nokey=1', self.src] try: output = check_output(cmd).decode('utf-8') except CalledProcessError: output = None if not output: self.duration = 60 mailer('Clip not exist:', get_time(None), self.src) logger.error('Clip not exist: {}'.format(self.src)) if self.dummy_len and not _pre_comp.copy: self.src = None else: self.src = None self.dummy_len = 20 elif is_float(output): self.duration = float(output) else: self.duration = 86400 self.out = self.out - self.seek self.seek = 0 def map_extension(self, node): if _playlist.map_ext: _ext = literal_eval(_playlist.map_ext) self.src = node["source"].replace( _ext[0], _ext[1]) else: self.src = node["source"] def clip_length(self, node): if is_float(node["in"]): self.seek = node["in"] else: self.seek = 0 if is_float(node["duration"]): self.duration = node["duration"] else: self.duration = self.dummy_len if is_float(node["out"]): self.out = node["out"] else: self.out = self.duration def get_category(self, index, node): if 'category' in node: if index - 1 >= 0: last_category = self.clip_nodes[ "program"][index - 1]["category"] else: last_category = "noad" if index + 2 <= len(self.clip_nodes["program"]): next_category = self.clip_nodes[ "program"][index + 1]["category"] else: next_category = "noad" if node["category"] == 'advertisement': self.ad = True else: self.ad = False if last_category == 'advertisement': self.ad_last = True else: self.ad_last = False if next_category == 'advertisement': self.ad_next = True else: self.ad_next = False def set_filtergraph(self): self.filtergraph = build_filtergraph( self.first, self.duration, self.seek, self.out, self.ad, self.ad_last, self.ad_next, self.is_dummy) def check_source(self): if 'anullsrc=r=48000' in self.src_cmd: self.is_dummy = True else: self.is_dummy = False def error_handling(self, message): self.src_cmd = gen_dummy(self.dummy_len) if self.last: self.last_time = float(_playlist.start * 3600 - 5) self.first = False else: self.last_time = ( get_time('full_sec') + self.dummy_len + _buffer.length + _buffer.tol ) if 0 <= self.last_time < _playlist.start * 3600: self.last_time += 86400 self.first = True mailer(message, get_time(None), self.json_file) logger.error('{} {}'.format(message, self.json_file)) self.begin = get_time('full_sec') + _buffer.length + _buffer.tol self.last = False self.dummy_len = 60 self.last_mod_time = 0.0 def next(self): while True: self.get_playlist() if self.clip_nodes is None: self.is_dummy = True self.set_filtergraph() yield self.src_cmd, self.filtergraph continue # when last clip is None or a dummy, # we have to jump to the right place in the playlist self.first, self.last_time = check_last_item( self.src_cmd, self.last_time, self.last) self.begin = self.init_time # loop through all clips in playlist for index, node in enumerate(self.clip_nodes["program"]): self.map_extension(node) self.clip_length(node) # first time we end up here if self.first and \ self.last_time < self.begin + self.out - self.seek: if self.has_begin: # calculate seek time self.seek = self.last_time - self.begin + self.seek self.url_or_live_source() self.src_cmd, self.time_left = gen_input( self.src, self.begin, self.duration, self.seek, self.out, False ) self.check_source() self.get_category(index, node) self.set_filtergraph() self.first = False self.last_time = self.begin break elif self.last_time < self.begin: if index + 1 == len(self.clip_nodes["program"]): self.last = True else: self.last = False if self.has_begin: check_sync(self.begin) self.url_or_live_source() self.src_cmd, self.time_left = gen_input( self.src, self.begin, self.duration, self.seek, self.out, self.last ) self.check_source() self.get_category(index, node) self.set_filtergraph() if self.time_left is None: # normal behavior self.last_time = self.begin elif self.time_left > 0.0: # when playlist is finish and we have time left self.list_date = get_date(False) self.last_time = self.begin self.dummy_len = self.time_left else: # when there is no time left and we are in time, # set right values for new playlist self.list_date = get_date(False) self.last_time = float(_playlist.start * 3600 - 5) self.last_mod_time = 0.0 break self.begin += self.out - self.seek else: # when we reach currect end, stop script if "begin" not in self.clip_nodes or \ "length" not in self.clip_nodes and \ self.begin < get_time('full_sec'): logger.info('Playlist reach End!') return # when playlist exist but is empty, or not long enough, # generate dummy and send log self.error_handling('Playlist is not valid!') if self.src_cmd is not None: yield self.src_cmd, self.filtergraph # independent thread for clip preparation def play_clips(out_file, GetSourceIter): # send current file to buffer stdin iter = GetSourceIter() for src_cmd, filtergraph in iter.next(): if _pre_comp.copy: ff_pre_settings = _pre_comp.copy_settings else: ff_pre_settings = filtergraph + [ '-pix_fmt', 'yuv420p', '-r', str(_pre_comp.fps), '-c:v', 'mpeg2video', '-intra', '-b:v', '{}k'.format(_pre_comp.v_bitrate), '-minrate', '{}k'.format(_pre_comp.v_bitrate), '-maxrate', '{}k'.format(_pre_comp.v_bitrate), '-bufsize', '{}k'.format(_pre_comp.v_bufsize), '-c:a', 's302m', '-strict', '-2', '-ar', '48000', '-ac', '2', '-threads', '2', '-f', 'mpegts', '-' ] try: if src_cmd[0] == '-i': current_file = src_cmd[1] else: current_file = src_cmd[3] logger.info('play: "{}"'.format(current_file)) file_piper = Popen( [ 'ffmpeg', '-v', 'error', '-hide_banner', '-nostats' ] + src_cmd + list(ff_pre_settings), stdout=PIPE, bufsize=0 ) copyfileobj(file_piper.stdout, out_file) finally: file_piper.wait() def main(): year = get_date(False).split('-')[0] try: # open a buffer for the streaming pipeline # stdin get the files loop # stdout pipes to ffmpeg rtmp streaming mbuffer = Popen( [_buffer.cli] + list(_buffer.cmd) + ['{}k'.format(calc_buffer_size())], stdin=PIPE, stdout=PIPE, bufsize=0 ) try: if _playout.preview: # preview playout to player playout = Popen([ 'ffplay', '-v', 'error', '-hide_banner', '-nostats', '-i', 'pipe:0'], stdin=mbuffer.stdout, bufsize=0 ) else: # playout to rtmp if _pre_comp.copy: playout_pre = [ 'ffmpeg', '-v', 'info', '-hide_banner', '-nostats', '-re', '-i', 'pipe:0', '-c', 'copy' ] + _playout.post_comp_copy else: playout_pre = [ 'ffmpeg', '-v', 'info', '-hide_banner', '-nostats', '-re', '-thread_queue_size', '256', '-fflags', '+igndts', '-i', 'pipe:0', '-fflags', '+genpts' ] + _playout.post_comp_video + \ _playout.post_comp_audio playout = Popen( list(playout_pre) + [ '-metadata', 'service_name=' + _playout.name, '-metadata', 'service_provider=' + _playout.provider, '-metadata', 'year=' + year ] + list(_playout.post_comp_extra) + [ _playout.out_addr ], stdin=mbuffer.stdout, bufsize=0 ) play_thread = Thread( name='play_clips', target=play_clips, args=( mbuffer.stdin, GetSourceIter, ) ) play_thread.daemon = True play_thread.start() check_process(play_thread, playout, mbuffer) finally: playout.wait() finally: mbuffer.wait() if __name__ == '__main__': main()