def start(self, agfid, device_name, temp_file_dir):
params = {
'segment_list_file_abs_path':
temp_file_dir + str(datetime.datetime.now())[:10] + '.m3u8',
'segment_afid_list_file_abs_path':
temp_file_dir + str(datetime.datetime.now())[:10] + '_afid.m3u8',
'segement_time':
8,
'device_mount_point':
'/dev/' + device_name
}
self.ffmpeg = FFmpeg(self.get_live_command(params))
live = None
if agfid == "":
res, err = self.afs.create_gfid()
if err is not None:
return err
live = Live(res.agfid)
err = self.ffmpeg.start()
start = timer()
now = datetime.datetime.now()
live_time = now
for line in self.ffmpeg.get_stdout():
line = line.decode()
if self.ffmpeg.is_fail_to_find_video_device(line):
err = "cannot find video device " + params['device_mount_point']
return err
if self.ffmpeg.is_video_device_busy(line):
err = "cannot connect to video device " + params[
'device_mount_point'] + " since it is busy"
return err
if self.ffmpeg.is_creating_segment_ts(line):
if is_m3u8_file_exists(params):
m3u8 = M3U8(params['segment_list_file_abs_path'])
afid_m3u8 = None
if not is_afid_m3u8_file_exists(params):
contents = m3u8.get_contents(
m3u8.get_number_of_line() - 1)
afid_m3u8 = M3U8(
params['segment_afid_list_file_abs_path'])
afid_m3u8.create_from_contents(contents)
afid_m3u8.append_end("\n")
afid_m3u8.append_end(live.cts_afid)
else:
contents = m3u8.get_contents(
m3u8.get_number_of_line() - 1)
afid_m3u8 = M3U8(
params['segment_afid_list_file_abs_path'])
afid_m3u8.append_end("\n")
afid_m3u8.append_end(contents[-1])
afid_m3u8.append_end(live.cts_afid)
live.set_afid_m3u8(afid_m3u8)
live.set_m3u8(m3u8)
res, err = self.afs.upload(live.get_afid_m3u8().abs_path)
if err is not None:
return err
res, err = self.afs.set_gfid(live.get_agfid(), res.afid)
if err is not None:
return err
live.num_of_ts = live.num_of_ts + 1
live_time += datetime.timedelta(0, params['segement_time'])
cmd_out = "live_start=" + now.strftime(
"%Y-%m-%d %H:%M:%S"
) + ";lastest_up_cdn=" + datetime.datetime.now().strftime(
"%Y-%m-%d %H:%M:%S") + ";num_of_ts=" + str(
live.num_of_ts) + ";live_time=" + live_time.strftime(
"%Y-%m-%d %H:%M:%S") + ";agfid=" + live.agfid + ";"
print(cmd_out, flush=True)
logging.info(cmd_out)
live.cts_abs_path = self.ffmpeg.get_file_name_current_segemnt_ts(
line)
if self.ffmpeg.is_creating_segment_list(line):
if live.cts_abs_path != None:
res = self.afs.upload(live.cts_abs_path)
if err is not None:
return err
live.cts_afid = res.afid
os.remove(live.cts_abs_path)
return err
