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  • FFMPEG Issue : Video breaks a lot hence the real time video gets distorted and gets a little delayed while streaming on a webpage from drone

    26 mars 2022, par ashiyaa nunhuck

    ****I am trying to detect a face from my drone camera in real time.The video streams successfully but it is delayed and breaks a lot. Is there any solution to this problem ? How can i have a smooth video streaming with little delay and no video breaking in order to succeed in detecting a face ? Your help will be much appreciated.
Also, this is printed while my code is running: :

    


    


    INFO:werkzeug:127.0.0.1 - - [27/May/2021 15:16:14] "GET
/video/streaming HTTP/1.1" 200 -
INFO:drone_face_recognition_and_tracking.controllers.server :'action' :
'command', 'cmd' : 'takeOff'
INFO:drone_face_recognition_and_tracking.models.manage_drone :'action' :
'send_command', 'command' : 'takeoff' [h264 @ 0x55aa924a2e40] error
while decoding MB 45 38, bytestream -6 [h264 @ 0x55aa924a2e40]
concealing 424 DC, 424 AC, 424 MV errors in I frame [h264 @
0x55aa922a9a00] concealing 687 DC, 687 AC, 687 MV errors in P frame
[h264 @ 0x55aa923f79c0] left block unavailable for requested intra
mode [h264 @ 0x55aa923f79c0] error while decoding MB 0 34, bytestream
1347 [h264 @ 0x55aa923f79c0] concealing 709 DC, 709 AC, 709 MV errors
in P frame INFO:werkzeug:127.0.0.1 - - [27/May/2021 15:16:17] "POST
/api/command/ HTTP/1.1" 200 - pipe:0 : corrupt decoded frame in stream
0
Last message repeated 2 times [h264 @ 0x55aa922a9a00] error while decoding MB 49 30, bytestream -6 [h264 @ 0x55aa922a9a00] concealing
900 DC, 900 AC, 900 MV errors in P frame pipe:0 : corrupt decoded frame
in stream 0
INFO:drone_face_recognition_and_tracking.models.manage_drone :'action' :
'receive_response', 'response' : b'ok'
INFO:drone_face_recognition_and_tracking.controllers.server :'action' :
'command', 'cmd' : 'faceDetectAndTrack' INFO:werkzeug:127.0.0.1 - -
[27/May/2021 15:16:21] "POST /api/command/ HTTP/1.1" 200 - [h264 @
0x55aa924a2e40] left block unavailable for requested intra4x4 mode -1
[h264 @ 0x55aa924a2e40] error while decoding MB 0 30, bytestream 1624
[h264 @ 0x55aa924a2e40] concealing 949 DC, 949 AC, 949 MV errors in I
frame pipe:0 : corrupt decoded frame in stream 0 [h264 @
0x55aa9244d400] left block unavailable for requested intra mode [h264
@ 0x55aa9244d400] error while decoding MB 0 12, bytestream 2936 [h264
@ 0x55aa9244d400] concealing 2029 DC, 2029 AC, 2029 MV errors in I
frame pipe:0 : corrupt decoded frame in stream 0 [h264 @
0x55aa924bf700] concealing 1632 DC, 1632 AC, 1632 MV errors in P frame
pipe:0 : corrupt decoded frame in stream 0 [h264 @ 0x55aa92414280]
concealing 1571 DC, 1571 AC, 1571 MV errors in P frame

    


    


    Here is my code :****

    


    import logging
import contextlib
import os
import socket
import subprocess
import threading
import time
import cv2 as cv
import numpy as np

from drone_face_recognition_and_tracking.models.base import Singleton

logger = logging.getLogger(__name__)

DEFAULT_DISTANCE = 0.30
DEFAULT_SPEED = 10
DEFAULT_DEGREE = 10

FRAME_X = int(320)  # try 640
FRAME_Y = int(240)  # try 480
FRAME_AREA = FRAME_X * FRAME_Y

FRAME_SIZE = FRAME_AREA * 3
FRAME_CENTER_X = FRAME_X / 2
FRAME_CENTER_Y = FRAME_Y / 2

CMD_FFMPEG = (f'ffmpeg -probesize 32 -hwaccel auto -hwaccel_device opencl -i pipe:0 '
              f'-pix_fmt bgr24 -s {FRAME_X}x{FRAME_Y} -f rawvideo pipe:1')

FACE_DETECT_XML_FILE = './drone_face_recognition_and_tracking/models/haarcascade_frontalface_default.xml'


def receive_video(stop_event, pipe_in, host_ip, video_port):
    with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock_video:
        sock_video.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        sock_video.settimeout(.5)
        sock_video.bind((host_ip, video_port))
        data = bytearray(2048)
        while not stop_event.is_set():
            try:
                size, addr = sock_video.recvfrom_into(data)
                # logger.info({'action': 'receive_video', 'data': data})
            except socket.timeout as ex:
                logger.warning({'action': 'receive_video', 'ex': ex})
                time.sleep(0.5)
                continue
            except socket.error as ex:
                logger.error({'action': 'receive_video', 'ex': ex})
                break

            try:
                pipe_in.write(data[:size])
                pipe_in.flush()
            except Exception as ex:
                logger.error({'action': 'receive_video', 'ex': ex})
                break


class Tello_Drone(metaclass=Singleton):
    def __init__(self, host_ip='192.168.10.2', host_port=8889,
                 drone_ip='192.168.10.1', drone_port=8889,
                 is_imperial=False, speed=DEFAULT_SPEED):
        self.host_ip = host_ip
        self.host_port = host_port
        self.drone_ip = drone_ip
        self.drone_port = drone_port
        self.drone_address = (drone_ip, drone_port)
        self.is_imperial = is_imperial
        self.speed = speed
        self.socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
        self.socket.bind((self.host_ip, self.host_port))

        self.response = None
        self.stop_event = threading.Event()
        self._response_thread = threading.Thread(target=self.receive_response, args=(self.stop_event, ))
        self._response_thread.start()

        self.proc = subprocess.Popen(CMD_FFMPEG.split(' '),
                                     stdin=subprocess.PIPE,
                                     stdout=subprocess.PIPE)
        self.proc_stdin = self.proc.stdin
        self.proc_stdout = self.proc.stdout

        self.video_port = 11111

        self._receive_video_thread = threading.Thread(
            target=receive_video,
            args=(self.stop_event, self.proc_stdin,
                  self.host_ip, self.video_port,))
        self._receive_video_thread.start()

        self.face_cascade = cv.CascadeClassifier(FACE_DETECT_XML_FILE)
        self._is_enable_face_detect = False

        self.send_command('command')
        self.send_command('streamon')
        self.set_speed(self.speed)

    def receive_response(self, stop_event):
        while not stop_event.is_set():
            try:
                self.response, ip = self.socket.recvfrom(3000)
                logger.info({'action': 'receive_response',
                             'response': self.response})
            except socket.error as ex:
                logger.error({'action': 'receive_response',
                             'ex': ex})
                break

    def __dell__(self):
        self.stop()

    def stop(self):
        self.stop_event.set()
        retry = 0
        while self._response_thread.is_alive():
            time.sleep(0.3)
            if retry > 30:
                break
            retry += 1
        self.socket.close()
        os.kill(self.proc.pid, 9)

    def send_command(self, command):
        logger.info({'action': 'send_command', 'command': command})
        self.socket.sendto(command.encode('utf-8'), self.drone_address)

        retry = 0
        while self.response is None:
            time.sleep(0.3)
            if retry > 3:
                break
            retry += 1

        if self.response is None:
            response = None
        else:
            response = self.response.decode('utf-8')
        self.response = None
        return response

    def takeoff(self):
        return self.send_command('takeoff')

    def land(self):
        return self.send_command('land')

    def move(self, direction, distance):
        distance = float(distance)
        if self.is_imperial:
            distance = int(round(distance * 30.48))
        else:
            distance = int(round(distance * 100))
        return self.send_command(f'{direction} {distance}')

    def up(self, distance=DEFAULT_DISTANCE):
        return self.move('up', distance)

    def down(self, distance=DEFAULT_DISTANCE):
        return self.move('down', distance)

    def left(self, distance=DEFAULT_DISTANCE):
        return self.move('left', distance)

    def right(self, distance=DEFAULT_DISTANCE):
        return self.move('right', distance)

    def forward(self, distance=DEFAULT_DISTANCE):
        return self.move('forward', distance)

    def back(self, distance=DEFAULT_DISTANCE):
        return self.move('back', distance)

    def set_speed(self, speed):
        return self.send_command(f'speed {speed}')

    def clockwise(self, degree=DEFAULT_DEGREE):
        return self.send_command(f'cw {degree}')

    def counter_clockwise(self, degree=DEFAULT_DEGREE):
        return self.send_command(f'ccw {degree}')

    def video_binary_generator(self):
        while True:
            try:
                frame = self.proc_stdout.read(FRAME_SIZE)
            except Exception as ex:
                logger.error({'action': 'video_binary_generator', 'ex': ex})
                continue

            if not frame:
                continue

            frame = np.fromstring(frame, np.uint8).reshape(FRAME_Y, FRAME_X, 3)
            yield frame

    def enable_face_detect(self):
        self._is_enable_face_detect = True

    def disable_face_detect(self):
        self._is_enable_face_detect = False

    def video_jpeg_generator(self):
        for frame in self.video_binary_generator():
            if self._is_enable_face_detect:
                gray = cv.cvtColor(frame, cv.COLOR_BGR2GRAY)
                faces = self.face_cascade.detectMultiScale(gray, 1.2, 4)
                for (x, y, w, h) in faces:
                    cv.rectangle(frame, (x, y), (x+w, y+h), (0, 0, 255), 2)
                    break

            _, jpeg = cv.imencode('.jpg', frame)
            jpeg_binary = jpeg.tobytes()
            yield jpeg_binary


    


  • FFMPEG/DASH-LL creates audio and video chunks at different rates ; player is confused (404 errors)

    26 mai 2021, par Danny

    I'm trying to create a MPEG-DASH "live" stream from a static file to test various low latency modes. The DASH muxer in FFmpeg creates two AdaptationSets, one for video chunks and one for audio chunks.

    


    However, the audio and video chunk files are not created at the same rate (should they be ?). ie, here stream0 are the video chunks and stream1 are the audio chunks. After a few seconds of running, the webroot directory contains :

    


    chunk-stream0-00001.m4s  chunk-stream1-00001.m4s  
chunk-stream0-00002.m4s  chunk-stream1-00002.m4s  
chunk-stream0-00003.m4s  chunk-stream1-00003.m4s  
chunk-stream0-00004.m4s  chunk-stream1-00004.m4s  
                         chunk-stream1-00005.m4s  
                         chunk-stream1-00006.m4s  
                         chunk-stream1-00007.m4s  
                         chunk-stream1-00008.m4s  
                         chunk-stream1-00009.m4s  
master.mpd  
init-stream0.m4s  
init-stream1.m4s  


    


    The stream doesn't load (or play) on either dash.js or shaka-player and there are lots of 404 (Not Found) errors for the video chunks. The player is requesting chunks from both stream0 and stream1 in sequence, ie, stream0-001 + stream1-001, then stream0-002 + stream1-002 and so on.

    


    But since stream0 only goes from 001 to 004, there are lots of 404 errors as it tries to load stream0-005 through 009.

    


    The gap gets wider after letting FFmpeg run for a while. eg, stream0 is 62 to 75 but stream1 is 174 to 187. Reloading the player page at this point fails with dash.all.debug.js:15615 [2055][FragmentController] No video bytes to push or stream is inactive. and shows 404 errors stream0 chunk 188 (which doesn't exist yet !)

    


    enter image description here

    


    The FFmpeg command was adopted from DASH streaming from the top-down :

    


    ffmpeg -re -i /mnt/swdevel/TestStreams/H264/ThreeHourMovie.mp4 \
-c:v libx264 -x264-params keyint=120:scenecut=0 -b:v 1M -c:a copy \
-f dash -dash_segment_type mp4 \
 -seg_duration 2 \
 -target_latency 3 \
 -frag_type duration \
 -frag_duration 0.2 \
 -window_size 10 \
 -extra_window_size 3 \
 -streaming 1 \
 -ldash 1 \
 -use_template 1 \
 -use_timeline 0 \
 -write_prft 1 \
 -fflags +nobuffer+flush_packets \
 -format_options "movflags=+cmaf" \
 -utc_timing_url "/pelican/testPlayers/time.php" \
 master.mpd


    


    And the dash.js player code is very simple :

    


    const srcUrl = "../ottWebRoot/playerTest/master.mpd"; 

var player = dashjs.MediaPlayer().create();

let autoPlay = false;
player.initialize(document.querySelector("#videoTagId"), srcUrl, autoPlay);

player.updateSettings(
{
    streaming :
    {
        lowLatencyEnabled : true,
        liveDelay : 2,
        jumpGaps : true,
        jumpLargeGaps : true,
        smallGapLimit : 1.5,
    }
});


    


    To provide the UTCTiming element in the manifest, the small time.php URL returns a UTC time from the web server :

    


    <?php
    print gmdate("Y-m-d\TH:i:s\Z");
?>


    


    (It also shows 404 errors for the latest stream1/audio chunk, that's likely a different problem)

    


    I'm not sure what to try next. Any and suggestions greatly appreciated.

    


    EDIT I

    


    The suggestion by @Anonymous Coward to change the key interval improved things a lot. The chunks for stream0 and stream1 are in lock-step and have identical sequence numbers.

    


    However, there are still many 404 errors, both on initial page load (without pressing play) and during playback.

    


    I ran watch -n 1 ls -lt code> and compared side-by-side to the errors in the browser console.  It&#x27;s hard to compare but it <em>looks</em> like the browser is trying to fetch files "on the play edge" which haven&#x27;t yet been created by FFmpeg.  See the pic below.

    &#xA;

    How do I instruct the browser to wait just a bit more before fetching the edge chunks ?

    &#xA;

    enter image description here

    &#xA;

    EDIT II

    &#xA;

    Using shaka-player instead of dash.js plays properly without 404 errors. Configured as :

    &#xA;

        player.configure(&#xA;    {&#xA;        streaming: &#xA;        {&#xA;            lowLatencyMode: true,&#xA;            inaccurateManifestTolerance: 0,&#xA;            rebufferingGoal: 0.1,&#xA;        }&#xA;        &#xA;    });&#xA;

    &#xA;

    Client

    &#xA;

      &#xA;
    • MacOS 10.12

      • &#xA;

    • dash.js latest 3.2.2

      • &#xA;

    • Chrome 79, Safari 12, FireFox v ?

      • &#xA;

    &#xA;

    Server

    &#xA;

      &#xA;
    • Apache 2.4.37

      • &#xA;

    • PHP 7.2.4 (for time function only)

      • &#xA;

    • Centos 8

      • &#xA;

    &#xA;

    (For reference, here is the mpd file generated by FFmpeg)

    &#xA;

    &lt;?xml version="1.0" encoding="utf-8"?>&#xA;<mpd xmlns="urn:mpeg:dash:schema:mpd:2011" profiles="urn:mpeg:dash:profile:isoff-live:2011" type="dynamic" minimumupdateperiod="PT500S" availabilitystarttime="2021-05-24T14:50:00.263Z" publishtime="2021-05-24T15:22:45.335Z" timeshiftbufferdepth="PT50.0S" maxsegmentduration="PT2.0S" minbuffertime="PT5.0S">&#xA;    <programinformation>&#xA;    </programinformation>&#xA;    <servicedescription>&#xA;        <latency target="3000" referenceid="0"></latency>&#xA;    </servicedescription>&#xA;    <period start="PT0.0S">&#xA;        <adaptationset contenttype="video" startwithsap="1" segmentalignment="true" bitstreamswitching="true" framerate="24/1" maxwidth="1280" maxheight="682" par="15:8" lang="und">&#xA;            <resync dt="200000" type="0"></resync>&#xA;            <representation mimetype="video/mp4" codecs="avc1.64081f" bandwidth="1000000" width="1280" height="682" sar="1023:1024">&#xA;                <producerreferencetime inband="true" type="captured" wallclocktime="2021-05-24T14:50:00.263Z" presentationtime="0">&#xA;                    <utctiming schemeiduri="urn:mpeg:dash:utc:http-xsdate:2014" value="/pelican/testPlayers/time.php"></utctiming>&#xA;                </producerreferencetime>&#xA;                <resync dt="5000000" type="1"></resync>&#xA;                <segmenttemplate timescale="1000000" duration="2000000" availabilitytimeoffset="1.800" availabilitytimecomplete="false" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="1">&#xA;                </segmenttemplate>&#xA;            </representation>&#xA;        </adaptationset>&#xA;        <adaptationset contenttype="audio" startwithsap="1" segmentalignment="true" bitstreamswitching="true" lang="und">&#xA;            <resync dt="200000" type="0"></resync>&#xA;            <representation mimetype="audio/mp4" codecs="mp4a.40.2" bandwidth="116317" audiosamplingrate="48000">&#xA;                <audiochannelconfiguration schemeiduri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"></audiochannelconfiguration>&#xA;                <producerreferencetime inband="true" type="captured" wallclocktime="2021-05-24T14:50:00.306Z" presentationtime="0">&#xA;                    <utctiming schemeiduri="urn:mpeg:dash:utc:http-xsdate:2014" value="/pelican/testPlayers/time.php"></utctiming>&#xA;                </producerreferencetime>&#xA;                <resync dt="21333" type="1"></resync>&#xA;                <segmenttemplate timescale="1000000" duration="2000000" availabilitytimeoffset="1.800" availabilitytimecomplete="false" initialization="init-stream$RepresentationID$.m4s" media="chunk-stream$RepresentationID$-$Number%05d$.m4s" startnumber="1">&#xA;                </segmenttemplate>&#xA;            </representation>&#xA;        </adaptationset>&#xA;    </period>&#xA;    <utctiming schemeiduri="urn:mpeg:dash:utc:http-xsdate:2014" value="/pelican/testPlayers/time.php"></utctiming>&#xA;</mpd>&#xA;

    &#xA;

  • Packet corrupt (stream = 0, dts = 2490755129) error in ffmpeg which creates HLS and in ffmpeg which uploads HLS to a CDN

    25 mai 2021, par Amit Maharjan

    ffmpeg command which creates the hls stream :&#xA;ffmpeg -y -v warning -i udp://225.1.2.3:2000?reuse=1&amp;buffer_size=16777216&amp;localaddr=127.0.0.1&amp;overrun_nonfatal=1 -c:v:0 h264_qsv -global_quality 25 -pix_fmt nv12 -r 59.94 -filter:v:0 fps=fps=59.94,scale=768:432:force_original_aspect_ratio=decrease,pad=768:432:(ow-iw)/2:(oh-ih)/2 -vsync cfr -g 120 -c:a:0 aac -ar 48000 -b:a:0 128k -profile:v:0 high -level:v:0 3.1 -b:v:0 1000k -maxrate:v:0 1000k -bufsize:v:0 1000k -map 0:v -map 0:a -c:v:1 h264 -global_quality 25 -pix_fmt nv12 -r 24 -filter:v:1 fps=fps=24,scale=640:360:force_original_aspect_ratio=decrease,pad=640:360:(ow-iw)/2:(oh-ih)/2 -vsync cfr -g 121 -c:a:1 aac -ar 44100 -b:a:1 128k -profile:v:1 main -level:v:1 3.1 -b:v:1 800k -maxrate:v:1 800k -bufsize:v:1 800k -map 0:v -map 0:a -max_muxing_queue_size 4096 -f hls -hls_list_size 10 -hls_delete_threshold 30 -hls_flags delete_segments -hls_time 4 -master_pl_name master.m3u8 -var_stream_map " v:0,a:0,name:0 v:1,a:1,name:1" -hls_start_number_source epoch C:path_to_hls_data/436379cd-11e6-4ef0-a198-58c69b139803/%v_playlist.m3u8

    &#xA;

    ffmpeg command to upload the hls stream to cdn :&#xA;ffmpeg -y -v warning -re -f hls -http_persistent 0 -i http://localhost:3000/assets/436379cd-11e6-4ef0-a198-58c69b139803/master.m3u8 -b:v:0 1000k -b:a:0 128k -c:v:0 copy -c:a:0 copy -b:v:1 800k -b:a:1 128k -c:v:1 copy -c:a:1 copy -method POST -map 0:v:0 -map 0:a:0 -map 0:v:1 -map 0:a:1 -var_stream_map " v:0,a:0,name:0 v:1,a:1,name:1" -f hls -master_pl_name master.m3u8 -hls_list_size 10 -hls_time 4 -hls_flags second_level_segment_index -master_pl_publish_rate 150 -strftime 1 -hls_segment_filename "cdn_link" "cdn_link"

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    In the logs below _UploaderProcess is the ffmpeg which uploads the hls stream to cdn, _encProcess_dst is the ffmpeg which creates the hls stream

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    Error logs :

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    6961    19:42:40.241    2021-05-08  [2021-05-08T19:42:40.241 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [mpegts @ 0000026eabff7c40] Packet corrupt (stream = 0, dts = 1805890264).&#xA;&#xA;6960    19:42:36.204    2021-05-08  [2021-05-08T19:42:36.204 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [hls @ 0000026eabfecb40] skipping 3 segments ahead, expired from playlists&#xA;&#xA;6959    19:42:27.520    2021-05-08  [2021-05-08T19:42:27.520 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [h264 @ 0000025030f09540] co located POCs unavailable&#xA;6958    19:42:27.516    2021-05-08  [2021-05-08T19:42:27.516 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [h264 @ 0000025030f0a780] co located POCs unavailable&#xA;6957    19:42:27.514    2021-05-08  [2021-05-08T19:42:27.514 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [h264 @ 0000025030f0c780] co located POCs unavailable&#xA;6956    19:42:27.504    2021-05-08  Error while decoding stream #0:1: Invalid data found when processing input&#xA;6955    19:42:27.504    2021-05-08  [aac @ 000002502ff97c40] Number of scalefactor bands in group (57) exceeds limit (49).&#xA;6954    19:42:27.504    2021-05-08  [2021-05-08T19:42:27.504 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [aac @ 000002502ff97c40] Reserved bit set.&#xA;6953    19:42:27.503    2021-05-08  Error while decoding stream #0:1: Invalid data found when processing input&#xA;6952    19:42:27.503    2021-05-08  [2021-05-08T19:42:27.503 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [aac @ 000002502ff97c40] Number of bands (50) exceeds limit (41).&#xA;6951    19:42:27.501    2021-05-08  [mpegts @ 000002502ff6cdc0] Packet corrupt (stream = 1, dts = 5313003).&#xA;6950    19:42:27.501    2021-05-08  [2021-05-08T19:42:27.501 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [mpegts @ 000002502ff6cdc0] PES packet size mismatch&#xA;6949    19:42:27.498    2021-05-08  [2021-05-08T19:42:27.498 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [mpegts @ 000002502ff6cdc0] Packet corrupt (stream = 0, dts = 5327196).&#xA;6948    19:42:24.201    2021-05-08  [2021-05-08T19:42:24.201 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [mpegts @ 0000026eabff7c40] Packet corrupt (stream = 0, dts = 1804448823).&#xA;6947    19:42:20.193    2021-05-08  [2021-05-08T19:42:20.193 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [hls @ 0000026eabfecb40] skipping 2 segments ahead, expired from playlists&#xA;6946    19:42:08.190    2021-05-08  [mpegts @ 0000026eabff7c40] Packet corrupt (stream = 0, dts = 1803007381).&#xA;6945    19:42:08.190    2021-05-08  [2021-05-08T19:42:08.190 DEBUG video_encoder.js:1] - _UploaderProcess stderr: Last message repeated 1 times&#xA;6944    19:41:48.169    2021-05-08  [2021-05-08T19:41:48.169 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [hls @ 0000026eabfecb40] skipping 2 segments ahead, expired from playlists&#xA;6943    19:41:44.289    2021-05-08  [2021-05-08T19:41:44.289 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [mpegts @ 000002502ff6cdc0] Packet corrupt (stream = 0, dts = 1445819).&#xA;6942    19:41:36.153    2021-05-08  [2021-05-08T19:41:36.153 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [mpegts @ 0000026eabff7c40] Packet corrupt (stream = 0, dts = 1800124498).&#xA;6941    19:41:34.154    2021-05-08  [2021-05-08T19:41:34.154 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [hls @ 0000026eabfecb40] skipping 2 segments ahead, expired from playlists&#xA;6940    19:41:31.565    2021-05-08  Error while decoding stream #0:1: Invalid data found when processing input&#xA;6939    19:41:31.565    2021-05-08  [2021-05-08T19:41:31.565 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [aac @ 000002502ff97c40] skip_data_stream_element: Input buffer exhausted before END element found&#xA;6938    19:41:31.564    2021-05-08  Error while decoding stream #0:1: Invalid data found when processing input&#xA;6937    19:41:31.564    2021-05-08  [2021-05-08T19:41:31.564 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [aac @ 000002502ff97c40] Number of bands (46) exceeds limit (41).&#xA;6936    19:41:31.498    2021-05-08  [mpegts @ 000002502ff6cdc0] Packet corrupt (stream = 1, dts = 185153643).&#xA;6935    19:41:31.498    2021-05-08  [2021-05-08T19:41:31.498 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [mpegts @ 000002502ff6cdc0] PES packet size mismatch&#xA;6934    19:41:31.486    2021-05-08  [2021-05-08T19:41:31.486 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [h264 @ 0000025030f0be80] co located POCs unavailable&#xA;6933    19:41:31.484    2021-05-08  [2021-05-08T19:41:31.484 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [h264 @ 0000025030f0b540] co located POCs unavailable&#xA;6932    19:41:31.483    2021-05-08  [2021-05-08T19:41:31.483 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [h264 @ 0000025030f0b0c0] co located POCs unavailable&#xA;6931    19:41:31.480    2021-05-08  [2021-05-08T19:41:31.480 DEBUG video_encoder.js:1] - _encProcess_dst stderr: [mpegts @ 000002502ff6cdc0] Packet corrupt (stream = 0, dts = 185167857).&#xA;6930    19:41:31.447    2021-05-08  [2021-05-08T19:41:31.447 DEBUG video_encoder.js:1] - _tspProcess_play stderr: * Warning: regulate: out of sequence PCR, maybe source was cycling, restarting regulation&#xA;6929    19:41:22.164    2021-05-08  [mpegts @ 0000026eabff7c40] Packet corrupt (stream = 0, dts = 1798863237).&#xA;6928    19:41:22.164    2021-05-08  [2021-05-08T19:41:22.164 DEBUG video_encoder.js:1] - _UploaderProcess stderr: Last message repeated 1 times&#xA;6927    19:41:02.119    2021-05-08  [2021-05-08T19:41:02.119 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [hls @ 0000026eabfecb40] skipping 2 segments ahead, expired from playlists&#xA;6926    19:40:50.147    2021-05-08  [2021-05-08T19:40:50.147 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [mpegts @ 0000026eabff7c40] Packet corrupt (stream = 0, dts = 1795980354).&#xA;6925    19:40:46.111    2021-05-08  [2021-05-08T19:40:46.111 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [hls @ 0000026eabfecb40] skipping 2 segments ahead, expired from playlists&#xA;6924    19:40:34.099    2021-05-08  [2021-05-08T19:40:34.099 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [mpegts @ 0000026eabff7c40] Packet corrupt (stream = 0, dts = 1794538913).&#xA;6923    19:40:30.074    2021-05-08  [2021-05-08T19:40:30.074 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [hls @ 0000026eabfecb40] skipping 2 segments ahead, expired from playlists&#xA;6922    19:40:18.062    2021-05-08  [2021-05-08T19:40:18.062 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [mpegts @ 0000026eabff7c40] Packet corrupt (stream = 0, dts = 1793097471).&#xA;6921    19:40:14.081    2021-05-08  [2021-05-08T19:40:14.081 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [hls @ 0000026eabfecb40] skipping 2 segments ahead, expired from playlists&#xA;6920    19:40:02.055    2021-05-08  [mpegts @ 0000026eabff7c40] Packet corrupt (stream = 0, dts = 1791656030).&#xA;6919    19:40:02.055    2021-05-08  [2021-05-08T19:40:02.055 DEBUG video_encoder.js:1] - _UploaderProcess stderr: Last message repeated 1 times&#xA;6918    19:39:42.040    2021-05-08  [2021-05-08T19:39:42.040 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [hls @ 0000026eabfecb40] skipping 2 segments ahead, expired from playlists&#xA;6917    19:39:30.017    2021-05-08  [2021-05-08T19:39:30.017 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [mpegts @ 0000026eabff7c40] Packet corrupt (stream = 0, dts = 1788773147).&#xA;6916    19:39:26.014    2021-05-08  [2021-05-08T19:39:26.014 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [hls @ 0000026eabfecb40] skipping 2 segments ahead, expired from playlists&#xA;6915    19:39:13.996    2021-05-08  [2021-05-08T19:39:13.996 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [mpegts @ 0000026eabff7c40] Packet corrupt (stream = 0, dts = 1787331706).&#xA;6914    19:39:10.004    2021-05-08  [2021-05-08T19:39:10.004 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [hls @ 0000026eabfecb40] skipping 2 segments ahead, expired from playlists&#xA;6913    19:38:58.003    2021-05-08  [2021-05-08T19:38:58.003 DEBUG video_encoder.js:1] - _UploaderProcess stderr: [mpegts @ 0000026eabff7c40] Packet corrupt (stream = 0, dts = 1785890264).&#xA;

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