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kingslay avatar kingslay commented on May 24, 2024

i use this mpd. produce an error: Server returned 403 Forbidden (access denied)

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wanwe avatar wanwe commented on May 24, 2024

the URL will expire after some time due to bilibili limit, can you try below script to create a test server locally?
save the code as bilimdp.py and run it with "python3 bilimpd.py", test url will be: "http://127.0.0.1/test"

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kingslay avatar kingslay commented on May 24, 2024

This page contains the following errors:
error on line 6 at column 333: EntityRef: expecting ';'
Below is a rendering of the page up to the first error.

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wanwe avatar wanwe commented on May 24, 2024

so sorry, fixed the code
earlier missed the 2nd replace in ".replace('http:', 'https:').replace('&', '&')" when I convert this code from js to python

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kingslay avatar kingslay commented on May 24, 2024

Unable to parse '/Users/kingslay/Library/Developer/Xcode/DerivedData/Demo-atfnkhqcmxsbaxhiuyrjxwhemsfx/Build/Products/Debug-maccatalyst/demo-iOS.app/Contents/Resources/1.mpd' - missing root node

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wanwe avatar wanwe commented on May 24, 2024

Oh..you are saving the mpd as local file? I didn’t test local file, I was playing URL http://127.0.0.1/test directly, and it works fine.

Thanks for your time! let me try save as local file as well

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kingslay avatar kingslay commented on May 24, 2024

但我直接用 http://127.0.0.1/test 播放报错
KSPlayer: MEPlayerItem.swift:88 init(url:options:) | HTTP error 403 Forbidden

KSPlayer: MEPlayerItem.swift:88 init(url:options:) | Failed to open fragment of playlist 0

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wanwe avatar wanwe commented on May 24, 2024

但我直接用 http://127.0.0.1/test 播放报错

KSPlayer: MEPlayerItem.swift:88 init(url:options:) | HTTP error 403 Forbidden

KSPlayer: MEPlayerItem.swift:88 init(url:options:) | Failed to open fragment of playlist 0

有点奇怪。。我测试了存成本地文件和直接用url都没有错误

我先把这个问题关掉了，让我再研究下，多谢！

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kingslay avatar kingslay commented on May 24, 2024

@wanwe 你可以试着把videoAdaptable的默认值改成是false。看下是不是因为多码率切换导致的问题。

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wanwe avatar wanwe commented on May 24, 2024

@kingslay 多谢！

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wanwe avatar wanwe commented on May 24, 2024

不好意思，重开一下这个issue
我发现：

  1. 用hardware decoder的时候会报错误-8969（simulator）不知道是不是这个原因，看不明白。。哈哈
  2. 不用hardwae decoder的时候报上面的NAL错误，差不多同一个时间点上，看起来上相关的？
  3. videoAdaptable=false也不行

我试着用以前的版本试了一下，有同样的问题（同一个视频）。可能以前的时候看的别的视频都比较短，这种错误出现的几率低？

KSPlayerTime 1158.4547165532879 of 4079.0
KSPlayer: MEPlayerItemTrack.swift:312 doDecode(packet:) | Decoder did Failed : Error Domain=KSPlayerErrorDomain Code=11 "avcodec can't receive video frame" UserInfo={NSLocalizedDescription=avcodec can't receive video frame, NSUnderlyingError=0x60000187f0f0 {Error Domain=FFmpegDomain Code=-8969 "Error number -8969 occurred" UserInfo={NSLocalizedDescription=Error number -8969 occurred}}}
KSPlayer: MEPlayerItem.swift:87 init(url:options:) | detected 4 logical cores

KSPlayer: MEPlayerItem.swift:87 init(url:options:) | nal_unit_type: 7(SPS), nal_ref_idc: 3

KSPlayer: MEPlayerItem.swift:87 init(url:options:) | nal_unit_type: 8(PPS), nal_ref_idc: 3

KSPlayer: MEPlayerItemTrack.swift:315 doDecode(packet:) | VideoCodec switch to software decompression
KSPlayerTime 1158.9539455782312 of 4079.0
KSPlayerTime 4079.0 of 4079.0
KSPlayer: KSPlayerLayer.swift:100 state | playerStateDidChange - playedToTheEnd
KSPlayerState playedToTheEnd
KSPlayer true
KSPlayer error: nil

你可以再试一下这个code吗？ 会自动生成bilibili_test.mpd文件，我的测试的时候, 播放没问题。

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Fri Apr 24 09:07:45 2020

@author: meow
"""
from flask import Flask, request, send_from_directory
from flask import render_template
from flask import request, jsonify, Response


import requests
import json
from lxml import etree
import os

requests.packages.urllib3.disable_warnings()

headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3970.5 Safari/537.36',
    'Referer': 'https://www.bilibili.com/'
}

app = Flask(__name__, static_url_path='')
app.config['DEBUG'] = False
app.config['SEND_FILE_MAX_AGE_DEFAULT'] = 0

def GetBiliVideo(homeurl,num,session=requests.session()):
    print(homeurl)
    #print("=======videoinforms")
    res = session.get(url=homeurl, headers=headers, verify=False)
    html = etree.HTML(res.content)
    #print(res.content)
    videoinforms = res.content #
    videoinforms = str(html.xpath('//head/script[3]/text()')[0])[20:]
    print(videoinforms)
    videojson = json.loads(videoinforms)    
    return GenMPD(videojson)


def GenMPD(resp):      
    dash = resp['data']['dash']
    video = dash['video'][0]
    audio = dash['audio'][0]
    mpd_template=f"""<MPD profiles="urn:hbbtv:dash:profile:isoff-live:2012,urn:mpeg:dash:profile:isoff-live:2011" type="static" xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:mpeg:DASH:schema:MPD:2011 DASH-MPD.xsd" minBufferTime="PT{dash['minBufferTime']}S" mediaPresentationDuration="PT{resp['data']['timelength']/1000}S">
     <BaseURL>./</BaseURL>
     <Period>
      <AdaptationSet mimeType="video/mp4" contentType="video" subsegmentAlignment="true" subsegmentStartsWithSAP="1">
       <SegmentTemplate duration="{dash['duration']}" media="{video['baseUrl'].replace('http:', 'https:').replace('&', '&amp;')}" startNumber="1"/>
       <Representation id="bilibili_{video['id']}" codecs="{video['codecs']}" bandwidth="{video['bandwidth']}" width="{video['width']}" height="{video['height']}" frameRate="{video['frameRate']}" sar="1:1"/>
      </AdaptationSet>
      <AdaptationSet mimeType="audio/mp4" contentType="audio" subsegmentAlignment="true" subsegmentStartsWithSAP="1">
       <Accessibility schemeIdUri="urn:tva:metadata:cs:AudioPurposeCS:2007" value="6"/>
       <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
       <SegmentTemplate duration="{dash['duration']}" media="{audio['baseUrl'].replace('http:', 'https:').replace('&', '&amp;')}" startNumber="1"/>
       <Representation id="bbb_a64k" codecs="{audio['codecs']}" bandwidth="{audio['bandwidth']}">
        <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
       </Representation>
      </AdaptationSet>
     </Period>
    </MPD>
    """
    return mpd_template


def test():
    av="43149523"
    p=6
    url=f'https://www.bilibili.com/video/av{av}'
    i=p
    mpd = GetBiliVideo(url+'?p='+str(i),i)
    #mpd = GetBiliVideo(url,i)
    with open("bilibili_test.mpd", mode="w") as fp:
      fp.write(mpd)
      fp.flush()
    print("saved to bilibili_test.mpd")
    return mpd
    

if __name__ == "__main__":
    test()

我的测试

        if let url = URL(string: "/Users/wei/projects/bilibili_test.mpd") {
            objects.append(KSPlayerResource(url: url, options: KSOptions(), name: "dash视频"))
        }

大部分时候问题在4:006:00或者18:0021:00之间，不知道为什么不是每次都有。。。

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kingslay avatar kingslay commented on May 24, 2024

你是用iPhone模拟器吗？我这边播放报错"Invalid data found when processing input"。我用其他的播放器例如 vlc也是无法播放这个mpd。你有改ffmpeg吗？

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wanwe avatar wanwe commented on May 24, 2024

Iphone/Apple tv simulator 都试了，都没问题
ffmpeg是ksplayer自带的，我没动过

好奇怪啊，你可以把生成的mpd内容贴上来吗？看看和我的有啥不一样

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kingslay avatar kingslay commented on May 24, 2024 
<MPD profiles="urn:hbbtv:dash:profile:isoff-live:2012,urn:mpeg:dash:profile:isoff-live:2011" type="static" xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="urn:mpeg:DASH:schema:MPD:2011 DASH-MPD.xsd" minBufferTime="PT1.5S" mediaPresentationDuration="PT4079.815S">
     <BaseURL>./</BaseURL>
     <Period>
      <AdaptationSet mimeType="video/mp4" contentType="video" subsegmentAlignment="true" subsegmentStartsWithSAP="1">
       <SegmentTemplate duration="4080" media="https://cn-zjhz3-wasu-bcache-01.bilivideo.com/upgcxcode/26/11/75641126/75641126-1-30064.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&amp;uipk=5&amp;nbs=1&amp;deadline=1593930405&amp;gen=playurl&amp;os=bcache&amp;oi=3664551470&amp;trid=ab7ab543945740e6a8d5f2751a748dc9u&amp;platform=pc&amp;upsig=a1112ca227aebab51f7f67a2150cd0fd&amp;uparams=e,uipk,nbs,deadline,gen,os,oi,trid,platform&amp;cdnid=20008&amp;mid=0&amp;orderid=0,3&amp;agrr=0&amp;logo=80000000" startNumber="1"/>
       <Representation id="bilibili_64" codecs="avc1.64001F" bandwidth="751460" width="1280" height="720" frameRate="25" sar="1:1"/>
      </AdaptationSet>
      <AdaptationSet mimeType="audio/mp4" contentType="audio" subsegmentAlignment="true" subsegmentStartsWithSAP="1">
       <Accessibility schemeIdUri="urn:tva:metadata:cs:AudioPurposeCS:2007" value="6"/>
       <Role schemeIdUri="urn:mpeg:dash:role:2011" value="main"/>
       <SegmentTemplate duration="4080" media="https://upos-sz-mirrorhw.bilivideo.com/upgcxcode/26/11/75641126/75641126-1-30280.m4s?e=ig8euxZM2rNcNbdlhoNvNC8BqJIzNbfqXBvEqxTEto8BTrNvN0GvT90W5JZMkX_YN0MvXg8gNEV4NC8xNEV4N03eN0B5tZlqNxTEto8BTrNvNeZVuJ10Kj_g2UB02J0mN0B5tZlqNCNEto8BTrNvNC7MTX502C8f2jmMQJ6mqF2fka1mqx6gqj0eN0B599M=&amp;uipk=5&amp;nbs=1&amp;deadline=1593930405&amp;gen=playurl&amp;os=hwbv&amp;oi=3664551470&amp;trid=ab7ab543945740e6a8d5f2751a748dc9u&amp;platform=pc&amp;upsig=10414594be8e99e57058e5ad29ce44ad&amp;uparams=e,uipk,nbs,deadline,gen,os,oi,trid,platform&amp;mid=0&amp;orderid=0,3&amp;agrr=0&amp;logo=80000000" startNumber="1"/>
       <Representation id="bbb_a64k" codecs="mp4a.40.2" bandwidth="127138">
        <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
       </Representation>
      </AdaptationSet>
     </Period>
    </MPD>

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wanwe avatar wanwe commented on May 24, 2024

神了。。我用你的iphone/appletv可以打开这个mpd，但是直接用ffplay播放就会有这个错误"Invalid data found when processing input“。。不知道什么魔法
我用ffplay吓测了一下，貌似和网络有关，这也解释了为啥同一个视频有时候有问题有时候没问题。。就是不知道为什么在浏览器里播放或者vlc播放的时候为什么一直没问题，难道可以在ffmpeg外面做什么错误处理或者自动跳过这一帧啥的？
Screenshot 2020-07-05 at 8 28 27 PM

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