[Bug]: 录制抖音直播时有报错

[zhangmx999]

运行环境

版本号：v2.18 运行平台：win10 运行架构： Python版本：

配置文件

{
            "platform": "Douyin",
            "id": "91551668001",
            "name": "我罗慈悲",
            "output": "output/我罗慈悲",
            "interval": 10
        },

复现步骤（可选）

1.正常运行一段时间后，会报错，也许与主播关播有关 2. 3. ...

错误描述

可能主播关播以后，程序会出现异常

错误日志

[2023-07-19 00:28:05][ERROR][main][stream_writer:156][Douyin][我罗慈悲]直播录制未知错误 Could not open stream: Unable to open URL: http://pull-flv-l11.douyincdn.com/stage/stream-689853974488547473_or4.flv?expire=1690302431&sign=ab8197664b707ce425f26025b739c65d (404 Client Error: Not Found for url: http://pull-flv-l11.douyincdn.com/stage/stream-689853974488547473_or4.flv?expire=1690302431&sign=ab8197664b707ce425f26025b739c65d) Traceback (most recent call last):

File "streamlink\plugin\api\http_session.py", line 175, in request

File "requests\models.py", line 1021, in raise_for_status

requests.exceptions.HTTPError: 404 Client Error: Not Found for url: http://pull-flv-l11.douyincdn.com/stage/stream-689853974488547473_or4.flv?expire=1690302431&sign=ab8197664b707ce425f26025b739c65d

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "streamlink_cli\main.py", line 305, in open_stream

File "streamlink\stream\http.py", line 62, in open

File "streamlink\plugin\api\http_session.py", line 183, in request

streamlink.exceptions.StreamError: Unable to open URL: http://pull-flv-l11.douyincdn.com/stage/stream-689853974488547473_or4.flv?expire=1690302431&sign=ab8197664b707ce425f26025b739c65d (404 Client Error: Not Found for url: http://pull-flv-l11.douyincdn.com/stage/stream-689853974488547473_or4.flv?expire=1690302431&sign=ab8197664b707ce425f26025b739c65d)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):

File "threading.py", line 973, in _bootstrap

File "threading.py", line 1016, in _bootstrap_inner

File "threading.py", line 953, in run

File "concurrent\futures\thread.py", line 83, in _worker

File "concurrent\futures\thread.py", line 58, in run

File "main.py", line 133, in run_record

File "main.py", line 146, in stream_writer

File "streamlink_cli\main.py", line 307, in open_stream

streamlink.exceptions.StreamError: Could not open stream: Unable to open URL: http://pull-flv-l11.douyincdn.com/stage/stream-689853974488547473_or4.flv?expire=1690302431&sign=ab8197664b707ce425f26025b739c65d (404 Client Error: Not Found for url: http://pull-flv-l11.douyincdn.com/stage/stream-689853974488547473_or4.flv?expire=1690302431&sign=ab8197664b707ce425f26025b739c65d)

错误截图（可选）

[auqhjjqdo]

出现此报错后是否会重新录制？或者是只有关播之后才会出现？ 如果会重新录制则说明抖音的直播流地址会出现更换的现象，需要寻找直播流地址更换的触发机制 如果是关播才出现则是正常现象，关播后直播流会中断，只能通过报错来停止录播

[zhangmx999]

程序对主播关播的行为，应该进行提示吧，而不能抛出异常吧，能改就改吧，反正凑合能用

[auqhjjqdo]

程序对主播关播的行为，应该进行提示吧，而不能抛出异常吧，能改就改吧，反正凑合能用

录制过程是由streamlink接管的，正常情况应该是如下图所示 streamlink在关播后的判定方式是通过直播流地址超时抛出异常然后退出录制，此时才会回到程序进行后续操作 由于streamlink官方并不支持抖音直播，只能由程序先提取出直播流地址再由streamlink录制，而抖音关播后直播流地址找不到，streamlink就直接报错Could not open stream: Unable to open URL，如果直接捕获该异常然后提示主播已下播，在真正遇到直播流找不到的情况下就会出现错误判定，所以这个判定是不好改的，需要有大量下播的测试环境，目前暂时只能搁置该问题

[zhangmx999]

好的

[auqhjjqdo]

我特意看了下streamlink的源码，Could not open stream的报错是来自于开始录制时无法打开直播流，并非录制结束后的报错，如果你在下次遇到该报错时，先留意一下主播的直播是否是黑屏缓冲之类的状态，是否在多次报错后正常录制，感谢提交bug

[zhangmx999]

谢谢啦