偶尔 Recording 会停滞不动，webui 显示“当前未在录制屏幕”，疑似 ffmpeg 进程异常退出

[Antonoko]

偶尔 Recording 会停滞不动，webui 显示当前未在录制屏幕。 请刷新查看最新运行状态。，日志如下，但此时并没有爆内存，长时间不动或正常使用都偶尔会遇到这种情况，需要重启脚本才行。

frame= 1703 fps=1.9 q=0.0 size=    2048kB time=00:14:10.00 bitrate=  19.7[out#0/mp4 @ 000001f18f278dc0] video:2160kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.659762%
frame= 1800 fps=2.0 q=-1.0 Lsize=    2174kB time=00:14:58.50 bitrate=  19.8kbits/s speed=0.998x
[libx264 @ 000001f190dbe180] frame I:4     Avg QP: 1.50  size:293220
[libx264 @ 000001f190dbe180] frame P:205   Avg QP: 0.36  size:  2668
[libx264 @ 000001f190dbe180] frame B:1591  Avg QP: 0.56  size:   309
[libx264 @ 000001f190dbe180] consecutive B-frames:  0.3%  0.2%  0.2%  0.2%  0.3%  0.0%  0.8%  0.0% 98.0%
[libx264 @ 000001f190dbe180] mb I  I16..4: 59.3% 33.9%  6.8%
[libx264 @ 000001f190dbe180] mb P  I16..4:  0.5%  0.0%  0.0%  P16..4:  0.4%  0.0%  0.0%  0.0%  0.0%    skip:99.0%
[libx264 @ 000001f190dbe180] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.0%  0.0%  0.0%  direct: 0.0%  skip:100.0%  L0:40.4% L1:59.5% BI: 0.0%
[libx264 @ 000001f190dbe180] final ratefactor: -12.27
[libx264 @ 000001f190dbe180] 8x8 transform intra:27.2% inter:75.7%
[libx264 @ 000001f190dbe180] coded y,u,v intra: 11.8% 8.2% 6.9% inter: 0.0% 0.0% 0.0%
[libx264 @ 000001f190dbe180] i16 v,h,dc,p: 93%  3%  3%  1%
[libx264 @ 000001f190dbe180] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10%  8% 81%  1%  0%  0%  0%  0%  0%
[libx264 @ 000001f190dbe180] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 29% 18% 15% 18%  4%  3%  3%  5%  3%
[libx264 @ 000001f190dbe180] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 000001f190dbe180] ref P L0: 92.0%  0.4%  3.7%  3.9%
[libx264 @ 000001f190dbe180] ref B L0: 74.4% 24.1%  1.6%
[libx264 @ 000001f190dbe180] ref B L1: 97.4%  2.6%
[libx264 @ 000001f190dbe180] kb/s:19.65

Originally posted by @ASC8384 in https://github.com/yuka-friends/Windrecorder/issues/54#issuecomment-1842461795

@ASC8384 hi，当停滞不动时，任务管理器中可以找到 ffmpeg 进程吗？webui 中的检测选项会检测是否有 ffmpeg 进程正在运行，若无，可能是遇到了异常情况导致 ffmpeg 被退出了。

改进：录制过程中检测 ffmpeg 是否仍在正常执行，若无则重启进程。

[ASC8384]

任务管理器中找不到 ffmpeg 进程

以下是最新停滞的日志：

Inconsistent content
Writing to database.
_____________________
processing IMG - OCR:1768.jpg
maintainManager: OCR text by chineseOCRlite
[out#0/mp4 @ 00000230ac0f8dc0] video:1376kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.032061%
frame= 1800 fps=2.0 q=-1.0 Lsize=    1390kB time=00:14:58.50 bitrate=  12.7kbits/s speed=0.998x
[libx264 @ 00000230add2e180] frame I:3     Avg QP: 3.27  size:107107
[libx264 @ 00000230add2e180] frame P:201   Avg QP: 0.81  size:  3304
[libx264 @ 00000230add2e180] frame B:1596  Avg QP: 1.24  size:   265
[libx264 @ 00000230add2e180] consecutive B-frames:  0.2%  0.0%  0.0%  0.0%  0.8%  0.0%  0.0%  0.0% 99.0%
[libx264 @ 00000230add2e180] mb I  I16..4: 76.5% 20.0%  3.5%
[libx264 @ 00000230add2e180] mb P  I16..4:  0.4%  0.0%  0.0%  P16..4:  0.7%  0.1%  0.1%  0.0%  0.0%    skip:98.8%
[libx264 @ 00000230add2e180] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.1%  0.0%  0.0%  direct: 0.0%  skip:99.9%  L0:25.1% L1:74.9% BI: 0.0%
[libx264 @ 00000230add2e180] final ratefactor: -1.64
[libx264 @ 00000230add2e180] 8x8 transform intra:16.4% inter:47.6%
[libx264 @ 00000230add2e180] coded y,u,v intra: 10.9% 6.7% 5.2% inter: 0.0% 0.0% 0.0%
[libx264 @ 00000230add2e180] i16 v,h,dc,p: 93%  3%  2%  2%
[libx264 @ 00000230add2e180] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 37% 23% 22%  9%  2%  2%  1%  3%  2%
[libx264 @ 00000230add2e180] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 20% 16% 11%  6%  4%  3%  3%  2%
[libx264 @ 00000230add2e180] Weighted P-Frames: Y:0.5% UV:0.5%
[libx264 @ 00000230add2e180] ref P L0: 91.1%  0.2%  7.7%  1.1%
[libx264 @ 00000230add2e180] ref B L0: 89.7% 10.3%  0.0%
[libx264 @ 00000230add2e180] ref B L1: 98.8%  1.2%
[libx264 @ 00000230add2e180] kb/s:12.52

[ASC8384]

https://github.com/yuka-friends/Windrecorder/blob/33a2e8e28dae66d385f830caa2f7bc7c49afc766/record_screen.py#L277C1-L280C62

哪怕使用该代码，一天依旧会崩溃几次，但频率确实比之前的低多了

[Antonoko]

奇妙的很… 我这边最长程序可以连续 uptime 运行两周，在运行过程中杀掉 ffmpeg 也会自动重启录制线程。

也可以试试分支（虽然理论上也许不会改善？）：https://github.com/yuka-friends/Windrecorder/pull/46

（据说日志功能也在路上了）

cc @ShellBin 金牌技术员姐姐看看有什么可能性排查

[ASC8384]

会不会是 chineseOCRlite 的原因？ 配置是 i9-13900K + 64G

[ASC8384]

攒了 20 多个视频后再索引后，把start_webui.bat搞崩了。

ocr_manager: Calculate the coincidence rate of two results
overlap:97.97101449275362
The coincidence rate exceeds the threshold.
[Skip] The content is consistent, not written to the database, skipped.
_____________________
processing IMG - OCR:1696.jpg
ocr_manager: OCR text by chineseOCRlite
ocr_manager: ocr_sentence_result:
ocr_manager: Calculate the coincidence rate of two results
overlap:14.164305949008499
The coincidence rate does not exceed the threshold.
Inconsistent content
Writing to database.
_____________________
processing IMG - OCR:1704.jpg
ocr_manager: OCR text by chineseOCRlite
请按任意键继续. . .    

[Antonoko]

还真说不定是（不知道！）自从设置入口移除后就没用过 chineseOCRlite 了，未来再封下接口试试替换为 paddleOCR 之类的吧（挖坑）