GST_DEBUG：如何将日志保存在应用程序中的线程的单独文件中 [英] GST_DEBUG: How to save logs in a separate file for a thread inside an application

问题描述

我正在运行gstreamer的示例程序，它正从C ++应用程序调用作为线程。已设置 GST_DEBUG = *：5 级别以捕获所有可能的情况。

I am running a sample program of gstreamer which is being called from a C++ application as a thread. Have set the GST_DEBUG=*:5 level to capture all the possible scenarios.

应用程序还在stdout上打印大量日志，gstreamer线程也执行相同的操作（级别5增加了苦难）。

The application also prints lots and lots of logs on stdout and the gstreamer thread also does the same( the level 5 adds to the misery).

问题 - 有没有办法分离gstreamer线程在给定调试级别的文件中的日志打印？

Question -- Is there a way to separate out the log printing of gstreamer thread in a file with the given debug level ?

补充问题 - 根据以下回答设置GST_DEBUG_FILE，但文件从某些字符开始，而不是像GST_DEBUG一样

Supplementary question -- Set the GST_DEBUG_FILE based on answer below answer but the file starts from some characters and not from GST_DEBUG like

0:00:00.000036045 ^[[335m21088^[[00m  0x8405800 ^[[37mLOG    ^[[00m ^[[00;01;33m           GST_DEBUG gstinfo.c:1329:for_each_threshold_by_entry:^[[00m category default matches pattern 0x8405570 - gets set to level 5  
0:00:00.000109741 ^[[335m21088^[[00m  0x8405800 ^[[32;01mINFO   ^[[00m ^[[00;01;31m            GST_INIT gst.c:613:init_pre:^[[00m Initializing GStreamer Core Library version 0.10.36  
0:00:00.000123496 ^[[335m21088^[[00m  0x8405800 ^[[32;01mINFO   ^[[00m ^[[00;01;31m            GST_INIT gst.c:614:init_pre:^[[00m Using library installed in /usr/lib/i386-linux-gnu 

Q2如何清除这些字符，例如^ [[从GST开始？

Q2 How to remove these characters like "^[[" and start from GST ?

参考文献

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推荐答案

GST_DEBUG_FILE = / tmp / gst.log将把所有的日志记录到那个文件中，但是对于单独的日志你需要编写自己的loghandler。看看gstinfo.c和gst_debug_add_log_function。

GST_DEBUG_FILE=/tmp/gst.log will put all the logging into that file, but for separate log for separate threads you will need to write your own loghandler. Have a look in gstinfo.c, and gst_debug_add_log_function.

至于你的Q2，你需要编写自己的loghandler，如果你想从GST开始，因为这些其他字段（时间戳，进程ID，线程等）包括在默认日志处理程序中。 （再次参见gstinfo.c，gst_debug_log_default）

As for your Q2, again, you will need to write your own loghandler if you want it to start from GST, since these other fields (timestamp, process-id, thread etc.) are included in the default loghandler. (again see gstinfo.c, gst_debug_log_default)

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