DAR | DAR - Disk ARchive | Continuous Backup library
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of DAR
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QUESTION
I created a live stream session on instafeed.me then used ffmpeg
to send an MP4 file to the stream. But I get IO error.
The command is
...ANSWER
Answered 2021-Oct-02 at 00:09Instagram apparently does not like MP3. Use AAC instead. Replace -acodec libmp3lame
/-c:a libmp3lame
with -c:a aac
.
QUESTION
I am new to flutter and attempting to write my first app on my own outside of a course. I am working with using the Flutter Provider package, and I am successfully able to read values using Provide, but I am having issues writing over values to update them with Provider.
Code Walk Through
In my main.dar I am calling the create command on my class Week()
ANSWER
Answered 2022-Mar-22 at 08:56You can call your method like this,
QUESTION
I am trying to use mockito to return a fake response in the http.Client call and be able to test the service. I have followed the documentation. It tells me that I should use annotate to generate a fake class, but it seems that the null safe of flutter is causing problems. Does anyone know how? fix it thanks
movies_provider_test.dart
...ANSWER
Answered 2022-Mar-16 at 02:47Manually mocking http.Client
is tricky. Stubs must match arguments exactly. In your case, you created a stub for:
QUESTION
I am trying to stream live to Facebook with the following settings:
...ANSWER
Answered 2022-Mar-05 at 09:19Place
QUESTION
I'm building a search functionality where I need to search for a specific value to be find by part of its text. So I've got an example object:
...ANSWER
Answered 2022-Feb-02 at 19:02The issue is your map()
call. It will return an Object (your org) if it has at least one client that passes the filter()
, but implicity returns undefined
if filtered.length
is not greater than zero.
In JS every function has a return -- either declared with return
, or implicit. The default implicit value is undefined
which is where those array entries are coming from. You could switch map()
to filter()
and it should work (since it will omit the falsy undefined
values from the array).
QUESTION
Help me please. I have query set from Model.objects.value('name', 'language__name') and it give me the list of dictionary:
...ANSWER
Answered 2022-Feb-02 at 05:49You can iterate over lst
and create a dictionary out
where the keys correspond to "id" values in the dicts in lst
and the values are dicts. In each iteration, check if the value under "language" key is a list or not and append to the list if it's a list, create a list, if not. Finally, pass the values of out
to a list constructor for the final outcome.
QUESTION
I'm trying to convert a 7200x3600 60fps h265 video using my RTX 3080 to the h264 codec because of some compatibility issue with VR.
This command line result in "No NVENC capable devices found
" error:
ANSWER
Answered 2021-Dec-18 at 04:18For H.264, nvenc has a max. resolution limit of 4096x4096. Use a software encoder like libx264. But note that a resolution of 7200x3600 is beyond the limit of any valid H.264 level so hope your target player doesn't care. Or use HEVC with different parameters.
QUESTION
On the PlantUML I'm getting syntax errror on the class diagams generated by dcdg on Flutter/Dart. First error is on line 66, how to fix them? Planttext.com or plantuml-editor.kkeisuke.com can be used to show the uml.
...ANSWER
Answered 2021-Nov-16 at 05:23Looks like the issue is caused by the fact that some strings are split over multiple lines (copy / past error or some automatic editor setting at 80(?) characters per line), i.e lines like:
QUESTION
I'm trying to specify a set of tests by fully qualified package name, using Maven 3.6.3 with maven-surefire-plugin 3.0.0-M5 on OpenJDK 11. The documentation states...
As of Surefire Plugin 2.19.1, the syntax with fully qualified class names or packages can be used
...and goes on to give an example:
...ANSWER
Answered 2021-Oct-20 at 09:10To be honest, this looks like a bug in maven-surefire-plugin, or at best some behavior change that isn't documented properly.
I took the sample you posted to GitHub, downgraded it to maven-surefire-plugin 2.19.1, and it works just fine.
You may want to report this bug Apache's Jira.
QUESTION
I'm trying to publish a video using ffmpeg
. For publishing, I'm using python frame images as the input source. But when it streams, the video colours are different.
ANSWER
Answered 2021-Oct-28 at 06:58If you are reading JPEGs, PNGs, or video into OpenCV, it will hold them in memory in BGR channel ordering. If you are feeding such frames into ffmpeg
you must either:
- convert the frames to RGB first inside OpenCV with
cv2.cvtColor(... cv2.COLOR_BGR2RGB)
before sending toffmpeg
, or - tell
ffmpeg
that the frames are in BGR order by putting-pix_fmt bgr24
before the input specifier, i.e. before-i -
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