I wish I could grab some information from the codec (freeze, error frames, decoding errors for example), and hence I imagine this is performed in the NetStream class and I could have it send more info than the SRTT, bitrate & co.
So, I'm asking ! Is a Netstream class source code available in OSMF ?
Thank you !
You can try many of the other net classes in org.osmf.net. that do exactly what you want.
For instance, to capture net connection and status events, you can check out the org.osmf.net.Netloader class.
And yes, the source code is available and is also compilable ;-)
Related
I am using Read DTC Information(0x19) protocol, Subfunction: 0x02: Report DTC by Status Mask
But my question is specifically related to 0x1902 logic.
I tried to report DTCs by using different status masks. Fo example, 0x19020D and 0x190201 With 190201 request, I can get only failed DTCs, but I don't know the logic behind that?
How can I configure my requests by using status masks? I need main logic of 1902 request. I would appreciate if anyone could help me to understand it. Thanks.
If I would like to filter only failed DTCs, I need to use 190201. I tried and got responses with only active failed DTCs. What if I would like to filter only stored (not active DTCs) anymore?
When requesting the stored DTC(s), we're meaning the old DTC(s), tested ones, so we will not take into consideration bit6 and bit4. So what should the final mask be when asking for DTC ? Is it possible to use 1902AF? I am a little bit confused. I would appreciate if you could reply me.
ECU diag request
Is it possible to generate CAN protocol errors with CANoe?
Tried searching for it but the word "CAN" is not really search friendly.
If you mean disturbing CAN frames, generate error frames then consider trying Vector interface VH6501 - https://vector.com/vi_vh6501_en.html
It's successor of deprecated product named CANstress. Integrates seamlessly with CANoe/CAPL.
yes, you can create error frame in CANoe. use IG block and select special frame option in IG configuration. then press send now button to transmit.
Yes, CAN protocol errors can be generated with CANoe. A detailed example can be found here under Online Vector Help in CANoe (by clicking the help symbol in the CANoe tool): CAPL Functions » CAN » on errorFrame
This is YouTube's 500 page. Can anyone help decode this information?
<p>500 Internal Server Error<p>
Sorry, something went wrong.
<p>A team of highly trained monkeys has been dispatched to deal with this situation.<p>
If you see them, show them this information:
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(Source: this post on HN)
The debug information contained in the (urlsafe-)base64 blob is likely encrypted.
Think about it from Google's perspective: You would want to display a stack trace, relevant headers of the http request and possibly some internal state of the user session to help a developer debug the situation. On the other hand all that information might contain sensitive information that you don't want the general public to see or that might endanger the user if he copy'n pastes it in a public support forum.
If I was to take a guess of the format I would imagine:
A public identifier of the key used for encryption (their servers could use different keys then)
The debug data encrypted using an authenticated encryption scheme
Additional data for error correction when OCR has to be used
For statistical analysis of the format it would be interesting to sample a lot of these error messages and see if some parts of the message are less random than you would expect from encrypted data (symmetrical encrypted data should follow a uniform distribution).
It looks like you are not the only one who is looking for some secret messages in YouTube error page. It seems that you can decode it using Base64.
Here is how:
http://www.cambus.net/decoding-youtube-http-error-500-message/
In a nutshell:
Sadly, contrary to my expectations, there doesn't seem to be any
hidden message… Screw you, highly trained monkeys!
I guess it is just another Easter Egg similar to 'Goats Teleported' performance counter Google Chrome had:
https://plus.google.com/+RobertPitt/posts/PrqAX3kVapn
But I guess unless you look like this, you can't be 100% sure.
It's entirely possible that this is random padding to avoid the "friendly" IE error pages that show if your error page does not contain more than 512 bytes of HTML. It would be base64 encoded if it were simply random bytes.
Imho this is all about customer care.
Actually there would be no need to send the error/debug message to the customer, because, I guess, it's already handled internally.
So:
why do we see this?
and why do they crypt it?
and is there really no hidden message for us?
Although the error might be handled and resolved internally, this does not necessarily satisfy a customer, who is not able to use the product. They pretty much do crypt by a good reason as this debug message might reveal more than a typical admin is used to.
And also there is no need to hide a message for us. Why? Because we NEVER stop until we find something.
I think:
internally the error is dealt with
external users might have something in hand to tell a technician if necessary and in return can get an approximation of ongoing problem
All in all nothing special about it and i think linking e.g. to the inf. monkey theorem is a bit overspectulated...
Error 500 means google has a problem which can not resolve. So when reporting a bug the most important thing is to prepare reproduction steps. So I tried to find an answer of the question "When this happens?"
I found this post in reddit: https://www.reddit.com/r/youtube/comments/40k858/is_youtube_giving_you_500_internal_server_errors/?utm_source=amp&utm_medium=comment_list
As resume:
It happens on desktops (www...), it works ok on mobile version (m...)
It happens for authenticated users. For anonymous users is working fine.
The problem is resolved after cookies are cleaned.
So I would give a direction: try to find the key in the session cookie. I hope my 2 cents will help.
i'd need to stream a subset of elementary stream within a videoclip using VLM as "Video On Demand" media type. Usually i do transcoding so my output stream is something like that
#duplicate{dst="transcode{<options>}, select="es=x,es=y,..."}
in the case of no transcoding, i would like to use "duplicate" module but with an empty (or passthrought ) "dst" chain. Is it possible still to use "duplicate" or i have to use "es" module to select elementary streams instead?
in that case, i have some problems with the "es" module...could someone help me?
thanks in advice, excuse me for my bad english
duplicate{dst=std{access=udp{ttl=10},mux=ts,dst=239.192.15.15:1234},dst=rtp{ttl=10,mux=ts,dst=10.0.0.4,port=5004}}
An example on how to address the dst. you must send it somewhere right?
Regarding the ES I think you're on the right track
es=: duplicate only the elementary stream with the selected id.
VLC Duplicate help
I would like obtain a list of all OIDs in the MIBs that are loaded on a manager and display it to users so that they can choose which MIB object to perform the GET/SET request. I would also like to obtain the syntax and max-access of the object. I'm programming using C++. I want to parse the MIBs to obtain the OIDs, not use snmpwalk. I am trying to use the Net-SNMP MIB_API. I've looked at the manual page but am not clear of how to use the functions to achieve what I want to do.
I see that read_all_mibs() is already called when we call init_mib(). That means I don't need to call read_all_mibs() again, right? Could anyone please guide on what is the next step after init_mib() that I should do.
Any help would be much appreciated. Thanks.
You should look at the apps/snmptranslate.c file for an example of how to walk the loaded mib tree to get information like the syntax and max-access details.
And, no, if you call init_snmp() or init_mib() you don't need to call read_all_mibs()