Question / Help Some recordings don't play while other ones does

M

mufusion

New Member
Hello,

When im streaming i always let OBS record the streams while streaming, now i wanted to cut all streams of an certain game to an lets play for youtube but some (10 out of 40) of the recordings don't play in the windows player app or in vlc media player while the other work perfectly. The broken files does have an realistic file size but the properties are nearly empty, analysing them with MediaInfo and shark007 also result in nearly nothing, other files recorded at the same day with the same settings and the same game on the same PC work fine. I don't think that the files can be fixed, they just seem to be corrupted, but why? how did that happen and how can i prevent it to happen again?
 
flv is the default and it's changed in your broadcast settings.

The mp4s that are corrupted are corrupted because there was a non-graceful shutdown of the encoder, and that's why we recommend flv.
 
I found the option now, you can choose the format while choosing the File Path, i just schoose the File Path and did not noticed the format, it is always on mp4 if i don't change it to flv, tried it severall times with a new installation. Why is the flv better at crashes than mp4? i though mp4 has better quality than flv.
 
FLV has the necessary format data interleaved into the file starting from the beginning, all of the necessary information for MP4 is at the end.

There is somewhere between no and 0 quality difference between the two, as they define the container, not the contained video and audio formats.
 
So in case of a crash the FLV just stops and works until the crash happened, the mp4 is corrupted because it couldn't finnish, thats also the reason the broken files are that big, the video and audio data is there but the necessary information is missing. But there is no way of getting this video and audio out of the corrupted file ? The problem while using flv is that Sony vegas don't support the container, but it supports the codecs being the same as in mp4 so i just need to rip the streams out of the flv and put them into an mp4, its more work than with mp4 but safer since mp4 has a 25 % chance of being corrupted (10 out of 40 recordings got corrupted for me). I changed the File Output to FLV now. Thank you for your help :)
 
Thank you, i was using a method that uses 2 programms, one to extract from the flv and one (which is just a GUI for mp4box) to put the streams into an mp4, the programm in the guide in your link does this in one programm.
 
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