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ash3D / UEVideoRecorder

Video record and screenshot taking plugin for Unreal Engine 4.
MIT License
126 stars 35 forks source link

Incompatibility issues with saved videos #9

Open yvasquezmonoku opened 6 years ago

yvasquezmonoku commented 6 years ago

Hello again Thanks ash3D for this amazing plugin. I have a small problem. And is that the generated videos, I can only open them with VLC and other PCs that do not have vlc do not work, out of this, when trying to import them to a video editor (after effect) come out green or generates a compatibility error. Looking at avcodec.h I see that I have several codecs to implement try to implement AV_CODEC_ID_MPEG4, with which I get what I want, the video opens in all the machines and video editors, but the quality of the video is pessimistic (all very pixelated) I try to leave the crf in 0 to not have lost and I select the option of veryslow but the quality is bad. there is a codec that is generic that has good quality. I saw that the h264 should work, but in my case it does not open the videos on all the machines and in any video editor. Maybe it's a bad configuration of mine. Thanks again for the help.

ash3D commented 6 years ago

Hello @yvasquezmonoku. Preset/crf settings are specific for x264 library which is used internally in FFmpeg for h264 format. It is passed as additional parameters and ignored if other encoder used. Thus for MPEG4 you should use other means to adjust performance/quality/compression ratio. For instance you may try to directly specify bitrate, look FFmpeg doc/samples for more info.

yvasquezmonoku commented 6 years ago

Thank you very much for the information. Looking at the videorecorder.cpp I see the function where the h264 is generated depending on the configuration given in unreal with the StartRecord function. Then a configuration was made increasing the bitRate so that the mpg4 had better quality. But for some reason this configuration is simply omitted. I'm still investigating how to make a video that is compatible with the player by default windows and after effects. Again, thank you very much for the help.