![]() ![]() ![]() Enable hardware encoding Under the ‘encoder’ drop down select ‘NVENC H.264’. Together they make what is called a GOP (Group of Pictures). Go to settings Go to ‘settings’, then select ‘output’ from the side menu. QPP of course is P-Frame, Predicted Frame, these are the main scene filler between keyframes(I-Frames), they contain the differences between an I-frame, the stuff that changes in a scene, also used for motion estimation. QPB means B-Frame, these are a bidirectional frame used for motion estimation, they require the least amount of bits because they can reference forwards and backwards for info, thus higher compression can be used. 264 video properly and you can only seek between keyframes If you lose an I-frame the stream becomes corrupt until the next I-Frame. QPI means I-Frame (Keyframe), these should be the least compressed frame in your video stream, they are full picture frames, they are what hold video streams together. The lower the QP, the lower the compression done to the frame, higher bitrate is used. ![]() QP is quantizer parameter, it relates to compression. To answer your question above that about QP. If you have MPC-HC, MediaInfo is built in so there is no need to download it. I would leave Keyframe Interval at its default and set consecutive b frame count to 16.ĭownload MediaInfo and pull up the properties of your ShadowPlay recording, It should give you what H.264 settings ShadowPlay used Keyframe Interval and Consecutive B frame count should not affect quality but just change how efficient encoding is. Low Latency should be unchecked because this is a local recording and you do not care about the latency. Leave min and max qp at 1 and 51 and change I,P,B QP in unison to different values. I suggest you try for yourself and see what differences the numbers make in terms of your perceptive quality and file size while not going below 10. Some websites say a QP below 10 is never required. Which value is truly best for you is hard to say. Fixed bitrate More quality for the same value compared to H.265. H.265 is superior because even though it is more computationally complex, it can compress better. So in theory if you wanted the highest possible quality you would set them all to 0 but in practice this is very unlikely what you want. H.264 is x264 (CPU encoding) and NVENC (hardware encoding) H.265 is x265 (CPU encoding) and NVENC HEVC (hardware encoding). Lower QP is always better quality than higher QP but the lower you get the more diminishing returns you get in terms of quality and the more files size will increase. Maybe click on the GIF file for a better view.The main quality options are the QP values. I have tested CPU encoding and Intel's QuickSync encoding, both worked as expected. Note that this issue only happens with NVENC for me.
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