Your video gives me an opportunity to test multiple video players. The 480Hz mode is 960x540 but 640x480 is fine - scaling quality is bad at that, though That's fantastic, probably a world's first attempt of an UltraHFR gameplay recording! mp4 files stutter a lot more than others in other players. It makes a massive difference, some of my.
Test different players, like SMPlayer, Chrome player, Windows Media Player, VLC, etc, until you hit a player that plays smoother. So to more likely grid-fit the playback frames to their specific refresh cycles, you need either (A) a player that intentionally syncs to refresh rate, or (B) a microsecond accurate player that will framepace impeccably accurately. 480Hz means each refresh cycle is only 2 millisecond! So if a player is a fraction of a millisecond late (even 100 microseconds), it could roundoff to the next refresh cycle, especially if it's presented extremely close to the refresh-cycle boundaries. A single millisecond will frame-roundoff too much. You need a microsecond-accurate player, not a millisecond-accurate player. That's why 60fps videos sometimes have 1 stutter every few seconds, because the display was 59.94Hz or 60.035 Hz or whatever. They play framepacing their frames to the video file's internal time, not necessarily synchronized to refresh rate. Players don't always know the refresh rate of the display.
poorly framepaced decoders) but a lot of framepacing is done by the video player itself, or the player can actually de-jitter the framepacing (buffering and synchronizing to refresh cycles). Sometimes graphics drivers fight against us (e.g. It is a big firehose of data.Īn 8K60fps decoder will technically do 1080p960fps at the same bitrate, but there are also other overheads, so add at least a 75% safety margin, so an 8K60fps decoder will be able to be trusted at 480p960fps - they were never designed for such frame rates at real time, but it can be made to work if you are using certain kinds of players that will framepace the output frames accordingly. Yhlee wrote:I do get puzzled by the fact that ffmpeg+MPC-HC cannot produce the 480Hz output as what I see on your webpage.Īre you using low-resolution graphics? 1080p480fps will not be possible on most GPUs.
0 kommentar(er)
