The problem here is that VHS is a bit rubbish, and for a very long time was unable to produce a good static pause picture. These recorders index each individual frame with SMPTE (Society of Motion Picture and Television Engineers) timecode, which can then be used to trigger a digitiser board whenever a frame with the required index code is being displayed: As the digitiser board does not capture to disc in real time, the videotape is played several times, with different frames being captured on each pass: Hehe, there’s a document that talks about making Replay video… Unfortunately, it is not sufficient to simply use the freeze frame facility found on most video recorders, as the quality of the still image is so low as to produce an unuseable result when subsequently compressed ( digitiser boards are genlocked to the video, the pause button on a domestic VHS recorder is not!): Broadcast quality videotape recorders such as the Betacam SP (£15,000) can be used to capture still images at the appropriate level of quality for Replay movies. When I install smplayer with mp4, there is not such a problem, when opengl video driver is selected ( as it is automatically chosen by the installation ) ,everything is fine. and in other cases, smplayer doesn't start.I, also, try combining different youtube playback qualities with different video drivers,but it still freezes.
I manually choose different output drivers after the installation ( in preference -video) like ,direct3d/x image, direct 3d shaders ,default, and etc and in some cases, for example when directx is chosen ,video image shows and freezes, time frame is staggering. I installed smplayer with option for mpv in a computer with xp, but when i tried to watch video files in my computer or try to watch youtube,vimeo videos, i hear the sound,time frame is working nicely, but the screen is black, there is no video(Installation process automatically selects opengl video driver).
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