SMPlayer Support Forum

Hello!
I'm using SMPlayer with mplayer chosen in Windows 7 and I encountered a problem recently when I tried to play a video in Full HD. I usually watch videos in HD and it makes no problem, but with Full HD it slowed down to a crawl, both video and audio. The computing power is definitely enough, the CPU is 50% loaded at most and there's plenty of free memiory and also it runs on GeForce GT630M, but somewhy the playback turns into a mess. I've tried playing with options of codecs and video output in the settings, but it didn't help.
What could be the problem? And is there a tool for a diagnosis?

Question update:
I examined this Full HD video and discovered a parameter I've not met before. Media Info shows a string
Muxing mode: Header stripping
I suspect this might be the point, if so, why does it cause problems?

This topic definitely needs developer's attention.
Hey, developer, are you here?

Can you provide a small sample file with this problem?

Will, the file itself is 18 GiB, so I'll have to cut a piece out of it somehow. I don't know how to do this without changing compression options. And doesn't this strange mode tell you anything? By the way, when I open this file and run mplayer log, here's a part of what it shows:

Too many video packets in the buffer: (200 in 33656968 bytes).
Maybe badly- or non-interleaved stream/file or the codec failed?
Fix the file or try the -ni option (can cause high memory usage).

AO: [dsound] 48000Hz 2ch s16le (2 bytes per sample)

AO: [dsound] 48000Hz 2ch s16le (2 bytes per sample)

AO: [dsound] 48000Hz 2ch s16le (2 bytes per sample)

AO: [dsound] 48000Hz 2ch s16le (2 bytes per sample)

AO: [dsound] 48000Hz 2ch s16le (2 bytes per sample)

AO: [dsound] 48000Hz 2ch s16le (2 bytes per sample)

AO: [dsound] 48000Hz 2ch s16le (2 bytes per sample)

AO: [dsound] 48000Hz 2ch s16le (2 bytes per sample)

AO: [dsound] 48000Hz 2ch s16le (2 bytes per sample)


************************************************
**** Your system is too SLOW to play this! ****
************************************************

I tried cutting a piece out using Avidemux, but it won't save that mode, although I copied audio and video streams as they were. After cutting this piece out MediaInfo and mkvinfo won't show this mode anymore.

Is the problem still happening if you play the video directly with mpv or mplayer?

You mean running in console? Yes, it is. And it shows the same message about buffer.

Do you have this problem with other videos or only this one?

I checked another Full HD video and it's running fine.