On Wed, Oct 16, 2024 at 12:39:14AM +0300, Andrew Randrianasulu wrote: > вс, 13 окт. 2024 г., 14:40 Anton Khirnov <an...@khirnov.net>: > > > Quoting Andrew Randrianasulu (2024-10-08 14:03:13) > > > I was experimenting with mencoder > > > > > > .... > > > > > > what do you think? ;) > > > > why oh oh god why? > > > > Because mplayer (and mencoder) was first program I successfully compiled > many, many years back and I used mencoder on underpowered ~400 Mhz Celeron > for capturing some video > > https://randrianasulu.livejournal.com/13569.html > > now it may considered obsolete, but underpowered hardware still exist. For > example, PinePhone I was reading about have some 4*1.1 GHz ARM, so ffmpeg > was used there via cli anyway, surprisingly no-one showed mpeg2 line? It > was mjpeg or vp8 (9) or x264 ultrafast .... > > https://www.reddit.com/r/PINE64official/comments/18awye8/pinephone_video_recording/ > > now, x86 and ARM surely different, but if something can be scaled back to > non-MMX Pentium it probably will work on many "obsolete" devices where > latest SIMD sets not available. I actually used some version of Indeo codec > back in ~2001 for recording in ... 176*144 ? on exactly Pentium 1 150Mhz. > Under win 9x, from VirtualDub. I was surprised it worked at all (with > preview!). > > So, I set my AMD FX to 1400 Mhz, fired up mplayer/mencoder under qemu-i386 > to see how it performs with some binary mjpeg encoder (MainConcept's mjpeg, > claimed to reach realtime 640*480 on PII 300 Mhz (from settings probably > one field only)). Found mencoder was doing 25 fps with binary encoder dll,
> ffmpeg 0.5.15 was doing up to 40 fps in mjpeg/i420 if compiled for i486, > ffmpeg 4.4/latest was doing up to 20 fps. Not sure why, but it was > interesting! if you have time you could git bisect to identify tha cause, but it could be more than 1 commit and it could be something boring like a change of quality vs speed settings thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Frequently ignored answer#1 FFmpeg bugs should be sent to our bugtracker. User questions about the command line tools should be sent to the ffmpeg-user ML. And questions about how to use libav* should be sent to the libav-user ML.
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