В сообщении от Friday 07 August 2020 20:16:52 вы написали: > On Thu, 6 Aug 2020, Andrew Randrianasulu via Cin wrote: > > > It worked at around 7 fps for 1080p h264 source in RGBA-float project ... > > Decoding with mplayer was fine if I set CPU to on-demand performance, > > but just 4x 1.4Ghz of my AMD FX 4300 was not enough for single stream > > decode. > > > > This codec was rumored to be fast for both encode and decode, guess ffmpeg > > implementation not very fast yet ... > > Mplayer can sometimes be too slow at decoding full HD H.264. I think, > because it is trying to visualize video with too much accuracy, while some > other players do it simpler (and therefore faster). > > To me, sometimes the following options helped, mplayer was accelerated > without any visible degrade in quality: > > mplayer -autosync 30 > mplayer -lavdopts lowres=1 > mplayer -lavdopts fast > mplayer -lavdopts skiploopfilter=nonkey
Yeah, those work on h264 and some other video codecs (I tried lowres on mpeg2/dv/mjpeg). But cineformHD decoding doesn't like lowres (gives errors and black window), probably not implemented yet .... mplayer /dev/shm/cineformhd.mov -quiet -vo gl -lavdopts lowres=1 MPlayer SVN-r38192-5.5.0 (C) 2000-2020 MPlayer Team 226 audio & 470 video codecs do_connect: could not connect to socket connect: No such file or directory Failed to open LIRC support. You will not be able to use your remote control. Playing /dev/shm/cineformhd.mov. libavformat version 58.46.101 (internal) libavformat file format detected. [mov,mp4,m4a,3gp,3g2,mj2 @ 0x576a8aa0]Protocol name not provided, cannot determine if input is local or a network protocol, buffers and access patterns cannot be configured optimally without knowing the protocol [lavf] stream 0: video (cfhd), -vid 0 [lavf] stream 1: audio (aac), -aid 0, -alang rus VIDEO: [CFHD] 1920x1080 24bpp 29.970 fps 87349.2 kbps (10662.7 kbyte/s) [gl] using extended formats. Use -vo gl:nomanyfmts if playback fails. ========================================================================== Opening video decoder: [dshow] DirectShow video codecs Win32 LoadLibrary failed to load: /usr/lib/codecs/CFDecode2.ax Warning: DS_Filter() could not open DirectShow DLL. (DLL=CFDecode2.ax) Failed to create DirectShow filter ERROR: Could not open required DirectShow codec CFDecode2.ax. You need to upgrade/install the binary codecs package. Go to http://www.mplayerhq.hu/dload.html VDecoder init failed :( Opening video decoder: [vfw] Win32/VfW video codecs Loading codec DLL: 'cinevfw.dll' Win32 LoadLibrary failed to load: /usr/lib/codecs/cinevfw.dll Can't open library cinevfw.dll ICOpen failed! unknown codec / wrong parameters? VDecoder init failed :( Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family libavcodec version 58.92.100 (internal) [cfhd @ 0x577feea0]The maximum value for lowres supported by the decoder is 0 Selected video codec: [ffcfhd] vfm: ffmpeg (FFmpeg Cineform HD) ========================================================================== Clip info: major_brand: qt minor_version: 512 compatible_brands: qt encoder: Lavf58.49.100 Load subtitles in /dev/shm/ ========================================================================== Forced audio codec: mad Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders [aac @ 0x577feea0]Multiple frames in a packet. AUDIO: 44100 Hz, 2 ch, floatle, 129.0 kbit/4.57% (ratio: 16121->352800) Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio)) ========================================================================== AO: [alsa] 48000Hz 2ch floatle (4 bytes per sample) Starting playback... [aac @ 0x577feea0]channel element 0.0 is not allocated Movie-Aspect is 1.78:1 - prescaling to correct movie aspect. VO: [gl] 960x540 => 960x540 Planar 422P 10-bit little-endian Mesa: User error: GL_INVALID_ENUM in glTexParameter(pname=GL_TEXTURE_STORAGE_HINT_APPLE) [cfhd @ 0x577feea0]Invalid lowpass width [cfhd @ 0x577feea0]Invalid lowpass width [cfhd @ 0x577feea0]Invalid lowpass width [cfhd @ 0x577feea0]g frame! Invalid lowpass width Error while decoding frame! [cfhd @ 0x577feea0]Invalid lowpass width [cfhd @ 0x577feea0]Invalid lowpass width Error while decoding frame! [cfhd @ 0x577feea0]Error while decoding frame! Invalid lowpass width [cfhd @ 0x577feea0]Invalid lowpass width Error while decoding frame! [cfhd @ 0x577feea0]Error while decoding frame! Invalid lowpass width [cfhd @ 0x577feea0]Error while decoding frame! Invalid lowpass width [a lot of those] > > The latter option being perhaps most important, with it mplayer was > accelerated drastically on some video. > > Somewhen I have seen also a strange video from some digital camera with the > usual 30 fps actual, but 1000 fps set in metadata. Mplayer tried to display > it at 1000 fps and came in nirvana... Then I tried to override fps, and it > went fine. Yeah, I think I also saw something like this.. Thanks for tips > _______________________________________________________________________________ > > Georgy Salnikov > NMR Group > Novosibirsk Institute of Organic Chemistry > Lavrentjeva, 9, 630090 Novosibirsk, Russia > Phone +7-383-3307864 > Email [email protected] > _______________________________________________________________________________ > > -- Cin mailing list [email protected] https://lists.cinelerra-gg.org/mailman/listinfo/cin
