Hey everbody.
I need some advice, how can I convert 4k files using more or less the same FFMPEG command as this:
ffmpeg -i INDSÆT FILSTI -timecode TIDSKODE -c:v mpeg2video -dc 10 -sc_threshold 1000000000 -intra_vlc 1 -non_linear_quant 1 -qmin 1 -qmax 12 -bf 2 -g 12 -pix_fmt yuv422p -color_primaries bt709 -color_trc bt709 -colorspace bt709 -color_range mpeg -b 50M -minrate 50M -maxrate 50M -bufsize 17825792 -rc_init_occupancy 17825792 -flags +cgop+ilme+ildct -acodec pcm_s24le -ar 48000 FILSTI til endfil.MXF
?? The bitrate etc.
MP4 info:
bitrate: 30,2 Mbps
3840*2160 (16:9) 25 FPS
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Check prores or similar codec.
Code:@REM Encoder prores_ks [Apple ProRes (iCodec Pro)]: @REM General capabilities: threads @REM Threading capabilities: slice @REM Supported pixel formats: yuv422p10le yuv444p10le yuva444p10le @REM ProRes encoder AVOptions: @REM -mbs_per_slice <int> E..V.... macroblocks per slice (from 1 to 8) (default 8) @REM -profile <int> E..V.... (from -1 to 4) (default auto) @REM auto E..V.... @REM proxy E..V.... @REM lt E..V.... @REM standard E..V.... @REM hq E..V.... @REM 4444 E..V.... @REM -vendor <string> E..V.... vendor ID (default "Lavc") @REM -bits_per_mb <int> E..V.... desired bits per macroblock (from 0 to 8192) (default 0) @REM -quant_mat <int> E..V.... quantiser matrix (from -1 to 4) (default auto) @REM auto E..V.... @REM proxy E..V.... @REM lt E..V.... @REM standard E..V.... @REM hq E..V.... @REM default E..V.... @REM -alpha_bits <int> E..V.... bits for alpha plane (from 0 to 16) (default 16) @REM ffmpeg -y -i %1 -an -c:v prores_ks -pix_fmt yuva444p10le -profile:v 4444 -qscale:v 2 -vendor ap10 -f mov %~n1_prores4444.mov @ffmpeg -y -i %1 -an -c:v prores_ks -pix_fmt yuv444p10le -profile:v -1 -quant_mat -1 -alpha_bits 0 -qscale:v 2 -f mov %~n1_prores444.mov @pause
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It seems like ffmpeg -y -i %1 -an -c:v prores_ks -pix_fmt yuv444p10le -profile:v -1 -quant_mat -1 -alpha_bits 0 -qscale:v 2 -f mov %~n1_prores444.mov is working. Thank you.
Is it possible to convert an entire folder, if I have 1.mp4, 2.mp4, 3.mp4 - and then convert them into .mov files with the same name as .mp4 files? -
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http://en.wikipedia.org/wiki/Garbage_in,_garbage_out
copy script with ffmpeg to folder and run it there (fastest way) -
mantaining original resolution?
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It's not important: 4K videos I want to view are 360° 3D video, which use "Under/Over" format, i.e. screen split which reduces final resolution to half: of 2160 lines of the original video, first 1080 will be shown in left part of the screen and the others on the right part.
Ok, actually I cannot anyway see all 1080 lines, but as far as I can understand, both 2K (720+720 lines in U/O format) and 4K videos (1080+1080) share same technology.-- Jumpjack -- -
Example video:
http://www.youtube.com/watch?v=dKkcwziglu8
With "4k video downloader" I can download both 4k and 2k versions (ok, I'll leave 4k for next phone ), in "AP9/MKV" or "H264/MP4" format.
I see an "AP9" codec in my list... so I should be able to play it... but I'm not.
Which are other codecs supporting 2k? Is there an official list?-- Jumpjack --
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