FFMPEG converting 4k MP4 files.

[Phillipj]

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

[pandy]

IMHO you can't encode with MPEG-2 anything like UHD.

What is your goal? Target?
Encoding 4k is straight forward in ffmpeg - codec limitation are more important as usually only newer codecs officially support anything higher than 1920x1080.

[Phillipj]

IMHO you can't encode with MPEG-2 anything like UHD.

What is your goal? Target?
Encoding 4k is straight forward in ffmpeg - codec limitation are more important as usually only newer codecs officially support anything higher than 1920x1080.

Im looking to import or link to the files in avid

[pandy]

Check prores or similar codec.

@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

[Phillipj]

Check prores or similar codec.

@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

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?

[pandy]

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?

@for %%1 in (*.mp4) do (ffmpeg.exe -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.mov")

[Phillipj]

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?

@for %%1 in (*.mp4) do (ffmpeg.exe -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.mov")

still ffmpeg.exe if it is on a mac?
So just:

cd volume/folder

and

@for %%1 in (*.mp4) do (ffmpeg.exe -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.mov")

[/QUOTE]

?

[pandy]

still ffmpeg.exe if it is on a mac?

http://en.wikipedia.org/wiki/Garbage_in,_garbage_out

copy script with ffmpeg to folder and run it there (fastest way)

[jumpjack]

How do I use FFMPEG to convert a 4k MP4 file to a format playable on my Samsung S3 Neo smartphone mantaining original resolution?
These are the supported codecs:

[videobruger]

mantaining original resolution?

You don't. Your phones resolution is 720 x 1280 - not 4k.

[jumpjack]

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?