encoding audio by ffmpeg

[alkoon]

Hi Guys .

I have problem, couldn't encode audio with video at the same time by using ffmpeg

This my avs script ( I tried both of them )

V=  FFvideoSource("Detective_Conan.mkv")
A = FFAudioSource("Detective_Conan.mka") 
AudioDub(V,A)
trim(0,400)

FFmpegSource2("Detective_Conan.mp4",atrack=-1)  
trim(0,400)

and this's the command line

avs2yuv 842.avs - | ffmpeg -y -i - -c:v libx264 -c:a aac -b:a 128 output_.mp4

the result is video without audio.

[sneaker]

You can pipe either video or audio this way, not both at the same time. It will work if you open the script directly in ffmpeg (but 32 bit AviSynth needs 32 bit ffmpeg unless used with a virtual file server).

P.S.: 128kbps is "128k", not "128".

[alkoon]

You can pipe either video or audio this way, not both at the same time. It will work if you open the script directly in ffmpeg (but 32 bit AviSynth needs 32 bit ffmpeg unless used with a virtual file server).

P.S.: 128kbps is "128k", not "128".

I know it works if encode directly like

ffmpeg -i Detective_Conan.mkv  -c:a copy -c:v libx264 out.mkv

but I want to encode with avs for filtering at the same time :\

[sneaker]

ffmpeg can directly open avs scripts just like it can directly open mkv files.
ffmpeg -i "842.avs" -c:v libx264 -c:a aac -b:a 128k output_.mp4

Or you can mix multiple inputs:
avs2yuv 842.avs - | ffmpeg -f yuv4mpegpipe -i - -i "Detective_Conan.mkv" -map 0:0 -map 1:1 -c:v libx264 -c:a copy output_.mp4

[alkoon]

ffmpeg can directly open avs scripts just like it can directly open mkv files.
ffmpeg -i "842.avs" -c:v libx264 -c:a aac -b:a 128k output_.mp4

I didn't know that but now

thank you very much

[alkoon]

one more question,

I want to encode in 10bit, so I download this one : https://sourceforge.net/projects/ffmpeg-hi/files/
But it doesn't support avs script input directly !

[pandy]

one more question,

I want to encode in 10bit, so I download this one : https://sourceforge.net/projects/ffmpeg-hi/files/
But it doesn't support avs script input directly !

Please elaborate on this - it looks like very old ffmpeg so i see no point to even consider think to use it for encoding (lack of avisynth seem to be obvious especially for Linux where avisynth simply not exist).

Go go for zeranoe build or build own version of ffmpeg https://github.com/jb-alvarado/media-autobuild_suite - it is more than recommended as you can enable nonfree libs.

[alkoon]

First of all thank you for reply. secondly sorry for delay.

I build my FFmpeg, and I got a note when I tried to encode in 'yuv420p10le' pixel format, the not is " Incompatible pixel format 'yuv420p10le' for codec 'libx264'" in yellow color

this is my tools, following my code

ffmpeg -i "test.avs" -c:v libx264 -pix_fmt yuv420p10le -profile:v high420 -level 4.2 -crf 16 "output.mp4"

shouldn't come an option with "media-autobuild_suite-master" to build FFmpeg 10bit as well as x264/x265?!

I just want to use FFmpeg for encoding video & audio at the same time, so i want to know also if it's possible to do a multiple input so I cant encode video with x264 or libx264
and audio with "-c:a aac" or another audio tool like fdkaac or qaac.

Thanks in advance

[pandy]

You can check ffmpeg build and particular codec capabilities by:

ffmpeg -h encoder=libx264 >ff_libx264.txt

If there is no support for yuv420p10le

Supported pixel formats: yuv420p yuvj420p yuv422p yuvj422p yuv444p yuvj444p nv12 nv16 nv21

then obviously your build is incapable to encode 10 bit.

AFAIK ffmpeg is unable to support 8 and 10 bit libx264 at the same time - consider to use external 10 bit x264.exe encoder - but as i'm not a software guy i will be happy to learn something new (you may try to add switch to force 10 bit compilation).
https://ffmpeg.zeranoe.com/forum/viewtopic.php?t=2270
https://ffmpeg.zeranoe.com/forum/viewtopic.php?t=3672

You can try build own 10 bit libx264 ffmpeg build
https://github.com/rdp/ffmpeg-windows-build-helpers

[alkoon]

Back again.

I just finished download and install "build_locally_gpl_32_bit_option"
after that I got note it says :


so I followed the instruction, but i got an error "command not found"



If couldn't complete 10 bit libx264 ffmpeg build, I want try this one if it's possible ..

... to do a multiple input so I cant encode video with x264 or libx264 and audio with "-c:a aac" or another audio tool like fdkaac or qaac. at the same time?

[pandy]

Some complied ffmpeg binaries are here - https://sourceforge.net/projects/ffmpegwindowsbi/files/ - you may try to find suitable high bitdepth x264 .

[alkoon]

Supported pixel formats: yuv420p yuvj420p yuv422p yuvj422p yuv444p yuvj444p nv12 nv16 nv21

So I went to random_builds >> ffmpeg_git_x26x_high_bitdepth_shared.installed.zip 2016-09-06

Supported pixel formats: yuv420p10le yuv422p10le yuv444p10le nv20le

It's support yuv420p10le but not supported avs script, maybe I have to wait till next update and I hope they support avs script for yuv420p10le

anyway thank you so much pandy or helping =) .

[sneaker]

AviSynth is 8 bit only. For more than 8 bit input you need to use a pipe with the interleaved "hack" or maybe AviSynth+ (though I don't know if ffmpeg supports the AviSynth+ additions). That's for the input - ffmpeg should be able to convert 8 bit input to 10 bit for encoding.

[alkoon]

FFmpegSource2("DC_MV.mp4")

Actually all videos that I used for input are 8bit, and the error that I got is "HD.avs: Unknown errors occurred "

interleaved "hack"

any example!


About avs2yuv not support audio import only wav as I know --"
I will try to use AviSynth+ later.

Thanx again .

[sneaker]

Actually all videos that I used for input are 8bit, and the error that I got is "HD.avs: Unknown errors occurred "

You cannot use 64 bit ffmpeg to open 32 bit AviSynth. Compile ffmpeg as 32 bit.

interleaved "hack"

any example!

http://avisynth.nl/index.php/High_bit-depth_Support_with_Avisynth

About avs2yuv not support audio import only wav as I know --"

I don't know why that is relevant.

[alkoon]

http://avisynth.nl/index.php/High_bit-depth_Support_with_Avisynth

Thanx.