Hi there
Can I suggest you post for us the actual commandline that ends up getting
executed, and the output from ffmpeg, at least until it gets down to the
serious number crunching? The problem may be in the way the command is being
assembled.
P
On Thursday, 4 March 2021, 16:18:15 GMT, Laura Smith via ffmpeg-user
<ffmpeg-user@ffmpeg.org> wrote:
Hi,
Am I missing something simple here ?
The command I am using is based on the example given at
https://google.github.io/shaka-packager/html/tutorials/encoding.html :
ffmpeg -i "${SOURCE}" -c:a copy \
-vf "scale=-2:1080" \
-c:v libx264 -profile:v high -level:v 4.2 \
-x264-params scenecut=0:open_gop=0:min-keyint=72:keyint=72 \
-minrate 6000k -maxrate 6000k -bufsize 6000k -b:v 6000k \
-y "${OUTDIR}/1080/${OUTPFX}_1080.mp4"
ffmpeg -i "${SOURCE}" -c:a copy \
-vf "scale=-2:720" \
-c:v libx264 -profile:v main -level:v 4.0 \
-x264-params scenecut=0:open_gop=0:min-keyint=72:keyint=72 \
-minrate 3000k -maxrate 3000k -bufsize 3000k -b:v 3000k \
-y "${OUTDIR}/720/${OUTPFX}_720.mp4"
The source file (an mp4 output from Adobe premiere) audio is perfect, no
problems. So there is something happening at the ffmpeg stage ?
Where am I going wrong ?
Thanks !
Laura
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