Am 10.03.20 um 23:52 schrieb Ted Park:
Hi,
This profile is only available with VAAPI encoder, see
libavcodec/vaapi_encode_h264.c
or amfenc encoder, see libavcodec/amfenc_h264.c
So I tried:
$ ~/Projects/ffmpeg/ffmpeg-git-20200211-amd64-static/ffmpeg -i MVI_1324.MOV
-c:a copy -c:v h264_vaapi -profile:v constrained_baseline -level 4.1
MVI_1324.mov
ffmpeg version N-51730-gf15007afa9-static https://johnvansickle.com/ffmpeg/
Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 8 (Debian 8.3.0-6)
configuration: --enable-gpl --enable-version3 --enable-static
--disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio
--cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp
--enable-libgme --enable-gray --enable-libaom --enable-libfribidi
--enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt
--enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab
--enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264
--enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid
--enable-libzvbi --enable-libzimg
It looks like it was built without support?
What is the difference, if I build it myself concerning support?
Also, I’m curious how you came to the conclusion that you need baseline, 4.1
level stream for it to play? Is that what is generated for preview on the
camera?
Yes.
-Ulf
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