[ffplay] hevc_v4l2m2m @ 0xa9fc1b10] Could not find a valid device

[sknbl]

RPI4 Linux alarmpi 5.4.81-2-ARCH #1 SMP PREEMPT Thu Dec 10 17:46:32 UTC 2020 armv7l GNU/Linux

[hevc_v4l2m2m @ 0xa9fc1b10] Could not find a valid device [hevc_v4l2m2m @ 0xa9fc1b10] can't configure decoder

./configure \ --enable-neon\ --enable-vdpau\ --enable-vaapi\ --enable-v4l2_m2m --enable-libdrm\ --enable-hwaccels\ --enable-shared\ --disable-static\ --enable-decoder=hevc_rpi\ --prefix=$USR_PREFIX\ --libdir=$LIB_PREFIX\ --incdir=$INC_PREFIX\ --cpu=cortex-a7\ --enable-debug --disable-stripping\ --disable-thumb\ --disable-mmal\ --disable-rpi --enable-sand\ --disable-hwaccel=h264_v4l2request \ --disable-hwaccel=mpeg2_v4l2request \ --disable-hwaccel=vp8_v4l2request \ --disable-hwaccel=vp9_v4l2request \ --enable-libudev --enable-v4l2-request\ --enable-vout-drm\ --extra-cflags="-ggdb $RPI_KEEPS $RPI_DEFINES $RPI_INCLUDES"\ --extra-cxxflags="$RPI_DEFINES $RPI_INCLUDES"\ --extra-ldflags="$RPI_LIBDIRS"\ --extra-libs="-Wl,--start-group -lbcm_host -lmmal -lmmal_util -lmmal_core -lvcos -lvcsm -lvchostif -lvchiq_arm"\

[lrusak]

Can you be more clear? What are you actually doing? Are you self building? Are you using a nightly build?

[sknbl]

Can you be more clear? What are you actually doing? Are you self building? Are you using a nightly build?

hi, @lrusak! Thank you for quick response. I'm trying to build FFmpeg-4.3.1-Matrix-Beta1 separately

[lrusak]

Can you be more clear? What are you actually doing? Are you self building? Are you using a nightly build?

hi, @lrusak! Thank you for quick response. I'm trying to build FFmpeg-4.3.1-Matrix-Beta1 separately

So are you using LibreELEC at all? Are you using the correct v4l2 patchsets? Do you have v4l2 support in your kernel?

[sknbl]

To be precise, i want to be able to play hevc files with ffplay on my rpi4 with archarm on it

[lrusak]

closing as this isn't relevant to LibreELEC. Please use the forum for support.