I have installed ffmpeg according to Accelerated Decode with ffmpeg — Jetson Linux Developer Guide documentation.
When I used "ffmpeg -c:v h264_nvv4l2dec " to decode a video, Segmentation fault reported:
sudo ffmpeg -c:v h264_nvv4l2dec -i ~/Documents/sample1.mp4 ~/Documents/test.yuv
ffmpeg version n4.2.7-22-gc613a6774b-1ubuntu0.1 Copyright (c) 2000-2022 the FFmpeg developers
built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1)
configuration: --prefix=/usr --enable-nvv4l2dec --enable-libv4l2 --enable-shared --extra-libs=‘-L/usr/lib/aarch64-linux-gnu/tegra -lnvbuf_utils’ --extra-cflags=-I/usr/src/jetson_multimedia_api/include/ --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/aarch64-linux-gnu --incdir=/usr/include/aarch64-linux-gnu --arch=arm64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ‘/home/hoi/Documents/sample1.mp4’:
Metadata:
major_brand : isom
minor_version : 1
compatible_brands: isom
creation_time : 2008-12-01T05:16:01.000000Z
Duration: 00:02:03.24, start: 0.000000, bitrate: 8236 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x816 [SAR 1:1 DAR 40:17], 7979 kb/s, 23.98 fps, 23.98 tbr, 2500k tbn, 47.95 tbc (default)
Metadata:
creation_time : 2008-12-01T04:50:08.000000Z
handler_name : GPAC ISO Video Handler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 258 kb/s (default)
Metadata:
creation_time : 2008-12-01T05:16:04.000000Z
handler_name : GPAC ISO Audio Handler
File ‘/home/hoi/Documents/test.yuv’ already exists. Overwrite ? [y/N] y
Opening in BLOCKING MODE
NvMMLiteOpen : Block : BlockType = 261
NVMEDIA: Reading vendor.tegra.display-size : status: 6
NvMMLiteBlockCreate : Block : BlockType = 261
Stream mapping:
Stream #0:0 → #0:0 (h264 (h264_nvv4l2dec) → rawvideo (native))
Press [q] to stop, [?] for help
Segmentation fault
However, it is ok with other decoder, like h264.
What else should I to do when using the nvv4l2dec decoder?