![]() Though have gotten speed-ups for parallel encodes on lower resolution videos. Running two 1080p encodes in parallel to each other compared to a single one, ![]() On the RPi4 I didn’t observe much overall speed-up To encode, and will then encode them all using FFmpeg.įBED can run multiple encodes in parallel by running multiple FFmpeg subprocesses, Just 8-10 FPS when using the libx264 CPU decoder.įigure 3: The FFmpeg Batch Encoding DashboardįBED takes the number of parallel encodes to run and a list of files or directories Using the hardware encoder the Pi can encode this 1080p video at 53-60 FPS, compared to Now we get a correct video output, powered by hardware accelerated encoding! ffmpeg -i video.mp4 -c:v h264_v4l2m2m -b:v 8M -c:a copy test.mp4 With FFmpeg 4.3 built and in our path, we can try again with the h264_v4l2m2m encoder. configure -prefix = ` pwd `/install \ -enable-gpl \ -enable-nonfree \ -arch =aarch64 \ -enable-libaom \ -enable-libass \ -enable-libfdk-aac \ -enable-libfreetype \ -enable-libmp3lame \ -enable-libopus \ -enable-libvorbis \ -enable-libvpx \ -enable-libx264 \ -enable-libx265 \ -enable-libxml2 \ -enable-libwebp \ -enable-libdrm Instead you can install to ~/bin/ as in the guide, or in the repo directory (as I do here),Īnd add the directory with the binaries for ffmpeg and ffprobe to your $PATH. Mentioned in the guide to get support for libx264/265 CPU encoding and any others you want.Īs with the guide, I recommend not installing to /bin/ to avoid conflicts with the system package manager. Since this will replace your install of ffmpeg, you’ll also want to setup the third party libraries First, we can grab the source for 4.3 from Github: git clone -depth 1 -branch release/4.3 follow the build guide for Ubuntu. The version of FFmpeg distributed in apt (4.2.4) is missing some commits thatįix this issue, which didn’t make it in til release 4.3. The h264_v4l2m2m encoder, the results are not very good: However, if you install ffmpeg from apt and use Is the new API that folks are moving forward with. Which is supported on the Raspberry Pi 4 and a 64-bit OS. Instead, FFmpeg provides the h264_v4l2m2m for hardware accelerated encoding/decoding Like the h264_omx encoder is considered deprecated Would work, but I didn’t test that (it seems a bit iffy). These continue to not be found, as this package provides different libraries Even after installing libomxil-bellagio-dev If you try running this on a 64-bit OS you’ll get errors that libOMX_Core.soĪnd libOmxCore.so weren’t found. Some initial searching about what encoder to pick in FFmpeg for hardware acceleratedĮncoding on the Raspberry Pi pointed me to the h264_omx encoder. That I put together to monitor the progress of the encoding tasks. Hardware on a 64-bit OS and the little encoding manager/dashboard, FBED, In this post, I’ll cover how to get FFmpeg setup to use the Pi 4’s video encoding Play around with Python, FFmpeg, and the Pi’s hardware accelerated video encoder. Trimming them down would help save a bit of space, and gives me an excuse to The videos are onĪn external drive being monitored by Plex and shared on the network by Samba,Īnd some are quite large since they’re at a (likely unnecessarily) high bitrate. I got curious about using it to re-encode some videos I had. After setting up Pi-Hole, OpenVPN, Plex, and Samba, Trellis: 2 (might be most important settings I have found for quality)ĭo you use Handbrake to encode videos for playback with Plex? What’s the presets and settings you use to get the best video output? Share with us in the comment section.I recently picked up a Raspberry Pi 4 8GB model to use for some lightweight server tasks Subpixel Motion Estimation: 2-9 (more towards 2 when its live action drama, more towards 9 on actiony animation)ĭeblocking: Do that in main settings if needed Motion Estimation Range: 16-32 (more towards 16 when its live action drama, more towards 32 on actiony animation) Motion Estimation Method: Uneven Multi-Hexagon Weighted B Frames: On Pyramidal B Frames: On (if things don’t work turn this off first) Track 2: AAC with Stereo mixdown 96 bitrate (again compatibility for when the file is played in not Plex- not needed if file is only for Plex!)ī-Frames: 5 if live action, 15 if animation Track 1: AC3 passthrough (This setting maintains compatibility with other devices like AppleTV/PS3.) *Īnamorphic: Strict (Loose is also ok, maybe better for space concerns) Constant quality: 50-70% depending on how much loss you are willing to take for size.
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