If you are choosing a Raspberry Pi for an FFmpeg YouTube loop, start with the video and audio you plan to send, not the board’s model number. Pi 4 has a documented H.264 hardware-encoding path; Pi 5 uses software video encoders, so the better fit depends on whether your file can be sent as-is or must be encoded.
Neither specification tells you whether a particular setup will keep streaming continuously. Source format, output settings, FFmpeg build, cooling, power and network conditions all matter, and the useful test is the exact workflow you intend to run.
Start with the source file and the required output
A loop stream begins with a file, but YouTube receives a live encoded feed. FFmpeg reads the file, repeats it and sends media to YouTube’s ingest service. If the streams inside that file already suit the output path, FFmpeg may be able to copy them rather than encode the video again. If they do not, some part of the media needs conversion.
Write down what you have before comparing boards: the video codec, resolution, frame rate, audio codec, container and whether the file has variable frame rate or other properties your chosen workflow cannot preserve. A file ending in .mp4 only tells you about its container; it does not establish that its video and audio are suitable for your intended YouTube output.
Then set a target output mode. YouTube’s current live encoder settings list supported settings and recommended bitrates by resolution and frame rate, and recommend RTMPS for ingestion. Check the current table for your chosen mode rather than treating one bitrate as right for every stream. Audio format requirements matter too: YouTube’s guidance lists AAC or MP3 audio for RTMP/RTMPS.
This gives you a more useful decision than “newer is better”. If the source streams are compatible with YouTube’s ingest expectations and the container/protocol path, the Pi may mainly read and forward existing encoded media. If you need a new resolution, frame rate, codec or audio format, the board has additional work to do. Compatibility is not something to assume from the file extension: inspect the streams, check your FFmpeg build and test the actual command.
If you are still deciding whether a single-board computer belongs in the setup at all, the broader Raspberry Pi video-loop overview is a useful companion. This comparison narrows that question to what the two boards do when FFmpeg needs to encode video.
The meaningful difference between Pi 4 and Pi 5
Raspberry Pi’s Pi 4 Model B specifications list H.264 encoding up to 1080p30. That is a published board capability, not a promise that every FFmpeg build can use it, or that any file and output combination will work at that mode indefinitely. Raspberry Pi’s encoding note uses h264_v4l2m2m for its Pi 4 comparison configuration, which shows one relevant hardware-encoding path to investigate.
Raspberry Pi documents Pi 5’s video encoders as software encoders. Its comparison note uses libx264 configurations for Pi 5 and compares them with Pi 4’s h264_v4l2m2m path. In practical terms, when FFmpeg must produce H.264 video, Pi 4 has a documented fixed-function route to consider; on Pi 5, CPU capacity and the software encoder settings become central to the workload.
| Question | Raspberry Pi 4 | Raspberry Pi 5 |
|---|---|---|
| Does the manufacturer document H.264 encoding? | Yes, up to 1080p30 in the Pi 4 Model B specification. | Raspberry Pi describes software video encoders rather than a hardware H.264 encode path. |
| What does the comparison note use? | h264_v4l2m2m hardware encoding. |
libx264 software encoding. |
| What should you focus on if transcoding? | Whether the installed FFmpeg build exposes the hardware encoder and handles your required settings. | CPU load and the selected software-encoder settings under your actual workload. |
| What if the source can be copied? | The encoding capability may not be the deciding factor. | The software-encoding difference may not be relevant for video, though other workflow needs still need testing. |
The table describes paths, not a measured ranking for a file-loop stream. Raspberry Pi’s encoding note covers bounded configurations; it does not establish how your source, audio, FFmpeg build, cooling and network will behave together. Nor does the Pi 4 specification say that its encode feature is available through every program or operating-system image. Verify the encoder exposed by the software you will run.
Raspberry Pi’s camera guidance also discusses a low-latency mode for Pi 5’s rpicam-vid and notes trade-offs in coding efficiency and maximum frame rate. That setting is for the camera tool, not an FFmpeg option, and it is not a shortcut to apply to a prerecorded file loop. For this task, choose FFmpeg’s supported encoder and settings based on the intended output, then test them.
When you may send the source without re-encoding
Stream copying means FFmpeg passes through an already encoded stream instead of decoding and encoding its video again. That can avoid the main video-encoding workload on either board. It is useful only when the source streams and the path to YouTube are compatible with your selected output; copying does not make an incompatible codec, audio track or format acceptable.
Inspect the file first, and treat video and audio as separate questions. A video stream might be suitable to copy while the audio needs conversion, or the reverse. In that case, the workflow may copy one stream and encode the other. Whether the combination works depends on FFmpeg’s build, the input and output formats, and the requirements of YouTube’s current ingest settings.
FFmpeg’s documentation describes -stream_loop as an input option for looping input, and -re as a way to read input at its native rate. They solve different parts of the task: looping makes the file repeat, while real-time pacing prevents FFmpeg from reading the file as quickly as storage allows. The options do not determine whether a particular file can be copied to YouTube, and they do not replace a check of the installed FFmpeg version and available encoders.
Avoid starting from a command copied from an unrelated setup. A command can appear to run while still using an unintended codec path, sending the wrong audio or failing when the input reaches its end. Confirm the input stream details, inspect the encoders available in your installed FFmpeg build and validate YouTube’s ingest status during a private or otherwise appropriate test. YouTube provides the stream URL and key through its live setup; do not put a real key in a public script, screenshot or article.
If you mainly need to decide how to handle repeated recorded material rather than compare boards, the guide to streaming a pre-recorded service on a schedule covers a related publishing workflow. Scheduling and looping are not interchangeable, but both benefit from knowing what the source contains before you plan the live output.
When FFmpeg must encode the video
Transcoding is needed when the source video cannot be sent in the form required by your chosen output. Examples include changing codec, reducing resolution, changing frame rate or correcting a source whose properties do not fit the required ingest settings. Each conversion asks FFmpeg to decode the input and create new encoded video, so the relevant comparison becomes Pi 4’s documented hardware route versus Pi 5’s software encoding path.
On Pi 4, check whether your operating system and FFmpeg build actually expose h264_v4l2m2m and whether it supports the settings you need. Do not infer support just because the board specification lists H.264 encoding. Hardware encoders can have format or control limitations, and the source-to-output path still needs a working test. If the encoder is unavailable or cannot meet your chosen settings, you may be dealing with a different workload than the specification suggests.
On Pi 5, software encoding makes the chosen libx264 settings important. A more demanding output mode or encoder configuration changes how much work the processor must do. A lighter configuration can reduce workload but may change compression efficiency or output quality; the right balance depends on what you are broadcasting and YouTube’s current ingest guidance. Do not select a preset on the basis of another person’s benchmark unless the tested source, build and settings match yours.
Audio can add another conversion path. If you need to transcode audio, choose and verify the required format separately rather than assuming video compatibility settles the whole job. Watch what FFmpeg reports for both streams, and check YouTube’s preview and ingest status for errors. If you cannot explain which streams are being copied and which are being encoded, pause before leaving the process unattended.
If the goal is a continuous loop but you do not want your own computer to be the part that must stay on, another kind of workflow may remove that specific burden: StreamNeo lets you upload the file and provide your YouTube stream key, so the channel can continue without your computer running. It is YouTube-only, and it does not remove the need to have a suitable source file or check your channel and content requirements.
Check resolution, frame rate, audio, cooling and power
Resolution and frame rate set much of the video workload when encoding. Choose a mode that makes sense for the source and the YouTube destination; raising the output above what the material needs can create work without improving the actual content. Consult YouTube’s current ingest table for that exact combination, then test the intended setting rather than extrapolating from “1080p” alone.
Frame rate deserves its own check. A source may have a different or variable frame rate, and converting it to a fixed output rate can require processing that simple stream copy would avoid. Look for uneven playback, repeated or dropped frames in your test, and review FFmpeg’s output for warnings. The fact that the Pi 4 specification states H.264 encoding up to 1080p30 does not validate every frame rate, profile, input format or software configuration.
For audio, verify the source codec and sample properties against the chosen output path. If YouTube’s requirements mean audio conversion is necessary, include that in the test. A video-only assessment can miss a stream that fails because of audio handling, and a silent preview is not evidence that the final workflow is correct.
Cooling and power affect a small computer doing work over long periods. Use an appropriate power supply for the board and setup, keep cooling in place for the intended enclosure and location, and observe whether temperature or throttling changes during the test. Raspberry Pi’s Pi 4 specification lists a USB-C 5V input with a minimum 3A supply; treat that as a manufacturer specification for the Pi 4 Model B, not a comparative power measurement or a guarantee for every attached device. Check the requirements for the exact board and accessories you use.
A fixed wired connection can be a practical choice where it is available, but it does not guarantee usable upstream bandwidth or a stable route to YouTube. Test from the actual location and network you intend to use. If you are setting up a devotional channel, the operational details in the 24/7 bhajan channel guide can help you think beyond the encoder, including what needs attention when the stream is running.
Test the chosen board before relying on it
A short test that only proves the file starts is not a useful test of an always-on plan. Run the actual file, loop setting, output resolution and frame rate, audio path, encoder and ingest protocol you intend to use. Let it run long enough to include multiple file boundaries and normal changes in the source, because looping behavior and end-of-file handling are part of the job.
During that test, watch CPU load, temperature and any throttling indication; observe FFmpeg’s messages for dropped frames, encoder errors and reconnects; and check YouTube’s ingest preview and status. Also pay attention to network interruptions and whether the process behaves as expected after a brief failure. This is a validation procedure, not a claim that either board has been benchmarked here or that passing one test guarantees future operation.
Keep a written record of the board revision, operating system, FFmpeg version, input characteristics, encoder, output settings and power/cooling arrangement. If a test fails, change one factor at a time where practical. For example, first verify whether the failure disappears when you copy rather than encode a compatible video stream; then test a less demanding output mode if you still need transcoding. A log that says only “it dropped” is less useful than one tied to exact settings.
For a real channel, also plan what happens if the process stops, the network drops or the stream key needs attention. Keep the key private and know how to rotate or replace it through YouTube’s current controls. A board test does not establish a recovery plan, and no board capability guarantees continuous streaming. If your channel’s availability matters more than experimenting with local hardware, include the time and attention needed for monitoring and recovery in the comparison, not just the purchase decision.
Before committing, compare the operating options on the pricing page. When the file and channel are ready, start free — 24-hour trial, no card.
FAQ
Is a Raspberry Pi 4 or Pi 5 better for an FFmpeg YouTube loop?
There is no universal winner. Pi 4’s published H.264 encode capability is relevant when you need compatible hardware-assisted encoding and your FFmpeg setup can use it; Pi 5 relies on software video encoders, so its CPU and settings matter if you transcode. If you can copy compatible streams, first check whether encoding is the deciding factor at all.
Can I loop an MP4 to YouTube without encoding it?
Possibly, but the .mp4 extension does not tell you whether its video and audio are suitable for the output. Inspect the streams and check compatibility with YouTube’s current ingest settings and your FFmpeg build. Copy only streams that work in that path; convert any stream that requires a different format.
Does Pi 5 have hardware H.264 encoding for FFmpeg?
Raspberry Pi’s documentation describes Pi 5 as using software video encoders, and its encoding comparison uses libx264 for Pi 5. Do not treat the Pi 5 camera tool’s low-latency option as an FFmpeg setting. Check the installed build and test the encoder path you plan to use.
Will either board reliably run a 24/7 stream?
The documented capabilities do not establish continuous performance for your particular file, settings, cooling, power and network. Test the exact workflow, monitor the stream and plan for recovery if it drops. A successful test is useful evidence about that setup, not a guarantee of future operation.