Xiaomi TVs have long ceased to be just a budget alternative to premium brands β they offer an impressive combination of price, picture quality and functionality. 4K-The MediaTek matrix or processor is powerless if your TV doesn't play your favorite video format. MKV s DTS-HD Sound, and the screen shows "Unsupported format"? Or try to run it. AV1-This article will look at all the nuances of compatibility of Xiaomi TVs with video formats, from basic to basic. MP4 exotically FLAC-container.
We've analyzed the official model specifications from the Mi TV 4A to the flagship Xiaomi TV Q2 85, tested the playback on various firmware (including MIUI TV 3.0) and collected the latest data for 2026. You will find not only the list of supported extensions, but also the hidden restrictions on codecs, bitrate and resolution, which the manufacturer does not mention. And if your TV stubbornly refuses to play the file, at the end of the article there is a checklist to diagnose the problem.
1. Basic Video Formats: Whatβs Guaranteed to Work on All Xiaomi TVs
For starters, even Xiaomiβs budget models (like the Mi TV 4S 32) have no problem reproducing standard formats that cover 90 percent of usersβ needs.
- π MP4 (MPEG-4 Part 14) β universal container for video with codecs H.264 (AVC) and H.265 (HEVC). Permits are maintained until 4K@60fps.
- ποΈ MKV (Matroska is a favorite format for pirates and collectors. Xiaomi handles correctly MKV video H.264/H.265 sound-and-sound AAC/MP3, But there are nuances with multi-channel audio (more on that below).
- πΊ MOV/QuickTime β Apple format, which Xiaomi supports partially. H.264 and MPEG-4, But ProRes or Apple ProRes RAW β no.
- πΏ AVI (Audio Video Interleave is an outdated but still common format, and Xiaomi TVs play it from video. MPEG-4 ASP (For example, Xvid or DivX, but there may be problems with synchronizing sound.
It is important to understand that the format β It supports all the codecs inside it, MKV-videofile VP9 sound-and-sound DTS:X It will not be reproduced on most models, even if the container itself is not MKV in the list of compatible. More on that in the next section.
2. Video codecs: which work and which do not
A container (like an MP4 or MKV) is like a box, and a codec is what's inside it. Xiaomi TVs are equipped with MediaTek or Amlogic chips that have hardware support for a limited set of codecs. Here's the full compatibility table:
| Codec | Support for Xiaomi TV | Max. Permission/frames | Notes |
|---|---|---|---|
| H.264 (AVC) | β Yes. | 4K@30fps (on budget models)4K@60fps (on flagships) | The most universal codec. It's not a problem. |
| H.265 (HEVC) | β Yes. | 4K@60fps (with 10-bit color on top models) | It requires more computing resources, and on weak TVs, you can slow down. |
| VP9 | β οΈ Partially. | 4K@30fps | It only works on models with MediaTek MT9638 and later (for example, Xiaomi TV Q2). |
| AV1 | β No (except Xiaomi) TV S Pro 75" 2023) | β | Software decoding is required, which leads to lags. |
| MPEG-2 | β Yes. | 1080p@60fps | It's used in DVD and digital TV. No problem. |
Critical note: if your TV is not playing HEVC-video MKV, The problem may not be in the codec, but in the coding profile. HEVC Main10 (10-bit HDR) models cheaper than Xiaomi TV A Pro. Check your video profile through MediaInfo (free to use) Windows/macOS).
β οΈ Note: On Xiaomi TVs with firmware older MIUI TV 2.5 (release through 2021) codec VP9 can be played with artifacts at bitrates above 20 Mbit / s. The solution is to update the software or convert the file to H.265.
Support for HDR and extended formats: Dolby Vision, HDR10+, HLG
Xiaomi mid-range and premium TVs (starting with the 2020 Mi TV Q1) support hardware decoding for HDR, but there are some important nuances:
- π HDR10 β It works on all models with a label "HDR" Maximum brightness is limited to 400 nits on budget TVs and 1,000 nits.+ thread on flagships (for example, Xiaomi) TV S Pro).
- π¬ Dolby Vision β only supported on MediaTek chip models MT9638 and newer (Xiaomi) TV Q2, Xiaomi TV Not all Dolby Vision profiles work correctly, such as Dolby Vision 8.1 (used by Disney).+) may appear as normal HDR10.
- π HDR10+ β The only support available is Xiaomi. TV Q2 75" and Xiaomi TV S Pro 85.β In practice, dynamic metadata is not always processed correctly.
- π‘ HLG (Hybrid Log-Gamma β works on all models with the HDR, But only when watching TV on the air (DVB-T2) through HDMI. Files from HLG containerized MKV reproduce SDR.
To check which one is exactly which HDR-The format used in your file, open it in VLC Player (on PC) and see the codec information (Ctrl) + J. If it is specified therein hev1 (HEVC s HDR), But the picture is dim on the TV, which means your model doesn't support the static metadata of the file.
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If HDR-The video looks too dark, try manually turning on the mode "HDR" in the settings of the picture (Settings) β Display and sound β Picture mode β HDR). Sometimes self-determination works incorrectly.
4 Audio codecs: why sound can't be played
Video audio problems are one of the most common complaints of Xiaomi TV owners, because the TVs support a limited set of audio codecs, and if your file contains, for example, DTS-HD MA or TrueHD, the sound will not be at all or it will be played in a stripped down quality.
| Audio codec | Support | Max. Channels. | Notes |
|---|---|---|---|
| AAC | β Yes. | 5.1 | The main codec for streaming (YouTube, Netflix). |
| MP3 | β Yes. | 2.0 | Old, but still found in files. |
| AC3 (Dolby Digital) | β Yes. | 5.1 | It works only through HDMI or in MKV/MP4 files. |
| E-AC3 (Dolby Digital Plus) | β οΈ Partially. | 5.1 | On models up to 2022, it is reproduced as AC3 (loss of quality). |
| DTS | β No. | β | All options (DTS-HD, DTS:X) are not supported. |
If your file uses an unsupported audio codec, there are two ways out:
- Recode the sound to AAC or AC3 using FFmpeg or HandBrake.
- Connect the TV to an external sound system via HDMI ARC or optical (TOSLINK). Some receivers (such as the Yamaha RX-V4A) can decode DTS on their own.
β οΈ Attention: On Xiaomi TVs with firmware MIUI TV 1.x (release until 2019) when playing files with multichannel sound (AC3 5.1) may lose the center(s) of the dialogue, the solution is to update the software or apply the downmix to the stereo in the player settings.
5. Resolution and bitrate: hidden restrictions
Even if format and codecs are supported, the TV may refuse to play the file due to exceeding resolution or bitrate limits.
- π Budgetary models (Mi) TV 4A/4S, chip T962):
- π Mid-segment (Mi) TV Q1/Q2, MediaTek chip MT9611/MT9638):
- π Flagships (Xiaomi) TV S Pro, MediaTek chip MT9950):
To check the bitrate of your file, use MediaInfo or VideoHelp. If the bitrate exceeds your modelβs limits, try reducing it through HandBrake with the settings:
HandBrakeCLI -i input.mkv -o output.mkv -e x265 -b 50000 -x "hdr10=1" --aencoder aac --ab 320This command recodes the video to H.265 with a bitrate of 50 Mbps and stores HDR, and converts the sound to AAC 320 kbps.
What do you do if the video slows down?
Reproduction problems: checklist for diagnosis
If your Xiaomi TV refuses to play the file, go through this list:
Make sure that the video codec is supported (see table above)
Check the audio track (DTS is not played)
Reduce bitrate if it exceeds your modelβs limits
Update the TV firmware to the latest version-->
If nothing helps, try playing the file through external devices:
- π₯οΈ Android TV Box (e.g. Xiaomi Mi Box S) β supports more codecs than the TVβs built-in player.
- π» Laptop/PC via HDMI β If the file is playing on a computer but not on TV, the problem is the TV.
- π¦ DLNA-server (e.g. Plex or Kodi) β some servers transcode video on the fly with TV capabilities.
Last tip: If you often experience playback issues, install an alternative player from Google Play (like VLC or MX Player) on your TV, which supports more formats than the standard Xiaomi Video app.
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On Xiaomi TVs with Android TV 9.0 and later (release after 2020), you can install third-party players that bypass the limitations of the built-in software.
7. Model comparison: who knows what
To avoid guessing whether your TV supports a particular format, we have compiled a comparison table for the popular Xiaomi TV series. Pay attention to the year of release - firmware for the same models may differ.
| Model | Chip. | Max, permission. | VP9 | Dolby Vision | DTS |
|---|---|---|---|---|---|
| Mi TV 4A (2018) | Amlogic T962 | 4K@30fps | β | β | β |
| Mi TV 4S (2020) | MediaTek MT9611 | 4K@60fps | β (only 1080p) | β | β |
| Xiaomi TV Q1 (2021) | MediaTek MT9638 | 4K@120fps | β (4K@30fps) | β | β |
| Xiaomi TV Q2 (2022) | MediaTek MT9638 | 4K@120fps | β (4K@60fps) | β (including Dolby Vision IQ) | β |
| Xiaomi TV S Pro (2023) | MediaTek MT9950 | 8K@30fps | β (8K@30fps) | β (profiles) | β |
If your model is not in the table, check its characteristics on the official Xiaomi website or in the documents to the device.