How to crop video on Xiaomi Redmi 9 phone: all ways with instructions

Xiaomi Redmi 9 is still a popular choice due to its price and functionality balance, but many users face the need to edit videos directly on the device, clipping is needed to remove unnecessary fragments, prepare content for social networks or just to save space in memory. In this article, we will analyze all the available methods, from built-in tools to specialized applications, and also reveal the nuances that will help avoid typical errors.

The Redmi 9 is a feature that works on the MIUI — It's a Xiaomi-branded shell, where some of the editing functions are hidden in non-obvious sections, and it doesn't support all video formats equally well, like with the video formats.MOV or 4K There may be problems with trimming through standard means. We tested all methods on the current version. MIUI And only those that are guaranteed to work without failures were selected.

Redmi 9 Video Cutting Methods: Comparison of Methods

Before you get to the instructions, it is important to understand which method is right for you, and all methods fall into two categories:

• 📱 Built-in tools -- no installation, but limited in functionality.
• 🛠️ App side – offer advanced features (overlay music, transitions, color correction), but take up space in memory and may contain advertising.

Below is a comparison table of key parameters. Pay attention to the column "Support" 4K": If you are working with high-resolution video, the standard Gallery app may not be able to handle it.

Important: When clipping a video through a standard gallery MIUI Redmi 9 automatically compresses if the original file weighs more than 500 MB. This can degrade quality, especially for high-bitrate rollers. If you are critical to maintain original quality, use CapCut or KineMaster with manual export settings.

Pruning through the standard gallery MIUI

The fastest way, without any additional software, is for simple tasks, when you want to remove the beginning or end of the video. MIUI 12-14 (older versions may have different interfaces).

Open the Gallery app, find the video you want, and tap it. The bottom panel will show you an Edit button (scissors icon). Click on it, then select the Cut tab. Here you will see a timeline with two sliders — move them to highlight the desired snippet. Once you click Save the video will be processed, and the original will remain intact (a copy will be created).

Check the space available (at least 20% of the video size is required)

Close the background applications (especially messengers)

Connect charging if the battery is below 30%

Turn off the mobile internet (to avoid interruption)-->

Limitations of the method:

• ⏱️ Maximum duration of cut fragment - 15 minutes (otherwise the gallery will give an error).
• 🔍 There is no way to cut the middle of the video, just the beginning/end.
• 📉 Automatic compression at file size >500 MB (quality is deteriorating by 15-20%).

⚠️ Warning: If after clipping the video began to "twitch" or artifacts appeared, check the codec of the source file. MIUI It works poorly with videos shot in format HEVC (H.265). The solution is to convert the file into H.264 via Video Converter before trimming.

Pruning in Google Photos: pros and cons

Google Photos is pre-installed on most Xiaomi smartphones and offers more flexible editing tools than the standard gallery, with the main advantage of being able to crop any snippet of video (not just the beginning/end) and add simple effects.

To crop the video:

1. Open Google Photos and find the right video.
2. Slip the Edit button (pencil icon).
3. Select the Cut tab.
4. Move the sliders or use the Manual cropping mode for precise selection of the fragment.
5. Press Save Copy.

Benefits of Google Photos:

• 🎬 The ability to crop the middle of a video (unlike a gallery) MIUI).
• 🌈 Basic filters and color correction are available.
• ☁️ Automatic backup to the cloud (if enabled).

Disadvantages:

• 📉 Strong compression during export (quality may fall by 30-40% for the export market) 4K-video).
• ⏳ The processing takes longer than in the gallery MIUI.
• 🚫 No video support with resolution above 1080p.

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If the video becomes too dark after cropping in Google Photos, try manually enlarging the Exposure option in the Correction section before saving it.

Professional trimming in CapCut and InShot

For users who need advanced features – overlay music, transitions, speed change – CapCut or InShot will be the best choice. Both apps are free (with ads), support 4K And we're going to use the CapCut process, because it's more stable on the Redmi 9 with 4GB of RAM.

Step-by-step instructions for CapCut:

1. Install CapCut from Google Play (weight) ~150 MB).
2. Launch the app and tap the new project.
3. Select the video from the gallery. If the file weighs >1GB, the app will offer to compress it before importing - refuse to lose quality.
4. On the timeline, select the fragment you want to cut and click Separate (scissors icon).
5. Remove unnecessary parts by clicking on them and selecting Remove.
6. Go to Export, select Original resolution and bitrate High.

CapCut vs InShot Comparison for Redmi 9

⚠️ Warning: When working with video longer than 10 minutes in InShot on Redmi 9, you may experience a "Not enough memory" error. Solution: break the video into 5-7 minutes, trim them separately, then combine them using the same InShot or CapCut.

Pruning through the file manager (for experienced users)

If you need to cut video quickly without installing additional apps, you can use the Mi File Manager (pre-installed on all Xiaomi), a method that is suitable for tech-savvy users, as it requires manual settings.

Instructions:

1. Open Files (the folder icon on the desktop).
2. Find the video, hold your finger on it and select Open with it. → Others.
3. In the list of applications, find FFmpeg (if not, install it through Google Play).
4. Enter the command for pruning (example below), replacing the time values with your own.

Example of a command for trimming from the 10th to the 30th second:

ffmpeg -i input.mp4 -ss 00:00:10 -to 00:00:30 -c copy output.mp4

Explanation to the team:

• -i input.mp4 — Source file (replace with your video name).
• -ss 00:00:10 — pruning-time (10 seconds).
• -to 00:00:30 — time-end (30 seconds).
• -c copy – copying streams without transcoding (preserving quality).
• output.mp4 — output.

Advantages of the method:

• 🎯 Precise pruning to milliseconds.
• 📈 No loss of quality (when used) -c copy).
• 🛠️ Support for all formats (MKV, AVI, MOV).

⚠️ Note: If you enter a command with a “Permission denied” error, move the video to the Download folder or to the Download folder. SD-The file system MIUI Restricts access to some directories for third-party utilities.

Optimizing video after trimming

Trimming is just the first step, and to make sure that the video takes up less space and loads faster on social media, we recommend optimizing its settings. Here are the key tips for Redmi 9:

• 📱 For Instagram/Stories: Permission 1080×1920 (vertical), bitrate 4–6 Mbit/s, format MP4.
• 🎵 For TikTok: Permission 1080×1920, length 60 seconds, format MP4 codeced H.264.
• 💾 Reduce bitrate to 2-3 Mbps (quality will not suffer almost).

To optimize, use the Video Compress app (free, no ads).

1. Import cropped video.
2. Select the target permission (for example, 720p save space).
3. Set the bitrate manually (optimally 3 Mbps for Full) HD).
4. Turn off the option to Improve the quality (it only increases the file size).

Table of recommended settings for social networks:

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For videos that will be viewed on the phone, the optimal bitrate is 3-4 Mbit / s. Higher values will not give a noticeable improvement in quality, but will significantly increase the file size.

Frequent Mistakes and How to Avoid Them

When you crop up videos on Redmi 9, users often face typical problems, and let's look at the most common and ways to solve them:

• 🔄 Video is not saved: Check the free space on the device (needs at least 1 GB to process).If memory is scarce, transfer files to the device SD-map.
• 🎞️ Artifacts after pruning: This is due to codec incompatibility.Convert video to H.264 before cropping through Video Converter.
• ⏱️ Long processing: Close all background apps (especially games and instant messengers). 4K, Use CapCut in Quick Export Mode.
• 🔊 Missing sound: 90% of the time it's due to audio track format.In CapCut, go to Audio → Remove the sound, then add it back.

A specific problem for Redmi 9: When you crop up videos shot on the front camera, you can get a green tint. MIUI for a camera with a resolution of 8 MP:

1. Cut the video to CapCut.
2. Go to Correction. → Colour.
3. Reduce the saturation parameter by 10-15%.

FAQ: Answers to popular questions