Date & Time
This HDMI encoder provides multiple options for formatting date and time to suit various regional preferences:
1. Date Formats:
- YYYYMMDD (Year-Month-Day)
- MMDDYYYY (Month-Day-Year)
- DDMMYYYY (Day-Month-Year)
2. Time Formats:
- 24H (24-hour format)
- 12H (12-hour format with AM/PM)
These settings allow users to customize the date and time display according to their specific requirements or local standards.
Text OSD
How can I enable Text Animation on my HDMI encoder for live streaming?
To enable text animation on your HDMI encoder, you need to adjust the "Move" option in the settings:
Move Option:
- True: Enables text animation.
- False: Disables text animation.
Enabling the "Move" option is the standard method for activating text animation, allowing the text to scroll or move dynamically across the screen, enhancing visibility and presentation.
Picture OSD
Why does the OSD Logo disappear after reboot on my streaming encoder?
The OSD logo disappearing after reboot is usually caused by issues with the logo image file. Follow these steps to ensure the logo is displayed correctly after a reboot:
1. File Naming Rules:
- Use only numbers and English letters for the file name.
- Avoid special characters (e.g., !@#$%^&*()) and spaces in the name.
2. Supported File Formats:
- The image should be in JPG or PNG format.
3. Verification Steps:
- Check the file name and format to ensure compliance with the rules.
- Re-upload the logo image to the device and reboot it.
By following these instructions, the OSD logo should remain visible even after a reboot. If issues persist, contact technical support for further assistance.
Why can't I upload a PNG Image as Picture OSD on my IPTV Encoder?
If you're unable to upload a PNG image as the Picture OSD on your HDMI encoder, consider the following troubleshooting steps:
1. Check Image Specifications:
- Ensure the PNG image meets the required dimensions of 200x200 pixels.
2. Verify Firmware Version:
- Older firmware versions might not support PNG images for Picture OSD.
- Upgrade to the latest firmware by visiting the FAQs: Download Firmware for Encoder section.
3. Compatibility Issue:
- If the issue persists even with the correct dimensions and latest firmware, it may be a compatibility limitation.
Following these steps should help resolve the problem.
Why can’t my uploaded OSD image appear exactly the same as the original image on the final video screen?
This is because the encoder uses the YUV 4:2:0 video encoding format, not the RGB 4:4:4 format commonly used in image processing.
In simple terms, YUV 4:2:0 discards about 3/4 of the color information (while fully retaining brightness) in order to achieve efficient video compression while maintaining acceptable subjective image quality. As a result, color images you upload (especially those with fine lines, gradients, or complex logos) will show issues such as blurred color edges and reduced color saturation after encoding. This is a technical limitation of the H.264/H.265 video encoding standards, not a device malfunction.
Recommendations:
- Use high-contrast black-and-white or solid-color text/icons for OSD images whenever possible.
- If a color image is necessary, try increasing the video encoding bitrate (e.g., from 2 Mbps to 4 Mbps or higher) – this can improve the visible result to some extent. But for live streaming, it will be affected too, please refer to article FAQs: Video of Encoder.
- Avoid single-pixel-wide thin lines, dense textures, or vivid gradients.
My image is a PNG with an alpha channel (transparency). Why doesn’t the semi-transparent effect work well?
Because the YUV 4:2:0 format compresses color information, the blending of the alpha channel is also affected. We recommend designing the transparent areas with hard edges (either fully opaque or fully transparent) instead of using gradient transparency. Also, set the encoder’s Transparent parameter to 128 (fully opaque) and pre‑process the transparency in the image itself. This will provide more stable on‑screen results.
Can I change the encoder settings to make the OSD image reach RGB‑level quality?
No. The hardware encoder is fixed to output YUV 4:2:0 format and cannot be changed to RGB 4:4:4. This design is common among consumer‑grade and surveillance‑grade video encoder chips, balancing image quality against storage and transmission bandwidth. If you require extremely high OSD image quality, we recommend overlaying the image during post‑processing, or using a professional‑grade encoder that supports YUV 4:4:4 (note that such devices are significantly more expensive).