Preview and replace the ALi3510C MenuBackground or Radioback resource using browser-based processing.
Works with ALi3510C .abs firmware. Unlike GX/Sunplus, this chipset does not store its logo as a JPEG or PNG — it stores it as a single-frame MPEG-2 video I-frame (MenuBackground at 1280×720, and/or Radioback at 720×576), since the chip reuses its video decoder to show the boot/menu background. The tool walks the firmware's self-describing partition table to find these sections, then uses an in-browser MPEG-2 encoder/decoder (ffmpeg.wasm, ~25MB, loaded only when you use this tool) to preview the current image and encode your replacement into a same-format frame. Nothing is uploaded anywhere; this runs entirely in your browser.
The firmware's partition table is walked automatically — no fixed offsets are assumed, so this also works with other ALi3510C dumps that follow the same layout.
MenuBackground/Radioback (not the plain NCRC marker used by core boot sections). This tool now recalculates and writes that checksum (CRC-32, MSB-first, poly 0x04C11DB7, init 0xF5B2C7E9, computed over the payload up through its MPEG-2 sequence-end-code) — the formula has been verified byte-exact against multiple real ALi3510C firmware dumps for Radioback. MenuBackground uses the same formula but is not yet independently confirmed. Only the real-size field, the checksum, and the image data itself are updated; the file size and every other section stay byte-identical. Test on a unit you can recover, and always keep a backup of the original firmware before flashing.