| Item | How to verify | |------|----------------| | | Dump first few NAL units and compare start‑code patterns with a reference player (e.g., VLC). | | Decoder output | Compute a SHA‑1 of the first decoded frame’s Y‑plane and compare against a known‑good reference (use ffmpeg -i input.hevc -vframes 1 -f rawvideo - ). | | Performance | Measure FPS on target: ticks = xTaskGetTickCount(); decode N frames; fps = N / (ticks / configTICK_RATE_HZ); | | Memory usage | Use the toolchain’s map file ( arm-none-eabi-size ) and runtime heap/stack checkers (e.g., FreeRTOS’s uxTaskGetStackHighWaterMark ). | | Power | Profile with a current meter while decoding a 1080p 30 fps clip; aim for < 1 W on a typical embedded board. | | Error handling | Feed deliberately corrupted NAL units and verify de265_decode() returns an error code, not a crash. |
Insert the USB into the receiver. Navigate to Menu > Installation > USB Upgrade . Select the firmware file and choose the " allcode " mode for a clean install. koqit v5h h 265 firmware
If you can provide a (showing chip markings) or the exact model string from the web interface , I can help narrow down the real manufacturer. Otherwise, treat it as an unbranded OEM unit – firmware will be hard to find. | Item | How to verify | |------|----------------|
while (1) /* Very naive NAL extraction – real files need a proper Annex‑B parser */ f_read(&file, nal_buf, NAL_MAX_SIZE, &br); if (br == 0) break; // EOF | | Power | Profile with a current
Pass these buffers to libde265 via its “user‑data” API if you want to avoid the internal allocator: