Since “Koqit” might be a rebranded Chinese OEM unit, try:
| Resource | Typical Size (Cortex‑A53) | How to Reduce | |----------|--------------------------|----------------| | | 2–4 MiB (depends on max resolution) | Limit max resolution (e.g., 720p → ~1 MiB) or enable de265_set_parameter_int(ctx, DE265_PARAM_LIMITED_OUTPUT, 1); | | Frame‑buffer (YUV420) | width × height × 1.5 bytes (e.g., 1920×1080 ≈ 3 MiB) | Use double‑buffered display RAM, or a hardware scaler that can output directly to a smaller LCD resolution. | | Stack per task | 2–4 KB (FreeRTOS default) | Keep decoder calls inside a single task; avoid deep recursion. | | Flash / ROM | Decoder library ≈ 150 KB (compiled with -Os ) | Strip unused functions ( -ffunction-sections -Wl,--gc-sections ). | koqit v5h h 265 firmware
libde265.a: $(OBJ) $(AR) rcs $@ $^
static de265_decoder_context *ctx = NULL; static SemaphoreHandle_t decoder_mutex = NULL; Since “Koqit” might be a rebranded Chinese OEM
If you are targeting an ARM‑NEON core, enable the NEON flag in config.h : | libde265