menu "JPEG Decoder" config JD_USE_ROM bool "Use TinyJPG Decoder from ROM" depends on ESP_ROM_HAS_JPEG_DECODE default y help By default, Espressif SoCs use TJpg decoder implemented in ROM code. If this feature is disabled, new configuration of TJpg decoder can be used. Refer to REAME.md for more details. config JD_SZBUF int "Size of stream input buffer" depends on !JD_USE_ROM default 512 config JD_FORMAT int depends on !JD_USE_ROM default 0 if JD_FORMAT_RGB888 default 1 if JD_FORMAT_RGB565 choice prompt "Output pixel format" depends on !JD_USE_ROM default JD_FORMAT_RGB888 help Output format is selected at runtime. config JD_FORMAT_RGB888 bool "Support RGB565 and RGB888 output (16-bit/pix and 24-bit/pix)" config JD_FORMAT_RGB565 bool "Support RGB565 output (16-bit/pix)" endchoice config JD_USE_SCALE bool "Enable descaling" depends on !JD_USE_ROM default y help If scaling is enabled, size of output image can be lowered during decoding. config JD_TBLCLIP bool "Use table conversion for saturation arithmetic" depends on !JD_USE_ROM default y help Use table conversion for saturation arithmetic. A bit faster, but increases 1 KB of code size. config JD_FASTDECODE int depends on !JD_USE_ROM default 0 if JD_FASTDECODE_BASIC default 1 if JD_FASTDECODE_32BIT default 2 if JD_FASTDECODE_TABLE choice prompt "Optimization level" depends on !JD_USE_ROM default JD_FASTDECODE_32BIT config JD_FASTDECODE_BASIC bool "Basic optimization. Suitable for 8/16-bit MCUs" config JD_FASTDECODE_32BIT bool "+ 32-bit barrel shifter. Suitable for 32-bit MCUs" config JD_FASTDECODE_TABLE bool "+ Table conversion for huffman decoding (wants 6 << HUFF_BIT bytes of RAM)" endchoice config JD_DEFAULT_HUFFMAN bool "Support images without Huffman table" depends on !JD_USE_ROM default n help Enable this option to support decoding JPEG images that lack an embedded Huffman table. When enabled, a default Huffman table is used during decoding, allowing the JPEG decoder to handle images without explicitly provided Huffman tables. Note: Enabling this option increases ROM usage due to the inclusion of default Huffman tables. endmenu