Lists all JPEG tag identifiers.

Values:

IGMDTAG_ID_JPG_FORMAT	JPEG metadata format identifier.
IGMDTAG_ID_JPG_JFIF_HEADER	JFIF header.
IGMDTAG_ID_JPG_JFIF_VERSION	JFIF version.
IGMDTAG_ID_JPG_JFIF_UNITS	JFIF resolution unit.
IGMDTAG_ID_JPG_JFIF_X_RES	JFIF X resolution.
IGMDTAG_ID_JPG_JFIF_Y_RES	JFIF Y resolution.
IGMDTAG_ID_JPG_THUMB_WIDTH	JFIF thumbnail width.
IGMDTAG_ID_JPG_THUMB_HEIGHT	JFIF thumbnail height.
IGMDTAG_ID_JPG_THUMB_DATA	JFIF thumbnail data. Used internally.
IGMDTAG_ID_JPG_JFIF_EX_HEADER	JFIF extension header.
IGMDTAG_ID_JPG_JFIF_EX_CODE	JFIF extension code.
IGMDTAG_ID_JPG_FRAME_PRECISION	SOF Precision.
IGMDTAG_ID_JPG_FRAME_LINES	SOF Lines.
IGMDTAG_ID_JPG_FRAME_SAMPPL	SOF Samples Per Line.
IGMDTAG_ID_JPG_FRAME_COMPS	SOF Number of components.
IGMDTAG_ID_JPG_SCAN_COMPS	Number of components in the scan.
IGMDTAG_ID_JPG_SCAN_SP_START	Scan spectral start.
IGMDTAG_ID_JPG_SCAN_SP_END	Scan spectral end.
IGMDTAG_ID_JPG_SCAN_AH_AL	Scan AH, AL.
IGMDTAG_ID_JPG_PHOT_HEADER	Photoshop resources identifier.
IGMDTAG_ID_JPG_SOF0_SIZE	SOF0 segment size.
IGMDTAG_ID_JPG_SOF1_SIZE	SOF1 segment size.
IGMDTAG_ID_JPG_SOF2_SIZE	SOF2 segment size.
IGMDTAG_ID_JPG_SOF3_SIZE	SOF3 segment size.
IGMDTAG_ID_JPG_DHT_SIZE	DHT segment size.
IGMDTAG_ID_JPG_SOS_SIZE	SOS segment size.
IGMDTAG_ID_JPG_DQT_SIZE	DQT segment size.
IGMDTAG_ID_JPG_APP0_SIZE	APP0 segment size.
IGMDTAG_ID_JPG_APP1_SIZE	APP1 segment size.
IGMDTAG_ID_JPG_APP2_SIZE	APP2 segment size.
IGMDTAG_ID_JPG_APP3_SIZE	APP3 segment size.
IGMDTAG_ID_JPG_APP4_SIZE	APP4 segment size.
IGMDTAG_ID_JPG_APP5_SIZE	APP5 segment size.
IGMDTAG_ID_JPG_APP6_SIZE	APP6 segment size.
IGMDTAG_ID_JPG_APP7_SIZE	APP7 segment size.
IGMDTAG_ID_JPG_APP8_SIZE	APP8 segment size.
IGMDTAG_ID_JPG_APP9_SIZE	APP9 segment size.
IGMDTAG_ID_JPG_APP10_SIZE	APP10 segment size.
IGMDTAG_ID_JPG_APP11_SIZE	APP11 segment size.
IGMDTAG_ID_JPG_APP12_SIZE	APP12 segment size.
IGMDTAG_ID_JPG_APP13_SIZE	APP13 segment size.
IGMDTAG_ID_JPG_APP14_SIZE	APP14 segment size.
IGMDTAG_ID_JPG_APP15_SIZE	APP15 segment size.
IGMDTAG_ID_JPG_COM_SIZE	COM segment size.
IGMDTAG_ID_JPG_SOF0	Baseline DCT.
IGMDTAG_ID_JPG_SOF1	Extended sequential DCT.
IGMDTAG_ID_JPG_SOF2	Progressive DCT.
IGMDTAG_ID_JPG_SOF3	Lossless (sequential).
IGMDTAG_ID_JPG_DHT	Huffman tables.
IGMDTAG_ID_JPG_SOS	Start of Segment.
IGMDTAG_ID_JPG_DQT	Quantization tables.
IGMDTAG_ID_JPG_DRI	Restart Interval.
IGMDTAG_ID_JPG_APP0	Application marker - JFIF header (APP0).
IGMDTAG_ID_JPG_APP1	Application marker - first.
IGMDTAG_ID_JPG_APP2	Application marker - 2.
IGMDTAG_ID_JPG_APP3	Application marker - 3.
IGMDTAG_ID_JPG_APP4	Application marker - 4.
IGMDTAG_ID_JPG_APP5	Application marker - 5.
IGMDTAG_ID_JPG_APP6	Application marker - 6.
IGMDTAG_ID_JPG_APP7	Application marker - 7.
IGMDTAG_ID_JPG_APP8	Application marker - 8.
IGMDTAG_ID_JPG_APP9	Application marker - 9.
IGMDTAG_ID_JPG_APP10	Application marker - 10.
IGMDTAG_ID_JPG_APP11	Application marker - 11.
IGMDTAG_ID_JPG_APP12	Application marker - 12.
IGMDTAG_ID_JPG_APP13	Application marker - 13.
IGMDTAG_ID_JPG_APP14	Application marker - 14.
IGMDTAG_ID_JPG_APP15	Application marker - last.
IGMDTAG_ID_JPG_COM	Comment value.