ArDrone SDK 1.8 added

[mardrone] / mardrone / ARDrone_SDK_Version_1_8_20110726 / ARDroneLib / VLIB / video_quantizer.h

diff --git a/mardrone/ARDrone_SDK_Version_1_8_20110726/ARDroneLib/VLIB/video_quantizer.h b/mardrone/ARDrone_SDK_Version_1_8_20110726/ARDroneLib/VLIB/video_quantizer.h
new file mode 100644 (file)
index 0000000..f39bdbe
--- /dev/null
+++ b/mardrone/ARDrone_SDK_Version_1_8_20110726/ARDroneLib/VLIB/video_quantizer.h
@@ -0,0 +1,26 @@
+#ifndef _VIDEO_QUANTIZER_H_
+#define _VIDEO_QUANTIZER_H_
+
+#include <VLIB/video_controller.h>
+
+// (quant > 0)&&(quant < 31) => use table quantization generated with QUANT_I(i,quant) macro
+// quant == 31                                  => old quantization table mode, means QUANT_I(i,2) (backward compatibility)
+#define TABLE_QUANTIZATION 31  // quant transmitted for old TABLE_QUANTIZATION mode
+#define TBL_QUANT_QUALITY 2            // real quant used for old TABLE_QUANTIZATION mode
+
+// quantization macro
+#define QUANT_IJ(i,j,quality) (1 + (1 +(i) + (j))*(quality))
+#define QUANT_I(i,quality) (1 + (1 +(i/8) + (i%8))*(quality))
+
+// Utility functions
+int16_t* do_quantize_intra_mb(int16_t* ptr, int32_t invQuant, int32_t* last_ptr);
+int16_t* do_quantize_inter_mb(int16_t* ptr, int32_t quant, int32_t invQuant, int32_t* last_ptr);
+C_RESULT do_unquantize(int16_t* ptr, int32_t picture_type, int32_t quant, int32_t num_coeff);
+
+// Default quantization scheme
+C_RESULT video_quantizer_init( video_controller_t* controller );
+C_RESULT video_quantizer_update( video_controller_t* controller );
+C_RESULT video_quantize( video_controller_t* controller, video_macroblock_t* macroblock, int32_t num_macro_blocks );
+C_RESULT video_unquantize( video_controller_t* controller, video_macroblock_t* macroblock, int32_t num_macro_blocks );
+
+#endif // _VIDEO_QUANTIZER_H_