diff options
| author | Xiang, Haihao <haihao.xiang@intel.com> | 2012-01-11 15:12:35 +0800 |
|---|---|---|
| committer | Xiang, Haihao <haihao.xiang@intel.com> | 2012-01-12 13:36:35 +0800 |
| commit | c75833d3dd4d0f5b6eed6f0be410c7321f889db5 (patch) | |
| tree | 7dc27fc6f1c5103b20096be6da4f55b5325d5c66 | |
| parent | 4aeaa296febf2f71200ff30380902e2c80cbf679 (diff) | |
| download | libva-c75833d3dd4d0f5b6eed6f0be410c7321f889db5.tar.gz | |
Modify the interface of Quantization table for JPEG decoding
The user application will send up to 4 quantization table to driver,
and driver will select the right quantization table for each component
via quantiser_table_selector. The quantization elements are specified
in zig-zag scan order
Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
| -rw-r--r-- | va/va.h | 20 |
1 files changed, 5 insertions, 15 deletions
@@ -719,22 +719,12 @@ typedef struct _VAEncPictureParameterBufferJPEG } VAEncPictureParameterBufferJPEG; /* data struct for JPEG decoding */ -/* Indexes for JPEG QUANTIZER MATRIX */ -#define VA_JPEG_QUANTIZER_MATRIX_Y 0 -#define VA_JPEG_QUANTIZER_MATRIX_U 1 -#define VA_JPEG_QUANTIZER_MATRIX_V 2 -#define VA_JPEG_QUANTIZER_MATRIX_A 3 - -/* Maskes for JPEG QUANTIZER MATRIX */ -#define VA_JPEG_QUANTIZER_MATRIX_Y_MASK (1 << VA_JPEG_QUANTIZER_MATRIX_Y) -#define VA_JPEG_QUANTIZER_MATRIX_U_MASK (1 << VA_JPEG_QUANTIZER_MATRIX_U) -#define VA_JPEG_QUANTIZER_MATRIX_V_MASK (1 << VA_JPEG_QUANTIZER_MATRIX_V) -#define VA_JPEG_QUANTIZER_MATRIX_A_MASK (1 << VA_JPEG_QUANTIZER_MATRIX_A) - typedef struct _VAIQMatrixBufferJPEG { - unsigned int quantizer_matrix_mask; - unsigned char quantizer_matrix[4][64]; + unsigned char quantiser_matrix[4][64]; /* quantiser_matrix[Tq][64] (Tq=0,1,2,3) specifies a + * quantization table for destination Tq in zig-zag + * scan order + */ } VAIQMatrixBufferJPEG; #define VA_JPEG_SOF0 0xC0 @@ -767,7 +757,7 @@ typedef struct _VAPictureParameterBufferJPEG unsigned char component_id; unsigned char h_sampling_factor; unsigned char v_sampling_factor; - unsigned char quantizer_table_index; + unsigned char quantiser_table_selector; /* Tqi, quantization table destination selector */ } components[4]; /* ROI (region of interest), for JPEG2000 */ |