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Diffstat (limited to 'libvideoeditor/vss/video_filters/src/M4VIFI_ResizeRGB888toRGB888.c')
| -rwxr-xr-x | libvideoeditor/vss/video_filters/src/M4VIFI_ResizeRGB888toRGB888.c | 278 |
1 files changed, 0 insertions, 278 deletions
diff --git a/libvideoeditor/vss/video_filters/src/M4VIFI_ResizeRGB888toRGB888.c b/libvideoeditor/vss/video_filters/src/M4VIFI_ResizeRGB888toRGB888.c deleted file mode 100755 index deb9d44..0000000 --- a/libvideoeditor/vss/video_filters/src/M4VIFI_ResizeRGB888toRGB888.c +++ /dev/null @@ -1,278 +0,0 @@ -/* - * Copyright (C) 2011 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -/** - ****************************************************************************** - * @file M4VIFI_ResizeYUV420toYUV420.c - * @brief Contain video library function - * @note This file has a Resize filter function - * -# Generic resizing of YUV420 (Planar) image - ****************************************************************************** -*/ - -/* Prototypes of functions, and type definitions */ -#include "M4VIFI_FiltersAPI.h" -/* Macro definitions */ -#include "M4VIFI_Defines.h" -/* Clip table declaration */ -#include "M4VIFI_Clip.h" - -/** - *********************************************************************************************** - * M4VIFI_UInt8 M4VIFI_ResizeBilinearRGB888toRGB888(void *pUserData, M4VIFI_ImagePlane *pPlaneIn, - * M4VIFI_ImagePlane *pPlaneOut) - * @brief Resizes YUV420 Planar plane. - * @note Basic structure of the function - * Loop on each row (step 2) - * Loop on each column (step 2) - * Get four Y samples and 1 U & V sample - * Resize the Y with corresponing U and V samples - * Place the YUV in the ouput plane - * end loop column - * end loop row - * For resizing bilinear interpolation linearly interpolates along - * each row, and then uses that result in a linear interpolation down each column. - * Each estimated pixel in the output image is a weighted - * combination of its four neighbours. The ratio of compression - * or dilatation is estimated using input and output sizes. - * @param pUserData: (IN) User Data - * @param pPlaneIn: (IN) Pointer to YUV420 (Planar) plane buffer - * @param pPlaneOut: (OUT) Pointer to YUV420 (Planar) plane - * @return M4VIFI_OK: there is no error - * @return M4VIFI_ILLEGAL_FRAME_HEIGHT: Error in height - * @return M4VIFI_ILLEGAL_FRAME_WIDTH: Error in width - *********************************************************************************************** -*/ -M4VIFI_UInt8 M4VIFI_ResizeBilinearRGB888toRGB888(void *pUserData, - M4VIFI_ImagePlane *pPlaneIn, - M4VIFI_ImagePlane *pPlaneOut) -{ - M4VIFI_UInt8 *pu8_data_in; - M4VIFI_UInt8 *pu8_data_out; - M4VIFI_UInt32 u32_width_in, u32_width_out, u32_height_in, u32_height_out; - M4VIFI_UInt32 u32_stride_in, u32_stride_out; - M4VIFI_UInt32 u32_x_inc, u32_y_inc; - M4VIFI_UInt32 u32_x_accum, u32_y_accum, u32_x_accum_start; - M4VIFI_UInt32 u32_width, u32_height; - M4VIFI_UInt32 u32_y_frac; - M4VIFI_UInt32 u32_x_frac; - M4VIFI_UInt32 u32_Rtemp_value,u32_Gtemp_value,u32_Btemp_value; - M4VIFI_UInt8 *pu8_src_top; - M4VIFI_UInt8 *pu8_src_bottom; - M4VIFI_UInt32 i32_b00, i32_g00, i32_r00; - M4VIFI_UInt32 i32_b01, i32_g01, i32_r01; - M4VIFI_UInt32 i32_b02, i32_g02, i32_r02; - M4VIFI_UInt32 i32_b03, i32_g03, i32_r03; - - /* Check for the YUV width and height are even */ - if ((IS_EVEN(pPlaneIn->u_height) == FALSE) || - (IS_EVEN(pPlaneOut->u_height) == FALSE)) - { - return M4VIFI_ILLEGAL_FRAME_HEIGHT; - } - - if ((IS_EVEN(pPlaneIn->u_width) == FALSE) || - (IS_EVEN(pPlaneOut->u_width) == FALSE)) - { - return M4VIFI_ILLEGAL_FRAME_WIDTH; - } - - - /* Set the working pointers at the beginning of the input/output data field */ - pu8_data_in = (M4VIFI_UInt8*)(pPlaneIn->pac_data + pPlaneIn->u_topleft); - pu8_data_out = (M4VIFI_UInt8*)(pPlaneOut->pac_data + pPlaneOut->u_topleft); - - /* Get the memory jump corresponding to a row jump */ - u32_stride_in = pPlaneIn->u_stride; - u32_stride_out = pPlaneOut->u_stride; - - /* Set the bounds of the active image */ - u32_width_in = pPlaneIn->u_width; - u32_height_in = pPlaneIn->u_height; - - u32_width_out = pPlaneOut->u_width; - u32_height_out = pPlaneOut->u_height; - - /* Compute horizontal ratio between src and destination width.*/ - if (u32_width_out >= u32_width_in) - { - u32_x_inc = ((u32_width_in-1) * MAX_SHORT) / (u32_width_out-1); - } - else - { - u32_x_inc = (u32_width_in * MAX_SHORT) / (u32_width_out); - } - - /* Compute vertical ratio between src and destination height.*/ - if (u32_height_out >= u32_height_in) - { - u32_y_inc = ((u32_height_in - 1) * MAX_SHORT) / (u32_height_out-1); - } - else - { - u32_y_inc = (u32_height_in * MAX_SHORT) / (u32_height_out); - } - - /* - Calculate initial accumulator value : u32_y_accum_start. - u32_y_accum_start is coded on 15 bits, and represents a value between 0 and 0.5 - */ - if (u32_y_inc >= MAX_SHORT) - { - /* - Keep the fractionnal part, assimung that integer part is coded - on the 16 high bits and the fractionnal on the 15 low bits - */ - u32_y_accum = u32_y_inc & 0xffff; - - if (!u32_y_accum) - { - u32_y_accum = MAX_SHORT; - } - - u32_y_accum >>= 1; - } - else - { - u32_y_accum = 0; - } - - - /* - Calculate initial accumulator value : u32_x_accum_start. - u32_x_accum_start is coded on 15 bits, and represents a value between 0 and 0.5 - */ - if (u32_x_inc >= MAX_SHORT) - { - u32_x_accum_start = u32_x_inc & 0xffff; - - if (!u32_x_accum_start) - { - u32_x_accum_start = MAX_SHORT; - } - - u32_x_accum_start >>= 1; - } - else - { - u32_x_accum_start = 0; - } - - u32_height = u32_height_out; - - /* - Bilinear interpolation linearly interpolates along each row, and then uses that - result in a linear interpolation donw each column. Each estimated pixel in the - output image is a weighted combination of its four neighbours according to the formula: - F(p',q')=f(p,q)R(-a)R(b)+f(p,q-1)R(-a)R(b-1)+f(p+1,q)R(1-a)R(b)+f(p+&,q+1)R(1-a)R(b-1) - with R(x) = / x+1 -1 =< x =< 0 \ 1-x 0 =< x =< 1 and a (resp. b)weighting coefficient - is the distance from the nearest neighbor in the p (resp. q) direction - */ - - do { /* Scan all the row */ - - /* Vertical weight factor */ - u32_y_frac = (u32_y_accum>>12)&15; - - /* Reinit accumulator */ - u32_x_accum = u32_x_accum_start; - - u32_width = u32_width_out; - - do { /* Scan along each row */ - pu8_src_top = pu8_data_in + (u32_x_accum >> 16)*3; - pu8_src_bottom = pu8_src_top + (u32_stride_in); - u32_x_frac = (u32_x_accum >> 12)&15; /* Horizontal weight factor */ - - if ((u32_width == 1) && (u32_width_in == u32_width_out)) { - /* - When input height is equal to output height and input width - equal to output width, replicate the corner pixels for - interpolation - */ - if ((u32_height == 1) && (u32_height_in == u32_height_out)) { - GET_RGB24(i32_b00,i32_g00,i32_r00,pu8_src_top,0); - GET_RGB24(i32_b01,i32_g01,i32_r01,pu8_src_top,0); - GET_RGB24(i32_b02,i32_g02,i32_r02,pu8_src_top,0); - GET_RGB24(i32_b03,i32_g03,i32_r03,pu8_src_top,0); - } - /* - When input height is not equal to output height and - input width equal to output width, replicate the - column for interpolation - */ - else { - GET_RGB24(i32_b00,i32_g00,i32_r00,pu8_src_top,0); - GET_RGB24(i32_b01,i32_g01,i32_r01,pu8_src_top,0); - GET_RGB24(i32_b02,i32_g02,i32_r02,pu8_src_bottom,0); - GET_RGB24(i32_b03,i32_g03,i32_r03,pu8_src_bottom,0); - } - } else { - /* - When input height is equal to output height and - input width not equal to output width, replicate the - row for interpolation - */ - if ((u32_height == 1) && (u32_height_in == u32_height_out)) { - GET_RGB24(i32_b00,i32_g00,i32_r00,pu8_src_top,0); - GET_RGB24(i32_b01,i32_g01,i32_r01,pu8_src_top,3); - GET_RGB24(i32_b02,i32_g02,i32_r02,pu8_src_top,0); - GET_RGB24(i32_b03,i32_g03,i32_r03,pu8_src_top,3); - } else { - GET_RGB24(i32_b00,i32_g00,i32_r00,pu8_src_top,0); - GET_RGB24(i32_b01,i32_g01,i32_r01,pu8_src_top,3); - GET_RGB24(i32_b02,i32_g02,i32_r02,pu8_src_bottom,0); - GET_RGB24(i32_b03,i32_g03,i32_r03,pu8_src_bottom,3); - } - } - u32_Rtemp_value = (M4VIFI_UInt8)(((i32_r00*(16-u32_x_frac) + - i32_r01*u32_x_frac)*(16-u32_y_frac) + - (i32_r02*(16-u32_x_frac) + - i32_r03*u32_x_frac)*u32_y_frac )>>8); - - u32_Gtemp_value = (M4VIFI_UInt8)(((i32_g00*(16-u32_x_frac) + - i32_g01*u32_x_frac)*(16-u32_y_frac) + - (i32_g02*(16-u32_x_frac) + - i32_g03*u32_x_frac)*u32_y_frac )>>8); - - u32_Btemp_value = (M4VIFI_UInt8)(((i32_b00*(16-u32_x_frac) + - i32_b01*u32_x_frac)*(16-u32_y_frac) + - (i32_b02*(16-u32_x_frac) + - i32_b03*u32_x_frac)*u32_y_frac )>>8); - - *pu8_data_out++ = u32_Btemp_value ; - *pu8_data_out++ = u32_Gtemp_value ; - *pu8_data_out++ = u32_Rtemp_value ; - - /* Update horizontal accumulator */ - u32_x_accum += u32_x_inc; - - } while(--u32_width); - - //pu16_data_out = pu16_data_out + (u32_stride_out>>1) - (u32_width_out); - - /* Update vertical accumulator */ - u32_y_accum += u32_y_inc; - if (u32_y_accum>>16) - { - pu8_data_in = pu8_data_in + (u32_y_accum >> 16) * (u32_stride_in) ; - u32_y_accum &= 0xffff; - } - } while(--u32_height); - - return M4VIFI_OK; -} -/* End of file M4VIFI_ResizeRGB565toRGB565.c */ - |