diff options
Diffstat (limited to 'camera/Encoder_libjpeg.cpp')
| -rw-r--r-- | camera/Encoder_libjpeg.cpp | 543 |
1 files changed, 0 insertions, 543 deletions
diff --git a/camera/Encoder_libjpeg.cpp b/camera/Encoder_libjpeg.cpp deleted file mode 100644 index e11e3bf..0000000 --- a/camera/Encoder_libjpeg.cpp +++ /dev/null @@ -1,543 +0,0 @@ -/* - * Copyright (C) Texas Instruments - http://www.ti.com/ - * - * 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 Encoder_libjpeg.cpp -* -* This file encodes a YUV422I buffer to a jpeg -* TODO(XXX): Need to support formats other than yuv422i -* Change interface to pre/post-proc algo framework -* -*/ - -#include "Encoder_libjpeg.h" -#include "NV12_resize.h" -#include "TICameraParameters.h" - -#include <stdlib.h> -#include <unistd.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <stdio.h> -#include <errno.h> -#include <math.h> - -extern "C" { - #include "jpeglib.h" - #include "jerror.h" -} - -#define ARRAY_SIZE(array) (sizeof((array)) / sizeof((array)[0])) -#define MIN(x,y) ((x < y) ? x : y) - -namespace Ti { -namespace Camera { - -struct integer_string_pair { - unsigned int integer; - const char* string; -}; - -static integer_string_pair degress_to_exif_lut [] = { - // degrees, exif_orientation - {0, "1"}, - {90, "6"}, - {180, "3"}, - {270, "8"}, -}; -struct libjpeg_destination_mgr : jpeg_destination_mgr { - libjpeg_destination_mgr(uint8_t* input, int size); - - uint8_t* buf; - int bufsize; - size_t jpegsize; -}; - -static void libjpeg_init_destination (j_compress_ptr cinfo) { - libjpeg_destination_mgr* dest = (libjpeg_destination_mgr*)cinfo->dest; - - dest->next_output_byte = dest->buf; - dest->free_in_buffer = dest->bufsize; - dest->jpegsize = 0; -} - -static boolean libjpeg_empty_output_buffer(j_compress_ptr cinfo) { - libjpeg_destination_mgr* dest = (libjpeg_destination_mgr*)cinfo->dest; - - dest->next_output_byte = dest->buf; - dest->free_in_buffer = dest->bufsize; - return TRUE; // ? -} - -static void libjpeg_term_destination (j_compress_ptr cinfo) { - libjpeg_destination_mgr* dest = (libjpeg_destination_mgr*)cinfo->dest; - dest->jpegsize = dest->bufsize - dest->free_in_buffer; -} - -libjpeg_destination_mgr::libjpeg_destination_mgr(uint8_t* input, int size) { - this->init_destination = libjpeg_init_destination; - this->empty_output_buffer = libjpeg_empty_output_buffer; - this->term_destination = libjpeg_term_destination; - - this->buf = input; - this->bufsize = size; - - jpegsize = 0; -} - -/* private static functions */ -static void nv21_to_yuv(uint8_t* dst, uint8_t* y, uint8_t* uv, int width) { - if (!dst || !y || !uv) { - return; - } - - while ((width--) > 0) { - uint8_t y0 = y[0]; - uint8_t v0 = uv[0]; - uint8_t u0 = *(uv+1); - dst[0] = y0; - dst[1] = u0; - dst[2] = v0; - dst += 3; - y++; - if(!(width % 2)) uv+=2; - } -} - -static void uyvy_to_yuv(uint8_t* dst, uint32_t* src, int width) { - if (!dst || !src) { - return; - } - - if (width % 2) { - return; // not supporting odd widths - } - - // currently, neon routine only supports multiple of 16 width - if (width % 16) { - while ((width-=2) >= 0) { - uint8_t u0 = (src[0] >> 0) & 0xFF; - uint8_t y0 = (src[0] >> 8) & 0xFF; - uint8_t v0 = (src[0] >> 16) & 0xFF; - uint8_t y1 = (src[0] >> 24) & 0xFF; - dst[0] = y0; - dst[1] = u0; - dst[2] = v0; - dst[3] = y1; - dst[4] = u0; - dst[5] = v0; - dst += 6; - src++; - } - } else { - int n = width; - asm volatile ( - " pld [%[src], %[src_stride], lsl #2] \n\t" - " cmp %[n], #16 \n\t" - " blt 5f \n\t" - "0: @ 16 pixel swap \n\t" - " vld2.8 {q0, q1} , [%[src]]! @ q0 = uv q1 = y \n\t" - " vuzp.8 q0, q2 @ d0 = u d4 = v \n\t" - " vmov d1, d0 @ q0 = u0u1u2..u0u1u2... \n\t" - " vmov d5, d4 @ q2 = v0v1v2..v0v1v2... \n\t" - " vzip.8 d0, d1 @ q0 = u0u0u1u1u2u2... \n\t" - " vzip.8 d4, d5 @ q2 = v0v0v1v1v2v2... \n\t" - " vswp q0, q1 @ now q0 = y q1 = u q2 = v \n\t" - " vst3.8 {d0,d2,d4},[%[dst]]! \n\t" - " vst3.8 {d1,d3,d5},[%[dst]]! \n\t" - " sub %[n], %[n], #16 \n\t" - " cmp %[n], #16 \n\t" - " bge 0b \n\t" - "5: @ end \n\t" -#ifdef NEEDS_ARM_ERRATA_754319_754320 - " vmov s0,s0 @ add noop for errata item \n\t" -#endif - : [dst] "+r" (dst), [src] "+r" (src), [n] "+r" (n) - : [src_stride] "r" (width) - : "cc", "memory", "q0", "q1", "q2" - ); - } -} - -static void yuyv_to_yuv(uint8_t* dst, uint32_t* src, int width) { - if (!dst || !src) { - return; - } - - if (width % 2) { - return; // not supporting odd widths - } - - // currently, neon routine only supports multiple of 16 width - if (width % 16) { - while ((width-=2) >= 0) { - uint8_t y0 = (src[0] >> 0) & 0xFF; - uint8_t u0 = (src[0] >> 8) & 0xFF; - uint8_t y1 = (src[0] >> 16) & 0xFF; - uint8_t v0 = (src[0] >> 24) & 0xFF; - dst[0] = y0; - dst[1] = u0; - dst[2] = v0; - dst[3] = y1; - dst[4] = u0; - dst[5] = v0; - dst += 6; - src++; - } - } else { - int n = width; - asm volatile ( - " pld [%[src], %[src_stride], lsl #2] \n\t" - " cmp %[n], #16 \n\t" - " blt 5f \n\t" - "0: @ 16 pixel swap \n\t" - " vld2.8 {q0, q1} , [%[src]]! @ q0 = yyyy.. q1 = uvuv.. \n\t" - " vuzp.8 q1, q2 @ d2 = u d4 = v \n\t" - " vmov d3, d2 @ q1 = u0u1u2..u0u1u2... \n\t" - " vmov d5, d4 @ q2 = v0v1v2..v0v1v2... \n\t" - " vzip.8 d2, d3 @ q1 = u0u0u1u1u2u2... \n\t" - " vzip.8 d4, d5 @ q2 = v0v0v1v1v2v2... \n\t" - " @ now q0 = y q1 = u q2 = v \n\t" - " vst3.8 {d0,d2,d4},[%[dst]]! \n\t" - " vst3.8 {d1,d3,d5},[%[dst]]! \n\t" - " sub %[n], %[n], #16 \n\t" - " cmp %[n], #16 \n\t" - " bge 0b \n\t" - "5: @ end \n\t" -#ifdef NEEDS_ARM_ERRATA_754319_754320 - " vmov s0,s0 @ add noop for errata item \n\t" -#endif - : [dst] "+r" (dst), [src] "+r" (src), [n] "+r" (n) - : [src_stride] "r" (width) - : "cc", "memory", "q0", "q1", "q2" - ); - } -} - -static void resize_nv12(Encoder_libjpeg::params* params, uint8_t* dst_buffer) { - structConvImage o_img_ptr, i_img_ptr; - - if (!params || !dst_buffer) { - return; - } - - //input - i_img_ptr.uWidth = params->in_width; - i_img_ptr.uStride = i_img_ptr.uWidth; - i_img_ptr.uHeight = params->in_height; - i_img_ptr.eFormat = IC_FORMAT_YCbCr420_lp; - i_img_ptr.imgPtr = (uint8_t*) params->src; - i_img_ptr.clrPtr = i_img_ptr.imgPtr + (i_img_ptr.uWidth * i_img_ptr.uHeight); - i_img_ptr.uOffset = 0; - - //ouput - o_img_ptr.uWidth = params->out_width; - o_img_ptr.uStride = o_img_ptr.uWidth; - o_img_ptr.uHeight = params->out_height; - o_img_ptr.eFormat = IC_FORMAT_YCbCr420_lp; - o_img_ptr.imgPtr = dst_buffer; - o_img_ptr.clrPtr = o_img_ptr.imgPtr + (o_img_ptr.uWidth * o_img_ptr.uHeight); - o_img_ptr.uOffset = 0; - - VT_resizeFrame_Video_opt2_lp(&i_img_ptr, &o_img_ptr, NULL, 0); -} - -/* public static functions */ -const char* ExifElementsTable::degreesToExifOrientation(unsigned int degrees) { - for (unsigned int i = 0; i < ARRAY_SIZE(degress_to_exif_lut); i++) { - if (degrees == degress_to_exif_lut[i].integer) { - return degress_to_exif_lut[i].string; - } - } - return NULL; -} - -void ExifElementsTable::stringToRational(const char* str, unsigned int* num, unsigned int* den) { - int len; - char * tempVal = NULL; - - if (str != NULL) { - len = strlen(str); - tempVal = (char*) malloc( sizeof(char) * (len + 1)); - } - - if (tempVal != NULL) { - // convert the decimal string into a rational - size_t den_len; - char *ctx; - unsigned int numerator = 0; - unsigned int denominator = 0; - char* temp = NULL; - - memset(tempVal, '\0', len + 1); - strncpy(tempVal, str, len); - temp = strtok_r(tempVal, ".", &ctx); - - if (temp != NULL) - numerator = atoi(temp); - - if (!numerator) - numerator = 1; - - temp = strtok_r(NULL, ".", &ctx); - if (temp != NULL) { - den_len = strlen(temp); - if(HUGE_VAL == den_len ) { - den_len = 0; - } - - denominator = static_cast<unsigned int>(pow(10, den_len)); - numerator = numerator * denominator + atoi(temp); - } else { - denominator = 1; - } - - free(tempVal); - - *num = numerator; - *den = denominator; - } -} - -bool ExifElementsTable::isAsciiTag(const char* tag) { - // TODO(XXX): Add tags as necessary - return (strcmp(tag, TAG_GPS_PROCESSING_METHOD) == 0); -} - -void ExifElementsTable::insertExifToJpeg(unsigned char* jpeg, size_t jpeg_size) { - ReadMode_t read_mode = (ReadMode_t)(READ_METADATA | READ_IMAGE); - - ResetJpgfile(); - if (ReadJpegSectionsFromBuffer(jpeg, jpeg_size, read_mode)) { - jpeg_opened = true; -#ifdef ANDROID_API_JB_OR_LATER - create_EXIF(table, exif_tag_count, gps_tag_count, has_datetime_tag); -#else - create_EXIF(table, exif_tag_count, gps_tag_count); -#endif - } -} - -status_t ExifElementsTable::insertExifThumbnailImage(const char* thumb, int len) { - status_t ret = NO_ERROR; - - if ((len > 0) && jpeg_opened) { - ret = ReplaceThumbnailFromBuffer(thumb, len) ? NO_ERROR : UNKNOWN_ERROR; - CAMHAL_LOGDB("insertExifThumbnailImage. ReplaceThumbnail(). ret=%d", ret); - } - - return ret; -} - -void ExifElementsTable::saveJpeg(unsigned char* jpeg, size_t jpeg_size) { - if (jpeg_opened) { - WriteJpegToBuffer(jpeg, jpeg_size); - DiscardData(); - jpeg_opened = false; - } -} - -/* public functions */ -ExifElementsTable::~ExifElementsTable() { - int num_elements = gps_tag_count + exif_tag_count; - - for (int i = 0; i < num_elements; i++) { - if (table[i].Value) { - free(table[i].Value); - } - } - - if (jpeg_opened) { - DiscardData(); - } -} - -status_t ExifElementsTable::insertElement(const char* tag, const char* value) { - unsigned int value_length = 0; - status_t ret = NO_ERROR; - - if (!value || !tag) { - return -EINVAL; - } - - if (position >= MAX_EXIF_TAGS_SUPPORTED) { - CAMHAL_LOGEA("Max number of EXIF elements already inserted"); - return NO_MEMORY; - } - - if (isAsciiTag(tag)) { - value_length = sizeof(ExifAsciiPrefix) + strlen(value + sizeof(ExifAsciiPrefix)); - } else { - value_length = strlen(value); - } - - if (IsGpsTag(tag)) { - table[position].GpsTag = TRUE; - table[position].Tag = GpsTagNameToValue(tag); - gps_tag_count++; - } else { - table[position].GpsTag = FALSE; - table[position].Tag = TagNameToValue(tag); - exif_tag_count++; - - if (strcmp(tag, TAG_DATETIME) == 0) { -#ifdef ANDROID_API_JB_OR_LATER - has_datetime_tag = true; -#else - // jhead isn't taking datetime tag...this is a WA - ImageInfo.numDateTimeTags = 1; - memcpy(ImageInfo.DateTime, value, - MIN(ARRAY_SIZE(ImageInfo.DateTime), value_length + 1)); -#endif - } - } - - table[position].DataLength = 0; - table[position].Value = (char*) malloc(sizeof(char) * (value_length + 1)); - - if (table[position].Value) { - memcpy(table[position].Value, value, value_length + 1); - table[position].DataLength = value_length + 1; - } - - position++; - return ret; -} - -/* private member functions */ -size_t Encoder_libjpeg::encode(params* input) { - jpeg_compress_struct cinfo; - jpeg_error_mgr jerr; - jpeg_destination_mgr jdest; - uint8_t* src = NULL, *resize_src = NULL; - uint8_t* row_tmp = NULL; - uint8_t* row_src = NULL; - uint8_t* row_uv = NULL; // used only for NV12 - int out_width = 0, in_width = 0; - int out_height = 0, in_height = 0; - int bpp = 2; // for uyvy - int right_crop = 0, start_offset = 0; - - if (!input) { - return 0; - } - - out_width = input->out_width; - in_width = input->in_width; - out_height = input->out_height; - in_height = input->in_height; - right_crop = input->right_crop; - start_offset = input->start_offset; - src = input->src; - input->jpeg_size = 0; - - libjpeg_destination_mgr dest_mgr(input->dst, input->dst_size); - - // param check... - if ((in_width < 2) || (out_width < 2) || (in_height < 2) || (out_height < 2) || - (src == NULL) || (input->dst == NULL) || (input->quality < 1) || (input->src_size < 1) || - (input->dst_size < 1) || (input->format == NULL)) { - goto exit; - } - - if (strcmp(input->format, android::CameraParameters::PIXEL_FORMAT_YUV420SP) == 0) { - bpp = 1; - if ((in_width != out_width) || (in_height != out_height)) { - resize_src = (uint8_t*) malloc(input->dst_size); - resize_nv12(input, resize_src); - if (resize_src) src = resize_src; - } - } else if (strcmp(input->format, android::CameraParameters::PIXEL_FORMAT_YUV422I) && - strcmp(input->format, TICameraParameters::PIXEL_FORMAT_YUV422I_UYVY)) { - // we currently only support yuv422i and yuv420sp - CAMHAL_LOGEB("Encoder: format not supported: %s", input->format); - goto exit; - } else if ((in_width != out_width) || (in_height != out_height)) { - CAMHAL_LOGEB("Encoder: resizing is not supported for this format: %s", input->format); - goto exit; - } - - cinfo.err = jpeg_std_error(&jerr); - - jpeg_create_compress(&cinfo); - - CAMHAL_LOGDB("encoding... \n\t" - "width: %d \n\t" - "height:%d \n\t" - "dest %p \n\t" - "dest size:%d \n\t" - "mSrc %p \n\t" - "format: %s", - out_width, out_height, input->dst, - input->dst_size, src, input->format); - - cinfo.dest = &dest_mgr; - cinfo.image_width = out_width - right_crop; - cinfo.image_height = out_height; - cinfo.input_components = 3; - cinfo.in_color_space = JCS_YCbCr; - cinfo.input_gamma = 1; - - jpeg_set_defaults(&cinfo); - jpeg_set_quality(&cinfo, input->quality, TRUE); - cinfo.dct_method = JDCT_IFAST; - - jpeg_start_compress(&cinfo, TRUE); - - row_tmp = (uint8_t*)malloc((out_width - right_crop) * 3); - row_src = src + start_offset; - row_uv = src + out_width * out_height * bpp; - - while ((cinfo.next_scanline < cinfo.image_height) && !mCancelEncoding) { - JSAMPROW row[1]; /* pointer to JSAMPLE row[s] */ - - // convert input yuv format to yuv444 - if (strcmp(input->format, android::CameraParameters::PIXEL_FORMAT_YUV420SP) == 0) { - nv21_to_yuv(row_tmp, row_src, row_uv, out_width - right_crop); - } else if (strcmp(input->format, TICameraParameters::PIXEL_FORMAT_YUV422I_UYVY) == 0) { - uyvy_to_yuv(row_tmp, (uint32_t*)row_src, out_width - right_crop); - } else if (strcmp(input->format, android::CameraParameters::PIXEL_FORMAT_YUV422I) == 0) { - yuyv_to_yuv(row_tmp, (uint32_t*)row_src, out_width - right_crop); - } - - row[0] = row_tmp; - jpeg_write_scanlines(&cinfo, row, 1); - row_src = row_src + out_width*bpp; - - // move uv row if input format needs it - if (strcmp(input->format, android::CameraParameters::PIXEL_FORMAT_YUV420SP) == 0) { - if (!(cinfo.next_scanline % 2)) - row_uv = row_uv + out_width * bpp; - } - } - - // no need to finish encoding routine if we are prematurely stopping - // we will end up crashing in dest_mgr since data is incomplete - if (!mCancelEncoding) - jpeg_finish_compress(&cinfo); - jpeg_destroy_compress(&cinfo); - - if (resize_src) free(resize_src); - if (row_tmp) free(row_tmp); - - exit: - input->jpeg_size = dest_mgr.jpegsize; - return dest_mgr.jpegsize; -} - -} // namespace Camera -} // namespace Ti |