mirror of
https://github.com/espressif/esp32-camera.git
synced 2025-07-02 06:47:11 +08:00
Merge branch 'master' into patch-1
This commit is contained in:
3
.gitignore
vendored
3
.gitignore
vendored
@ -3,4 +3,5 @@
|
||||
**/build
|
||||
**/sdkconfig
|
||||
**/sdkconfig.old
|
||||
**/dependencies.lock
|
||||
**/dependencies.lock
|
||||
**/managed_components/**
|
@ -7,7 +7,6 @@ set(srcs
|
||||
conversions/to_jpg.cpp
|
||||
conversions/to_bmp.c
|
||||
conversions/jpge.cpp
|
||||
conversions/esp_jpg_decode.c
|
||||
)
|
||||
|
||||
set(priv_include_dirs
|
||||
@ -61,7 +60,6 @@ if(IDF_TARGET STREQUAL "esp32" OR IDF_TARGET STREQUAL "esp32s2" OR IDF_TARGET ST
|
||||
list(APPEND srcs
|
||||
target/xclk.c
|
||||
target/esp32s2/ll_cam.c
|
||||
target/tjpgd.c
|
||||
)
|
||||
|
||||
list(APPEND priv_include_dirs
|
||||
@ -83,9 +81,9 @@ if(IDF_TARGET STREQUAL "esp32" OR IDF_TARGET STREQUAL "esp32s2" OR IDF_TARGET ST
|
||||
endif()
|
||||
|
||||
# include the SCCB I2C driver
|
||||
# this uses either the legacy I2C API or the newwer version from IDF v5.4
|
||||
# this uses either the legacy I2C API or the newer version from IDF v5.4
|
||||
# as this features a method to obtain the I2C driver from a port number
|
||||
if (idf_version VERSION_GREATER_EQUAL "5.4")
|
||||
if (idf_version VERSION_GREATER_EQUAL "5.4" AND NOT CONFIG_SCCB_HARDWARE_I2C_DRIVER_LEGACY)
|
||||
list(APPEND srcs driver/sccb-ng.c)
|
||||
else()
|
||||
list(APPEND srcs driver/sccb.c)
|
||||
@ -93,17 +91,6 @@ if(IDF_TARGET STREQUAL "esp32" OR IDF_TARGET STREQUAL "esp32s2" OR IDF_TARGET ST
|
||||
|
||||
endif()
|
||||
|
||||
# CONFIG_ESP_ROM_HAS_JPEG_DECODE is available from IDF v4.4 but
|
||||
# previous IDF supported chips already support JPEG decoder, hence okay to use this
|
||||
if(idf_version VERSION_GREATER_EQUAL "4.4" AND NOT CONFIG_ESP_ROM_HAS_JPEG_DECODE)
|
||||
list(APPEND srcs
|
||||
target/tjpgd.c
|
||||
)
|
||||
list(APPEND priv_include_dirs
|
||||
target/jpeg_include/
|
||||
)
|
||||
endif()
|
||||
|
||||
idf_component_register(
|
||||
SRCS ${srcs}
|
||||
INCLUDE_DIRS ${include_dirs}
|
||||
|
14
Kconfig
14
Kconfig
@ -124,6 +124,20 @@ menu "Camera configuration"
|
||||
Enable this option if you want to use the MEGA CCM.
|
||||
Disable this option to save memory.
|
||||
|
||||
choice SCCB_HARDWARE_I2C_DRIVER_SELECTION
|
||||
prompt "I2C driver selection for SCCB"
|
||||
default SCCB_HARDWARE_I2C_DRIVER_NEW
|
||||
help
|
||||
Select the I2C driver to use for SCCB communication.
|
||||
NOTE: new driver is only supported for ESP-IDF >= 5.4.
|
||||
|
||||
config SCCB_HARDWARE_I2C_DRIVER_LEGACY
|
||||
bool "Legacy I2C driver"
|
||||
config SCCB_HARDWARE_I2C_DRIVER_NEW
|
||||
bool "New I2C driver"
|
||||
|
||||
endchoice
|
||||
|
||||
choice SCCB_HARDWARE_I2C_PORT
|
||||
bool "I2C peripheral to use for SCCB"
|
||||
default SCCB_HARDWARE_I2C_PORT1
|
||||
|
@ -1,140 +0,0 @@
|
||||
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
|
||||
//
|
||||
// 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.
|
||||
#include "esp_jpg_decode.h"
|
||||
|
||||
#include "esp_system.h"
|
||||
#if ESP_IDF_VERSION_MAJOR >= 4 // IDF 4+
|
||||
#if CONFIG_IDF_TARGET_ESP32 // ESP32/PICO-D4
|
||||
#include "esp32/rom/tjpgd.h"
|
||||
#elif CONFIG_IDF_TARGET_ESP32S3
|
||||
#include "esp32s3/rom/tjpgd.h"
|
||||
#elif CONFIG_IDF_TARGET_ESP32C3
|
||||
#include "esp32c3/rom/tjpgd.h"
|
||||
#elif CONFIG_ESP_ROM_HAS_JPEG_DECODE // available since IDF 4.4
|
||||
#include "rom/tjpgd.h" // latest IDFs have `rom/` includes available
|
||||
#else
|
||||
#include "tjpgd.h" // using software decoder
|
||||
#endif
|
||||
#else // ESP32 Before IDF 4.0
|
||||
#include "rom/tjpgd.h"
|
||||
#endif
|
||||
|
||||
#if defined(ARDUINO_ARCH_ESP32) && defined(CONFIG_ARDUHAL_ESP_LOG)
|
||||
#include "esp32-hal-log.h"
|
||||
#define TAG ""
|
||||
#else
|
||||
#include "esp_log.h"
|
||||
static const char* TAG = "esp_jpg_decode";
|
||||
#endif
|
||||
|
||||
typedef struct {
|
||||
jpg_scale_t scale;
|
||||
jpg_reader_cb reader;
|
||||
jpg_writer_cb writer;
|
||||
void * arg;
|
||||
size_t len;
|
||||
size_t index;
|
||||
} esp_jpg_decoder_t;
|
||||
|
||||
static const char * jd_errors[] = {
|
||||
"Succeeded",
|
||||
"Interrupted by output function",
|
||||
"Device error or wrong termination of input stream",
|
||||
"Insufficient memory pool for the image",
|
||||
"Insufficient stream input buffer",
|
||||
"Parameter error",
|
||||
"Data format error",
|
||||
"Right format but not supported",
|
||||
"Not supported JPEG standard"
|
||||
};
|
||||
|
||||
static unsigned int _jpg_write(JDEC *decoder, void *bitmap, JRECT *rect)
|
||||
{
|
||||
uint16_t x = rect->left;
|
||||
uint16_t y = rect->top;
|
||||
uint16_t w = rect->right + 1 - x;
|
||||
uint16_t h = rect->bottom + 1 - y;
|
||||
uint8_t *data = (uint8_t *)bitmap;
|
||||
|
||||
esp_jpg_decoder_t * jpeg = (esp_jpg_decoder_t *)decoder->device;
|
||||
|
||||
if (jpeg->writer) {
|
||||
return jpeg->writer(jpeg->arg, x, y, w, h, data);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static unsigned int _jpg_read(JDEC *decoder, uint8_t *buf, unsigned int len)
|
||||
{
|
||||
esp_jpg_decoder_t * jpeg = (esp_jpg_decoder_t *)decoder->device;
|
||||
if (jpeg->len && len > (jpeg->len - jpeg->index)) {
|
||||
len = jpeg->len - jpeg->index;
|
||||
}
|
||||
if (len) {
|
||||
len = jpeg->reader(jpeg->arg, jpeg->index, buf, len);
|
||||
if (!len) {
|
||||
ESP_LOGE(TAG, "Read Fail at %u/%u", jpeg->index, jpeg->len);
|
||||
}
|
||||
jpeg->index += len;
|
||||
}
|
||||
return len;
|
||||
}
|
||||
|
||||
esp_err_t esp_jpg_decode(size_t len, jpg_scale_t scale, jpg_reader_cb reader, jpg_writer_cb writer, void * arg)
|
||||
{
|
||||
static uint8_t work[3100];
|
||||
JDEC decoder;
|
||||
esp_jpg_decoder_t jpeg;
|
||||
|
||||
jpeg.len = len;
|
||||
jpeg.reader = reader;
|
||||
jpeg.writer = writer;
|
||||
jpeg.arg = arg;
|
||||
jpeg.scale = scale;
|
||||
jpeg.index = 0;
|
||||
|
||||
JRESULT jres = jd_prepare(&decoder, _jpg_read, work, 3100, &jpeg);
|
||||
if(jres != JDR_OK){
|
||||
ESP_LOGE(TAG, "JPG Header Parse Failed! %s", jd_errors[jres]);
|
||||
return ESP_FAIL;
|
||||
}
|
||||
|
||||
uint16_t output_width = decoder.width / (1 << (uint8_t)(jpeg.scale));
|
||||
uint16_t output_height = decoder.height / (1 << (uint8_t)(jpeg.scale));
|
||||
|
||||
//output start
|
||||
if (!writer(arg, 0, 0, output_width, output_height, NULL)) {
|
||||
ESP_LOGE(TAG, "JPG Writer Start Failed!");
|
||||
return ESP_FAIL;
|
||||
}
|
||||
//output write
|
||||
jres = jd_decomp(&decoder, _jpg_write, (uint8_t)jpeg.scale);
|
||||
//output end
|
||||
if (!writer(arg, output_width, output_height, output_width, output_height, NULL)) {
|
||||
ESP_LOGE(TAG, "JPG Writer End Failed!");
|
||||
return ESP_FAIL;
|
||||
}
|
||||
|
||||
if (jres != JDR_OK) {
|
||||
ESP_LOGE(TAG, "JPG Decompression Failed! %s", jd_errors[jres]);
|
||||
return ESP_FAIL;
|
||||
}
|
||||
//check if all data has been consumed.
|
||||
if (len && jpeg.index < len) {
|
||||
_jpg_read(&decoder, NULL, len - jpeg.index);
|
||||
}
|
||||
|
||||
return ESP_OK;
|
||||
}
|
||||
|
@ -1,43 +0,0 @@
|
||||
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
|
||||
//
|
||||
// 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.
|
||||
#ifndef _ESP_JPG_DECODE_H_
|
||||
#define _ESP_JPG_DECODE_H_
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
#include <stddef.h>
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include "esp_err.h"
|
||||
|
||||
typedef enum {
|
||||
JPG_SCALE_NONE,
|
||||
JPG_SCALE_2X,
|
||||
JPG_SCALE_4X,
|
||||
JPG_SCALE_8X,
|
||||
JPG_SCALE_MAX = JPG_SCALE_8X
|
||||
} jpg_scale_t;
|
||||
|
||||
typedef size_t (* jpg_reader_cb)(void * arg, size_t index, uint8_t *buf, size_t len);
|
||||
typedef bool (* jpg_writer_cb)(void * arg, uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint8_t *data);
|
||||
|
||||
esp_err_t esp_jpg_decode(size_t len, jpg_scale_t scale, jpg_reader_cb reader, jpg_writer_cb writer, void * arg);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* _ESP_JPG_DECODE_H_ */
|
@ -1,4 +1,4 @@
|
||||
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
|
||||
// Copyright 2015-2025 Espressif Systems (Shanghai) PTE LTD
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
@ -22,7 +22,7 @@ extern "C" {
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include "esp_camera.h"
|
||||
#include "esp_jpg_decode.h"
|
||||
#include "jpeg_decoder.h"
|
||||
|
||||
typedef size_t (* jpg_out_cb)(void * arg, size_t index, const void* data, size_t len);
|
||||
|
||||
@ -121,7 +121,13 @@ bool frame2bmp(camera_fb_t * fb, uint8_t ** out, size_t * out_len);
|
||||
*/
|
||||
bool fmt2rgb888(const uint8_t *src_buf, size_t src_len, pixformat_t format, uint8_t * rgb_buf);
|
||||
|
||||
bool jpg2rgb565(const uint8_t *src, size_t src_len, uint8_t * out, jpg_scale_t scale);
|
||||
// Macros for backwards compatibility
|
||||
#define JPG_SCALE_NONE JPEG_IMAGE_SCALE_0
|
||||
#define JPG_SCALE_2X JPEG_IMAGE_SCALE_1_2
|
||||
#define JPG_SCALE_4X JPEG_IMAGE_SCALE_1_4
|
||||
#define JPG_SCALE_8X JPEG_IMAGE_SCALE_1_8
|
||||
#define JPG_SCALE_MAX JPEG_IMAGE_SCALE_1_8
|
||||
bool jpg2rgb565(const uint8_t *src, size_t src_len, uint8_t * out, esp_jpeg_image_scale_t scale);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
|
@ -1,4 +1,4 @@
|
||||
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
|
||||
// Copyright 2015-2025 Espressif Systems (Shanghai) PTE LTD
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
@ -18,7 +18,7 @@
|
||||
#include "esp_heap_caps.h"
|
||||
#include "yuv.h"
|
||||
#include "sdkconfig.h"
|
||||
#include "esp_jpg_decode.h"
|
||||
#include "jpeg_decoder.h"
|
||||
|
||||
#include "esp_system.h"
|
||||
|
||||
@ -31,6 +31,7 @@ static const char* TAG = "to_bmp";
|
||||
#endif
|
||||
|
||||
static const int BMP_HEADER_LEN = 54;
|
||||
static uint8_t work[3100]; // 3.1kB for JPEG decoder, static for legacy reasons
|
||||
|
||||
typedef struct {
|
||||
uint32_t filesize;
|
||||
@ -49,14 +50,6 @@ typedef struct {
|
||||
uint32_t mostimpcolor;
|
||||
} bmp_header_t;
|
||||
|
||||
typedef struct {
|
||||
uint16_t width;
|
||||
uint16_t height;
|
||||
uint16_t data_offset;
|
||||
const uint8_t *input;
|
||||
uint8_t *output;
|
||||
} rgb_jpg_decoder;
|
||||
|
||||
static void *_malloc(size_t size)
|
||||
{
|
||||
// check if SPIRAM is enabled and allocate on SPIRAM if allocatable
|
||||
@ -67,137 +60,44 @@ static void *_malloc(size_t size)
|
||||
return malloc(size);
|
||||
}
|
||||
|
||||
//output buffer and image width
|
||||
static bool _rgb_write(void * arg, uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint8_t *data)
|
||||
static bool jpg2rgb888(const uint8_t *src, size_t src_len, uint8_t * out, esp_jpeg_image_scale_t scale)
|
||||
{
|
||||
rgb_jpg_decoder * jpeg = (rgb_jpg_decoder *)arg;
|
||||
if(!data){
|
||||
if(x == 0 && y == 0){
|
||||
//write start
|
||||
jpeg->width = w;
|
||||
jpeg->height = h;
|
||||
//if output is null, this is BMP
|
||||
if(!jpeg->output){
|
||||
size_t out_size = (w*h*3)+jpeg->data_offset;
|
||||
jpeg->output = (uint8_t *)_malloc(out_size);
|
||||
if(!jpeg->output){
|
||||
ESP_LOGE(TAG, "_malloc failed! %zu", out_size);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
//write end
|
||||
}
|
||||
return true;
|
||||
}
|
||||
esp_jpeg_image_cfg_t jpeg_cfg = {
|
||||
.indata = (uint8_t *)src,
|
||||
.indata_size = src_len,
|
||||
.outbuf = out,
|
||||
.outbuf_size = UINT32_MAX, // @todo: this is very bold assumption, keeping this like this for now, not to break existing code
|
||||
.out_format = JPEG_IMAGE_FORMAT_RGB888,
|
||||
.out_scale = scale,
|
||||
.flags.swap_color_bytes = 0,
|
||||
.advanced.working_buffer = work,
|
||||
.advanced.working_buffer_size = sizeof(work),
|
||||
};
|
||||
esp_jpeg_image_output_t output_img = {};
|
||||
|
||||
size_t jw = jpeg->width*3;
|
||||
size_t t = y * jw;
|
||||
size_t b = t + (h * jw);
|
||||
size_t l = x * 3;
|
||||
uint8_t *out = jpeg->output+jpeg->data_offset;
|
||||
uint8_t *o = out;
|
||||
size_t iy, ix;
|
||||
|
||||
w = w * 3;
|
||||
|
||||
for(iy=t; iy<b; iy+=jw) {
|
||||
o = out+iy+l;
|
||||
for(ix=0; ix<w; ix+= 3) {
|
||||
o[ix] = data[ix+2];
|
||||
o[ix+1] = data[ix+1];
|
||||
o[ix+2] = data[ix];
|
||||
}
|
||||
data+=w;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool _rgb565_write(void * arg, uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint8_t *data)
|
||||
{
|
||||
rgb_jpg_decoder * jpeg = (rgb_jpg_decoder *)arg;
|
||||
if(!data){
|
||||
if(x == 0 && y == 0){
|
||||
//write start
|
||||
jpeg->width = w;
|
||||
jpeg->height = h;
|
||||
//if output is null, this is BMP
|
||||
if(!jpeg->output){
|
||||
size_t out_size = (w*h*3)+jpeg->data_offset;
|
||||
jpeg->output = (uint8_t *)_malloc(out_size);
|
||||
if(!jpeg->output){
|
||||
ESP_LOGE(TAG, "_malloc failed! %zu", out_size);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
//write end
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
size_t jw = jpeg->width*3;
|
||||
size_t jw2 = jpeg->width*2;
|
||||
size_t t = y * jw;
|
||||
size_t t2 = y * jw2;
|
||||
size_t b = t + (h * jw);
|
||||
size_t l = x * 2;
|
||||
uint8_t *out = jpeg->output+jpeg->data_offset;
|
||||
uint8_t *o = out;
|
||||
size_t iy, iy2, ix, ix2;
|
||||
|
||||
w = w * 3;
|
||||
|
||||
for(iy=t, iy2=t2; iy<b; iy+=jw, iy2+=jw2) {
|
||||
o = out+iy2+l;
|
||||
for(ix2=ix=0; ix<w; ix+= 3, ix2 +=2) {
|
||||
uint16_t r = data[ix];
|
||||
uint16_t g = data[ix+1];
|
||||
uint16_t b = data[ix+2];
|
||||
uint16_t c = ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
|
||||
o[ix2+1] = c>>8;
|
||||
o[ix2] = c&0xff;
|
||||
}
|
||||
data+=w;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
//input buffer
|
||||
static unsigned int _jpg_read(void * arg, size_t index, uint8_t *buf, size_t len)
|
||||
{
|
||||
rgb_jpg_decoder * jpeg = (rgb_jpg_decoder *)arg;
|
||||
if(buf) {
|
||||
memcpy(buf, jpeg->input + index, len);
|
||||
}
|
||||
return len;
|
||||
}
|
||||
|
||||
static bool jpg2rgb888(const uint8_t *src, size_t src_len, uint8_t * out, jpg_scale_t scale)
|
||||
{
|
||||
rgb_jpg_decoder jpeg;
|
||||
jpeg.width = 0;
|
||||
jpeg.height = 0;
|
||||
jpeg.input = src;
|
||||
jpeg.output = out;
|
||||
jpeg.data_offset = 0;
|
||||
|
||||
if(esp_jpg_decode(src_len, scale, _jpg_read, _rgb_write, (void*)&jpeg) != ESP_OK){
|
||||
if(esp_jpeg_decode(&jpeg_cfg, &output_img) != ESP_OK){
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
bool jpg2rgb565(const uint8_t *src, size_t src_len, uint8_t * out, jpg_scale_t scale)
|
||||
bool jpg2rgb565(const uint8_t *src, size_t src_len, uint8_t * out, esp_jpeg_image_scale_t scale)
|
||||
{
|
||||
rgb_jpg_decoder jpeg;
|
||||
jpeg.width = 0;
|
||||
jpeg.height = 0;
|
||||
jpeg.input = src;
|
||||
jpeg.output = out;
|
||||
jpeg.data_offset = 0;
|
||||
esp_jpeg_image_cfg_t jpeg_cfg = {
|
||||
.indata = (uint8_t *)src,
|
||||
.indata_size = src_len,
|
||||
.outbuf = out,
|
||||
.outbuf_size = UINT32_MAX, // @todo: this is very bold assumption, keeping this like this for now, not to break existing code
|
||||
.out_format = JPEG_IMAGE_FORMAT_RGB565,
|
||||
.out_scale = scale,
|
||||
.flags.swap_color_bytes = 0,
|
||||
.advanced.working_buffer = work,
|
||||
.advanced.working_buffer_size = sizeof(work),
|
||||
};
|
||||
|
||||
if(esp_jpg_decode(src_len, scale, _jpg_read, _rgb565_write, (void*)&jpeg) != ESP_OK){
|
||||
esp_jpeg_image_output_t output_img = {};
|
||||
|
||||
if(esp_jpeg_decode(&jpeg_cfg, &output_img) != ESP_OK){
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
@ -205,40 +105,59 @@ bool jpg2rgb565(const uint8_t *src, size_t src_len, uint8_t * out, jpg_scale_t s
|
||||
|
||||
bool jpg2bmp(const uint8_t *src, size_t src_len, uint8_t ** out, size_t * out_len)
|
||||
{
|
||||
|
||||
rgb_jpg_decoder jpeg;
|
||||
jpeg.width = 0;
|
||||
jpeg.height = 0;
|
||||
jpeg.input = src;
|
||||
jpeg.output = NULL;
|
||||
jpeg.data_offset = BMP_HEADER_LEN;
|
||||
|
||||
if(esp_jpg_decode(src_len, JPG_SCALE_NONE, _jpg_read, _rgb_write, (void*)&jpeg) != ESP_OK){
|
||||
esp_jpeg_image_cfg_t jpeg_cfg = {
|
||||
.indata = (uint8_t *)src,
|
||||
.indata_size = src_len,
|
||||
.out_format = JPEG_IMAGE_FORMAT_RGB888,
|
||||
.out_scale = JPEG_IMAGE_SCALE_0,
|
||||
.flags.swap_color_bytes = 0,
|
||||
.advanced.working_buffer = work,
|
||||
.advanced.working_buffer_size = sizeof(work),
|
||||
};
|
||||
|
||||
esp_jpeg_image_output_t output_img = {};
|
||||
if (esp_jpeg_get_image_info(&jpeg_cfg, &output_img) != ESP_OK) {
|
||||
ESP_LOGE(TAG, "Failed to get image info");
|
||||
return false;
|
||||
}
|
||||
|
||||
// @todo here we allocate memory and we assume that the user will free it
|
||||
// this is not the best way to do it, but we need to keep the API
|
||||
// compatible with the previous version
|
||||
const size_t output_size = output_img.output_len + BMP_HEADER_LEN;
|
||||
uint8_t *output = _malloc(output_size);
|
||||
if (!output) {
|
||||
ESP_LOGE(TAG, "Failed to allocate output buffer");
|
||||
return false;
|
||||
}
|
||||
|
||||
size_t output_size = jpeg.width*jpeg.height*3;
|
||||
// Start writing decoded data after the BMP header
|
||||
jpeg_cfg.outbuf = output + BMP_HEADER_LEN;
|
||||
jpeg_cfg.outbuf_size = output_img.output_len;
|
||||
if(esp_jpeg_decode(&jpeg_cfg, &output_img) != ESP_OK){
|
||||
return false;
|
||||
}
|
||||
|
||||
jpeg.output[0] = 'B';
|
||||
jpeg.output[1] = 'M';
|
||||
bmp_header_t * bitmap = (bmp_header_t*)&jpeg.output[2];
|
||||
output[0] = 'B';
|
||||
output[1] = 'M';
|
||||
bmp_header_t * bitmap = (bmp_header_t*)&output[2];
|
||||
bitmap->reserved = 0;
|
||||
bitmap->filesize = output_size+BMP_HEADER_LEN;
|
||||
bitmap->filesize = output_size;
|
||||
bitmap->fileoffset_to_pixelarray = BMP_HEADER_LEN;
|
||||
bitmap->dibheadersize = 40;
|
||||
bitmap->width = jpeg.width;
|
||||
bitmap->height = -jpeg.height;//set negative for top to bottom
|
||||
bitmap->width = output_img.width;
|
||||
bitmap->height = -output_img.height; //set negative for top to bottom
|
||||
bitmap->planes = 1;
|
||||
bitmap->bitsperpixel = 24;
|
||||
bitmap->compression = 0;
|
||||
bitmap->imagesize = output_size;
|
||||
bitmap->imagesize = output_img.output_len;
|
||||
bitmap->ypixelpermeter = 0x0B13 ; //2835 , 72 DPI
|
||||
bitmap->xpixelpermeter = 0x0B13 ; //2835 , 72 DPI
|
||||
bitmap->numcolorspallette = 0;
|
||||
bitmap->mostimpcolor = 0;
|
||||
|
||||
*out = jpeg.output;
|
||||
*out_len = output_size+BMP_HEADER_LEN;
|
||||
*out = output;
|
||||
*out_len = output_size;
|
||||
|
||||
return true;
|
||||
}
|
||||
@ -247,7 +166,7 @@ bool fmt2rgb888(const uint8_t *src_buf, size_t src_len, pixformat_t format, uint
|
||||
{
|
||||
int pix_count = 0;
|
||||
if(format == PIXFORMAT_JPEG) {
|
||||
return jpg2rgb888(src_buf, src_len, rgb_buf, JPG_SCALE_NONE);
|
||||
return jpg2rgb888(src_buf, src_len, rgb_buf, JPEG_IMAGE_SCALE_0);
|
||||
} else if(format == PIXFORMAT_RGB888) {
|
||||
memcpy(rgb_buf, src_buf, src_len);
|
||||
} else if(format == PIXFORMAT_RGB565) {
|
||||
|
@ -3,3 +3,7 @@ url: https://github.com/espressif/esp32-camera
|
||||
issues: https://github.com/espressif/esp32-camera/issues
|
||||
documentation: https://github.com/espressif/esp32-camera/tree/main/README.md
|
||||
repository: https://github.com/espressif/esp32-camera.git
|
||||
dependencies:
|
||||
esp_jpeg:
|
||||
version: "^1.3.0"
|
||||
public: true
|
||||
|
@ -4,7 +4,7 @@
|
||||
*
|
||||
*/
|
||||
#ifndef __SC031GS_H__
|
||||
#define __SC030GS_H__
|
||||
#define __SC031GS_H__
|
||||
|
||||
#include "sensor.h"
|
||||
|
||||
|
@ -1,99 +0,0 @@
|
||||
/*----------------------------------------------------------------------------/
|
||||
/ TJpgDec - Tiny JPEG Decompressor include file (C)ChaN, 2012
|
||||
/----------------------------------------------------------------------------*/
|
||||
#ifndef _TJPGDEC
|
||||
#define _TJPGDEC
|
||||
/*---------------------------------------------------------------------------*/
|
||||
/* System Configurations */
|
||||
|
||||
#define JD_SZBUF 512 /* Size of stream input buffer */
|
||||
#define JD_FORMAT 0 /* Output pixel format 0:RGB888 (3 BYTE/pix), 1:RGB565 (1 WORD/pix) */
|
||||
#define JD_USE_SCALE 1 /* Use descaling feature for output */
|
||||
#define JD_TBLCLIP 1 /* Use table for saturation (might be a bit faster but increases 1K bytes of code size) */
|
||||
|
||||
/*---------------------------------------------------------------------------*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* These types must be 16-bit, 32-bit or larger integer */
|
||||
typedef int INT;
|
||||
typedef unsigned int UINT;
|
||||
|
||||
/* These types must be 8-bit integer */
|
||||
typedef char CHAR;
|
||||
typedef unsigned char UCHAR;
|
||||
typedef unsigned char BYTE;
|
||||
|
||||
/* These types must be 16-bit integer */
|
||||
typedef short SHORT;
|
||||
typedef unsigned short USHORT;
|
||||
typedef unsigned short WORD;
|
||||
typedef unsigned short WCHAR;
|
||||
|
||||
/* These types must be 32-bit integer */
|
||||
typedef long LONG;
|
||||
typedef unsigned long ULONG;
|
||||
typedef unsigned long DWORD;
|
||||
|
||||
|
||||
/* Error code */
|
||||
typedef enum {
|
||||
JDR_OK = 0, /* 0: Succeeded */
|
||||
JDR_INTR, /* 1: Interrupted by output function */
|
||||
JDR_INP, /* 2: Device error or wrong termination of input stream */
|
||||
JDR_MEM1, /* 3: Insufficient memory pool for the image */
|
||||
JDR_MEM2, /* 4: Insufficient stream input buffer */
|
||||
JDR_PAR, /* 5: Parameter error */
|
||||
JDR_FMT1, /* 6: Data format error (may be damaged data) */
|
||||
JDR_FMT2, /* 7: Right format but not supported */
|
||||
JDR_FMT3 /* 8: Not supported JPEG standard */
|
||||
} JRESULT;
|
||||
|
||||
|
||||
|
||||
/* Rectangular structure */
|
||||
typedef struct {
|
||||
WORD left, right, top, bottom;
|
||||
} JRECT;
|
||||
|
||||
|
||||
|
||||
/* Decompressor object structure */
|
||||
typedef struct JDEC JDEC;
|
||||
struct JDEC {
|
||||
UINT dctr; /* Number of bytes available in the input buffer */
|
||||
BYTE* dptr; /* Current data read ptr */
|
||||
BYTE* inbuf; /* Bit stream input buffer */
|
||||
BYTE dmsk; /* Current bit in the current read byte */
|
||||
BYTE scale; /* Output scaling ratio */
|
||||
BYTE msx, msy; /* MCU size in unit of block (width, height) */
|
||||
BYTE qtid[3]; /* Quantization table ID of each component */
|
||||
SHORT dcv[3]; /* Previous DC element of each component */
|
||||
WORD nrst; /* Restart inverval */
|
||||
UINT width, height; /* Size of the input image (pixel) */
|
||||
BYTE* huffbits[2][2]; /* Huffman bit distribution tables [id][dcac] */
|
||||
WORD* huffcode[2][2]; /* Huffman code word tables [id][dcac] */
|
||||
BYTE* huffdata[2][2]; /* Huffman decoded data tables [id][dcac] */
|
||||
LONG* qttbl[4]; /* Dequaitizer tables [id] */
|
||||
void* workbuf; /* Working buffer for IDCT and RGB output */
|
||||
BYTE* mcubuf; /* Working buffer for the MCU */
|
||||
void* pool; /* Pointer to available memory pool */
|
||||
UINT sz_pool; /* Size of momory pool (bytes available) */
|
||||
UINT (*infunc)(JDEC*, BYTE*, UINT);/* Pointer to jpeg stream input function */
|
||||
void* device; /* Pointer to I/O device identifiler for the session */
|
||||
};
|
||||
|
||||
|
||||
|
||||
/* TJpgDec API functions */
|
||||
JRESULT jd_prepare (JDEC*, UINT(*)(JDEC*,BYTE*,UINT), void*, UINT, void*);
|
||||
JRESULT jd_decomp (JDEC*, UINT(*)(JDEC*,void*,JRECT*), BYTE);
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* _TJPGDEC */
|
970
target/tjpgd.c
970
target/tjpgd.c
@ -1,970 +0,0 @@
|
||||
/*----------------------------------------------------------------------------/
|
||||
/ TJpgDec - Tiny JPEG Decompressor R0.01b (C)ChaN, 2012
|
||||
/-----------------------------------------------------------------------------/
|
||||
/ The TJpgDec is a generic JPEG decompressor module for tiny embedded systems.
|
||||
/ This is a free software that opened for education, research and commercial
|
||||
/ developments under license policy of following terms.
|
||||
/
|
||||
/ Copyright (C) 2012, ChaN, all right reserved.
|
||||
/
|
||||
/ * The TJpgDec module is a free software and there is NO WARRANTY.
|
||||
/ * No restriction on use. You can use, modify and redistribute it for
|
||||
/ personal, non-profit or commercial products UNDER YOUR RESPONSIBILITY.
|
||||
/ * Redistributions of source code must retain the above copyright notice.
|
||||
/
|
||||
/-----------------------------------------------------------------------------/
|
||||
/ Oct 04,'11 R0.01 First release.
|
||||
/ Feb 19,'12 R0.01a Fixed decompression fails when scan starts with an escape seq.
|
||||
/ Sep 03,'12 R0.01b Added JD_TBLCLIP option.
|
||||
/----------------------------------------------------------------------------*/
|
||||
|
||||
#include "tjpgd.h"
|
||||
|
||||
#define SUPPORT_JPEG 1
|
||||
|
||||
#ifdef SUPPORT_JPEG
|
||||
/*-----------------------------------------------*/
|
||||
/* Zigzag-order to raster-order conversion table */
|
||||
/*-----------------------------------------------*/
|
||||
|
||||
#define ZIG(n) Zig[n]
|
||||
|
||||
static
|
||||
const BYTE Zig[64] = { /* Zigzag-order to raster-order conversion table */
|
||||
0, 1, 8, 16, 9, 2, 3, 10, 17, 24, 32, 25, 18, 11, 4, 5,
|
||||
12, 19, 26, 33, 40, 48, 41, 34, 27, 20, 13, 6, 7, 14, 21, 28,
|
||||
35, 42, 49, 56, 57, 50, 43, 36, 29, 22, 15, 23, 30, 37, 44, 51,
|
||||
58, 59, 52, 45, 38, 31, 39, 46, 53, 60, 61, 54, 47, 55, 62, 63
|
||||
};
|
||||
|
||||
|
||||
|
||||
/*-------------------------------------------------*/
|
||||
/* Input scale factor of Arai algorithm */
|
||||
/* (scaled up 16 bits for fixed point operations) */
|
||||
/*-------------------------------------------------*/
|
||||
|
||||
#define IPSF(n) Ipsf[n]
|
||||
|
||||
static
|
||||
const WORD Ipsf[64] = { /* See also aa_idct.png */
|
||||
(WORD)(1.00000*8192), (WORD)(1.38704*8192), (WORD)(1.30656*8192), (WORD)(1.17588*8192), (WORD)(1.00000*8192), (WORD)(0.78570*8192), (WORD)(0.54120*8192), (WORD)(0.27590*8192),
|
||||
(WORD)(1.38704*8192), (WORD)(1.92388*8192), (WORD)(1.81226*8192), (WORD)(1.63099*8192), (WORD)(1.38704*8192), (WORD)(1.08979*8192), (WORD)(0.75066*8192), (WORD)(0.38268*8192),
|
||||
(WORD)(1.30656*8192), (WORD)(1.81226*8192), (WORD)(1.70711*8192), (WORD)(1.53636*8192), (WORD)(1.30656*8192), (WORD)(1.02656*8192), (WORD)(0.70711*8192), (WORD)(0.36048*8192),
|
||||
(WORD)(1.17588*8192), (WORD)(1.63099*8192), (WORD)(1.53636*8192), (WORD)(1.38268*8192), (WORD)(1.17588*8192), (WORD)(0.92388*8192), (WORD)(0.63638*8192), (WORD)(0.32442*8192),
|
||||
(WORD)(1.00000*8192), (WORD)(1.38704*8192), (WORD)(1.30656*8192), (WORD)(1.17588*8192), (WORD)(1.00000*8192), (WORD)(0.78570*8192), (WORD)(0.54120*8192), (WORD)(0.27590*8192),
|
||||
(WORD)(0.78570*8192), (WORD)(1.08979*8192), (WORD)(1.02656*8192), (WORD)(0.92388*8192), (WORD)(0.78570*8192), (WORD)(0.61732*8192), (WORD)(0.42522*8192), (WORD)(0.21677*8192),
|
||||
(WORD)(0.54120*8192), (WORD)(0.75066*8192), (WORD)(0.70711*8192), (WORD)(0.63638*8192), (WORD)(0.54120*8192), (WORD)(0.42522*8192), (WORD)(0.29290*8192), (WORD)(0.14932*8192),
|
||||
(WORD)(0.27590*8192), (WORD)(0.38268*8192), (WORD)(0.36048*8192), (WORD)(0.32442*8192), (WORD)(0.27590*8192), (WORD)(0.21678*8192), (WORD)(0.14932*8192), (WORD)(0.07612*8192)
|
||||
};
|
||||
|
||||
|
||||
|
||||
/*---------------------------------------------*/
|
||||
/* Conversion table for fast clipping process */
|
||||
/*---------------------------------------------*/
|
||||
|
||||
#if JD_TBLCLIP
|
||||
|
||||
#define BYTECLIP(v) Clip8[(UINT)(v) & 0x3FF]
|
||||
|
||||
static
|
||||
const BYTE Clip8[1024] = {
|
||||
/* 0..255 */
|
||||
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
|
||||
32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
|
||||
64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
|
||||
96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
|
||||
128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
|
||||
160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
|
||||
192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
|
||||
224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255,
|
||||
/* 256..511 */
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
|
||||
/* -512..-257 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
/* -256..-1 */
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
||||
};
|
||||
|
||||
#else /* JD_TBLCLIP */
|
||||
|
||||
inline
|
||||
BYTE BYTECLIP (
|
||||
INT val
|
||||
)
|
||||
{
|
||||
if (val < 0) val = 0;
|
||||
if (val > 255) val = 255;
|
||||
|
||||
return (BYTE)val;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
/* Allocate a memory block from memory pool */
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
static
|
||||
void* alloc_pool ( /* Pointer to allocated memory block (NULL:no memory available) */
|
||||
JDEC* jd, /* Pointer to the decompressor object */
|
||||
UINT nd /* Number of bytes to allocate */
|
||||
)
|
||||
{
|
||||
char *rp = 0;
|
||||
|
||||
|
||||
nd = (nd + 3) & ~3; /* Align block size to the word boundary */
|
||||
|
||||
if (jd->sz_pool >= nd) {
|
||||
jd->sz_pool -= nd;
|
||||
rp = (char*)jd->pool; /* Get start of available memory pool */
|
||||
jd->pool = (void*)(rp + nd); /* Allocate requierd bytes */
|
||||
}
|
||||
|
||||
return (void*)rp; /* Return allocated memory block (NULL:no memory to allocate) */
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
/* Create de-quantization and prescaling tables with a DQT segment */
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
static
|
||||
UINT create_qt_tbl ( /* 0:OK, !0:Failed */
|
||||
JDEC* jd, /* Pointer to the decompressor object */
|
||||
const BYTE* data, /* Pointer to the quantizer tables */
|
||||
UINT ndata /* Size of input data */
|
||||
)
|
||||
{
|
||||
UINT i;
|
||||
BYTE d, z;
|
||||
LONG *pb;
|
||||
|
||||
|
||||
while (ndata) { /* Process all tables in the segment */
|
||||
if (ndata < 65) return JDR_FMT1; /* Err: table size is unaligned */
|
||||
ndata -= 65;
|
||||
d = *data++; /* Get table property */
|
||||
if (d & 0xF0) return JDR_FMT1; /* Err: not 8-bit resolution */
|
||||
i = d & 3; /* Get table ID */
|
||||
pb = alloc_pool(jd, 64 * sizeof (LONG));/* Allocate a memory block for the table */
|
||||
if (!pb) return JDR_MEM1; /* Err: not enough memory */
|
||||
jd->qttbl[i] = pb; /* Register the table */
|
||||
for (i = 0; i < 64; i++) { /* Load the table */
|
||||
z = ZIG(i); /* Zigzag-order to raster-order conversion */
|
||||
pb[z] = (LONG)((DWORD)*data++ * IPSF(z)); /* Apply scale factor of Arai algorithm to the de-quantizers */
|
||||
}
|
||||
}
|
||||
|
||||
return JDR_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
/* Create huffman code tables with a DHT segment */
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
static
|
||||
UINT create_huffman_tbl ( /* 0:OK, !0:Failed */
|
||||
JDEC* jd, /* Pointer to the decompressor object */
|
||||
const BYTE* data, /* Pointer to the packed huffman tables */
|
||||
UINT ndata /* Size of input data */
|
||||
)
|
||||
{
|
||||
UINT i, j, b, np, cls, num;
|
||||
BYTE d, *pb, *pd;
|
||||
WORD hc, *ph;
|
||||
|
||||
|
||||
while (ndata) { /* Process all tables in the segment */
|
||||
if (ndata < 17) return JDR_FMT1; /* Err: wrong data size */
|
||||
ndata -= 17;
|
||||
d = *data++; /* Get table number and class */
|
||||
cls = (d >> 4); num = d & 0x0F; /* class = dc(0)/ac(1), table number = 0/1 */
|
||||
if (d & 0xEE) return JDR_FMT1; /* Err: invalid class/number */
|
||||
pb = alloc_pool(jd, 16); /* Allocate a memory block for the bit distribution table */
|
||||
if (!pb) return JDR_MEM1; /* Err: not enough memory */
|
||||
jd->huffbits[num][cls] = pb;
|
||||
for (np = i = 0; i < 16; i++) { /* Load number of patterns for 1 to 16-bit code */
|
||||
pb[i] = b = *data++;
|
||||
np += b; /* Get sum of code words for each code */
|
||||
}
|
||||
|
||||
ph = alloc_pool(jd, np * sizeof (WORD));/* Allocate a memory block for the code word table */
|
||||
if (!ph) return JDR_MEM1; /* Err: not enough memory */
|
||||
jd->huffcode[num][cls] = ph;
|
||||
hc = 0;
|
||||
for (j = i = 0; i < 16; i++) { /* Re-build huffman code word table */
|
||||
b = pb[i];
|
||||
while (b--) ph[j++] = hc++;
|
||||
hc <<= 1;
|
||||
}
|
||||
|
||||
if (ndata < np) return JDR_FMT1; /* Err: wrong data size */
|
||||
ndata -= np;
|
||||
pd = alloc_pool(jd, np); /* Allocate a memory block for the decoded data */
|
||||
if (!pd) return JDR_MEM1; /* Err: not enough memory */
|
||||
jd->huffdata[num][cls] = pd;
|
||||
for (i = 0; i < np; i++) { /* Load decoded data corresponds to each code ward */
|
||||
d = *data++;
|
||||
if (!cls && d > 11) return JDR_FMT1;
|
||||
*pd++ = d;
|
||||
}
|
||||
}
|
||||
|
||||
return JDR_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
/* Extract N bits from input stream */
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
static
|
||||
INT bitext ( /* >=0: extracted data, <0: error code */
|
||||
JDEC* jd, /* Pointer to the decompressor object */
|
||||
UINT nbit /* Number of bits to extract (1 to 11) */
|
||||
)
|
||||
{
|
||||
BYTE msk, s, *dp;
|
||||
UINT dc, v, f;
|
||||
|
||||
|
||||
msk = jd->dmsk; dc = jd->dctr; dp = jd->dptr; /* Bit mask, number of data available, read ptr */
|
||||
s = *dp; v = f = 0;
|
||||
do {
|
||||
if (!msk) { /* Next byte? */
|
||||
if (!dc) { /* No input data is available, re-fill input buffer */
|
||||
dp = jd->inbuf; /* Top of input buffer */
|
||||
dc = jd->infunc(jd, dp, JD_SZBUF);
|
||||
if (!dc) return 0 - (INT)JDR_INP; /* Err: read error or wrong stream termination */
|
||||
} else {
|
||||
dp++; /* Next data ptr */
|
||||
}
|
||||
dc--; /* Decrement number of available bytes */
|
||||
if (f) { /* In flag sequence? */
|
||||
f = 0; /* Exit flag sequence */
|
||||
if (*dp != 0) return 0 - (INT)JDR_FMT1; /* Err: unexpected flag is detected (may be collapted data) */
|
||||
*dp = s = 0xFF; /* The flag is a data 0xFF */
|
||||
} else {
|
||||
s = *dp; /* Get next data byte */
|
||||
if (s == 0xFF) { /* Is start of flag sequence? */
|
||||
f = 1; continue; /* Enter flag sequence */
|
||||
}
|
||||
}
|
||||
msk = 0x80; /* Read from MSB */
|
||||
}
|
||||
v <<= 1; /* Get a bit */
|
||||
if (s & msk) v++;
|
||||
msk >>= 1;
|
||||
nbit--;
|
||||
} while (nbit);
|
||||
jd->dmsk = msk; jd->dctr = dc; jd->dptr = dp;
|
||||
|
||||
return (INT)v;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
/* Extract a huffman decoded data from input stream */
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
static
|
||||
INT huffext ( /* >=0: decoded data, <0: error code */
|
||||
JDEC* jd, /* Pointer to the decompressor object */
|
||||
const BYTE* hbits, /* Pointer to the bit distribution table */
|
||||
const WORD* hcode, /* Pointer to the code word table */
|
||||
const BYTE* hdata /* Pointer to the data table */
|
||||
)
|
||||
{
|
||||
BYTE msk, s, *dp;
|
||||
UINT dc, v, f, bl, nd;
|
||||
|
||||
|
||||
msk = jd->dmsk; dc = jd->dctr; dp = jd->dptr; /* Bit mask, number of data available, read ptr */
|
||||
s = *dp; v = f = 0;
|
||||
bl = 16; /* Max code length */
|
||||
do {
|
||||
if (!msk) { /* Next byte? */
|
||||
if (!dc) { /* No input data is available, re-fill input buffer */
|
||||
dp = jd->inbuf; /* Top of input buffer */
|
||||
dc = jd->infunc(jd, dp, JD_SZBUF);
|
||||
if (!dc) return 0 - (INT)JDR_INP; /* Err: read error or wrong stream termination */
|
||||
} else {
|
||||
dp++; /* Next data ptr */
|
||||
}
|
||||
dc--; /* Decrement number of available bytes */
|
||||
if (f) { /* In flag sequence? */
|
||||
f = 0; /* Exit flag sequence */
|
||||
if (*dp != 0)
|
||||
return 0 - (INT)JDR_FMT1; /* Err: unexpected flag is detected (may be collapted data) */
|
||||
*dp = s = 0xFF; /* The flag is a data 0xFF */
|
||||
} else {
|
||||
s = *dp; /* Get next data byte */
|
||||
if (s == 0xFF) { /* Is start of flag sequence? */
|
||||
f = 1; continue; /* Enter flag sequence, get trailing byte */
|
||||
}
|
||||
}
|
||||
msk = 0x80; /* Read from MSB */
|
||||
}
|
||||
v <<= 1; /* Get a bit */
|
||||
if (s & msk) v++;
|
||||
msk >>= 1;
|
||||
|
||||
for (nd = *hbits++; nd; nd--) { /* Search the code word in this bit length */
|
||||
if (v == *hcode++) { /* Matched? */
|
||||
jd->dmsk = msk; jd->dctr = dc; jd->dptr = dp;
|
||||
return *hdata; /* Return the decoded data */
|
||||
}
|
||||
hdata++;
|
||||
}
|
||||
bl--;
|
||||
} while (bl);
|
||||
|
||||
return 0 - (INT)JDR_FMT1; /* Err: code not found (may be collapted data) */
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
/* Apply Inverse-DCT in Arai Algorithm (see also aa_idct.png) */
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
static
|
||||
void block_idct (
|
||||
LONG* src, /* Input block data (de-quantized and pre-scaled for Arai Algorithm) */
|
||||
BYTE* dst /* Pointer to the destination to store the block as byte array */
|
||||
)
|
||||
{
|
||||
const LONG M13 = (LONG)(1.41421*4096), M2 = (LONG)(1.08239*4096), M4 = (LONG)(2.61313*4096), M5 = (LONG)(1.84776*4096);
|
||||
LONG v0, v1, v2, v3, v4, v5, v6, v7;
|
||||
LONG t10, t11, t12, t13;
|
||||
UINT i;
|
||||
|
||||
/* Process columns */
|
||||
for (i = 0; i < 8; i++) {
|
||||
v0 = src[8 * 0]; /* Get even elements */
|
||||
v1 = src[8 * 2];
|
||||
v2 = src[8 * 4];
|
||||
v3 = src[8 * 6];
|
||||
|
||||
t10 = v0 + v2; /* Process the even elements */
|
||||
t12 = v0 - v2;
|
||||
t11 = (v1 - v3) * M13 >> 12;
|
||||
v3 += v1;
|
||||
t11 -= v3;
|
||||
v0 = t10 + v3;
|
||||
v3 = t10 - v3;
|
||||
v1 = t11 + t12;
|
||||
v2 = t12 - t11;
|
||||
|
||||
v4 = src[8 * 7]; /* Get odd elements */
|
||||
v5 = src[8 * 1];
|
||||
v6 = src[8 * 5];
|
||||
v7 = src[8 * 3];
|
||||
|
||||
t10 = v5 - v4; /* Process the odd elements */
|
||||
t11 = v5 + v4;
|
||||
t12 = v6 - v7;
|
||||
v7 += v6;
|
||||
v5 = (t11 - v7) * M13 >> 12;
|
||||
v7 += t11;
|
||||
t13 = (t10 + t12) * M5 >> 12;
|
||||
v4 = t13 - (t10 * M2 >> 12);
|
||||
v6 = t13 - (t12 * M4 >> 12) - v7;
|
||||
v5 -= v6;
|
||||
v4 -= v5;
|
||||
|
||||
src[8 * 0] = v0 + v7; /* Write-back transformed values */
|
||||
src[8 * 7] = v0 - v7;
|
||||
src[8 * 1] = v1 + v6;
|
||||
src[8 * 6] = v1 - v6;
|
||||
src[8 * 2] = v2 + v5;
|
||||
src[8 * 5] = v2 - v5;
|
||||
src[8 * 3] = v3 + v4;
|
||||
src[8 * 4] = v3 - v4;
|
||||
|
||||
src++; /* Next column */
|
||||
}
|
||||
|
||||
/* Process rows */
|
||||
src -= 8;
|
||||
for (i = 0; i < 8; i++) {
|
||||
v0 = src[0] + (128L << 8); /* Get even elements (remove DC offset (-128) here) */
|
||||
v1 = src[2];
|
||||
v2 = src[4];
|
||||
v3 = src[6];
|
||||
|
||||
t10 = v0 + v2; /* Process the even elements */
|
||||
t12 = v0 - v2;
|
||||
t11 = (v1 - v3) * M13 >> 12;
|
||||
v3 += v1;
|
||||
t11 -= v3;
|
||||
v0 = t10 + v3;
|
||||
v3 = t10 - v3;
|
||||
v1 = t11 + t12;
|
||||
v2 = t12 - t11;
|
||||
|
||||
v4 = src[7]; /* Get odd elements */
|
||||
v5 = src[1];
|
||||
v6 = src[5];
|
||||
v7 = src[3];
|
||||
|
||||
t10 = v5 - v4; /* Process the odd elements */
|
||||
t11 = v5 + v4;
|
||||
t12 = v6 - v7;
|
||||
v7 += v6;
|
||||
v5 = (t11 - v7) * M13 >> 12;
|
||||
v7 += t11;
|
||||
t13 = (t10 + t12) * M5 >> 12;
|
||||
v4 = t13 - (t10 * M2 >> 12);
|
||||
v6 = t13 - (t12 * M4 >> 12) - v7;
|
||||
v5 -= v6;
|
||||
v4 -= v5;
|
||||
|
||||
dst[0] = BYTECLIP((v0 + v7) >> 8); /* Descale the transformed values 8 bits and output */
|
||||
dst[7] = BYTECLIP((v0 - v7) >> 8);
|
||||
dst[1] = BYTECLIP((v1 + v6) >> 8);
|
||||
dst[6] = BYTECLIP((v1 - v6) >> 8);
|
||||
dst[2] = BYTECLIP((v2 + v5) >> 8);
|
||||
dst[5] = BYTECLIP((v2 - v5) >> 8);
|
||||
dst[3] = BYTECLIP((v3 + v4) >> 8);
|
||||
dst[4] = BYTECLIP((v3 - v4) >> 8);
|
||||
dst += 8;
|
||||
|
||||
src += 8; /* Next row */
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
/* Load all blocks in the MCU into working buffer */
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
static
|
||||
JRESULT mcu_load (
|
||||
JDEC* jd /* Pointer to the decompressor object */
|
||||
)
|
||||
{
|
||||
LONG *tmp = (LONG*)jd->workbuf; /* Block working buffer for de-quantize and IDCT */
|
||||
UINT blk, nby, nbc, i, z, id, cmp;
|
||||
INT b, d, e;
|
||||
BYTE *bp;
|
||||
const BYTE *hb, *hd;
|
||||
const WORD *hc;
|
||||
const LONG *dqf;
|
||||
|
||||
|
||||
nby = jd->msx * jd->msy; /* Number of Y blocks (1, 2 or 4) */
|
||||
nbc = 2; /* Number of C blocks (2) */
|
||||
bp = jd->mcubuf; /* Pointer to the first block */
|
||||
|
||||
for (blk = 0; blk < nby + nbc; blk++) {
|
||||
cmp = (blk < nby) ? 0 : blk - nby + 1; /* Component number 0:Y, 1:Cb, 2:Cr */
|
||||
id = cmp ? 1 : 0; /* Huffman table ID of the component */
|
||||
|
||||
/* Extract a DC element from input stream */
|
||||
hb = jd->huffbits[id][0]; /* Huffman table for the DC element */
|
||||
hc = jd->huffcode[id][0];
|
||||
hd = jd->huffdata[id][0];
|
||||
b = huffext(jd, hb, hc, hd); /* Extract a huffman coded data (bit length) */
|
||||
if (b < 0) return 0 - b; /* Err: invalid code or input */
|
||||
d = jd->dcv[cmp]; /* DC value of previous block */
|
||||
if (b) { /* If there is any difference from previous block */
|
||||
e = bitext(jd, b); /* Extract data bits */
|
||||
if (e < 0) return 0 - e; /* Err: input */
|
||||
b = 1 << (b - 1); /* MSB position */
|
||||
if (!(e & b)) e -= (b << 1) - 1; /* Restore sign if needed */
|
||||
d += e; /* Get current value */
|
||||
jd->dcv[cmp] = (SHORT)d; /* Save current DC value for next block */
|
||||
}
|
||||
dqf = jd->qttbl[jd->qtid[cmp]]; /* De-quantizer table ID for this component */
|
||||
tmp[0] = d * dqf[0] >> 8; /* De-quantize, apply scale factor of Arai algorithm and descale 8 bits */
|
||||
|
||||
/* Extract following 63 AC elements from input stream */
|
||||
for (i = 1; i < 64; i++) tmp[i] = 0; /* Clear rest of elements */
|
||||
hb = jd->huffbits[id][1]; /* Huffman table for the AC elements */
|
||||
hc = jd->huffcode[id][1];
|
||||
hd = jd->huffdata[id][1];
|
||||
i = 1; /* Top of the AC elements */
|
||||
do {
|
||||
b = huffext(jd, hb, hc, hd); /* Extract a huffman coded value (zero runs and bit length) */
|
||||
if (b == 0) break; /* EOB? */
|
||||
if (b < 0) return 0 - b; /* Err: invalid code or input error */
|
||||
z = (UINT)b >> 4; /* Number of leading zero elements */
|
||||
if (z) {
|
||||
i += z; /* Skip zero elements */
|
||||
if (i >= 64) return JDR_FMT1; /* Too long zero run */
|
||||
}
|
||||
if (b &= 0x0F) { /* Bit length */
|
||||
d = bitext(jd, b); /* Extract data bits */
|
||||
if (d < 0) return 0 - d; /* Err: input device */
|
||||
b = 1 << (b - 1); /* MSB position */
|
||||
if (!(d & b)) d -= (b << 1) - 1;/* Restore negative value if needed */
|
||||
z = ZIG(i); /* Zigzag-order to raster-order converted index */
|
||||
tmp[z] = d * dqf[z] >> 8; /* De-quantize, apply scale factor of Arai algorithm and descale 8 bits */
|
||||
}
|
||||
} while (++i < 64); /* Next AC element */
|
||||
|
||||
if (JD_USE_SCALE && jd->scale == 3)
|
||||
*bp = (*tmp / 256) + 128; /* If scale ratio is 1/8, IDCT can be ommited and only DC element is used */
|
||||
else
|
||||
block_idct(tmp, bp); /* Apply IDCT and store the block to the MCU buffer */
|
||||
|
||||
bp += 64; /* Next block */
|
||||
}
|
||||
|
||||
return JDR_OK; /* All blocks have been loaded successfully */
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
/* Output an MCU: Convert YCrCb to RGB and output it in RGB form */
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
static
|
||||
JRESULT mcu_output (
|
||||
JDEC* jd, /* Pointer to the decompressor object */
|
||||
UINT (*outfunc)(JDEC*, void*, JRECT*), /* RGB output function */
|
||||
UINT x, /* MCU position in the image (left of the MCU) */
|
||||
UINT y /* MCU position in the image (top of the MCU) */
|
||||
)
|
||||
{
|
||||
const INT CVACC = (sizeof (INT) > 2) ? 1024 : 128;
|
||||
UINT ix, iy, mx, my, rx, ry;
|
||||
INT yy, cb, cr;
|
||||
BYTE *py, *pc, *rgb24;
|
||||
JRECT rect;
|
||||
|
||||
|
||||
mx = jd->msx * 8; my = jd->msy * 8; /* MCU size (pixel) */
|
||||
rx = (x + mx <= jd->width) ? mx : jd->width - x; /* Output rectangular size (it may be clipped at right/bottom end) */
|
||||
ry = (y + my <= jd->height) ? my : jd->height - y;
|
||||
if (JD_USE_SCALE) {
|
||||
rx >>= jd->scale; ry >>= jd->scale;
|
||||
if (!rx || !ry) return JDR_OK; /* Skip this MCU if all pixel is to be rounded off */
|
||||
x >>= jd->scale; y >>= jd->scale;
|
||||
}
|
||||
rect.left = x; rect.right = x + rx - 1; /* Rectangular area in the frame buffer */
|
||||
rect.top = y; rect.bottom = y + ry - 1;
|
||||
|
||||
|
||||
if (!JD_USE_SCALE || jd->scale != 3) { /* Not for 1/8 scaling */
|
||||
|
||||
/* Build an RGB MCU from discrete comopnents */
|
||||
rgb24 = (BYTE*)jd->workbuf;
|
||||
for (iy = 0; iy < my; iy++) {
|
||||
pc = jd->mcubuf;
|
||||
py = pc + iy * 8;
|
||||
if (my == 16) { /* Double block height? */
|
||||
pc += 64 * 4 + (iy >> 1) * 8;
|
||||
if (iy >= 8) py += 64;
|
||||
} else { /* Single block height */
|
||||
pc += mx * 8 + iy * 8;
|
||||
}
|
||||
for (ix = 0; ix < mx; ix++) {
|
||||
cb = pc[0] - 128; /* Get Cb/Cr component and restore right level */
|
||||
cr = pc[64] - 128;
|
||||
if (mx == 16) { /* Double block width? */
|
||||
if (ix == 8) py += 64 - 8; /* Jump to next block if double block heigt */
|
||||
pc += ix & 1; /* Increase chroma pointer every two pixels */
|
||||
} else { /* Single block width */
|
||||
pc++; /* Increase chroma pointer every pixel */
|
||||
}
|
||||
yy = *py++; /* Get Y component */
|
||||
|
||||
/* Convert YCbCr to RGB */
|
||||
*rgb24++ = /* R */ BYTECLIP(yy + ((INT)(1.402 * CVACC) * cr) / CVACC);
|
||||
*rgb24++ = /* G */ BYTECLIP(yy - ((INT)(0.344 * CVACC) * cb + (INT)(0.714 * CVACC) * cr) / CVACC);
|
||||
*rgb24++ = /* B */ BYTECLIP(yy + ((INT)(1.772 * CVACC) * cb) / CVACC);
|
||||
}
|
||||
}
|
||||
|
||||
/* Descale the MCU rectangular if needed */
|
||||
if (JD_USE_SCALE && jd->scale) {
|
||||
UINT x, y, r, g, b, s, w, a;
|
||||
BYTE *op;
|
||||
|
||||
/* Get averaged RGB value of each square correcponds to a pixel */
|
||||
s = jd->scale * 2; /* Bumber of shifts for averaging */
|
||||
w = 1 << jd->scale; /* Width of square */
|
||||
a = (mx - w) * 3; /* Bytes to skip for next line in the square */
|
||||
op = (BYTE*)jd->workbuf;
|
||||
for (iy = 0; iy < my; iy += w) {
|
||||
for (ix = 0; ix < mx; ix += w) {
|
||||
rgb24 = (BYTE*)jd->workbuf + (iy * mx + ix) * 3;
|
||||
r = g = b = 0;
|
||||
for (y = 0; y < w; y++) { /* Accumulate RGB value in the square */
|
||||
for (x = 0; x < w; x++) {
|
||||
r += *rgb24++;
|
||||
g += *rgb24++;
|
||||
b += *rgb24++;
|
||||
}
|
||||
rgb24 += a;
|
||||
} /* Put the averaged RGB value as a pixel */
|
||||
*op++ = (BYTE)(r >> s);
|
||||
*op++ = (BYTE)(g >> s);
|
||||
*op++ = (BYTE)(b >> s);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
} else { /* For only 1/8 scaling (left-top pixel in each block are the DC value of the block) */
|
||||
|
||||
/* Build a 1/8 descaled RGB MCU from discrete comopnents */
|
||||
rgb24 = (BYTE*)jd->workbuf;
|
||||
pc = jd->mcubuf + mx * my;
|
||||
cb = pc[0] - 128; /* Get Cb/Cr component and restore right level */
|
||||
cr = pc[64] - 128;
|
||||
for (iy = 0; iy < my; iy += 8) {
|
||||
py = jd->mcubuf;
|
||||
if (iy == 8) py += 64 * 2;
|
||||
for (ix = 0; ix < mx; ix += 8) {
|
||||
yy = *py; /* Get Y component */
|
||||
py += 64;
|
||||
|
||||
/* Convert YCbCr to RGB */
|
||||
*rgb24++ = /* R */ BYTECLIP(yy + ((INT)(1.402 * CVACC) * cr / CVACC));
|
||||
*rgb24++ = /* G */ BYTECLIP(yy - ((INT)(0.344 * CVACC) * cb + (INT)(0.714 * CVACC) * cr) / CVACC);
|
||||
*rgb24++ = /* B */ BYTECLIP(yy + ((INT)(1.772 * CVACC) * cb / CVACC));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Squeeze up pixel table if a part of MCU is to be truncated */
|
||||
mx >>= jd->scale;
|
||||
if (rx < mx) {
|
||||
BYTE *s, *d;
|
||||
UINT x, y;
|
||||
|
||||
s = d = (BYTE*)jd->workbuf;
|
||||
for (y = 0; y < ry; y++) {
|
||||
for (x = 0; x < rx; x++) { /* Copy effective pixels */
|
||||
*d++ = *s++;
|
||||
*d++ = *s++;
|
||||
*d++ = *s++;
|
||||
}
|
||||
s += (mx - rx) * 3; /* Skip truncated pixels */
|
||||
}
|
||||
}
|
||||
|
||||
/* Convert RGB888 to RGB565 if needed */
|
||||
if (JD_FORMAT == 1) {
|
||||
BYTE *s = (BYTE*)jd->workbuf;
|
||||
WORD w, *d = (WORD*)s;
|
||||
UINT n = rx * ry;
|
||||
|
||||
do {
|
||||
w = (*s++ & 0xF8) << 8; /* RRRRR----------- */
|
||||
w |= (*s++ & 0xFC) << 3; /* -----GGGGGG----- */
|
||||
w |= *s++ >> 3; /* -----------BBBBB */
|
||||
*d++ = w;
|
||||
} while (--n);
|
||||
}
|
||||
|
||||
/* Output the RGB rectangular */
|
||||
return outfunc(jd, jd->workbuf, &rect) ? JDR_OK : JDR_INTR;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
/* Process restart interval */
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
static
|
||||
JRESULT restart (
|
||||
JDEC* jd, /* Pointer to the decompressor object */
|
||||
WORD rstn /* Expected restert sequense number */
|
||||
)
|
||||
{
|
||||
UINT i, dc;
|
||||
WORD d;
|
||||
BYTE *dp;
|
||||
|
||||
|
||||
/* Discard padding bits and get two bytes from the input stream */
|
||||
dp = jd->dptr; dc = jd->dctr;
|
||||
d = 0;
|
||||
for (i = 0; i < 2; i++) {
|
||||
if (!dc) { /* No input data is available, re-fill input buffer */
|
||||
dp = jd->inbuf;
|
||||
dc = jd->infunc(jd, dp, JD_SZBUF);
|
||||
if (!dc) return JDR_INP;
|
||||
} else {
|
||||
dp++;
|
||||
}
|
||||
dc--;
|
||||
d = (d << 8) | *dp; /* Get a byte */
|
||||
}
|
||||
jd->dptr = dp; jd->dctr = dc; jd->dmsk = 0;
|
||||
|
||||
/* Check the marker */
|
||||
if ((d & 0xFFD8) != 0xFFD0 || (d & 7) != (rstn & 7))
|
||||
return JDR_FMT1; /* Err: expected RSTn marker is not detected (may be collapted data) */
|
||||
|
||||
/* Reset DC offset */
|
||||
jd->dcv[2] = jd->dcv[1] = jd->dcv[0] = 0;
|
||||
|
||||
return JDR_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
/* Analyze the JPEG image and Initialize decompressor object */
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
#define LDB_WORD(ptr) (WORD)(((WORD)*((BYTE*)(ptr))<<8)|(WORD)*(BYTE*)((ptr)+1))
|
||||
|
||||
|
||||
JRESULT jd_prepare (
|
||||
JDEC* jd, /* Blank decompressor object */
|
||||
UINT (*infunc)(JDEC*, BYTE*, UINT), /* JPEG strem input function */
|
||||
void* pool, /* Working buffer for the decompression session */
|
||||
UINT sz_pool, /* Size of working buffer */
|
||||
void* dev /* I/O device identifier for the session */
|
||||
)
|
||||
{
|
||||
BYTE *seg, b;
|
||||
WORD marker;
|
||||
DWORD ofs;
|
||||
UINT n, i, j, len;
|
||||
JRESULT rc;
|
||||
|
||||
|
||||
if (!pool) return JDR_PAR;
|
||||
|
||||
jd->pool = pool; /* Work memroy */
|
||||
jd->sz_pool = sz_pool; /* Size of given work memory */
|
||||
jd->infunc = infunc; /* Stream input function */
|
||||
jd->device = dev; /* I/O device identifier */
|
||||
jd->nrst = 0; /* No restart interval (default) */
|
||||
|
||||
for (i = 0; i < 2; i++) { /* Nulls pointers */
|
||||
for (j = 0; j < 2; j++) {
|
||||
jd->huffbits[i][j] = 0;
|
||||
jd->huffcode[i][j] = 0;
|
||||
jd->huffdata[i][j] = 0;
|
||||
}
|
||||
}
|
||||
for (i = 0; i < 4; i++) jd->qttbl[i] = 0;
|
||||
|
||||
jd->inbuf = seg = alloc_pool(jd, JD_SZBUF); /* Allocate stream input buffer */
|
||||
if (!seg) return JDR_MEM1;
|
||||
|
||||
if (jd->infunc(jd, seg, 2) != 2) return JDR_INP;/* Check SOI marker */
|
||||
if (LDB_WORD(seg) != 0xFFD8) return JDR_FMT1; /* Err: SOI is not detected */
|
||||
ofs = 2;
|
||||
|
||||
for (;;) {
|
||||
/* Get a JPEG marker */
|
||||
if (jd->infunc(jd, seg, 4) != 4) return JDR_INP;
|
||||
marker = LDB_WORD(seg); /* Marker */
|
||||
len = LDB_WORD(seg + 2); /* Length field */
|
||||
if (len <= 2 || (marker >> 8) != 0xFF) return JDR_FMT1;
|
||||
len -= 2; /* Content size excluding length field */
|
||||
ofs += 4 + len; /* Number of bytes loaded */
|
||||
|
||||
switch (marker & 0xFF) {
|
||||
case 0xC0: /* SOF0 (baseline JPEG) */
|
||||
/* Load segment data */
|
||||
if (len > JD_SZBUF) return JDR_MEM2;
|
||||
if (jd->infunc(jd, seg, len) != len) return JDR_INP;
|
||||
|
||||
jd->width = LDB_WORD(seg+3); /* Image width in unit of pixel */
|
||||
jd->height = LDB_WORD(seg+1); /* Image height in unit of pixel */
|
||||
if (seg[5] != 3) return JDR_FMT3; /* Err: Supports only Y/Cb/Cr format */
|
||||
|
||||
/* Check three image components */
|
||||
for (i = 0; i < 3; i++) {
|
||||
b = seg[7 + 3 * i]; /* Get sampling factor */
|
||||
if (!i) { /* Y component */
|
||||
if (b != 0x11 && b != 0x22 && b != 0x21)/* Check sampling factor */
|
||||
return JDR_FMT3; /* Err: Supports only 4:4:4, 4:2:0 or 4:2:2 */
|
||||
jd->msx = b >> 4; jd->msy = b & 15; /* Size of MCU [blocks] */
|
||||
} else { /* Cb/Cr component */
|
||||
if (b != 0x11) return JDR_FMT3; /* Err: Sampling factor of Cr/Cb must be 1 */
|
||||
}
|
||||
b = seg[8 + 3 * i]; /* Get dequantizer table ID for this component */
|
||||
if (b > 3) return JDR_FMT3; /* Err: Invalid ID */
|
||||
jd->qtid[i] = b;
|
||||
}
|
||||
break;
|
||||
|
||||
case 0xDD: /* DRI */
|
||||
/* Load segment data */
|
||||
if (len > JD_SZBUF) return JDR_MEM2;
|
||||
if (jd->infunc(jd, seg, len) != len) return JDR_INP;
|
||||
|
||||
/* Get restart interval (MCUs) */
|
||||
jd->nrst = LDB_WORD(seg);
|
||||
break;
|
||||
|
||||
case 0xC4: /* DHT */
|
||||
/* Load segment data */
|
||||
if (len > JD_SZBUF) return JDR_MEM2;
|
||||
if (jd->infunc(jd, seg, len) != len) return JDR_INP;
|
||||
|
||||
/* Create huffman tables */
|
||||
rc = create_huffman_tbl(jd, seg, len);
|
||||
if (rc) return rc;
|
||||
break;
|
||||
|
||||
case 0xDB: /* DQT */
|
||||
/* Load segment data */
|
||||
if (len > JD_SZBUF) return JDR_MEM2;
|
||||
if (jd->infunc(jd, seg, len) != len) return JDR_INP;
|
||||
|
||||
/* Create de-quantizer tables */
|
||||
rc = create_qt_tbl(jd, seg, len);
|
||||
if (rc) return rc;
|
||||
break;
|
||||
|
||||
case 0xDA: /* SOS */
|
||||
/* Load segment data */
|
||||
if (len > JD_SZBUF) return JDR_MEM2;
|
||||
if (jd->infunc(jd, seg, len) != len) return JDR_INP;
|
||||
|
||||
if (!jd->width || !jd->height) return JDR_FMT1; /* Err: Invalid image size */
|
||||
|
||||
if (seg[0] != 3) return JDR_FMT3; /* Err: Supports only three color components format */
|
||||
|
||||
/* Check if all tables corresponding to each components have been loaded */
|
||||
for (i = 0; i < 3; i++) {
|
||||
b = seg[2 + 2 * i]; /* Get huffman table ID */
|
||||
if (b != 0x00 && b != 0x11) return JDR_FMT3; /* Err: Different table number for DC/AC element */
|
||||
b = i ? 1 : 0;
|
||||
if (!jd->huffbits[b][0] || !jd->huffbits[b][1]) /* Check huffman table for this component */
|
||||
return JDR_FMT1; /* Err: Huffman table not loaded */
|
||||
if (!jd->qttbl[jd->qtid[i]]) return JDR_FMT1; /* Err: Dequantizer table not loaded */
|
||||
}
|
||||
|
||||
/* Allocate working buffer for MCU and RGB */
|
||||
n = jd->msy * jd->msx; /* Number of Y blocks in the MCU */
|
||||
if (!n) return JDR_FMT1; /* Err: SOF0 has not been loaded */
|
||||
len = n * 64 * 2 + 64; /* Allocate buffer for IDCT and RGB output */
|
||||
if (len < 256) len = 256; /* but at least 256 byte is required for IDCT */
|
||||
jd->workbuf = alloc_pool(jd, len); /* and it may occupy a part of following MCU working buffer for RGB output */
|
||||
if (!jd->workbuf) return JDR_MEM1; /* Err: not enough memory */
|
||||
jd->mcubuf = alloc_pool(jd, (n + 2) * 64); /* Allocate MCU working buffer */
|
||||
if (!jd->mcubuf) return JDR_MEM1; /* Err: not enough memory */
|
||||
|
||||
/* Pre-load the JPEG data to extract it from the bit stream */
|
||||
jd->dptr = seg; jd->dctr = 0; jd->dmsk = 0; /* Prepare to read bit stream */
|
||||
if (ofs %= JD_SZBUF) { /* Align read offset to JD_SZBUF */
|
||||
jd->dctr = jd->infunc(jd, seg + ofs, JD_SZBUF - (UINT)ofs);
|
||||
jd->dptr = seg + ofs - 1;
|
||||
}
|
||||
|
||||
return JDR_OK; /* Initialization succeeded. Ready to decompress the JPEG image. */
|
||||
|
||||
case 0xC1: /* SOF1 */
|
||||
case 0xC2: /* SOF2 */
|
||||
case 0xC3: /* SOF3 */
|
||||
case 0xC5: /* SOF5 */
|
||||
case 0xC6: /* SOF6 */
|
||||
case 0xC7: /* SOF7 */
|
||||
case 0xC9: /* SOF9 */
|
||||
case 0xCA: /* SOF10 */
|
||||
case 0xCB: /* SOF11 */
|
||||
case 0xCD: /* SOF13 */
|
||||
case 0xCE: /* SOF14 */
|
||||
case 0xCF: /* SOF15 */
|
||||
case 0xD9: /* EOI */
|
||||
return JDR_FMT3; /* Unsuppoted JPEG standard (may be progressive JPEG) */
|
||||
|
||||
default: /* Unknown segment (comment, exif or etc..) */
|
||||
/* Skip segment data */
|
||||
if (jd->infunc(jd, 0, len) != len) /* Null pointer specifies to skip bytes of stream */
|
||||
return JDR_INP;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------*/
|
||||
/* Start to decompress the JPEG picture */
|
||||
/*-----------------------------------------------------------------------*/
|
||||
|
||||
JRESULT jd_decomp (
|
||||
JDEC* jd, /* Initialized decompression object */
|
||||
UINT (*outfunc)(JDEC*, void*, JRECT*), /* RGB output function */
|
||||
BYTE scale /* Output de-scaling factor (0 to 3) */
|
||||
)
|
||||
{
|
||||
UINT x, y, mx, my;
|
||||
WORD rst, rsc;
|
||||
JRESULT rc;
|
||||
|
||||
|
||||
if (scale > (JD_USE_SCALE ? 3 : 0)) return JDR_PAR;
|
||||
jd->scale = scale;
|
||||
|
||||
mx = jd->msx * 8; my = jd->msy * 8; /* Size of the MCU (pixel) */
|
||||
|
||||
jd->dcv[2] = jd->dcv[1] = jd->dcv[0] = 0; /* Initialize DC values */
|
||||
rst = rsc = 0;
|
||||
|
||||
rc = JDR_OK;
|
||||
for (y = 0; y < jd->height; y += my) { /* Vertical loop of MCUs */
|
||||
for (x = 0; x < jd->width; x += mx) { /* Horizontal loop of MCUs */
|
||||
if (jd->nrst && rst++ == jd->nrst) { /* Process restart interval if enabled */
|
||||
rc = restart(jd, rsc++);
|
||||
if (rc != JDR_OK) return rc;
|
||||
rst = 1;
|
||||
}
|
||||
rc = mcu_load(jd); /* Load an MCU (decompress huffman coded stream and apply IDCT) */
|
||||
if (rc != JDR_OK) return rc;
|
||||
rc = mcu_output(jd, outfunc, x, y); /* Output the MCU (color space conversion, scaling and output) */
|
||||
if (rc != JDR_OK) return rc;
|
||||
}
|
||||
}
|
||||
|
||||
return rc;
|
||||
}
|
||||
#endif//SUPPORT_JPEG
|
||||
|
||||
|
@ -1,4 +1,5 @@
|
||||
idf_component_register(SRC_DIRS .
|
||||
PRIV_INCLUDE_DIRS .
|
||||
PRIV_REQUIRES test_utils esp32-camera nvs_flash
|
||||
PRIV_REQUIRES test_utils esp32-camera nvs_flash mbedtls esp_timer
|
||||
EMBED_TXTFILES pictures/testimg.jpeg pictures/test_outside.jpeg pictures/test_inside.jpeg)
|
||||
target_compile_options(${COMPONENT_LIB} PRIVATE "-Wno-format")
|
||||
|
@ -7,6 +7,7 @@
|
||||
#include <mbedtls/base64.h>
|
||||
#include "esp_log.h"
|
||||
#include "driver/i2c.h"
|
||||
#include "esp_timer.h"
|
||||
|
||||
#include "esp_camera.h"
|
||||
|
||||
@ -18,6 +19,8 @@
|
||||
#define BOARD_CAMERA_MODEL_ESP32_S3_EYE 1
|
||||
#endif
|
||||
|
||||
#define portTICK_RATE_MS portTICK_PERIOD_MS
|
||||
|
||||
// WROVER-KIT PIN Map
|
||||
#if BOARD_WROVER_KIT
|
||||
|
||||
@ -382,7 +385,7 @@ static void print_rgb888_img(uint8_t *img, int width, int height)
|
||||
|
||||
static void tjpgd_decode_rgb565(uint8_t *mjpegbuffer, uint32_t size, uint8_t *outbuffer)
|
||||
{
|
||||
jpg2rgb565(mjpegbuffer, size, outbuffer, JPG_SCALE_NONE);
|
||||
jpg2rgb565(mjpegbuffer, size, outbuffer, JPEG_IMAGE_SCALE_0);
|
||||
}
|
||||
|
||||
static void tjpgd_decode_rgb888(uint8_t *mjpegbuffer, uint32_t size, uint8_t *outbuffer)
|
||||
|
Reference in New Issue
Block a user