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fix(jpeg): JPEG can encode and decode in encryption situation

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This commit is contained in:
C.S.M
2026-07-13 15:00:31 +08:00
parent 41582e1777
commit e92e669dee
14 changed files with 559 additions and 20 deletions
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examples/peripherals/jpeg/jpeg_encode/main/jpeg_encode_example_main.c
+16 -2
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@@ -8,6 +8,7 @@
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mbedtls/base64.h"
#include "esp_check.h"
#include "driver/jpeg_encode.h"
@@ -44,6 +45,7 @@ void app_main(void)
const size_t embedded_size = esp720p_rgb_end - esp720p_rgb_start;
uint32_t jpeg_size = 0;
jpeg_encoder_handle_t jpeg_handle = NULL;
uint8_t *rgb_buf = NULL;
printf("Loading embedded BGR24 image from flash...\n");
printf("Embedded raw image size: %zu bytes\n", embedded_size);
@@ -60,6 +62,18 @@ void app_main(void)
.height = EXAMPLE_HEIGHT,
};
const uint8_t *rgb_src = esp720p_rgb_start;
#if CONFIG_SECURE_FLASH_ENC_ENABLED
size_t input_buffer_size = 0;
jpeg_encode_memory_alloc_cfg_t rx_mem_cfg = {
.buffer_direction = JPEG_ENC_ALLOC_INPUT_BUFFER,
};
rgb_buf = (uint8_t *)jpeg_alloc_encoder_mem(EXAMPLE_RGB_FRAME_SIZE, &rx_mem_cfg, &input_buffer_size);
assert(rgb_buf != NULL);
memcpy(rgb_buf, esp720p_rgb_start, EXAMPLE_RGB_FRAME_SIZE);
rgb_src = rgb_buf;
#endif
size_t result_buffer_size = 0;
/* The output JPEG is compressed, so the example does not need to reserve
* a full raw-frame worth of space for the bitstream. This 10:1 estimate
@@ -78,9 +92,8 @@ void app_main(void)
};
ESP_ERROR_CHECK(jpeg_new_encoder_engine(&encode_eng_cfg, &jpeg_handle));
printf("JPEG encoder will read the embedded raw buffer directly from flash.\n");
printf("Encoding BGR24(raw) -> JPEG...\n");
ESP_ERROR_CHECK(jpeg_encoder_process(jpeg_handle, &enc_config, esp720p_rgb_start, EXAMPLE_RGB_FRAME_SIZE,
ESP_ERROR_CHECK(jpeg_encoder_process(jpeg_handle, &enc_config, rgb_src, EXAMPLE_RGB_FRAME_SIZE,
jpeg_buf, result_buffer_size, &jpeg_size));
printf("Encoded JPEG size: %" PRIu32 " bytes\n", jpeg_size);
@@ -103,4 +116,5 @@ void app_main(void)
ESP_ERROR_CHECK(jpeg_del_encoder_engine(jpeg_handle));
free(encoded);
free(jpeg_buf);
free(rgb_buf);
}