init

2025-04-29 21:38:06 +02:00
commit 7acfb06d42
122 changed files with 27389 additions and 0 deletions
--- a/managed_components/espressif__esp32-camera/conversions/esp_jpg_decode.c
+++ b/managed_components/espressif__esp32-camera/conversions/esp_jpg_decode.c
@@ -0,0 +1,134 @@
+// 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
+    writer(arg, 0, 0, output_width, output_height, NULL);
+    //output write
+    jres = jd_decomp(&decoder, _jpg_write, (uint8_t)jpeg.scale);
+    //output end
+    writer(arg, output_width, output_height, output_width, output_height, NULL);
+
+    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;
+}
+