Merge pull request #714 from bbawj/master

Add error handling for esp_jpg_decode

conversions/esp_jpg_decode.c

@@ -114,11 +114,17 @@ esp_err_t esp_jpg_decode(size_t len, jpg_scale_t scale, jpg_reader_cb reader, jp
     uint16_t output_height = decoder.height / (1 << (uint8_t)(jpeg.scale));
 
     //output start
-    writer(arg, 0, 0, output_width, output_height, NULL);
+    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
-    writer(arg, output_width, output_height, output_width, output_height, NULL);
+    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]);

conversions/to_bmp.c

@@ -78,8 +78,10 @@ static bool _rgb_write(void * arg, uint16_t x, uint16_t y, uint16_t w, uint16_t
             jpeg->height = h;
             //if output is null, this is BMP
             if(!jpeg->output){
-                jpeg->output = (uint8_t *)_malloc((w*h*3)+jpeg->data_offset);
+                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;
                 }
             }
@@ -121,8 +123,10 @@ static bool _rgb565_write(void * arg, uint16_t x, uint16_t y, uint16_t w, uint16
             jpeg->height = h;
             //if output is null, this is BMP
             if(!jpeg->output){
-                jpeg->output = (uint8_t *)_malloc((w*h*3)+jpeg->data_offset);
+                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;
                 }
             }