feat(jpeg_decoder): Add decode to yuv420 since esp32p4 version3

components/esp_driver_jpeg/jpeg_decode.c

@@ -382,6 +382,11 @@ static esp_err_t jpeg_dec_config_dma_descriptor(jpeg_decoder_handle_t decoder_en
         case JPEG_DECODE_OUT_FORMAT_YUV444:
             best_hb_idx = JPEG_DEC_YUV444_HB;
             break;
+#if !(CONFIG_ESP_REV_MIN_FULL < 300 && CONFIG_IDF_TARGET_ESP32P4) // Invisible for unsupported chips
+        case JPEG_DECODE_OUT_FORMAT_YUV420:
+            best_hb_idx = JPEG_DEC_YUV420_HB;
+            break;
+#endif
         default:
             ESP_LOGE(TAG, "wrong, we don't support decode to such format.");
             return ESP_ERR_NOT_SUPPORTED;
@@ -468,7 +473,17 @@ static void jpeg_dec_config_dma_csc(jpeg_decoder_handle_t decoder_engine, dma2d_
         } else if (decoder_engine->sample_method == JPEG_DOWN_SAMPLING_YUV420) {
             rx_csc_option = DMA2D_CSC_RX_YUV420_TO_YUV444;
         }
-    } else {
+    }
+#if !(CONFIG_ESP_REV_MIN_FULL < 300 && CONFIG_IDF_TARGET_ESP32P4) // Invisible for unsupported chips
+    else if (decoder_engine->output_format == JPEG_DECODE_OUT_FORMAT_YUV420) {
+        if (decoder_engine->sample_method == JPEG_DOWN_SAMPLING_YUV422) {
+            rx_csc_option = DMA2D_CSC_RX_YUV422_TO_YUV420;
+        } else if (decoder_engine->sample_method == JPEG_DOWN_SAMPLING_YUV444) {
+            rx_csc_option = DMA2D_CSC_RX_YUV444_TO_YUV420;
+        }
+    }
+#endif
+    else {
         rx_csc_option = DMA2D_CSC_RX_NONE;
     }
 
@@ -565,6 +580,7 @@ static bool jpeg_dec_transaction_on_picked(uint32_t channel_num, const dma2d_tra
 
 static esp_err_t jpeg_color_space_support_check(jpeg_decoder_handle_t decoder_engine)
 {
+#if !(CONFIG_ESP_REV_MIN_FULL < 300 && CONFIG_IDF_TARGET_ESP32P4) // Invisible for unsupported chips
     if (decoder_engine->sample_method == JPEG_DOWN_SAMPLING_YUV444) {
         if (decoder_engine->output_format == JPEG_DECODE_OUT_FORMAT_YUV422 || decoder_engine->output_format == JPEG_DECODE_OUT_FORMAT_YUV420) {
             ESP_LOGE(TAG, "Detected YUV444 but want to convert to YUV422/YUV420, which is not supported");
@@ -581,6 +597,12 @@ static esp_err_t jpeg_color_space_support_check(jpeg_decoder_handle_t decoder_en
             return ESP_ERR_INVALID_ARG;
         }
     }
+#else
+    if (decoder_engine->sample_method != JPEG_DOWN_SAMPLING_YUV422) {
+        ESP_LOGE(TAG, "Detected YUV444/YUV420 but want to convert to YUV422, which is not supported");
+        return ESP_ERR_INVALID_ARG;
+    }
+#endif
     return ESP_OK;
 }
 

components/esp_driver_jpeg/jpeg_param.c

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
+ * SPDX-FileCopyrightText: 2024-2025 Espressif Systems (Shanghai) CO LTD
  *
  * SPDX-License-Identifier: Apache-2.0
  */
@@ -40,10 +40,10 @@ const uint8_t zigzag_arr[64] = {
  * data stream during the decoding process.
  */
 const uint32_t dec_hb_tbl[JPEG_DOWN_SAMPLING_NUM][JPEG_DEC_BEST_HB_MAX] = {
-    {40, 40, 40, 32, 0},
+    {40, 40, 40, 32, 0, 32},
-    {64, 32, 32, 64, 0},
+    {64, 32, 32, 64, 0, 32},
-    {48, 32, 32, 48, 0},
+    {48, 32, 32, 48, 0, 48},
-    {96,  0,  0,  0, 96},
+    {96,  0,  0,  0, 96, 0},
 };
 
 /**

components/esp_driver_jpeg/jpeg_private.h

@@ -61,6 +61,7 @@ typedef enum {
     JPEG_DEC_RGB888_HB = 2,        /*!< output RGB888 format */
     JPEG_DEC_RGB565_HB = 3,        /*!< output RGB565 format */
     JPEG_DEC_GRAY_HB = 4,          /*!< output the gray picture */
+    JPEG_DEC_YUV420_HB = 5,        /*!< output YUV420 format */
     JPEG_DEC_BEST_HB_MAX,          /*!< Max value of output formats */
 } jpeg_dec_format_hb_t;