diff --git a/multimedia/av_codec/native_avcodec_videoencoder.h b/multimedia/av_codec/native_avcodec_videoencoder.h
index a0ccb13b6d782a5ea7520a9bc64f7d5d24a346af..7eb5f9a75181cc6a70fdd3d10e19cc56414b99e9 100644
--- a/multimedia/av_codec/native_avcodec_videoencoder.h
+++ b/multimedia/av_codec/native_avcodec_videoencoder.h
@@ -406,6 +406,84 @@ OH_AVErrCode OH_VideoEncoder_PushInputParameter(OH_AVCodec *codec, uint32_t inde
  */
 OH_AVErrCode OH_VideoEncoder_FreeOutputBuffer(OH_AVCodec *codec, uint32_t index);
 
+/**
+ * @brief Queries the index of the next available input buffer.
+ *
+ * This API must be followed by calling {@link OH_VideoEncoder_GetInputBuffer} to obtain the buffer handle,
+ * which should then be passed to the encoder via {@link OH_VideoEncoder_PushInputBuffer}.\n
+ * Note: This operation is only supported in synchronous mode.\n
+ *
+ * @syscap SystemCapability.Multimedia.Media.VideoEncoder
+ * @param codec Pointer to an OH_AVCodec instance
+ * @param index The index of the input buffer
+ * @param timeoutUs Timeout duration in microseconds, negative value indicates infinite wait.
+ * @return Returns AV_ERR_OK if the execution is successful,
+ * otherwise returns a specific error code, refer to {@link OH_AVErrCode}.
+ * {@link AV_ERR_NO_MEMORY}, internal errors in the input encode instance, such as an abnormal NULL.
+ * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid.
+ * {@link AV_ERR_UNKNOWN}, unknown error.
+ * {@link AV_ERR_SERVICE_DIED}, avcodec service is died.
+ * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state.
+ * {@link AV_ERR_OPERATE_NOT_PERMIT}, not permitted in asynchronous mode.
+ * {@link AV_ERR_TRY_AGAIN_LATER}, query failed, recommended retry after delay..
+ * @since 20
+ */
+OH_AVErrCode OH_VideoEncoder_QueryInputBuffer(struct OH_AVCodec *codec, uint32_t *index, int64_t timeoutUs);
+
+/**
+ * @brief Acquires the handle of an available input buffer.
+ *
+ * Note: It's only applicable in synchronous mode.\n
+ *
+ * @syscap SystemCapability.Multimedia.Media.VideoEncoder
+ * @param codec Pointer to an OH_AVCodec instance
+ * @param index Buffer index obtained via {@link OH_VideoEncoder_QueryInputBuffer}.
+ * @return Returns a Pointer to an OH_AVBuffer instance.
+ * Return nullptr if no buffer available.
+ * @since 20
+ */
+OH_AVBuffer *OH_VideoEncoder_GetInputBuffer(struct OH_AVCodec *codec, uint32_t index);
+
+/**
+ * @brief Queries the index of the next available output buffer.
+ *
+ * The obtained buffer handle through {@link OH_VideoEncoder_GetOutputBuffer} must be
+ * return to the encoder via {@link OH_VideoEncoder_FreeOutputBuffer}.\n
+ * Note: This operation is only supported in synchronous mode.\n
+ *
+ * @syscap SystemCapability.Multimedia.Media.VideoEncoder
+ * @param codec Pointer to an OH_AVCodec instance
+ * @param index The index value corresponding to the output buffer
+ * @param timeoutUs Timeout duration in microseconds, negative value indicates infinite wait.
+ * @return Returns AV_ERR_OK if the execution is successful,
+ * otherwise returns a specific error code, refer to {@link OH_AVErrCode}.
+ * {@link AV_ERR_NO_MEMORY}, internal errors in the input encode instance, such as an abnormal NULL.
+ * {@link AV_ERR_INVALID_VAL}, the encoder is nullptr or invalid.
+ * {@link AV_ERR_UNKNOWN}, unknown error.
+ * {@link AV_ERR_SERVICE_DIED}, avcodec service is died.
+ * {@link AV_ERR_INVALID_STATE}, this interface was called in invalid state.
+ * {@link AV_ERR_OPERATE_NOT_PERMIT}, not permitted in asynchronous mode.
+ * {@link AV_ERR_STREAM_CHANGED}, stream format changed, call {@link OH_VideoEncoder_GetOutputDescription} to
+ * retrieve new steam information.
+ * {@link AV_ERR_TRY_AGAIN_LATER}, query failed, recommended retry after delay.
+ * @since 20
+ */
+OH_AVErrCode OH_VideoEncoder_QueryOutputBuffer(struct OH_AVCodec *codec, uint32_t *index, int64_t timeoutUs);
+
+/**
+ * @brief Acquires the handle of an available output buffer.
+ *
+ * Note: It's only applicable in synchronous mode.\n
+ *
+ * @syscap SystemCapability.Multimedia.Media.VideoEncoder
+ * @param codec Pointer to an OH_AVCodec instance
+ * @param index Buffer index obtained via {@link OH_VideoEncoder_QueryOutputBuffer}.
+ * @return Returns a Pointer to an OH_AVBuffer instance.
+ * Return nullptr if no buffer available.
+ * @since 20
+ */
+OH_AVBuffer *OH_VideoEncoder_GetOutputBuffer(struct OH_AVCodec *codec, uint32_t index);
+
 /**
  * @brief Get the input data description of the encoder after call {@OH_VideoEncoder_Configure},
  * refer to {@link OH_AVFormat} for details. It should be noted that the life cycle of the OH_AVFormat
diff --git a/multimedia/av_codec/video_encoder/libnative_media_venc.ndk.json b/multimedia/av_codec/video_encoder/libnative_media_venc.ndk.json
index 0f61de3ea0adfc64ec80b58749405368c3855280..87dd03ac84bf6638637fec93a002ed2de94bb7f0 100644
--- a/multimedia/av_codec/video_encoder/libnative_media_venc.ndk.json
+++ b/multimedia/av_codec/video_encoder/libnative_media_venc.ndk.json
@@ -90,5 +90,21 @@
     {
         "first_introduced": "12",
         "name": "OH_VideoEncoder_PushInputParameter"
+    },
+    {
+        "first_introduced": "20",
+        "name": "OH_VideoEncoder_QueryInputBuffer"
+    },
+    {
+        "first_introduced": "20",
+        "name": "OH_VideoEncoder_QueryOutputBuffer"
+    },
+    {
+        "first_introduced": "20",
+        "name": "OH_VideoEncoder_GetInputBuffer"
+    },
+    {
+        "first_introduced": "20",
+        "name": "OH_VideoEncoder_GetOutputBuffer"
     }
 ]