diff --git a/multimedia/av_codec/native_avcodec_base.h b/multimedia/av_codec/native_avcodec_base.h
index 7a2f56884630f4686b45917127ea941a06b7a3ad..8c05b974f46e0accb21b00f6ec9dccba1d190c31 100644
--- a/multimedia/av_codec/native_avcodec_base.h
+++ b/multimedia/av_codec/native_avcodec_base.h
@@ -537,6 +537,18 @@ extern const char *OH_MD_KEY_VIDEO_ENCODER_QP_MAX;
  */
 extern const char *OH_MD_KEY_VIDEO_ENCODER_QP_MIN;
 
+/**
+ * @brief Key for color space conversion when decoding video.
+ * When configuring decoder, set the value of the key to point the output color space. \n
+ * See {@link OH_NativeBuffer_ColorSpace}. Supported values: {@link OH_COLORSPACE_BT709_LIMIT}.\n
+ * Only if the input of decoder is HDR Vivid video, the output of the decoder is SDR video
+ * with color space BT709. Otherwise, the decoder reports an error through decoder's callback.
+ *
+ * @syscap SystemCapability.Multimedia.Media.CodecBase
+ * @since 12
+ */
+extern const char *OH_MD_KEY_VIDEO_DECODER_OUTPUT_COLORSPACE;
+
 /**
  * @brief Media type.
  * @syscap SystemCapability.Multimedia.Media.CodecBase