diff --git a/tinyDAV/src/codecs/h263/tdav_codec_h263.c b/tinyDAV/src/codecs/h263/tdav_codec_h263.c
index bc20b360a..ddbd18b65 100755
--- a/tinyDAV/src/codecs/h263/tdav_codec_h263.c
+++ b/tinyDAV/src/codecs/h263/tdav_codec_h263.c
@@ -118,7 +118,7 @@ tdav_codec_h263_t;
 
 #define TDAV_DECLARE_CODEC_H263 tdav_codec_h263_t __codec_h263__
 
-static int tdav_codec_h263_init(tdav_codec_h263_t* self, tdav_codec_h263_type_t type, enum CodecID encoder, enum CodecID decoder);
+static int tdav_codec_h263_init(tdav_codec_h263_t* self, tdav_codec_h263_type_t type, enum AVCodecID encoder, enum AVCodecID decoder);
 static int tdav_codec_h263_deinit(tdav_codec_h263_t* self);
 static int tdav_codec_h263_open_encoder(tdav_codec_h263_t* self);
 static int tdav_codec_h263_open_decoder(tdav_codec_h263_t* self);
@@ -178,7 +178,7 @@ static int tdav_codec_h263_set(tmedia_codec_t* self, const tmedia_param_t* param
     return -1;
 }
 
-int tdav_codec_h263_init(tdav_codec_h263_t* self, tdav_codec_h263_type_t type, enum CodecID encoder, enum CodecID decoder)
+int tdav_codec_h263_init(tdav_codec_h263_t* self, tdav_codec_h263_type_t type, enum AVCodecID encoder, enum AVCodecID decoder)
 {
     int ret = 0;
 
diff --git a/tinyDAV/src/tdav.c b/tinyDAV/src/tdav.c
index e264f2bfc..8dca72b05 100755
--- a/tinyDAV/src/tdav.c
+++ b/tinyDAV/src/tdav.c
@@ -147,6 +147,17 @@ static struct tsk_plugin_s* __dll_plugin_ipsec_wfp = tsk_null; /* IPSec implemen
 
 #if HAVE_FFMPEG
 #	include <libavcodec/avcodec.h>
+#	if LIBAVCODEC_VERSION_MAJOR >= 54
+	AVCodecContext *avcodec_alloc_context(void) {
+		return avcodec_alloc_context3(NULL);
+	}
+	void avcodec_get_context_defaults(AVCodecContext *s) {
+		avcodec_get_context_defaults3(s, NULL);
+	}
+	int avcodec_open(AVCodecContext *avctx, AVCodec *codec) {
+		return avcodec_open2(avctx, codec, NULL);
+	}
+#	endif
 #endif
 
 static inline int _tdav_codec_plugins_collect();