diff --git a/decoder.h b/decoder.h
index 028f58f..4428ac1 100644
--- a/decoder.h
+++ b/decoder.h
@@ -39,6 +39,8 @@ extern "C" {
 #define AV_SAMPLE_FMT_S16 SAMPLE_FMT_S16
 #endif
 
+#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000
+
 class Decoder
 {
 public:
diff --git a/ffmpeg/audioconvert.h b/ffmpeg/audioconvert.h
index 2b28e2e..a699986 100644
--- a/ffmpeg/audioconvert.h
+++ b/ffmpeg/audioconvert.h
@@ -79,7 +79,7 @@ int avcodec_channel_layout_num_channels(int64_t channel_layout);
  * @param fmt_name Format name, or NULL if unknown
  * @return Channel layout mask
  */
-uint64_t avcodec_guess_channel_layout(int nb_channels, enum CodecID codec_id, const char *fmt_name);
+uint64_t avcodec_guess_channel_layout(int nb_channels, enum AVCodecID codec_id, const char *fmt_name);
 
 struct AVAudioConvert;
 typedef struct AVAudioConvert AVAudioConvert;