case H264_SEI_TYPE_RECOVERY_POINT:
case H264_SEI_TYPE_DISPLAY_ORIENTATION:
case H264_SEI_TYPE_MASTERING_DISPLAY_COLOUR_VOLUME:
+ case H264_SEI_TYPE_ALTERNATIVE_TRANSFER:
break;
case H264_SEI_TYPE_USER_DATA_REGISTERED:
av_buffer_unref(&payload->payload.user_data_registered.data_ref);